Structure of PDB 1dqa Chain C

Receptor sequence

>1dqaC (length=404) Species: 9606 (Homo sapiens) [Search protein sequence]

IQLVNAKHIPAYKLETLIETHERGVSIRRQLLSKKLSEPSSLQYLPYRDY
NYSLVMGACCENVIGYMPIPVGVAGPLCLDEKEFQVPMATTEGCLVASTN
RGCRAIGLGGGASSRVLADGMTRGPVVRLPRACDSAEVKAWLETSEGFAV
IKEAFDSTSRFARLQKLHTSIAGRNLYIRFQSRSGDAMGMNMISKGTEKA
LSKLHEYFPEMQILAVSGNYCTDKKPAAINWIEGRGKSVVCEAVIPAKVV
REVLKTTTEAMIEVNINKNLVGSAMAGSIGGYNAHAANIVTAIYIACGQD
AAQNVGSSNCITLMEASGPTNEDLYISCTMPSIEIGTVGGGTNLLPQQAC
LQMLGVQGACKDNPGENARQLARIVCGTVMAGELSLMAALAAGHLVKSHM
IHNR

3D structure

PDB

1dqa Crystal structure of the catalytic portion of human HMG-CoA reductase: insights into regulation of activity and catalysis.

Chain

Resolution

2.0 Å

3D
structure

Catalytic site residues are labeled in the structure
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Enzymatic activity

Catalytic site (original residue number in PDB)	E559 K691 D767 H866
Catalytic site (residue number reindexed from 1)	E92 K224 D300 H399
Enzyme Commision number	1.1.1.34: hydroxymethylglutaryl-CoA reductase (NADPH).

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	COA	C	E559 L562 A564 S565 N567 R568 K722 H752 L853 S865 H866 H869	E92 L95 A97 S98 N100 R101 K255 H285 L386 S398 H399 H402
BS02	NAP	C	R590 S626 R627 F628 G652 D653 A654 M655 G656 M657 N658 M659 D690 K691 D767 G807	R123 S159 R160 F161 G185 D186 A187 M188 G189 M190 N191 M192 D223 K224 D300 G340
BS03	MAH	C	R590 S684 D690 K692	R123 S217 D223 K225	BindingDB: Ki=23.5nM,IC50=4000nM
BS04	MAH	C	E559 K735 A751 N755	E92 K268 A284 N288	BindingDB: Ki=23.5nM,IC50=4000nM
BS05	NAP	C	E559 H866 N870 R871	E92 H399 N403 R404

Gene Ontology

	Molecular Function
GO:0004420	hydroxymethylglutaryl-CoA reductase (NADPH) activity
GO:0016616	oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor
GO:0050661	NADP binding

	Biological Process
GO:0008299	isoprenoid biosynthetic process
GO:0015936	coenzyme A metabolic process

	Cellular Component
GO:0005789	endoplasmic reticulum membrane

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Molecular Function

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Biological Process

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Cellular Component

External links

PDB	RCSB:1dqa, PDBe:1dqa, PDBj:1dqa
PDBsum	1dqa
PubMed	10698924
UniProt	P04035\|HMDH_HUMAN 3-hydroxy-3-methylglutaryl-coenzyme A reductase (Gene Name=HMGCR)

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