1DQ8: Protein

Complex of the catalytic portion of human hmg-CoA reductase with hmg and CoA. Determined by X-ray diffraction at 2.1 Å resolution. Released 8 Mar 2000.

Method
X-ray diffraction
Resolution
2.1 Å
Organism
Homo sapiens
Chains
4
Atoms
12,667
Mol. weight
204.11 kDa
Ligands
COA, MAH, DTT
Released
8 Mar 2000

Explore 1DQ8 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1DQ8 contains 81 α-helices and 66 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 21 helices, 17 β-strands

ElementResiduesLengthSheet
α-helix445-4484
α-helix464-47310
α-helix478-4803
α-helix481-4844
α-helix488-50013
α-helix506-5116
β-strand530-546171
β-strand549-55681
α-helix562-57413
β-strand57911
β-strand580-58782
β-strand588-59033
β-strand593-59533
α-helix599-60911
α-helix612-62312
β-strand630-639103
β-strand642-65093
β-strand65114
β-strand65314
β-strand65415
α-helix657-67418
β-strand679-68243
α-helix695-7006
β-strand703-712102
α-helix714-7196
α-helix725-7317
α-helix732-7398
α-helix740-7423
β-strand748-74922
α-helix753-76311
α-helix768-7703
α-helix771-7744
β-strand777-78482
β-strand790-800112
β-strand80515
α-helix807-8104
α-helix812-8209
α-helix833-85927
Chain B: 21 helices, 17 β-strands
ElementResiduesLengthSheet
α-helix464-4729
α-helix478-4803
α-helix481-4844
α-helix488-50013
α-helix506-5094
α-helix519-5213
β-strand52316
β-strand52716
β-strand530-546171
β-strand549-55681
α-helix562-57514
β-strand57911
β-strand580-58787
β-strand588-59038
β-strand593-59538
α-helix599-60911
α-helix612-62312
β-strand629-639118
β-strand642-651108
β-strand65419
α-helix657-67418
β-strand679-68248
α-helix695-7006
β-strand703-712107
α-helix714-7196
α-helix725-7328
α-helix733-7375
α-helix738-7425
β-strand748-74927
α-helix753-76311
α-helix768-7703
α-helix771-7744
β-strand777-78487
β-strand790-800117
β-strand80519
α-helix807-8104
α-helix812-82110
α-helix833-85927
Chain C: 20 helices, 17 β-strands
ElementResiduesLengthSheet
α-helix466-4727
α-helix478-4803
α-helix481-4844
α-helix488-50013
α-helix508-5114
β-strand523110
β-strand527110
β-strand530-5461711
β-strand549-556811
α-helix562-57514
β-strand579111
β-strand580-587812
β-strand588-590313
β-strand593-595313
α-helix599-61012
α-helix612-62312
β-strand630-6391013
β-strand642-650913
β-strand654114
α-helix657-67418
β-strand679-682413
α-helix695-7006
β-strand703-7121012
α-helix714-7196
α-helix725-7317
α-helix732-7376
α-helix738-7425
β-strand748-749212
α-helix753-76311
α-helix768-7703
α-helix771-7744
β-strand777-784812
β-strand790-8001112
β-strand805114
α-helix807-8104
α-helix812-8209
α-helix833-85927
Chain D: 19 helices, 15 β-strands
ElementResiduesLengthSheet
α-helix459-4613
α-helix464-47310
α-helix481-4844
α-helix488-50013
β-strand530-5461711
β-strand549-556811
α-helix562-57514
β-strand579111
β-strand580-587815
β-strand588-590316
β-strand593-595316
α-helix599-60911
α-helix612-62312
β-strand630-6391016
β-strand642-650916
β-strand654117
α-helix657-67418
β-strand679-682416
α-helix695-7006
β-strand703-7121015
α-helix714-7196
α-helix725-7317
α-helix732-7376
α-helix738-7425
β-strand748-749215
α-helix753-76311
α-helix768-7703
α-helix771-7744
β-strand777-784815
β-strand790-8001115
β-strand805117
α-helix807-8104
α-helix812-8209
α-helix833-85927

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Protein (hmg-CoA reductase)A, B, C, Dprotein467Homo sapiensP04035 (AlphaFold model)
Sequence of entity 1 (A, B, C, D), FASTA
>1DQ8_1 PROTEIN (HMG-COA REDUCTASE) (chains A, B, C, D)
GAMASSVLVTQEPEIELPREPRPNEECLQILGNAEKGAKFLSDAEIIQLVNAKHIPAYKL
ETLIETHERGVSIRRQLLSKKLSEPSSLQYLPYRDYNYSLVMGACCENVIGYMPIPVGVA
GPLCLDEKEFQVPMATTEGCLVASTNRGCRAIGLGGGASSRVLADGMTRGPVVRLPRACD
SAEVKAWLETSEGFAVIKEAFDSTSRFARLQKLHTSIAGRNLYIRFQSRSGDAMGMNMIS
KGTEKALSKLHEYFPEMQILAVSGNYCTDKKPAAINWIEGRGKSVVCEAVIPAKVVREVL
KTTTEAMIEVNINKNLVGSAMAGSIGGYNAHAANIVTAIYIACGQDAAQNVGSSNCITLM
EASGPTNEDLYISCTMPSIEIGTVGGGTNLLPQQACLQMLGVQGACKDNPGENARQLARI
VCGTVMAGELSLMAALAAGHLVKSHMIHNRSKINLQDLQGACTKKTA

Ligands and cofactors

IDNameFormulaCopies
COACoenzyme aC21 H36 N7 O16 P3 S4
MAH3-hydroxy-3-methyl-glutaric acidC6 H10 O54
DTT2,3-dihydroxy-1,4-dithiobutaneC4 H10 O2 S22

Primary citation

Crystal structure of the catalytic portion of human HMG-CoA reductase: insights into regulation of activity and catalysis. Istvan, E.S., Palnitkar, M., Buchanan, S.K. et al. EMBO J (2000) 19:819-830. DOI 10.1093/emboj/19.5.819 · PubMed

Other PDB entries of the same protein (UniProt P04035 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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