1HWK

COMPLEX OF THE CATALYTIC PORTION OF HUMAN HMG-COA REDUCTASE WITH ATORVASTATIN

PDB DOI: https://doi.org/10.2210/pdb1HWK/pdb

Classification: OXIDOREDUCTASE
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2001-01-09 Released: 2001-05-11
Deposition Author(s): Istvan, E.S., Deisenhofer, J.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.22 Å
R-Value Free: 0.235
R-Value Work: 0.212

wwPDB Validation 3D Report Full Report

This is version 1.4 of the entry. See complete history.

Literature

Structural mechanism for statin inhibition of HMG-CoA reductase.

Istvan, E.S., Deisenhofer, J.

(2001) Science 292: 1160-1164

PubMed: 11349148 Search on PubMed
DOI: https://doi.org/10.1126/science.1059344
Primary Citation of Related Structures:
1HW8, 1HW9, 1HWI, 1HWJ, 1HWK, 1HWL

PubMed Abstract:
HMG-CoA (3-hydroxy-3-methylglutaryl-coenzyme A) reductase (HMGR) catalyzes the committed step in cholesterol biosynthesis. Statins are HMGR inhibitors with inhibition constant values in the nanomolar range that effectively lower serum cholesterol levels and are widely prescribed in the treatment of hypercholesterolemia. We have determined structures of the catalytic portion of human HMGR complexed with six different statins. The statins occupy a portion of the binding site of HMG-CoA, thus blocking access of this substrate to the active site. Near the carboxyl terminus of HMGR, several catalytically relevant residues are disordered in the enzyme-statin complexes. If these residues were not flexible, they would sterically hinder statin binding.

Organizational Affiliation

Department of Biochemistry, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center at Dallas, TX 75390-9050, USA.

Macromolecule Content

Total Structure Weight: 204.46 kDa
Atom Count: 12,296
Modelled Residue Count: 1,587
Deposited Residue Count: 1,868
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HMG-COA REDUCTASE	A, B, C, D	467	Homo sapiens	Mutation(s): 1 Gene Names: HMGCR EC: 1.1.1.34
UniProt & NIH Common Fund Data Resources
Find proteins for P04035 (Homo sapiens) Explore P04035 Go to UniProtKB: P04035
PHAROS: P04035
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P04035
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
117 Query on 117 Download Ideal Coordinates CCD File SDF format, chain J [auth B] SDF format, chain M [auth D] SDF format, chain H [auth A] SDF format, chain K [auth C] MOL2 format, chain J [auth B] MOL2 format, chain M [auth D] MOL2 format, chain H [auth A] MOL2 format, chain K [auth C]	H [auth A], J [auth B], K [auth C], M [auth D]	7-[2-(4-FLUORO-PHENYL)-5-ISOPROPYL-3-PHENYL-4-PHENYLCARBAMOYL-PYRROL-1-YL]- 3,5-DIHYDROXY-HEPTANOIC ACID C₃₃ H₃₅ F N₂ O₅ XUKUURHRXDUEBC-KAYWLYCHSA-N		Interactions Focus chain H [auth A] Focus chain J [auth B] Focus chain K [auth C] Focus chain M [auth D] Interactions & Density Focus chain H [auth A] Focus chain J [auth B] Focus chain K [auth C] Focus chain M [auth D]
ADP Query on ADP Download Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain I [auth B] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain L [auth D] MOL2 format, chain G [auth A] MOL2 format, chain I [auth B] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain L [auth D]	E [auth A], F [auth A], G [auth A], I [auth B], L [auth D]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain I [auth B] Focus chain L [auth D] Interactions & Density Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain I [auth B] Focus chain L [auth D]

Binding Affinity Annotations
ID	Source	Binding Affinity
117	BindingDB: 1HWK	Ki: 6.2 (nM) from 1 assay(s)
		IC50: min: 3.8, max: 3.21e+4 (nM) from 7 assay(s)
		EC50: 2.5 (nM) from 1 assay(s)
	Binding MOAD: 1HWK	IC50: 8 (nM) from 1 assay(s)