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5A3R

Crystal structure of the (SR) Calcium ATPase E2.BeF3- complex bound to TNP-AMPPCP

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
SARCOPLASMIC/ENDOPLASMIC RETICULUM CALCIUM ATPASE 1polymer994109667.61UniProt (P04191)
Pfam (PF00690)
Pfam (PF00122)
Pfam (PF13246)
Pfam (PF00702)
Pfam (PF00689)
ORYCTOLAGUS CUNICULUS (RABBIT)SERCA1, SR CA(2+)-ATPASE 1, CALCIUM PUMP 1, CALCIUM-TRANSPORTING ATPASE SARCOPLASMIC RETICULUM TYPE, FAST TWITCH SKELETAL MUSCLE ISOFORM, ENDOPLASMIC RETICULUM CLASS 1/2 CA(2+) ATPASE, SARCOP SARCOPLASMIC RETICULUM CALCIUM ATPASE 1
2B
(A)
Spiro(2,4,6-trinitrobenzene[1,2a]-O2',O3'-methylene-adenosine (beta,gamma-methylene)triphosphatenon-polymer716.31Chemie (DL5)
3C
(A)
POTASSIUM IONnon-polymer39.11Chemie (K)
4D, E, F
(A)
MAGNESIUM IONnon-polymer24.33Chemie (MG)
5G
(A)
waterwater18.07Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight109667.6
Non-Polymers*Number of molecules5
Total formula weight828.3
All*Total formula weight110495.9
*Water molecules are not included.

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PDB entries from 2025-07-23

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