The molecule is a polypeptide consisting of 31 amino acid residues in the sequence Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-Glu. It is an endogenous opioid peptide neurotransmitter found in the neurons of both the central and peripheral nervous system and results from processing of the precursor protein proopiomelanocortin (POMC). It has a role as a neurotransmitter.
IUPAC name: (2S)-5-amino-2-[[2-[[(2S)-6-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-6-amino-2-[[(2S,3S)-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S,3R)-2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-[[2-[[2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylsulfanylbutanoyl]amino]-3-hydroxybutanoyl]amino]-3-hydroxypropanoyl]amino]-5-oxopentanoyl]amino]hexanoyl]amino]-3-hydroxypropanoyl]amino]-5-oxopentanoyl]amino]-3-hydroxybutanoyl]pyrrolidine-2-carbonyl]amino]-4-methylpentanoyl]amino]-3-methylbutanoyl]amino]-3-hydroxybutanoyl]amino]-4-methylpentanoyl]amino]-3-phenylpropanoyl]amino]hexanoyl]amino]-4-oxobutanoyl]amino]propanoyl]amino]-3-methylpentanoyl]amino]-3-methylpentanoyl]amino]hexanoyl]amino]-4-oxobutanoyl]amino]propanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]hexanoyl]amino]hexanoyl]amino]acetyl]amino]-5-oxopentanoic acid
SMILES: CC[C@H](C)[C@H](N=C(O)[C@H](C)N=C(O)[C@H](CC(=N)O)N=C(O)[C@H](CCCCN)N=C(O)[C@H](Cc1ccccc1)N=C(O)[C@H](CC(C)C)N=C(O)[C@@H](N=C(O)[C@@H](N=C(O)[C@H](CC(C)C)N=C(O)[C@@H]1CCCN1C(=O)[C@@H](N=C(O)[C@H](CCC(=N)O)N=C(O)[C@H](CO)N=C(O)[C@H](CCCCN)N=C(O)[C@H](CCC(=N)O)N=C(O)[C@H](CO)N=C(O)[C@@H](N=C(O)[C@H](CCSC)N=C(O)[C@H](Cc1ccccc1)N=C(O)CN=C(O)CN=C(O)[C@@H](N)Cc1ccc(O)cc1)[C@@H](C)O)[C@@H](C)O)C(C)C)[C@@H](C)O)C(O)=N[C@H](C(O)=N[C@@H](CCCCN)C(O)=N[C@@H](CC(=N)O)C(O)=N[C@@H](C)C(O)=N[C@@H](Cc1ccc(O)cc1)C(O)=N[C@@H](CCCCN)C(O)=N[C@@H](CCCCN)C(O)=NCC(O)=N[C@@H](CCC(=N)O)C(=O)O)[C@@H](C)CC
SELFIES: [C][C][C@H1][Branch1][C][C][C@H1][Branch3][Ring1][Ring1][C][N][=C][Branch1][C][O][C@H1][Branch1][C][C][N][=C][Branch1][C][O][C@H1][Branch1][#Branch1][C][C][=Branch1][C][=N][O][N][=C][Branch1][C][O][C@H1][Branch1][=Branch1][C][C][C][C][N][N][=C][Branch1][C][O][C@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][=C][Branch1][C][O][C@H1][Branch1][#Branch1][C][C][Branch1][C][C][C][N][=C][Branch1][C][O][C@@H1][Branch2][=N][P][N][=C][Branch1][C][O][C@@H1][Branch2][=N][Ring1][N][=C][Branch1][C][O][C@H1][Branch1][#Branch1][C][C][Branch1][C][C][C][N][=C][Branch1][C][O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C@@H1][Branch2][#Branch2][N][N][=C][Branch1][C][O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=N][O][N][=C][Branch1][C][O][C@H1][Branch1][Ring1][C][O][N][=C][Branch1][C][O][C@H1][Branch1][=Branch1][C][C][C][C][N][N][=C][Branch1][C][O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=N][O][N][=C][Branch1][C][O][C@H1][Branch1][Ring1][C][O][N][=C][Branch1][C][O][C@@H1][Branch2][Branch1][#C][N][=C][Branch1][C][O][C@H1][Branch1][Branch1][C][C][S][C][N][=C][Branch1][C][O][C@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][=C][Branch1][C][O][C][N][=C][Branch1][C][O][C][N][=C][Branch1][C][O][C@@H1][Branch1][C][N][C][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][C@@H1][Branch1][C][C][O][C@@H1][Branch1][C][C][O][C][Branch1][C][C][C][C@@H1][Branch1][C][C][O][C][Branch1][C][O][=N][C@H1][Branch2][Branch2][=N][C][Branch1][C][O][=N][C@@H1][Branch1][=Branch1][C][C][C][C][N][C][Branch1][C][O][=N][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=N][O][C][Branch1][C][O][=N][C@@H1][Branch1][C][C][C][Branch1][C][O][=N][C@@H1][Branch1][=N][C][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][C][Branch1][C][O][=N][C@@H1][Branch1][=Branch1][C][C][C][C][N][C][Branch1][C][O][=N][C@@H1][Branch1][=Branch1][C][C][C][C][N][C][Branch1][C][O][=N][C][C][Branch1][C][O][=N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=N][O][C][=Branch1][C][=O][O][C@@H1][Branch1][C][C][C][C]
InChI: InChI=1S/C158H253N41O44S/c1-17-84(9)126(153(237)184-102(44-29-34-65-163)137(221)188-112(74-120(168)210)142(226)173-86(11)131(215)185-110(73-94-48-52-96(206)53-49-94)146(230)179-99(41-26-31-62-160)135(219)177-98(40-25-30-61-159)134(218)172-78-124(214)175-106(158(242)243)56-59-119(167)209)195-154(238)127(85(10)18-2)194-132(216)87(12)174-143(227)113(75-121(169)211)187-136(220)100(42-27-32-63-161)180-147(231)111(72-92-38-23-20-24-39-92)186-144(228)107(68-81(3)4)190-155(239)129(89(14)203)197-152(236)125(83(7)8)193-148(232)108(69-82(5)6)189-151(235)116-45-35-66-199(116)157(241)130(90(15)204)198-140(224)104(55-58-118(166)208)182-149(233)114(79-200)191-138(222)101(43-28-33-64-162)178-139(223)103(54-57-117(165)207)181-150(234)115(80-201)192-156(240)128(88(13)202)196-141(225)105(60-67-244-16)183-145(229)109(71-91-36-21-19-22-37-91)176-123(213)77-170-122(212)76-171-133(217)97(164)70-93-46-50-95(205)51-47-93/h19-24,36-39,46-53,81-90,97-116,125-130,200-206H,17-18,25-35,40-45,54-80,159-164H2,1-16H3,(H2,165,207)(H2,166,208)(H2,167,209)(H2,168,210)(H2,169,211)(H,170,212)(H,171,217)(H,172,218)(H,173,226)(H,174,227)(H,175,214)(H,176,213)(H,177,219)(H,178,223)(H,179,230)(H,180,231)(H,181,234)(H,182,233)(H,183,229)(H,184,237)(H,185,215)(H,186,228)(H,187,220)(H,188,221)(H,189,235)(H,190,239)(H,191,222)(H,192,240)(H,193,232)(H,194,216)(H,195,238)(H,196,225)(H,197,236)(H,198,224)(H,242,243)/t84-,85-,86-,87-,88+,89+,90+,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,113-,114-,115-,116-,125-,126-,127-,128-,129-,130-/m0/s1
Topological polar surface area: 1440.0
XLogP: -10.6