PDB Entry (1kou)
PDB ID: 1kou Resolution: 1.16 Å Exp. Method: X-RAY DIFFRACTION
PMID: 11914481 DOI: 10.1107/S0907444902001257
Protein
Protein Name: Photoactive yellow protein
Uniprot ID/ACC: P16113 (PYP_HALHA) Organism: Halorhodospira halophila (Ectothiorhodospira halophila)
Gene Symbol: pyp Gene ID: -
Protein Class: SIGNALING PROTEIN
Ligand
Ligand Name:   CAFFEIC ACID
Canonical SMILES:   OC(=O)\C=C\c1ccc(O)c(O)c1
Standard InChI:   InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2+
HET Code:   DHC PubChem:   689043
DrugBank:   DB01880 ChEMBL:   CHEMBL145
Molecular Formula:   C9H8O4 Mol. Weight:   180.04225 logP:   1.1956
HBD:   3 HBA:   3
#Rotatable Bonds:   2 TPSA:   77.76
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Acyl Substitution CYS 69 A 37.46 11.43 Carboxylic Acid
Binding Affinity
-