A practical reference on pentapeptide: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2025-11-19 and is reviewed periodically as new material appears.
One distinguishing feature reported in animal studies is selectivity. Ipamorelin stimulated growth hormone release with limited elevation of adrenocorticotropic hormone or cortisol compared with earlier secretagogues such as GHRP-6. This pattern has been described as more selective for the growth hormone axis. The finding comes mainly from preclinical work, and the degree to which it holds across species and doses is not fully settled. Reports also describe effects on gastric motility in animal models, suggesting activity outside the pituitary, though the clinical relevance of this observation is uncertain.
Ipamorelin is a synthetic pentapeptide that acts on the growth hormone secretagogue receptor, also known as the ghrelin receptor. Its sequence contains five amino acid residues, including a non-natural residue that increases stability against enzymatic breakdown. The compound was developed in the 1990s as part of research into small peptides that stimulate pituitary hormone release. Unlike larger protein hormones, it can be produced by solid-phase peptide synthesis and characterized by standard analytical methods.
Compared with older secretagogues such as hexarelin or GHRP-6, ipamorelin shows weaker stimulation of cortisol, prolactin, and appetite in the animal models used for early characterization. Whether that selectivity is preserved across longer human exposures remains an open question, because published clinical data are limited in size and duration. Reported effects on food intake are generally described as modest. The compound is therefore treated in the literature as a relatively selective research tool rather than a fully characterized therapeutic agent.
Ipamorelin is a synthetic pentapeptide that belongs to the growth hormone secretagogue class of compounds. Researchers at a pharmaceutical company first described it in the 1990s while screening small peptides for growth hormone releasing activity. Its chain contains five amino acid residues, two of which are non-natural building blocks, including 2-aminoisobutyric acid and a naphthylalanine derivative. The molecule was designed to act at the ghrelin receptor while avoiding several effects observed with earlier secretagogues.
| Property | Value | Notes |
|---|---|---|
| Molecular class | Synthetic pentapeptide | Chain of five amino acid residues |
| Molecular mass | Approximately 712 Da | Consistent with a five-residue chain |
| Receptor target | GHS-R1a | Growth hormone secretagogue receptor |
| Primary action | Growth hormone release | Pituitary somatotroph stimulation |
| Research origin | Developed in the 1990s | Small-peptide secretagogue program |
Lyophilized material is generally stored cold and dry, with desiccant, and protected from light. In solution the peptide is more vulnerable: the histidine side chain can oxidize, and repeated freeze-thaw cycles promote aggregation and loss of material to container surfaces. A mildly acidic aqueous buffer is often used for short-term handling because it limits several degradation routes. Accurate prediction of long-term stability under a given set of conditions is difficult, and published stability data remain sparse.
Published discussion of this compound is uneven. Some references describe it as a tool for probing growth hormone regulation, while others focus on analytical characterization or on comparisons with related secretagogues. Statements about selectivity, half-life and potency often trace back to a small number of original reports that later authors cite secondhand. Readers evaluating a claim should therefore check whether a figure reflects a direct measurement or a repeated citation, and whether the underlying study was conducted in animals, in isolated cells or in human volunteers.
Identity and purity assessment for a research peptide of this kind typically combines reversed-phase high-performance liquid chromatography with mass spectrometry. The chromatographic run separates related impurities and yields a purity percentage, while electrospray ionization or matrix-assisted laser desorption mass spectrometry confirms the expected molecular mass. Amino acid analysis or tandem mass spectrometry sequencing can add confidence when material is intended for quantitative work. Laboratories differ in how they calculate and report purity, so figures from different sources are not always directly comparable.
冻干状态下的肽通常比溶液状态更稳定，常规做法是维持 -20 °C 或更低温度、保持干燥并避开强光。复溶后的降解主要来自水解、氧化与脱酰胺，速率受 pH、缓冲液种类、离子强度与温度共同影响，碱性条件一般会加快这些反应。反复冻融会造成聚集与容器吸附损失，分装保存能降低该风险。容器材质与金属离子也可能参与氧化过程，需与操作条件一并考虑。
对 ipamorelin 的常规表征以反相高效液相色谱测定纯度，检测波长多设为 214 nm，因为肽键在该波长有较强吸收。身份确认通常借助电喷雾电离质谱或串联质谱，将实测分子量与理论值逐项比对。序列层面可用肽图分析或氨基酸分析进一步验证。这些手段组合起来，可以分别覆盖纯度、身份与序列三个不同层次的信息。
Quality control for research-grade ipamorelin is not governed by a single harmonized pharmacopeial monograph, so certificates of analysis vary between suppliers. Common tests include appearance, solubility, water content, peptide content by quantitative amino acid analysis, and residual counterion measurement. Independent verification by an outside laboratory is often used to confirm identity and purity claims. Salt form, counterion content, and residual solvent levels are frequently unspecified, which complicates direct comparison between lots and leaves reproducibility partly unresolved.
