Structure of PDB 1wr5 Chain A

Receptor sequence

>1wr5A (length=108) Species: 883 (Nitratidesulfovibrio vulgaris str. 'Miyazaki F')

AAPKAPADGLKMDKTKQPVVFNHSTHKAVKCGDCHHPVNGKKDYQKCATA
GCHDNMDKKDKSAKGYYHAMHDKGTKFKSCVGCHLETAGADAAKKKELTG
CKGSKCHS

3D structure

• PDB: 1wr5 Role of the aromatic ring of Tyr43 in tetraheme cytochrome c(3) from Desulfovibrio vulgaris Miyazaki F.
• Chain: A
• Resolution: 1.4 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	HEC	A	M11 D12 K13 T14 Q16 V18 Y65 Y66 H70 V80 H83 L97 T98 G99 C100 C105 H106	M12 D13 K14 T15 Q17 V19 Y66 Y67 H71 V81 H84 L98 T99 G100 C101 C106 H107
BS02	HEC	A	C33 H35 D42 Q44 C46 C51 H52 H67 T74 K75 F76	C34 H36 D43 Q45 C47 C52 H53 H68 T75 K76 F77
BS03	HEC	A	P2 K3 P5 L9 M11 F20 H22 V28 C30 C33 H34 Y43 K45 C46	P3 K4 P6 L10 M12 F21 H23 V29 C31 C34 H35 Y44 K46 C47
BS04	HEC	A	F20 N21 T24 H25 V28 C79 C82 H83 K93 K104	F21 N22 T25 H26 V29 C80 C83 H84 K94 K105

Gene Ontology

Molecular Function

• GO:0009055 electron transfer activity
• GO:0020037 heme binding

External links

• PDB: RCSB:1wr5, PDBe:1wr5, PDBj:1wr5
• PDBsum: 1wr5
• PubMed: 14581238
• UniProt: P00132|CYC3_NITV9 Cytochrome c3 (Gene Name=DvMF_2499)