Structure of PDB 5dqr Chain B

Receptor sequence

>5dqrB (length=411) Species: 3702 (Arabidopsis thaliana)

PPGGTYPAKDHCSQCGLCDTYYIAHVKEACAFLGDGMSRIESLEPVVHGR
GRKADSLQDTYFGVHQEQLYARKLKPVEGAQWTGIVTTIAIEMLKSNMVE
AVVCVQSDPEDRLSPRPVLARTPEEVLAARGVKPTLSPNLNTLELIEASG
VKRLLFCGVGCQVQALRSVEQHLNLEKLYVLGTNCVDNGTRDGLDKFLKA
ASKEPETVLHYEFMQDYKVQLKHLDGHIEEVPYFSLPANDLVDVIAPSCY
SCFDYTNALADLVIGYMGVPKYSGLNMTDHPQYITVRNERGKEMLSLVEN
LLEITPTISSGDRRPFVTETVKADDAAKFGQGPAQPAPLFVGNIIAFILN
LVGPKGLEFARYSLDYHTIRNYLYVNRKWGKQRANTHMPSYAKKIVEMYN
KNGQIDKMLSK

3D structure

• PDB: 5dqr Crystal Structure and Catalytic Mechanism of 7-Hydroxymethyl Chlorophyll a Reductase
• Chain: B
• Resolution: 2.7 Å

Enzymatic activity

• Enzyme Commision number: 1.17.7.2: 7-hydroxymethyl chlorophyll a reductase.

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	B	Y56 A58 C62 S63 Q64 C65 L67 C68 V76 C80	Y6 A8 C12 S13 Q14 C15 L17 C18 V26 C30
BS02	SF4	B	V209 C211 C235 V236 N238 C299 C302	V159 C161 C185 V186 N188 C249 C252
BS03	FAD	B	A130 Q131 W132 G134 I135 V136 T137 C154 V155 A179 G181 V182 K183 S187 T233 N234 C235 G315 Y316 M317 Q332	A80 Q81 W82 G84 I85 V86 T87 C104 V105 A129 G131 V132 K133 S137 T183 N184 C185 G265 Y266 M267 Q282

Gene Ontology

Molecular Function

• GO:0003824 catalytic activity
• GO:0016491 oxidoreductase activity
• GO:0046872 metal ion binding
• GO:0051536 iron-sulfur cluster binding
• GO:0090415 7-hydroxymethyl chlorophyll a reductase activity

Biological Process

• GO:0015994 chlorophyll metabolic process
• GO:0033354 chlorophyll cycle

Cellular Component

• GO:0005576 extracellular region
• GO:0009507 chloroplast

External links

• PDB: RCSB:5dqr, PDBe:5dqr, PDBj:5dqr
• PDBsum: 5dqr
• PubMed: 27072131
• UniProt: Q8GS60|HCAR_ARATH 7-hydroxymethyl chlorophyll a reductase, chloroplastic (Gene Name=HCAR)