Identity and purity assessment of ipamorelin relies mainly on reversed-phase high-performance liquid chromatography with ultraviolet detection near 214 nanometers, a wavelength where the peptide backbone absorbs. Mass confirmation is typically obtained by electrospray ionization mass spectrometry or by liquid chromatography coupled to mass spectrometry, comparing the observed mass with the calculated value. Amino acid analysis and peptide mapping after enzymatic digestion can confirm the sequence. Impurity profiles include deletion peptides, truncated fragments, and oxidation products, reported as relative area percentages.
Selectivity is the property most often attached to this peptide. Published animal and early human studies record increases in growth hormone release after administration, with adrenocorticotropic hormone and cortisol responses remaining small by comparison. Effects on appetite-related pathways also appear weaker than those reported for several earlier secretagogues. Reviews that compare members of the growth hormone secretagogue family cite these findings frequently, though the receptor-level explanation for the selectivity continues to be debated rather than settled.
Ipamorelin is a synthetic pentapeptide classified as a growth hormone secretagogue. Its sequence, Aib-His-D-2-Nal-D-Phe-Lys-NH2, combines three non-proteinogenic residues with a C-terminal amide. The N-terminal aminoisobutyric acid unit and the two aromatic D-amino acids distinguish it from peptides assembled only from standard L-amino acids. Its formula is C38H49N9O5, corresponding to an average mass near 711.9 Da. At neutral pH the molecule carries a net positive charge, a property that shapes its behaviour in chromatographic and electrophoretic systems.
The compound was developed at Novo Nordisk during the 1990s as part of a programme seeking secretagogues with improved selectivity. It was described in the peer-reviewed literature in 1998 alongside related pentapeptides from the same series. Investigators advanced it because it raised growth hormone output in animal models while leaving other pituitary hormones comparatively unaffected. The development code NNC 26-0161 appears in earlier reports, and ipamorelin later became the common designation in published work.
If early organisms had been driven by the same environmental conditions to evolve similar biochemistry convergently, they might independently have acquired similar genetic sequences. Theobald's "formal test" was accordingly criticised by Takahiro Yonezawa and colleagues for not including consideration of convergence. They argued that Theobald's test was insufficient to distinguish between the competing hypotheses. Theobald has defended his method against this claim, arguing that his tests distinguish between phylogenetic structure and mere sequence similarity. Therefore, Theobald argued, his results show that "real universally conserved proteins are homologous."
In fluid dynamics, the continuity equation states that the rate at which mass enters a system is equal to the rate at which mass leaves the system plus the accumulation of mass within the system. The differential form of the continuity equation is:
=== Aboriginal support === Starting with Norm McDonald in 1947, Essendon has a proud history of fostering Aboriginal talent at the top level. This came to the fore during the 1990s with players such as Michael Long, Derek Kickett, Gavin Wanganeen, and Dean Rioli rising through the ranks and being fostered by Kevin Sheedy. Dreamtime at the 'G and the Long Walk are two prominent annual events staged to help promote and support Aboriginal culture. The Long Walk, specifically, is designed to raise money for Indigenous education programs across the country. Additionally, Essendon is a supporter of the Voice to Parliament.
According to a 2010 report on co-authored by Miron, the annual savings on enforcement and incarceration costs from the legalization of drugs would amount to roughly $41.3 billion, with $25.7 billion being saved among the states and over $15.6 billion accrued for the federal government. Miron further estimated at least $46.7 billion in tax revenue based on rates comparable to those on tobacco and alcohol: $8.7 billion from marijuana, $32.6 billion from cocaine and heroin, and $5.4 billion from other drugs. Regarding economic arguments for legalization that make a comparison with alcohol, a 2013 study noted that the $14.6 billion in annual alcohol tax collected at the US federal and state levels represented less than 10% of the estimated $185 billion of alcohol-related health care, criminal justice and lost productivity costs.
==== Thermal Ionization MS ==== In thermal ionization mass spectrometry, small quantities of highly purified analyte are deposited onto a clean metal filament. Rhenium or tungsten are typically used. The sample is heated in a vacuum of the ion source by applying a current to the filaments. A portion of the analyte will be ionized by the filament and then are directed down the flight tube and separated based on mass to charge ratios. Major disadvantages include time-consuming sample preparation and inefficient analyte ionization.
Sources: en.wikipedia.org
SCGJWD Logistics Public Company Limited (SCGJWD; SET: SJWD) was established through a partnership merger between SCG Logistics Management Co., Ltd. (SCGL), a subsidiary of Siam Cement Group, and JWD InfoLogistics (JWD). The share swap transaction was completed on February 14, 2023, and the trading symbol was changed to "SJWD" on February 17, 2023. SCGJWD Logistics Public Company Limited is an integrated logistics service provider with expertise in industrial products, general goods, chemicals, automotive goods and cold chain storage.
