Structure of PDB 5dqr Chain A

Receptor sequence

>5dqrA (length=414) Species: 3702 (Arabidopsis thaliana)

EDWREKSRPIPPGGTYPAKDHCSQCGLCDTYYIAHVKEACAFLGDGMSRI
ESLEPVVHGRGRKADSLQDTYFGVHQEQLYARKLKPVEGAQWTGIVTTIA
IEMLKSNMVEAVVCVQSDPEDRLSPRPVLARTPEEVLAARGVKPTLSPNL
NTLELIEASGVKRLLFCGVGCQVQALRSVEQHLNLEKLYVLGTNCVDNGT
RDGLDKFLKAASKEPETVLHYEFMQDYKVQLKHLDGHIEEVPYFSLPAND
LVDVIAPSCYSCFDYTNALADLVIGYMGVPKYSGLNMTDHPQYITVRNER
GKEMLSLVENLLEITPTISSGDRRPFVTETVKADDAAQPAPLFVGNIIAF
ILNLVGPKGLEFARYSLDYHTIRNYLYVNRKWGKQRANTHMPSYAKKIVE
MYNKNGQIDKMLSK

3D structure

• PDB: 5dqr Crystal Structure and Catalytic Mechanism of 7-Hydroxymethyl Chlorophyll a Reductase
• Chain: A
• 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	A	A58 C62 S63 C65 L67 C68 C80	A18 C22 S23 C25 L27 C28 C40
BS02	SF4	A	V209 C211 C235 N238 C299 C302	V169 C171 C195 N198 C259 C262
BS03	FAD	A	A130 Q131 W132 G134 I135 V136 T137 C154 V155 A179 G181 V182 K183 S187 N189 T233 N234 C235 Y305 I314 G315 Y316 Q332	A90 Q91 W92 G94 I95 V96 T97 C114 V115 A139 G141 V142 K143 S147 N149 T193 N194 C195 Y265 I274 G275 Y276 Q292

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)