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    首页 分子通 按分子结构分类 有机化合物 有机聚合物 多肽

    多肽

    肽是由两个或两个以上氨基酸通过脱水缩合形成的化合物。最简单的肽由两个氨基酸构成，称为二肽；包含多个氨基酸的肽则被称为多肽。通常情况下，含有50个及以上氨基酸单位的多肽，则归类为蛋白质。肽广泛存在于动物、植物和微生物中，在生物体内的生长发育、细胞分化、大脑活动、肿瘤病变、免疫防御、生殖控制以及抗衰老等方面都扮演着重要角色。

    例如，谷胱甘肽是某些酶的重要辅基，参与体内氧化还原反应；多种激素如催产素、加压素、胰高血糖素及促肾上腺皮质激素等，均属于多肽类，通过调节机体代谢发挥作用。下丘脑分泌的激素调节因子也是由多肽构成，控制着其他内分泌腺释放激素的过程。

    近年来，在高等动物的大脑中发现了具有镇痛作用的脑啡肽（五肽）。许多抗生素如多粘菌素、短杆菌肽等也是肽类物质，具备强大的抗菌能力。此外，多肽是指通过肽键连接形成的一系列氨基酸单位构成的长链结构。一般而言，含有数十个或更少氨基酸单位的多肽称为肽；而更多氨基酸单位组成的则被称为蛋白质。

    在命名时，通常按照从氨基末端（N端）到羧基末端（C端）的顺序书写。如Ser·Gly·Try·Ala·Leu这个五肽由5个氨基酸残基和4个肽键组成，命名为丝氨酰甘氨酰酪氨酰丙氨酰亮氨酸。

    肽广泛存在于动植物组织中，并且其中许多具有特殊生物活性的功能性肽统称为生物活性肽。近年来的研究表明，几乎所有重大生命科学理论——包括免疫防御、生殖控制、肿瘤病变和抗衰防老等——均涉及相关的活性肽，这些理论与临床医学实践密切相关，因此生物活性肽在实际应用中也具有重要价值。

    生物活性肽种类繁多，例如促肾上腺皮质激素为39肽，催产素为九肽，而两种重要的脑啡肽均为五肽。许多抗菌素也是由肽类物质构成的。生长因子则受控于基因，在细胞发育过程中起到调节和控制作用。表皮生长因子含有50个氨基酸残基，神经生长因子则由118个氨基酸组成。

    相关化合物

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— ACTH (6-24) (human) —— C111H175N35O21
    ACTH (6-24) (human)
    —— (4S)-5-[[(2S,3S)-1-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-4-amino-1-[[(2S)-1-[[2-[[(2S)-6-amino-1-[(4S)-5-[[(2S)-1-[(4S)-5-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-6-amino-1-[(2S)-2-[[(2S)-4-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-5-amino-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-5-oxopentanoyl]amino]-3-carboxypropanoyl]amino]-3-methylbutanoyl]amino]-3-(4H-imidazol-4-yl)propanoyl]amino]-4-oxobutanoyl]amino]-3-phenylpropanoyl]oxy-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-4-[[(2S)-2-amino-3-methylbutanoyl]amino]-5-oxopentanoyl]oxy-5-carbamimidamido-1-oxopentan-2-yl]amino]-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-(4H-imidazol-4-yl)propanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-3-hydroxypropanoyl]amino]-4-methylsulfanylbutanoyl]amino]-5-oxopentanoyl]oxy-1-oxohexan-2-yl]amino]-2-oxoethyl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-3-(4H-imidazol-4-yl)-1-oxopropan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-5-oxopentanoic acid 51257-86-4 C175H274N52O48S2
    (4S)-5-[[(2S,3S)-1-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-4-amino-1-[[(2S)-1-[[2-[[(2S)-6-amino-1-[(4S)-5-[[(2S)-1-[(4S)-5-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-6-amino-1-[(2S)-2-[[(2S)-4-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-5-amino-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-5-oxopentanoyl]amino]-3-carboxypropanoyl]amino]-3-methylbutanoyl]amino]-3-(4H-imidazol-4-yl)propanoyl]amino]-4-oxobutanoyl]amino]-3-phenylpropanoyl]oxy-1-oxohexan-2-yl]amino]-1-oxohexan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-4-[[(2S)-2-amino-3-methylbutanoyl]amino]-5-oxopentanoyl]oxy-5-carbamimidamido-1-oxopentan-2-yl]amino]-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-(4H-imidazol-4-yl)propanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-3-hydroxypropanoyl]amino]-4-methylsulfanylbutanoyl]amino]-5-oxopentanoyl]oxy-1-oxohexan-2-yl]amino]-2-oxoethyl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-3-(4H-imidazol-4-yl)-1-oxopropan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-5-oxopentanoic acid
    —— Pediocin ach 120367-03-5 C196H297N61O60S5
    Pediocin ach
