A1DFX/PRD_002606

peptide PA1-A

Created:	2026-05-08
Last modified:	2026-05-27

A1DFX/PRD_002606 is described in the Biologically Interesting Molecule Reference Dictionary (BIRD).

The representative PDB ID is PDB_000013IV.

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Chemical Details
Formal Charge	0
Atom Count	109
Chiral Atom Count	5
Bond Count	113
Aromatic Bond Count	12

2D diagram of A1DFX

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Chemical Component Summary
Name	peptide PA1-A
Synonyms	1-[(2S)-2-cyclohexyl-2-({(2S)-2-cyclohexyl-2-[(pyrazine-2-carbonyl)amino]acetyl}amino)acetyl]-L-prolyl-L-norvalyl-L-phenylalanine
Systematic Name (OpenEye OEToolkits)	(2~{S})-2-[[(2~{S})-2-[[(2~{S})-1-[(2~{S})-2-cyclohexyl-2-[[(2~{S})-2-cyclohexyl-2-(pyrazin-2-ylcarbonylamino)ethanoyl]amino]ethanoyl]pyrrolidin-2-yl]carbonylamino]pentanoyl]amino]-3-phenyl-propanoic acid
Formula	C₄₀ H₅₅ N₇ O₇
Molecular Weight	745.907
Type	PEPTIDE-LIKE

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	O=C(NC(CCC)C(=O)NC(Cc1ccccc1)C(=O)O)C1CCCN1C(=O)C(NC(=O)C(NC(=O)c1cnccn1)C1CCCCC1)C1CCCCC1
SMILES	CACTVS	3.385	CCC[CH](NC(=O)[CH]1CCCN1C(=O)[CH](NC(=O)[CH](NC(=O)c2cnccn2)C3CCCCC3)C4CCCCC4)C(=O)N[CH](Cc5ccccc5)C(O)=O
SMILES	OpenEye OEToolkits	3.1.0.0	CCCC(C(=O)NC(Cc1ccccc1)C(=O)O)NC(=O)C2CCCN2C(=O)C(C3CCCCC3)NC(=O)C(C4CCCCC4)NC(=O)c5cnccn5
Canonical SMILES	CACTVS	3.385	CCC[C@H](NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)c2cnccn2)C3CCCCC3)C4CCCCC4)C(=O)N[C@@H](Cc5ccccc5)C(O)=O
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	CCC[C@@H](C(=O)N[C@@H](Cc1ccccc1)C(=O)O)NC(=O)[C@@H]2CCCN2C(=O)[C@H](C3CCCCC3)NC(=O)[C@H](C4CCCCC4)NC(=O)c5cnccn5
InChI	InChI	1.06	InChI=1S/C40H55N7O7/c1-2-13-29(35(48)44-30(40(53)54)24-26-14-6-3-7-15-26)43-37(50)32-20-12-23-47(32)39(52)34(28-18-10-5-11-19-28)46-38(51)33(27-16-8-4-9-17-27)45-36(49)31-25-41-21-22-42-31/h3,6-7,14-15,21-22,25,27-30,32-34H,2,4-5,8-13,16-20,23-24H2,1H3,(H,43,50)(H,44,48)(H,45,49)(H,46,51)(H,53,54)/t29-,30-,32-,33-,34-/m0/s1
InChIKey	InChI	1.06	FLUIZNKENXFZDI-SMYHUWTMSA-N

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.