Structure of L-Isoleucinamide, D-phenylalanyl-L-histidyl-L-leucyl-L-leucyl-L-arginyl-L-α-glutamyl-L-valyl-L-leucyl-L-α-glutamyl-L-norleucyl-L-alanyl-L-arginyl-L-alanyl-L-α-glutamyl-L-glutaminyl-L-leucyl-L-alanyl-L-glutaminyl-L-α-glutamyl-L-alanyl-L-histidyl-L-lysyl-L-asparaginyl-L-arginyl-L-lysyl-L-leucyl-L-norleucyl-L-α-glutamyl-L-isoleucyl-, cyclic (19→22)-peptide

L-Isoleucinamide, D-phenylalanyl-L-histidyl-L-leucyl-L-leucyl-L-arginyl-L-α-glutamyl-L-valyl-L-leucyl-L-α-glutamyl-L-norleucyl-L-alanyl-L-arginyl-L-alanyl-L-α-glutamyl-L-glutaminyl-L-leucyl-L-alanyl-L-glutaminyl-L-α-glutamyl-L-alanyl-L-histidyl-L-lysyl-L-asparaginyl-L-arginyl-L-lysyl-L-leucyl-L-norleucyl-L-α-glutamyl-L-isoleucyl-, cyclic (19→22)-peptide

(4S)-5-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-5-amino-1-[[(3S,6S,9S,18S)-18-[[(2S)-4-amino-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S,3S)-1-[[(2S,3S)-1-amino-3-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-1-oxohexan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxohexan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-1,4-dioxobutan-2-yl]carbamoyl]-3-(1H-imidazol-4-ylmethyl)-6-methyl-2,5,8,12-tetraoxo-1,4,7,13-tetrazacyclooctadec-9-yl]amino]-1,5-dioxopentan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]-3-(1H-imidazol-4-yl)propanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-4-carboxybutanoyl]amino]-3-methylbutanoyl]amino]-4-methylpentanoyl]amino]-4-carboxybutanoyl]amino]hexanoyl]amino]propanoyl]amino]-5-carbamimidamidopentanoyl]amino]propanoyl]amino]-5-oxopentanoic acid

Cat. No.170809515
CAS170809-51-5

Astressin is a 30-membered homodetic cyclic peptide comprising the sequence D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-Glu-Ala-His-Lys-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2 cyclised by an amide bridge, formed by condensation of the side-chain carboxy group of the Glu residue at position 19 and the side-chain amino group of the Lys residue at position 22. It has a role as a neuroprotective agent and a corticotropin-releasing factor receptor antagonist. It is a polypeptide and a homodetic cyclic peptide.

Source: ChEBI

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Catalog No.170809515
CAS Number170809-51-5
IUPAC Name(4S)-5-[[(2S)-5-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-5-amino-1-[[(3S,6S,9S,18S)-18-[[(2S)-4-amino-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S,3S)-1-[[(2S,3S)-1-amino-3-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-1-oxohexan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxohexan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-1,4-dioxobutan-2-yl]carbamoyl]-3-(1H-imidazol-4-ylmethyl)-6-methyl-2,5,8,12-tetraoxo-1,4,7,13-tetrazacyclooctadec-9-yl]amino]-1,5-dioxopentan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]-3-(1H-imidazol-4-yl)propanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-4-carboxybutanoyl]amino]-3-methylbutanoyl]amino]-4-methylpentanoyl]amino]-4-carboxybutanoyl]amino]hexanoyl]amino]propanoyl]amino]-5-carbamimidamidopentanoyl]amino]propanoyl]amino]-5-oxopentanoic acid
SMILES[C@H](CC1=CN=CN1)(C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H]2C(=O)N[C@@H](C)C(=O)N[C@@H](CC3=CN=CN3)C(=O)N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H]([C@H](CC)C)C(N)=O)=O)[C@H](CC)C)=O)CCC(O)=O)=O)CCCC)=O)CC(C)C)=O)CCCCN)=O)CCCNC(=N)N)=O)CC(N)=O)=O)CCCCNC(=O)CC2)=O)CCC(N)=O)=O)C)=O)CC(C)C)=O)CCC(N)=O)=O)CCC(O)=O)=O)C)=O)CCCNC(=N)N)=O)C)=O)CCCC)=O)CCC(O)=O)=O)CC(C)C)=O)C(C)C)=O)CCC(O)=O)=O)CCCNC(=N)N)=O)CC(C)C)=O)CC(C)C)=O)NC([C@@H](CC4=CC=CC=C4)N)=O

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