    —— Waglerin I (Trimeresurus wagleri venom reduced) 133410-51-2 C112H177N37O26S2
    Waglerin I (Trimeresurus wagleri venom reduced)
    —— Tachyplesin II 125139-69-7 C100H152N34O19S4
    Tachyplesin II
    —— Subtilin 1393-38-0 C148H227N39O38S5
    Subtilin
    —— Vasoactive intestinal octacosapeptide (pig), N-acetyl-8-L-glutamic acid-12-L-lysine-17-L-norleucine-19-L-alanine-25-L-aspartic acid-26-L-leucine-27-L-lysine-28-L-lysine-28a-glycine-28b-glycine-28c-L-threoninamide-, cyclic (25-21)-peptide 159427-08-4 C160H258N46O46
    Vasoactive intestinal octacosapeptide (pig), N-acetyl-8-L-glutamic acid-12-L-lysine-17-L-norleucine-19-L-alanine-25-L-aspartic acid-26-L-leucine-27-L-lysine-28-L-lysine-28a-glycine-28b-glycine-28c-L-threoninamide-, cyclic (25-21)-peptide
    —— (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3S)-2-[[2-[[(2S)-2-[[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-3-carboxypropanoyl]pyrrolidin-2-yl]-hydroxymethylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-5-carbamimidamidopentanoic acid —— C99H159N37O23
    (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3S)-2-[[2-[[(2S)-2-[[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-3-carboxypropanoyl]pyrrolidin-2-yl]-hydroxymethylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-5-carbamimidamidopentanoic acid
    —— Adrenocorticotropin zinc 53468-06-7 C272H422N80O70P2S2Zn3+2
    Adrenocorticotropin zinc
    —— 2-Leu-deltorphin 154722-68-6 C91H128N20O25
    2-Leu-deltorphin
    —— [Trp8]GnRH 55068-87-6 C60H73N15O13
    [Trp8]GnRH
    —— Secapin 58694-50-1 C131H213N37O31S2
    Secapin
    —— (2S)-5-amino-2-[[(2S,3R)-2-[[2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S,3S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-aminopropanoyl]amino]-4-methylpentanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]hexanoyl]amino]-3-hydroxybutanoyl]amino]-4-methylsulfanylbutanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]amino]hexanoyl]amino]-4-methylpentanoyl]amino]acetyl]amino]-3-hydroxybutanoyl]amino]-4-methylsulfanylbutanoyl]amino]propanoyl]amino]-4-methylpentanoyl]amino]-3-(1H-imidazol-4-yl)propanoyl]amino]propanoyl]amino]acetyl]amino]hexanoyl]amino]propanoyl]amino]propanoyl]amino]-4-methylpentanoyl]amino]acetyl]amino]propanoyl]amino]propanoyl]amino]propanoyl]amino]-3-carboxypropanoyl]amino]-3-hydroxybutanoyl]amino]-3-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-5-oxopentanoyl]amino]acetyl]amino]-3-hydroxybutanoyl]amino]-5-oxopentanoic acid —— C152H257N43O44S2
    (2S)-5-amino-2-[[(2S,3R)-2-[[2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S,3S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-aminopropanoyl]amino]-4-methylpentanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]hexanoyl]amino]-3-hydroxybutanoyl]amino]-4-methylsulfanylbutanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]amino]hexanoyl]amino]-4-methylpentanoyl]amino]acetyl]amino]-3-hydroxybutanoyl]amino]-4-methylsulfanylbutanoyl]amino]propanoyl]amino]-4-methylpentanoyl]amino]-3-(1H-imidazol-4-yl)propanoyl]amino]propanoyl]amino]acetyl]amino]hexanoyl]amino]propanoyl]amino]propanoyl]amino]-4-methylpentanoyl]amino]acetyl]amino]propanoyl]amino]propanoyl]amino]propanoyl]amino]-3-carboxypropanoyl]amino]-3-hydroxybutanoyl]amino]-3-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]-5-oxopentanoyl]amino]acetyl]amino]-3-hydroxybutanoyl]amino]-5-oxopentanoic acid