== Nutrition and health == Koya-dofu is high in nutritional value. The way it is produced lets soy protein mature naturally, which helps in the development of new textures, preserving maximum nutritious value. Phytonutrients become more concentrated in it. Freeze-dried tofu serves as a source of protein, iron, and calcium. Consumption of this type of tofu lowers the risk of heart disease, diabetes, and obesity.
By the 15th century, tulips were among the most prized flowers; becoming the symbol of the later Ottomans. Tulips were cultivated in Byzantine Constantinople as early as 1055 but they did not come to the attention of Northern Europeans until the sixteenth century, when Northern European diplomats to the Ottoman court observed and reported on them. They were rapidly introduced into Northern Europe and became the subject of an investment bubble during the Dutch tulip mania of 1634–1637. Tulips were frequently depicted in Dutch Golden Age paintings, and have become associated with the Netherlands, the major producer for world markets, ever since. In the seventeenth-century Netherlands, during the time of the tulip mania, an infection of tulip bulbs by the tulip breaking virus created variegated patterns in the tulip flowers that were much admired and valued. While truly broken tulips are not cultivated anymore, the closest available specimens today are part of the group known as the Rembrandts – so named because Rembrandt painted some of the most admired breaks of his time. Breeding programmes have produced thousands of hybrid and cultivars in addition to the original species (known in horticulture as botanical tulips). They are popular throughout the world, both as ornamental garden plants and as cut flowers.
Moreover, the amyloid β-protein deposit and nerve cell apoptosis were retarded. An observed inhibitory impact of oxytocin on the inflammatory activity of the microglia was proposed to be an important factor.
Sources: en.wikipedia.org
The first refrigerated cars in Japan entered service in 1908, primarily for fish transport. They were of the ReSo 200 type, from 1909, followed by the ReSo 210 type, from 1912, and then the ReSo 230 type; all were reclassified into Re 1 type in 1928. Many of these cars were equipped with ice bunkers, but the bunkers were not generally used. Fish were packed in wooden or foam polystyrene boxes with crushed ice. Transporting fruit, vegetables, and meat in refrigerated rail cars was uncommon in Japan. For fruits and vegetables, ventilated cars were sufficient due to the relatively short distances involved. In contrast, meat, which requires low-temperature storage, was typically transported by ship, as most major Japanese cities are located along the coast. Refrigerator cars suffered heavy damage in World War II. After the war, the occupation forces confiscated many cars for their own use, using the ice bunkers as originally intended. Supplies were landed primarily at Yokohama, and reefer trains ran from the port to U.S. bases around Japan. Around this time, the surviving pre-war refrigerator cars were gradually retired and replaced with newer types. In 1966, JNR developed the ReSa 10000 and ReMuFu 10000 type refrigerated cars that could travel at 100 km/h (62 mph). They were used in fish freight express trains. "Tobiuo" (Flying fish) train from Shimonoseki to Tokyo, and "Ginrin" (Silver scale) train from Hakata to Tokyo, were operated. By the 1960s, refrigerator trucks had begun to displace railcars.
Therefore, a large profit potential exists for the manufacturers and suppliers of processed food products. Individuals may see a benefit in convenience, but rarely see any direct financial cost benefit in using processed food as compared to home preparation. Processed food freed people from the large amount of time involved in preparing and cooking "natural" unprocessed foods. The increase in free time allows people much more choice in life style than previously allowed. In many families the adults are working away from home and therefore there is little time for the preparation of food based on fresh ingredients. The food industry offers products that fulfill many different needs: e.g. fully prepared ready meals that can be heated up in the microwave oven within a few minutes. Modern food processing also improves the quality of life for people with allergies, diabetics, and other people who cannot consume some common food elements. Food processing can also add extra nutrients such as vitamins.
