Acth (1-17) | 7266-47-9

• 物质功能分类: 生物 - 蛋白与多肽 - 多肽激素
• 分子结构分类: 有机化合物 - 有机聚合物 - 多肽
• 英文名称: Acth (1-17)
• 英文别名: (4S)-5-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[2-[[(2S)-6-amino-1-[(2S)-2-[[(2S)-1-[[2-[[(2S)-6-amino-1-[[(2S)-6-amino-1-[[(1S)-4-carbamimidamido-1-carboxybutyl]amino]-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-2-oxoethyl]amino]-3-methyl-1-oxobutan-2-yl]carbamoyl]pyrrolidin-1-yl]-1-oxohexan-2-yl]amino]-2-oxoethyl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-(1H-imidazol-5-yl)-1-oxopropan-2-yl]amino]-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-hydroxypropanoyl]amino]-4-methylsulfanylbutanoyl]amino]-5-oxopentanoic acid
• CAS: 7266-47-9
• 化学式: C₉₅H₁₄₅N₂₉O₂₃S
• 分子量: 2093.4
• InChiKey: MXNMAFWEFLFAJN-QBQLSIIBSA-N

物化性质

• 密度：
  1.48±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.9
• 重原子数：
  148
• 可旋转键数：
  71
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  942
• 氢给体数：
  32
• 氢受体数：
  46

制备方法与用途

生物活性

ACTH (1-17) 是促肾上腺皮质激素类似物，是一种有效的人黑皮素受体 (human melanocortin 1 (MC1) receptor) 激动剂，Ki 值为0.21 nM。

靶点

Ki: 0.21 nM (human MC1 receptor)

体外研究

ACTH (1-17) is a potent agonist at the hMC1R. ACTH (1-17) shows high affinity for the hMC1R with a K _i value of 0.21±0.03 nM which is slightly higher than that of 0.13±0.005 nM for alpha-MSH. ACTH (1-17) induces a slight and not significant increase in growth hormone secretion even when micromolar concentrations of the peptide are employed in rat pituitary cultures.

体内研究

Inhibition of DNA labeling is noted when the ACTH (1-17) is administered at 2 hr after the beginning of the daily dark span when nocturnal animals become active. When administered at this circadian stage, the larger dose in particular is associated with an inhibition of DNA labeling lasting for 24 hr. The inhibitory effect is much shorter when the same dose is injected 4 hr earlier.