Structure of PDB 1wpg Chain B Binding Site BS03

Receptor Information

>1wpg Chain B (length=994) Species: 9986 (Oryctolagus cuniculus)

MEAAHSKSTEECLAYFGVSETTGLTPDQVKRHLEKYGHNELPAEEGKSLW
ELVIEQFEDLLVRILLLAACISFVLAWFEEGEETITAFVEPFVILLILIA
NAIVGVWQERNAENAIEALKEYEPEMGKVYRADRKSVQRIKARDIVPGDI
VEVAVGDKVPADIRILSIKSTTLRVDQSILTGESVSVIKHTEPVPDPRAV
NQDKKNMLFSGTNIAAGKALGIVATTGVSTEIGKIRDQMAATEQDKTPLQ
QKLDEFGEQLSKVISLICVAVWLINIGHFNDPVHGGSWIRGAIYYFKIAV
ALAVAAIPEGLPAVITTCLALGTRRMAKKNAIVRSLPSVETLGCTSVICS
DKTGTLTTNQMSVCKMFIIDKVDGDFCSLNEFSITGSTYAPEGEVLKNDK
PIRSGQFDGLVELATICALCNDSSLDFNETKGVYEKVGEATETALTTLVE
KMNVFNTEVRNLSKVERANACNSVIRQLMKKEFTLEFSRDRKSMSVYCSP
AKSSRAAVGNKMFVKGAPEGVIDRCNYVRVGTTRVPMTGPVKEKILSVIK
EWGTGRDTLRCLALATRDTPPKREEMVLDDSSRFMEYETDLTFVGVVGML
DPPRKEVMGSIQLCRDAGIRVIMITGDNKGTAIAICRRIGIFGENEEVAD
RAYTGREFDDLPLAEQREACRRACCFARVEPSHKSKIVEYLQSYDEITAM
TGDGVNDAPALKKAEIGIAMGSGTAVAKTASEMVLADDNFSTIVAAVEEG
RAIYNNMKQFIRYLISSNVGEVVCIFLTAALGLPEALIPVQLLWVNLVTD
GLPATALGFNPPDLDIMDRPPRSPKEPLISGWLFFRYMAIGGYVGAATVG
AAAWWFMYAEDGPGVTYHQLTHFMQCTEDHPHFEGLDCEIFEAPEPMTMA
LSVLVTIEMCNALNSLSENQSLMRMPPWVNIWLLGSICLSMSLHFLILYV
DPLPMIFKLKALDLTQWLMVLKISLPVIGLDEILKFIARNYLEG

Ligand information

• Ligand ID: ADP
• InChI: InChI=1S/C10H15N5O10P2/c11-8-5-9(13-2-12-8)15(3-14-5)10-7(17)6(16)4(24-10)1-23-27(21,22)25-26(18,19)20/h2-4,6-7,10,16-17H,1H2,(H,21,22)(H2,11,12,13)(H2,18,19,20)/t4-,6-,7-,10-/m1/s1
• InChIKey: XTWYTFMLZFPYCI-KQYNXXCUSA-N
• SMILES:
  OpenEye OEToolkits 1.5.0: c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O)(O)OP(=O)(O)O)O)O)N
  CACTVS 3.341: Nc1ncnc2n(cnc12)[CH]3O[CH](CO[P](O)(=O)O[P](O)(O)=O)[CH](O)[CH]3O
  ACDLabs 10.04: O=P(O)(O)OP(=O)(O)OCC3OC(n2cnc1c(ncnc12)N)C(O)C3O
  CACTVS 3.341: Nc1ncnc2n(cnc12)[C@@H]3O[C@H](CO[P@@](O)(=O)O[P](O)(O)=O)[C@@H](O)[C@H]3O
  OpenEye OEToolkits 1.5.0: c1nc(c2c(n1)n(cn2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)O)O)O)N
• Formula: C10 H15 N5 O10 P2
• Name: ADENOSINE-5'-DIPHOSPHATE
• ChEMBL: CHEMBL14830
• DrugBank: DB16833
• ZINC: ZINC000012360703
• PDB chain: 1wpg Chain B Residue 1102

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1wpg Lumenal gating mechanism revealed in calcium pump crystal structures with phosphate analogues
• Resolution: 2.3 Å
• Binding residue (original residue number in PDB): F487 M494 K515
• Binding residue (residue number reindexed from 1): F487 M494 K515
• Annotation score: 5

Enzymatic activity

• Catalytic site (original residue number in PDB): D351 D703 D707
• Catalytic site (residue number reindexed from 1): D351 D703 D707
• Enzyme Commision number: 7.2.2.10: P-type Ca(2+) transporter.

Gene Ontology

Molecular Function

• GO:0000166 nucleotide binding
• GO:0005215 transporter activity
• GO:0005388 P-type calcium transporter activity
• GO:0005509 calcium ion binding
• GO:0005524 ATP binding
• GO:0016887 ATP hydrolysis activity
• GO:0046872 metal ion binding

Biological Process

• GO:0006816 calcium ion transport
• GO:0006874 intracellular calcium ion homeostasis
• GO:0031448 positive regulation of fast-twitch skeletal muscle fiber contraction
• GO:0070588 calcium ion transmembrane transport
• GO:0106134 positive regulation of cardiac muscle cell contraction
• GO:1901896 positive regulation of ATPase-coupled calcium transmembrane transporter activity
• GO:1902082 positive regulation of calcium ion import into sarcoplasmic reticulum
• GO:1990036 calcium ion import into sarcoplasmic reticulum

Cellular Component

• GO:0016020 membrane
• GO:0016529 sarcoplasmic reticulum
• GO:0033017 sarcoplasmic reticulum membrane

External links

• PDB: RCSB:1wpg, PDBe:1wpg, PDBj:1wpg
• PDBsum: 1wpg
• PubMed: 15448704
• UniProt: P04191|AT2A1_RABIT Sarcoplasmic/endoplasmic reticulum calcium ATPase 1 (Gene Name=ATP2A1)