=== EC 2.3.1: Transferring groups other than amino-acyl groups === EC 2.3.1.1: amino-acid N-acetyltransferase EC 2.3.1.2: imidazole N-acetyltransferase EC 2.3.1.3: glucosamine N-acetyltransferase EC 2.3.1.4: glucosamine-phosphate N-acetyltransferase EC 2.3.1.5: arylamine N-acetyltransferase EC 2.3.1.6: choline O-acetyltransferase EC 2.3.1.7: carnitine O-acetyltransferase EC 2.3.1.8: phosphate acetyltransferase EC 2.3.1.9: acetyl-CoA C-acetyltransferase EC 2.3.1.10: hydrogen-sulfide S-acetyltransferase EC 2.3.1.11: thioethanolamine S-acetyltransferase EC 2.3.1.12: dihydrolipoyllysine-residue acetyltransferase EC 2.3.1.13: glycine N-acyltransferase EC 2.3.1.14: glutamine N-phenylacetyltransferase EC 2.3.1.15: glycerol-3-phosphate O-acyltransferase EC 2.3.1.16: acetyl-CoA C-acyltransferase EC 2.3.1.17: aspartate N-acetyltransferase EC 2.3.1.18: galactoside O-acetyltransferase EC 2.3.1.19: phosphate butyryltransferase EC 2.3.1.20: diacylglycerol O-acyltransferase EC 2.3.1.21: carnitine O-palmitoyltransferase EC 2.3.1.22: 2-acylglycerol O-acyltransferase EC 2.3.1.23: 1-acylglycerophosphocholine O-acyltransferase EC 2.3.1.24: sphingosine N-acyltransferase EC 2.3.1.25: plasmalogen synthase EC 2.3.1.26: sterol O-acyltransferase EC 2.3.1.27: cortisol O-acetyltransferase EC 2.3.1.28: chloramphenicol O-acetyltransferase EC 2.3.1.29: glycine C-acetyltransferase EC 2.3.1.30: serine O-acetyltransferase EC 2.3.1.31: homoserine O-acetyltransferase EC 2.3.1.32: lysine N-acetyltransferase EC 2.3.1.33: histidine N-acetyltransferase EC 2.3.1.34: D-tryptophan N-acetyltransferase EC 2.3.1.35: glutamate N-acetyltransferase EC 2.3.1.36: D-amino-acid N-acetyltransferase EC 2.3.1.37: 5-aminolevulinate synthase EC 2.3.1.38: [acyl-carrier-protein] S-acetyltransferase EC 2.3.1.39: [acyl-carrier-protein] S-malonyltransferase EC 2.3.1.40: acyl-[acyl-carrier-protein]—phospholipid O-acyltransferase EC 2.3.1.41: β-ketoacyl-[acyl-carrier-protein] synthase I EC 2.3.1.42: glycerone-phosphate O-acyltransferase EC 2.3.1.43: phosphatidylcholine—sterol O-acyltransferase EC 2.3.1.44: N-acetylneuraminate 4-O-acetyltransferase EC 2.3.1.45: N-acetylneuraminate 7-O(or 9-O)-acetyltransferase EC 2.3.1.46: homoserine O-succinyltransferase EC 2.3.1.47: 8-amino-7-oxononanoate synthase EC 2.3.1.48: histone acetyltransferase EC 2.3.1.49: deacetyl-(citrate-(pro-3S)-lyase) S-acetyltransferase EC 2.3.1.50: serine C-palmitoyltransferase EC 2.3.1.51: 1-acylglycerol-3-phosphate O-acyltransferase EC 2.3.1.52: 2-acylglycerol-3-phosphate O-acyltransferase EC 2.3.1.53: phenylalanine N-acetyltransferase EC 2.3.1.54: formate C-acetyltransferase EC 2.3.1.55: identical to EC 2.3.1.82 EC 2.3.1.56: aromatic-hydroxylamine O-acetyltransferase EC 2.3.1.57: diamine N-acetyltransferase EC 2.3.1.58: 2,3-diaminopropionate N-oxalyltransferase EC 2.3.1.59: gentamicin 2′-N-acetyltransferase EC 2.3.1.60: gentamicin 3′-N-acetyltransferase EC 2.3.1.61: dihydrolipoyllysine-residue succinyltransferase EC 2.3.1.62: 2-acylglycerophosphocholine O-acyltransferase EC 2.3.1.63: 1-alkylglycerophosphocholine O-acyltransferase EC 2.3.1.64: agmatine N4-coumaroyltransferase EC 2.3.1.65: bile acid-CoA:amino acid N-acyltransferase EC 2.3.1.66: leucine N-acetyltransferase EC 2.3.1.67: 1-alkylglycerophosphocholine O-acetyltransferase EC 2.3.1.68: glutamine N-acyltransferase EC 2.3.1.69: monoterpenol O-acetyltransferase EC 2.3.1.70: deleted EC 2.3.1.71: glycine N-benzoyltransferase EC 2.3.1.72: indoleacetylglucose—inositol O-acyltransferase EC 2.3.1.73: diacylglycerol—sterol O-acyltransferase EC 2.3.1.74: chalcone synthase EC 2.3.1.75: long-chain-alcohol O-fatty-acyltransferase EC 2.3.1.76: retinol O-fatty-acyltransferase EC 2.3.1.77: triacylglycerol—sterol O-acyltransferase EC 2.3.1.78: heparan-α-glucosaminide N-acetyltransferase EC 2.3.1.79: maltose O-acetyltransferase EC 2.3.1.80: cysteine-S-conjugate N-acetyltransferase EC 2.3.1.81: aminoglycoside 3-N-acetyltransferase EC 2.3.1.82: aminoglycoside 6′-N-acetyltransferase EC 2.3.1.83: phosphatidylcholine—dolichol O-acyltransferase EC 2.3.1.84: alcohol O-acetyltransferase EC 2.3.1.85: fatty-acid synthase system EC 2.3.1.86: fatty-acyl-CoA synthase system EC 2.3.1.87: aralkylamine N-acetyltransferase EC 2.3.1.88: Now covered by EC 2.3.1.254, EC 2.3.1.255, EC 2.3.1.256, EC 2.3.1.257, EC 2.3.1.258 and EC 2.3.1.259 EC 2.3.1.89: tetrahydrodipicolinate N-acetyltransferase EC 2.3.1.90: β-glucogallin O-galloyltransferase EC 2.3.1.91: sinapoylglucose—choline O-sinapoyltransferase EC 2.3.1.92: sinapoylglucose—malate O-sinapoyltransferase EC 2.3.1.93: 13-hydroxylupinine O-tigloyltransferase EC 2.3.1.94: 6-deoxyerythronolide-B synthase EC 2.3.1.95: trihydroxystilbene synthase EC 2.3.1.96: glycoprotein N-palmitoyltransferase EC 2.3.1.97: glycylpeptide N-tetradecanoyltransferase EC 2.3.1.98: chlorogenate—glucarate O-hydroxycinnamoyltransferase EC 2.3.1.99: quinate O-hydroxycinnamoyltransferase EC 2.3.1.100: [myelin-proteolipid] O-palmitoyltransferase EC 2.3.1.101: formylmethanofuran—tetrahydromethanopterin N-formyltransferase EC 2.3.1.102: N6-hydroxylysine O-acetyltransferase EC 2.3.1.103: sinapoylglucose—sinapoylglucose O-sinapoyltransferase EC 2.3.1.104: The activity is covered by EC 2.3.1.25 EC 2.3.1.105: alkylglycerophosphate 2-O-acetyltransferase EC 2.3.1.106: tartronate O-hydroxycinnamoyltransferase EC 2.3.1.107: deacetylvindoline O-acetyltransferase EC 2.3.1.108: α-tubulin N-acetyltransferase EC 2.3.1.109: arginine N-succinyltransferase EC 2.3.1.110: tyramine N-feruloyltransferase EC 2.3.1.111: mycocerosate synthase EC 2.3.1.112: D-tryptophan N-malonyltransferase EC 2.3.1.113: anthranilate N-malonyltransferase EC 2.3.1.114: 3,4-dichloroaniline N-malonyltransferase EC 2.3.1.115: isoflavone-7-O-β-glucoside 6′′-O-malonyltransferase EC 2.3.1.116: flavonol-3-O-β-glucoside O-malonyltransferase EC 2.3.1.117: 2,3,4,5-tetrahydropyridine-2,6-dicarboxylate N-succinyltransferase EC 2.3.1.118: N-hydroxyarylamine O-acetyltransferase EC 2.3.1.119: Now covered by EC 2.3.1.199, EC 1.1.1.330, EC 4.2.1.134 and EC 1.3.1.93 EC 2.3.1.120: The reaction is due to EC 2.3.1.74 EC 2.3.1.121: 1-alkenylglycerophosphoethanolamine O-acyltransferase EC 2.3.1.122: trehalose O-mycolyltransferase EC 2.3.1.123: dolichol O-acyltransferase EC 2.3.1.124: Already listed as EC 2.3.1.20 EC 2.3.1.125: 1-alkyl-2-acetylglycerol O-acyltransferase EC 2.3.1.126: isocitrate O-dihydroxycinnamoyltransferase EC 2.3.1.127: ornithine N-benzoyltransferase EC 2.3.1.128: now classified as EC 2.3.1.266 and EC 2.3.1.267 EC 2.3.1.129: acyl-[acyl-carrier-protein]—UDP-N-acetylglucosamine O-acyltransferase EC 2.3.1.130: galactarate O-hydroxycinnamoyltransferase EC 2.3.1.131: glucarate O-hydroxycinnamoyltransferase EC 2.3.1.132: glucarolactone O-hydroxycinnamoyltransferase EC 2.3.1.133: shikimate O-hydroxycinnamoyltransferase EC 2.3.1.134: galactolipid O-acyltransferase EC 2.3.1.135: phosphatidylcholine—retinol O-acyltransferase EC 2.3.1.136: polysialic-acid O-acetyltransferase EC 2.3.1.137: carnitine O-octanoyltransferase EC 2.3.1.138: putrescine N-hydroxycinnamoyltransferase EC 2.3.1.139: ecdysone O-acyltransferase EC 2.3.1.140: rosmarinate synthase EC 2.3.1.141: galactosylacylglycerol O-acyltransferase EC 2.3.1.142: glycoprotein O-fatty-acyltransferase EC 2.3.1.143: β-glucogallin—tetrakisgalloylglucose O-galloyltransferase EC 2.3.1.144: anthranilate N-benzoyltransferase EC 2.3.1.145: piperidine N-piperoyltransferase EC 2.3.1.146: pinosylvin synthase EC 2.3.1.147: glycerophospholipid arachidonoyl-transferase (CoA-independent) EC 2.3.1.148: glycerophospholipid acyltransferase (CoA-dependent) EC 