A1DF0/PRD_002607

peptide PA9

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

A1DF0/PRD_002607 is described in the Biologically Interesting Molecule Reference Dictionary (BIRD).

The representative PDB ID is PDB_000013IU.

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Chemical Details
Formal Charge	0
Atom Count	106
Chiral Atom Count	5
Bond Count	110
Aromatic Bond Count	18

2D diagram of A1DF0

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Chemical Component Summary
Name	peptide PA9
Synonyms	N-{(2S)-2-cyclohexyl-2-[(pyrazine-2-carbonyl)amino]acetyl}-L-phenylalanyl-L-prolyl-L-norvalyl-L-phenylalanine
Systematic Name (OpenEye OEToolkits)	(2~{S})-2-[[(2~{S})-2-[[(2~{S})-1-[(2~{S})-2-[[(2~{S})-2-cyclohexyl-2-(pyrazin-2-ylcarbonylamino)ethanoyl]amino]-3-phenyl-propanoyl]pyrrolidin-2-yl]carbonylamino]pentanoyl]amino]-3-phenyl-propanoic acid
Formula	C₄₁ H₅₁ N₇ O₇
Molecular Weight	753.886
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(Cc1ccccc1)NC(=O)C(NC(=O)c1cnccn1)C1CCCCC1
SMILES	CACTVS	3.385	CCC[CH](NC(=O)[CH]1CCCN1C(=O)[CH](Cc2ccccc2)NC(=O)[CH](NC(=O)c3cnccn3)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(Cc3ccccc3)NC(=O)C(C4CCCCC4)NC(=O)c5cnccn5
Canonical SMILES	CACTVS	3.385	CCC[C@H](NC(=O)[C@@H]1CCCN1C(=O)[C@H](Cc2ccccc2)NC(=O)[C@@H](NC(=O)c3cnccn3)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](Cc3ccccc3)NC(=O)[C@H](C4CCCCC4)NC(=O)c5cnccn5
InChI	InChI	1.06	InChI=1S/C41H51N7O7/c1-2-13-30(36(49)46-32(41(54)55)25-28-16-8-4-9-17-28)44-38(51)34-20-12-23-48(34)40(53)31(24-27-14-6-3-7-15-27)45-39(52)35(29-18-10-5-11-19-29)47-37(50)33-26-42-21-22-43-33/h3-4,6-9,14-17,21-22,26,29-32,34-35H,2,5,10-13,18-20,23-25H2,1H3,(H,44,51)(H,45,52)(H,46,49)(H,47,50)(H,54,55)/t30-,31-,32-,34-,35-/m0/s1
InChIKey	InChI	1.06	OWUJPUTWBSNDCO-SEVYIBDJSA-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.