    —— Peptide C20W 123045-86-3 C113H190N38O26
    Peptide C20W
    —— Prepro-trh (178-199) 122018-92-2 C116H176N28O39S
    Prepro-trh (178-199)
    —— Cyclic-(GVCRCICTRGFCRCLCRR) 251442-64-5 C82H137N33O19S6
    Cyclic-(GVCRCICTRGFCRCLCRR)
    —— Human Defensin NP-1 148093-65-6 C150H222N44O38S6
    Human Defensin NP-1
    —— Biotinylcorticotropin 61125-54-0 C152H237N45O33S2
    Biotinylcorticotropin
    —— L-Tyrosine, L-valyl-L-leucylglycyl-L-lysyl-L-leucyl-L-seryl-L-glutaminyl-L-alpha-glutamyl-L-leucyl-L-histidyl-L-lysyl-L-leucyl-L-glutaminyl-L-threonyl- 145937-86-6 C80H133N21O23
    L-Tyrosine, L-valyl-L-leucylglycyl-L-lysyl-L-leucyl-L-seryl-L-glutaminyl-L-alpha-glutamyl-L-leucyl-L-histidyl-L-lysyl-L-leucyl-L-glutaminyl-L-threonyl-
    —— Lkiedsdtyicevedqkee 123380-67-6 C96H152N22O40S
    Lkiedsdtyicevedqkee
    —— H-Val-Val-Cys-Ala-Cys-Arg-Arg-Ala-Leu-Cys-Leu-Pro-Arg-Glu-Arg-Arg-Ala-Gly-Phe-Cys-Arg-Ile-Arg-Gly-Arg-Ile-His-Pro-Leu-Cys-Cys-Arg-Arg-OH 88086-41-3 C161H283N65O36S6
    H-Val-Val-Cys-Ala-Cys-Arg-Arg-Ala-Leu-Cys-Leu-Pro-Arg-Glu-Arg-Arg-Ala-Gly-Phe-Cys-Arg-Ile-Arg-Gly-Arg-Ile-His-Pro-Leu-Cys-Cys-Arg-Arg-OH
    —— magainin 2 —— C114H180N30O29S
    magainin 2
    —— Betabellin 16S 252348-70-2 C156H250N42O43S
    Betabellin 16S
    —— Lipid-associating peptides 91879-73-1 C81H120N18O27
    Lipid-associating peptides
    —— S-Benzyl-CD4 (83-94) peptide 123380-68-7 C69H102N14O26S
    S-Benzyl-CD4 (83-94) peptide
    —— Ece substrate 133752-35-9 C84H117N21O23S
    Ece substrate
    —— Tyicevedqkee 126144-46-5 C62H96N14O26S
    Tyicevedqkee
    —— N(alpha)-Propionyl-1,7-di-ala-19-des-leu-salmon calcitonin 120318-94-7 C142H235N43O48
    N(alpha)-Propionyl-1,7-di-ala-19-des-leu-salmon calcitonin
    —— Sapecin 119938-54-4 C164H272N58O52S6
    Sapecin
    —— Defensin NP-2 (Rabbit reduced) 88086-40-2 C161H282N62O36S6
    Defensin NP-2 (Rabbit reduced)
    —— HIV-2 Pcs cyclic disulfide 119290-15-2 C111H183N19O23S3
    HIV-2 Pcs cyclic disulfide
    —— Chp2 peptide 156409-45-9 C205H322N60O48S6
    Chp2 peptide
    —— (4S)-5-[(2S,3S)-1-[(2S)-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S,3S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-5-[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-2-amino-1-hydroxypropylidene]amino]-1-hydroxyhexylidene]amino]-1-hydroxyhexylidene]amino]-1-hydroxyhexylidene]amino]-3-carboxy-1-hydroxypropylidene]amino]-4-methylpentanoyl]oxy-2-[[(2S)-2-amino-1,4-dihydroxy-4-iminobutylidene]amino]-1-hydroxy-5-oxopentylidene]amino]-3-carboxy-1-hydroxypropylidene]amino]-1-hydroxyethylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-1,3-dihydroxypropylidene]amino]-1,3-dihydroxybutylidene]amino]-3-carboxy-1-hydroxypropylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxyhexylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-4-methylpentanoyl]oxy-3-methyl-1-oxopentan-2-yl]imino-4-[[(2S)-2,6-diamino-1-hydroxyhexylidene]amino]-5-hydroxypentanoic acid —— C142H245N41O44