2.3.1.149: platelet-activating factor acetyltransferase EC 2.3.1.150: salutaridinol 7-O-acetyltransferase EC 2.3.1.151: 2,3′,4,6-tetrahydroxybenzophenone synthase EC 2.3.1.152: alcohol O-cinnamoyltransferase EC 2.3.1.153: anthocyanin 5-(6′′′-hydroxycinnamoyltransferase) EC 2.3.1.154: Now EC 2.3.1.176 EC 2.3.1.155: acetyl-CoA C-myristoyltransferase EC 2.3.1.156: phloroisovalerophenone synthase EC 2.3.1.157: glucosamine-1-phosphate N-acetyltransferase EC 2.3.1.158: phospholipid:diacylglycerol acyltransferase EC 2.3.1.159: acridone synthase EC 2.3.1.160: vinorine synthase EC 2.3.1.161: lovastatin nonaketide synthase EC 2.3.1.162: taxadien-5α-ol O-acetyltransferase EC 2.3.1.163: 10-hydroxytaxane O-acetyltransferase EC 2.3.1.164: isopenicillin-N N-acyltransferase EC 2.3.1.165: 6-methylsalicylic acid synthase EC 2.3.1.166: 2α-hydroxytaxane 2-O-benzoyltransferase EC 2.3.1.167: 10-deacetylbaccatin III 10-O-acetyltransferase EC 2.3.1.168: dihydrolipoyllysine-residue (2-methylpropanoyl)transferase EC 2.3.1.169: CO-methylating acetyl-CoA synthase EC 2.3.1.170: 6′-deoxychalcone synthase EC 2.3.1.171: anthocyanin 6′′-O-malonyltransferase EC 2.3.1.172: anthocyanin 5-O-glucoside 6′′′-O-malonyltransferase EC 2.3.1.173: flavonol-3-O-triglucoside O-coumaroyltransferase EC 2.3.1.174: 3-oxoadipyl-CoA thiolase EC 2.3.1.175: deacetylcephalosporin-C acetyltransferase EC 2.3.1.176: propanoyl-CoA C-acyltransferase EC 2.3.1.177: 3,5-dihydroxybiphenyl synthase EC 2.3.1.178: diaminobutyrate acetyltransferase EC 2.3.1.179: β-ketoacyl-[acyl-carrier-protein] synthase II EC 2.3.1.180: β-ketoacyl-[acyl-carrier-protein] synthase III EC 2.3.1.181: lipoyl(octanoyl) transferase EC 2.3.1.182: Now covered by EC 2.3.3.21 EC 2.3.1.183: phosphinothricin acetyltransferase EC 2.3.1.184: acyl-homoserine-lactone synthase EC 2.3.1.185: tropine acyltransferase EC 2.3.1.186: pseudotropine acyltransferase EC 2.3.1.187: acetyl-S-ACP:malonate ACP transferase EC 2.3.1.188: ω-hydroxypalmitate O-feruloyl transferase EC 2.3.1.189: mycothiol synthase EC 2.3.1.190: acetoin dehydrogenase EC 2.3.1.191: UDP-3-O-(3-hydroxyacyl)glucosamine N-acyltransferase EC 2.3.1.192: glycine N-phenylacetyltransferase EC 2.3.1.193: tRNAMetcytidine acetyltransferase EC 2.3.1.194: acetoacetyl-CoA synthase EC 2.3.1.195: (Z)-3-hexen-1-ol acetyltransferase EC 2.3.1.196: benzyl alcohol O-benzoyltransferase EC 2.3.1.197: dTDP-3-amino-3,6-dideoxy-α-D-galactopyranose 3-N-acetyltransferase EC 2.3.1.198: glycerol-3-phosphate 2-O-acyltransferase EC 2.3.1.199: very-long-chain 3-oxoacyl-CoA synthase EC 2.3.1.200: lipoyl amidotransferase EC 2.3.1.201: UDP-2-acetamido-3-amino-2,3-dideoxy-glucuronate N-acetyltransferase EC 2.3.1.202: UDP-4-amino-4,6-dideoxy-N-acetyl-β-L-altrosamine N-acetyltransferase EC 2.3.1.203: UDP-N-acetylbacillosamine N-acetyltransferase EC 2.3.1.204: octanoyl-[GcvH]:protein N-octanoyltransferase EC 2.3.1.205: fumigaclavine B O-acetyltransferase EC 2.3.1.206: 3,5,7-trioxododecanoyl-CoA synthase EC 2.3.1.207: β-ketodecanoyl-[acyl-carrier-protein] synthase EC 2.3.1.208: 4-hydroxycoumarin synthase EC 2.3.1.209: dTDP-4-amino-4,6-dideoxy-D-glucose acyltransferase EC 2.3.1.210: dTDP-4-amino-4,6-dideoxy-D-galactose acyltransferase EC 2.3.1.211: bisdemethoxycurcumin synthase EC 2.3.1.212: benzalacetone synthase EC 2.3.1.213: cyanidin 3-O-(6-O-glucosyl-2-O-xylosylgalactoside) 6′′′-O-hydroxycinnamoyltransferase EC 2.3.1.214: pelargonidin 3-O-(6-caffeoylglucoside) 5-O-(6-O-malonylglucoside) 4′′′-malonyltransferase EC 2.3.1.215: anthocyanin 3-O-glucoside 6-O-hydroxycinnamoyltransferase EC 2.3.1.216: 5,7-dihydroxy-2-methylchromone synthase EC 2.3.1.217: curcumin synthase EC 2.3.1.218: phenylpropanoylacetyl-CoA synthase EC 2.3.1.219: demethoxycurcumin synthase EC 2.3.1.220: 2,4,6-trihydroxybenzophenone synthase EC 2.3.1.221: noranthrone