Structure of PDB 4hbf Chain A

Receptor sequence

>4hbfA (length=71) Species: 35554 (Geobacter sulfurreducens)

ADDIVLKAKNGDAKFPHKAHQKAVPDCKKCHEKGPGKIEGFGKEMAHGKG
CKGCHEEMKKGPTKCGECHKK

3D structure

• PDB: 4hbf V13 mutants of PpcA
• Chain: A
• Resolution: 1.9 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	HEC	A	A1 D2 I4 F15 H17 Q21 V24 C27 C30 H31	A1 D2 I4 F15 H17 Q21 V24 C27 C30 H31
BS02	HEC	A	F15 P16 H20 A23 G50 C51 C54 H55 M58 K60 P62	F15 P16 H20 A23 G50 C51 C54 H55 M58 K60 P62
BS03	HEC	A	A8 K9 N10 F41 G42 K43 A46 H47 C51 K52 H55 T63 K64 C65 C68 H69	A8 K9 N10 F41 G42 K43 A46 H47 C51 K52 H55 T63 K64 C65 C68 H69
BS04	DXC	A	L6 K37 I38 F41 M45 K49 G50	L6 K37 I38 F41 M45 K49 G50

Gene Ontology

Molecular Function

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

External links

• PDB: RCSB:4hbf, PDBe:4hbf, PDBj:4hbf
• PDBsum: 4hbf
• UniProt: Q8GGK7