    (4S)-5-[(2S,3S)-1-[(2S)-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S,3S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-5-[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-2-amino-1-hydroxypropylidene]amino]-1-hydroxyhexylidene]amino]-1-hydroxyhexylidene]amino]-1-hydroxyhexylidene]amino]-3-carboxy-1-hydroxypropylidene]amino]-4-methylpentanoyl]oxy-2-[[(2S)-2-amino-1,4-dihydroxy-4-iminobutylidene]amino]-1-hydroxy-5-oxopentylidene]amino]-3-carboxy-1-hydroxypropylidene]amino]-1-hydroxyethylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-1,3-dihydroxypropylidene]amino]-1,3-dihydroxybutylidene]amino]-3-carboxy-1-hydroxypropylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxyhexylidene]amino]-5-carbamimidamido-1-hydroxypentylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-4-methylpentanoyl]oxy-3-methyl-1-oxopentan-2-yl]imino-4-[[(2S)-2,6-diamino-1-hydroxyhexylidene]amino]-5-hydroxypentanoic acid
    —— Gallinacin 1alpha 156409-55-1 C176H255N49O42S6
    Gallinacin 1alpha
    —— (4S)-4-[[(2S)-6-amino-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S,3S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[(2-amino-1-hydroxyethylidene)amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-1,3-dihydroxypropylidene]amino]-1-hydroxyhexylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-1-hydroxyhexylidene]amino]-4-carboxy-1-hydroxybutylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxyhexylidene]amino]-5-[(2S)-1-[(2S)-1-[(2S)-6-amino-1-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-6-amino-1-[(2S)-1-[(2S)-1-[2-[(2S)-6-amino-1-[(2S)-1-[(2S)-1-[(2S)-1-[2-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-4-carboxy-1-[(2S)-1-[(1S)-1-carboxy-2-methylpropyl]imino-1-hydroxypropan-2-yl]imino-1-hydroxybutan-2-yl]imino-1,3-dihydroxypropan-2-yl]imino-1-hydroxy-3-methylbutan-2-yl]imino-1-hydroxypropan-2-yl]imino-2-hydroxyethyl]imino-1-hydroxy-4-methylpentan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxyhexan-2-yl]imino-2-hydroxyethyl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxyhexan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxyhexan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-5-hydroxypentanoic acid —— C142H242N40O42
    (4S)-4-[[(2S)-6-amino-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S,3S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[(2-amino-1-hydroxyethylidene)amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-1,3-dihydroxypropylidene]amino]-1-hydroxyhexylidene]amino]-1-hydroxy-3-methylpentylidene]amino]-1-hydroxyhexylidene]amino]-4-carboxy-1-hydroxybutylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxyhexylidene]amino]-5-[(2S)-1-[(2S)-1-[(2S)-6-amino-1-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-6-amino-1-[(2S)-1-[(2S)-1-[2-[(2S)-6-amino-1-[(2S)-1-[(2S)-1-[(2S)-1-[2-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-4-carboxy-1-[(2S)-1-[(1S)-1-carboxy-2-methylpropyl]imino-1-hydroxypropan-2-yl]imino-1-hydroxybutan-2-yl]imino-1,3-dihydroxypropan-2-yl]imino-1-hydroxy-3-methylbutan-2-yl]imino-1-hydroxypropan-2-yl]imino-2-hydroxyethyl]imino-1-hydroxy-4-methylpentan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxyhexan-2-yl]imino-2-hydroxyethyl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxyhexan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxyhexan-2-yl]imino-1-hydroxypropan-2-yl]imino-1-hydroxypropan-2-yl]imino-5-hydroxypentanoic acid