synthase EC 2.3.1.222: phosphate propanoyltransferase EC 2.3.1.223: 3-oxo-5,6-didehydrosuberyl-CoA thiolase EC 2.3.1.224: acetyl-CoA-benzylalcohol acetyltransferase EC 2.3.1.225: protein S-acyltransferase EC 2.3.1.226: carboxymethylproline synthase EC 2.3.1.227: GDP-perosamine N-acetyltransferase EC 2.3.1.228: isovaleryl-homoserine lactone synthase EC 2.3.1.229: 4-coumaroyl-homoserine lactone synthase EC 2.3.1.230: 2-heptyl-4(1H)-quinolone synthase EC 2.3.1.231: tRNAPhe {7-[3-amino-3-(methoxycarbonyl)propyl]wyosine37 -N}-methoxycarbonyltransferase EC 2.3.1.232: methanol O-anthraniloyltransferase EC 2.3.1.233: 1,3,6,8-tetrahydroxynaphthalene synthase EC 2.3.1.234: N6-L-threonylcarbamoyladenine synthase EC 2.3.1.235: tetracenomycin F2 synthase EC 2.3.1.236: 5-methylnaphthoic acid synthase EC 2.3.1.237: neocarzinostatin naphthoate synthase EC 2.3.1.238: monacolin J acid methylbutanoate transferase EC 2.3.1.239: 10-deoxymethynolide synthase EC 2.3.1.240: narbonolide synthase EC 2.3.1.241: Kdo2-lipid IVA lauroyltransferase EC 2.3.1.242: Kdo2-lipid IVA palmitoleoyltransferase EC 2.3.1.243: lauroyl-Kdo2-lipid IVA myristoyltransferase EC 2.3.1.244: 2-methylbutanoate polyketide synthase EC 2.3.1.245: 3-hydroxy-5-phosphooxypentane-2,4-dione thiolase EC 2.3.1.246: 3,5-dihydroxyphenylacetyl-CoA synthase EC 2.3.1.247: 3-keto-5-aminohexanoate cleavage enzyme EC 2.3.1.248: spermidine disinapoyl transferase EC 2.3.1.249: spermidine dicoumaroyl transferase EC 2.3.1.250: [Wnt protein] O-palmitoleoyl transferase EC 2.3.1.251: lipid IVA palmitoyltransferase EC 2.3.1.252: mycolipanoate synthase EC 2.3.1.253: phloroglucinol synthase EC 2.3.1.254: N-terminal methionine Nα-acetyltransferase NatB EC 2.3.1.255: N-terminal amino-acid Nα-acetyltransferase NatA EC 2.3.1.256: N-terminal methionine Nα-acetyltransferase NatC EC 2.3.1.257: N-terminal L-serine Nα-acetyltransferase NatD EC 2.3.1.258: N-terminal methionine Nα-acetyltransferase NatE EC 2.3.1.259: N-terminal methionine Nα-acetyltransferase NatF EC 2.3.1.260: tetracycline polyketide synthase EC 2.3.1.261: (4-hydroxyphenyl)alkanoate synthase EC 2.3.1.262: anthraniloyl-CoA anthraniloyltransferase EC 2.3.1.263: 2-amino-4-oxopentanoate thiolase EC 2.3.1.264: β-lysine N6-acetyltransferase EC 2.3.1.265: phosphatidylinositol dimannoside acyltransferase EC 2.3.1.266: [ribosomal protein S18]-alanine N-acetyltransferase EC 2.3.1.267: [ribosomal protein S5]-alanine N-acetyltransferase EC 2.3.1.268: ethanol O-acetyltransferase EC 2.3.1.269: apolipoprotein N-acyltransferase EC 2.3.1.270: lyso-ornithine lipid O-acyltransferase EC 2.3.1.271: L-glutamate-5-semialdehyde N-acetyltransferase EC 2.3.1.272: 2-acetylphloroglucinol acetyltransferase EC 2.3.1.273: diglucosylglycerate octanoyltransferase EC 2.3.1.274: phosphate acyltransferase EC 2.3.1.275: acyl phosphate:glycerol-3-phosphate acyltransferase EC 2.3.1.276: galactosamine-1-phosphate N-acetyltransferase EC 2.3.1.277: 2-oxo-3-(phosphooxy)propyl 3-oxoalkanoate synthase EC 2.3.1.278: mycolipenoyl-CoA—2-(long-chain-fatty acyl)-trehalose mycolipenoyltransferase EC 2.3.1.279: long-chain-acyl-CoA—trehalose acyltransferase EC 2.3.1.280: (aminoalkyl)phosphonate N-acetyltransferase EC 2.3.1.281: 5-hydroxydodecatetraenal polyketide synthase EC 2.3.1.282: phenolphthiocerol/phthiocerol/phthiodiolone dimycocerosyl transferase EC 2.3.1.283: 2′-acyl-2-O-sulfo-trehalose (hydroxy)phthioceranyltransferase EC 2.3.1.284: 3′-(hydroxy)phthioceranyl-2′-palmitoyl(stearoyl)-2-O-sulfo-trehalose (hydroxy)phthioceranyltransferase EC 2.3.1.285: (13S,14R)-1,13-dihydroxy-N-methylcanadine 13-O-acetyltransferase EC 2.3.1.286: protein acetyllysine N-acetyltransferase EC 2.3.1.287: phthioceranic/hydroxyphthioceranic acid synthase EC 2.3.1.288: 2-O-sulfo trehalose long-chain-acyltransferase EC 2.3.1.289: aureothin polyketide synthase system EC 2.3.1.290: spectinabilin polyketide synthase system EC 2.3.1.291: sphingoid base N-palmitoyltransferase EC 2.3.1.292: (phenol)carboxyphthiodiolenone synthase EC 2.3.1.293: meromycolic acid 3-oxoacyl-(acyl carrier protein) synthase I EC 2.3.1.294: meromycolic acid 3-oxoacyl-(acyl carrier protein) synthase II EC 2.3.1.295: mycoketide-CoA synthase EC 2.3.1.296: ω-hydroxyceramide transacylase EC 2.3.1.297: very-long-chain ceramide synthase EC 2.3.1.298: ultra-long-chain ceramide synthase EC 2.3.1.299: sphingoid base N-stearoyltransferase EC 2.3.1.300: branched-chain β-ketoacyl-[acyl-carrier-protein] synthase EC 2.3.1.301: mycobacterial β-ketoacyl-[acyl carrier protein] synthase III EC 2.3.1.302: hydroxycinnamoyl-CoA:5-hydroxyanthranilate N-hydroxycinnamoyltransferase EC 2.3.1.303: α-L-Rha-(1→2)-α-D-Man-(1→2)-α-D-Man-(1→3)-α-D-Gal-PP-Und 2IV-O-acetyltransferase EC 2.3.1.304: poly[(S)-3-hydroxyalkanoate] polymerase
=== Cap snatching in Hantaviridae === Cap snatching has also been investigated in depth for the family Hantaviridae (Bunyavirales). There is evidence that the N protein binds to the 5' cap and protects them from degradation by cellular machinery. The N protein accumulates in cytoplasmic cellular processing bodies (P bodies), sequestering the protected 5' caps as a pool of available primers for the RdRp to begin viral mRNA synthesis. There are four nucleotides on the vRNA that are adjacent the 5' cap for binding. The virus preferentially cleaves mRNA cap at a G residue 14 nucleotides downstream from the cap. Additionally, it usually cleaves caps from nonsense mRNA instead of actively translated mRNA. The N protein can guard host mRNA caps without P-bodies, but they are not used as efficiently by the RdRp. The Hantaviridae RdRp can also engage in a "prime and realign" mechanism: The host oligonucleotide primes mRNA transcription and initiates transcription with a terminal G residue. After several nucleotides are added, the nascent RNA realigns by moving two nucleotides backwards on the repeated terminal sequence (AUCAUCAUC) so that the host G is once again the first nucleotide, creating a 5' end extension.
The new glass was taller and narrower than the previous one and featured a bevel design. The new glasses were planned to gradually replace the old ones. A practice known as "splitting the G" has been an entry on the Urban Dictionary website since 2018. This drinking game sees the drinker attempt to bring the liquid level of the Guinness to sit at a certain level in relation to the glass' Guinness branding. Variants of the practice see the required liquid level as either: between the letter 'G', on the horizontal line of the 'G', or between the 'G' and the harp logo.
Sources: en.wikipedia.org
It acts on the growth hormone secretagogue receptor, GHS-R1a, which is also the receptor for ghrelin. Binding triggers intracellular signaling that promotes growth hormone release from the pituitary. The interaction is the basis for its classification as a secretagogue.
In animal studies it showed greater selectivity for growth hormone release, with less effect on cortisol and adrenocorticotropic hormone than compounds such as GHRP-6. This selectivity is one of the most frequently cited features in preclinical literature. Whether the same profile applies in other contexts is not fully established.
The receptor-level events are reasonably well described, but the full range of downstream effects is not. Studies have reported activity in tissues beyond the pituitary, including the gut. How these observations translate across species and conditions remains an open question.
It is a synthetic pentapeptide in the growth hormone secretagogue family. The chain contains five residues, two of which are non-natural amino acids.