Structure of PDB 3foo Chain J

Receptor sequence

>3fooJ (length=106) Species: 562 (Escherichia coli)

ADLEDNMETLNDNLKVIEKADNAAQVKDALTKMRAAALDAQKATPPKLED
KSPDSPEMCDFAAGFHILVGQIDDALHLANEGKVKEAQAAAEQLKTTCNA
CHQKYR

3D structure

• PDB: 3foo A superprotein triangle driven by nickel(II) coordination: exploiting non-natural metal ligands in protein self-assembly
• Chain: J
• Resolution: 2.4 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	HEM	J	E4 M7 N11 P46 F61 F65 C98 C101 H102 R106	E4 M7 N11 P46 F61 F65 C98 C101 H102 R106
BS02	PXX	J	Q41 K42 P53 M58 C59	Q41 K42 P53 M58 C59
BS03	PXX	J	D74 H77	D74 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:3foo, PDBe:3foo, PDBj:3foo
• PDBsum: 3foo
• PubMed: 19527025
• UniProt: P0ABE7|C562_ECOLX Soluble cytochrome b562 (Gene Name=cybC)