    —— Gly-Met-Ala-Ser-Lys-Ala-Gly-Ala-Ile-Ala-Gly-Lys-Ile-Ala-Lys-Val-Ala-Leu-Lys-Ala-Leu-NH2 102068-15-5 C88H162N26O22S
    Gly-Met-Ala-Ser-Lys-Ala-Gly-Ala-Ile-Ala-Gly-Lys-Ile-Ala-Lys-Val-Ala-Leu-Lys-Ala-Leu-NH2
    —— Metallothionein II hexacosapeptide 36-61 86515-73-3 C94H162N30O32S9
    Metallothionein II hexacosapeptide 36-61
    —— Preprotachykinin B (50-79) 148597-04-0 C143H243N37O46
    Preprotachykinin B (50-79)
    —— L-Phenylalanine, L-phenylalanyl-L-methionyl-L-histidyl-L-asparaginyl-L-leucylglycyl-L-lysyl-L-histidyl-L-leucyl-L-seryl-L-seryl-L-methionyl-L-alpha-glutamyl-L-arginyl-L-valyl-L-alpha-glutamyl-L-tryptophyl-L-leucyl-L-arginyl-L-valyl-L-histidyl-L-asparaginyl- 101380-54-5 C156H243N47O40S2
    L-Phenylalanine, L-phenylalanyl-L-methionyl-L-histidyl-L-asparaginyl-L-leucylglycyl-L-lysyl-L-histidyl-L-leucyl-L-seryl-L-seryl-L-methionyl-L-alpha-glutamyl-L-arginyl-L-valyl-L-alpha-glutamyl-L-tryptophyl-L-leucyl-L-arginyl-L-valyl-L-histidyl-L-asparaginyl-
    —— Pthrp (107-139) 137348-10-8 C142H228N42O58
    Pthrp (107-139)
    —— Amyloid beta-protein (17-42) 155178-13-5 C119H194N28O33S
    Amyloid beta-protein (17-42)
    —— Hen egg lysozyme peptide (46-61) 62982-31-4 C72H116N22O29
    Hen egg lysozyme peptide (46-61)
    —— Cysteinyl-glutamyl-asparaginyl-prolyl-serinyl-glutaminyl-phenylalanyl-tyrosyl-glutamyl-aspartyl-leucine 98813-21-9 C58H81N13O22S
    Cysteinyl-glutamyl-asparaginyl-prolyl-serinyl-glutaminyl-phenylalanyl-tyrosyl-glutamyl-aspartyl-leucine
    —— Somatostatin (sheep reduced), 1-de-L-alanine-2-deglycine-, 3-acetate 12 80722-26-5 C73H100N16O18S2
    Somatostatin (sheep reduced), 1-de-L-alanine-2-deglycine-, 3-acetate 12
    —— L-Threonine, L-phenylalanyl-L-leucyl-L-tryptophyl-L-lysyl-L-alpha-aspartyl-L-leucyl-L-glutaminyl-L-arginyl-L-valyl-L-arginylglycyl-L-alpha-aspartyl-L-leucylglycyl-L-alanyl-L-alanyl-L-leucyl-L-alpha-aspartyl-L-seryl-L-tryptophyl-L-isoleucyl- 109796-64-7 C118H182N32O32
    L-Threonine, L-phenylalanyl-L-leucyl-L-tryptophyl-L-lysyl-L-alpha-aspartyl-L-leucyl-L-glutaminyl-L-arginyl-L-valyl-L-arginylglycyl-L-alpha-aspartyl-L-leucylglycyl-L-alanyl-L-alanyl-L-leucyl-L-alpha-aspartyl-L-seryl-L-tryptophyl-L-isoleucyl-
    —— H-Leu-Gly-Pro-Leu-Gln-Phe-Leu-Ser-Arg-Val-Phe-Thr-Asn-Ser-Leu-Val-Phe-Gly-Thr-Ser-Asp-Arg-Val-Tyr-Glu-Lys-Leu-Lys-Asp-Leu-Glu-Glu-Gly-Ile-Leu-Ala-Leu-Met-OH 78809-76-4 C197H316N48O57S
    H-Leu-Gly-Pro-Leu-Gln-Phe-Leu-Ser-Arg-Val-Phe-Thr-Asn-Ser-Leu-Val-Phe-Gly-Thr-Ser-Asp-Arg-Val-Tyr-Glu-Lys-Leu-Lys-Asp-Leu-Glu-Glu-Gly-Ile-Leu-Ala-Leu-Met-OH
    —— 5-Methoxy-8-trp-somatostatin 76689-49-1 C77H106N18O20S2
    5-Methoxy-8-trp-somatostatin
    —— (4S)-5-[[2-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-1,5-dioxopentan-2-yl]carbamoyl]pyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]carbamoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]amino]-4-[[2-[[(2S)-2-aminopropanoyl]amino]acetyl]amino]-5-oxopentanoic acid —— C89H130N24O24
    (4S)-5-[[2-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-1,5-dioxopentan-2-yl]carbamoyl]pyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]carbamoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]amino]-4-[[2-[[(2S)-2-aminopropanoyl]amino]acetyl]amino]-5-oxopentanoic acid
