Structure of PDB 2qla Chain B

Receptor sequence

>2qlaB (length=106) Species: 562 (Escherichia coli)

ADLEDNMETLNDNLKVIEKADNAAQVKDALTKMRAAALDAQKATPPKLED
KSPDSPEMHDFRHGFDILVGQIHDALHLANEGKVKEAQAAAEQLKTTCNA
CHQKYR

3D structure

• PDB: 2qla Controlling protein-protein interactions through metal coordination: assembly of a 16-helix bundle protein.
• Chain: B
• Resolution: 2.9 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	HEM	B	E4 M7 L10 N11 P46 F61 F65 C98 C101 H102 R106	E4 M7 L10 N11 P46 F61 F65 C98 C101 H102 R106
BS02	ZN	B	H73 H77	H73 H77

Gene Ontology

Molecular Function

• GO:0005506 iron ion binding
• GO:0009055 electron transfer activity
• GO:0020037 heme binding
• GO:0046872 metal ion binding

Biological Process

• GO:0022900 electron transport chain

Cellular Component

• GO:0042597 periplasmic space

External links

• PDB: RCSB:2qla, PDBe:2qla, PDBj:2qla
• PDBsum: 2qla
• PubMed: 17929927
• UniProt: P0ABE7|C562_ECOLX Soluble cytochrome b562 (Gene Name=cybC)