Structure of PDB 3aer Chain C

Receptor sequence

>3aerC (length=414) Species: 1061 (Rhodobacter capsulatus)

TFGCTDSPVRRERGQKAVFCGLTSIVWLHRKMQDAFFLVVGSRTCAHLLQ
AAAGVMIFAEPRFGTAVLEEQDLAGLADAHKELDREVAKLLERRPDIRQL
FLVGSCPSEVLKLDLDRAAERLSGLHAPHVRVYSYTGSGLDTTFTQGEDT
CLAAMVPTLDTTEAAELIVVGALPDVVEDQCLSLLTQLGVGPVRMLPARR
SDIEPAVGPNTRFILAQPFLGETTGALERRGAKRIAAPFPFGEEGTTLWL
KAVADAYGVSAEKFEAVTAAPRARAKKAIAAHLETLTGKSLFMFPDSQLE
IPLARFLARECGMKTTEIATPFLHKAIMAPDLALLPSNTALTEGQDLEAQ
LDRHEAINPDLTVCGLGLANPLEAKGHATKWAIELVFTPVHFYEQAGDLA
GLFSRPLRRRALLN

3D structure

• PDB: 3aer X-ray crystal structure of the light-independent protochlorophyllide reductase
• Chain: C
• Resolution: 2.8 Å

Enzymatic activity

• Enzyme Commision number: 1.3.7.7: ferredoxin:protochlorophyllide reductase (ATP-dependent).

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	SF4	C	C26 L28 T50 C51 S111 C112 P113 G145	C20 L22 T44 C45 S105 C106 P107 G139

Gene Ontology

Molecular Function

• GO:0005515 protein binding
• GO:0005524 ATP binding
• GO:0016491 oxidoreductase activity
• GO:0016636 oxidoreductase activity, acting on the CH-CH group of donors, iron-sulfur protein as acceptor
• GO:0016730 oxidoreductase activity, acting on iron-sulfur proteins as donors
• GO:0046872 metal ion binding
• GO:0051539 4 iron, 4 sulfur cluster binding

Biological Process

• GO:0015979 photosynthesis
• GO:0015995 chlorophyll biosynthetic process
• GO:0019685 photosynthesis, dark reaction
• GO:0030494 bacteriochlorophyll biosynthetic process
• GO:0036070 light-independent bacteriochlorophyll biosynthetic process

External links

• PDB: RCSB:3aer, PDBe:3aer, PDBj:3aer
• PDBsum: 3aer
• PubMed: 20400946
• UniProt: P26164|BCHN_RHOCB Light-independent protochlorophyllide reductase subunit N (Gene Name=bchN)