    —— (4S)-5-[(2S)-1-[2-[(2S)-1-[(2S)-1-[(2S)-1-[(2S,3R)-1-[(2S)-2-[N-[(2S)-6-amino-1-[(1S)-1-carboxyethyl]imino-1-hydroxyhexan-2-yl]-C-hydroxycarbonimidoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxobutan-2-yl]imino-1-hydroxy-3-(4-hydroxyphenyl)propan-2-yl]imino-1-hydroxy-3-phenylpropan-2-yl]imino-1-hydroxy-3-phenylpropan-2-yl]imino-2-hydroxyethyl]imino-5-carbamimidamido-1-hydroxypentan-2-yl]imino-4-[[2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-1-hydroxy-3-phenylpropylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxy-3-(1H-imidazol-5-yl)propylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxyethylidene]amino]-1,3-dihydroxypropylidene]amino]-1-hydroxy-3-(1H-imidazol-5-yl)propylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-4-carboxy-1-hydroxybutylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxyethylidene]amino]-5-hydroxypentanoic acid;(4S)-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2R)-2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3S)-2-[(2-amino-1-hydroxyethylidene)amino]-1-hydroxy-3-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-4-carboxy-1-hydroxybutylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1,3-dihydroxypropylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-5-[(2S)-1-[(2S)-1-[(2R)-1-[(1S)-1-carboxy-3-hydroxy-3-iminopropyl]imino-1-hydroxy-3-sulfanylpropan-2-yl]imino-1-hydroxy-3-(4-hydroxyphenyl)propan-2-yl]imino-1,4-dihydroxy-4-iminobutan-2-yl]imino-5-hydroxypentanoic acid —— C253H381N65O74S6
    (4S)-5-[(2S)-1-[2-[(2S)-1-[(2S)-1-[(2S)-1-[(2S,3R)-1-[(2S)-2-[N-[(2S)-6-amino-1-[(1S)-1-carboxyethyl]imino-1-hydroxyhexan-2-yl]-C-hydroxycarbonimidoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxobutan-2-yl]imino-1-hydroxy-3-(4-hydroxyphenyl)propan-2-yl]imino-1-hydroxy-3-phenylpropan-2-yl]imino-1-hydroxy-3-phenylpropan-2-yl]imino-2-hydroxyethyl]imino-5-carbamimidamido-1-hydroxypentan-2-yl]imino-4-[[2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-1-hydroxy-3-phenylpropylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxy-3-(1H-imidazol-5-yl)propylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxyethylidene]amino]-1,3-dihydroxypropylidene]amino]-1-hydroxy-3-(1H-imidazol-5-yl)propylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-4-carboxy-1-hydroxybutylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxyethylidene]amino]-5-hydroxypentanoic acid;(4S)-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2R)-2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3S)-2-[(2-amino-1-hydroxyethylidene)amino]-1-hydroxy-3-methylpentylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-4-carboxy-1-hydroxybutylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1-hydroxypropylidene]amino]-1-hydroxyethylidene]amino]-1-hydroxy-3-methylbutylidene]amino]-1-hydroxy-3-sulfanylpropylidene]amino]-1,3-dihydroxypropylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1,5-dihydroxy-5-iminopentylidene]amino]-1-hydroxy-4-methylpentylidene]amino]-5-[(2S)-1-[(2S)-1-[(2R)-1-[(1S)-1-carboxy-3-hydroxy-3-iminopropyl]imino-1-hydroxy-3-sulfanylpropan-2-yl]imino-1-hydroxy-3-(4-hydroxyphenyl)propan-2-yl]imino-1,4-dihydroxy-4-iminobutan-2-yl]imino-5-hydroxypentanoic acid
    —— Pro-opiomelanocortin joining peptide(79-108) 83296-42-8 C123H195N39O47S
    Pro-opiomelanocortin joining peptide(79-108)