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9PJ1

Crystal structure of a synthetic Fab (4R) in complex with the ternary assembly of FKBP12, Rapamycin, and the FRB domain of mTOR

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(C)
Peptidyl-prolyl cis-trans isomerase FKBP1Apolymer10811923.61UniProt (P62942)
Pfam (PF00254)
Homo sapiens (human)PPIase FKBP1A,12 kDa FK506-binding protein,12 kDa FKBP,FKBP-12,Calstabin-1,FK506-binding protein 1A,FKBP-1A,Immunophilin FKBP12,Rotamase
2B
(D)
Serine/threonine-protein kinase mTORpolymer9211161.71UniProt (P42345)
Pfam (PF08771)
Homo sapiens (human)FK506-binding protein 12-rapamycin complex-associated protein 1,FKBP12-rapamycin complex-associated protein,Mammalian target of rapamycin,mTOR,Mechanistic target of rapamycin,Rapamycin and FKBP12 target 1,Rapamycin target protein 1,Tyrosine-protein kinase mTOR
3C
(H)
Heavy chainpolymer22723965.71Homo sapiens
4D
(L)
Light chainpolymer21322996.51Homo sapiens
5E
(C)
RAPAMYCIN IMMUNOSUPPRESSANT DRUGnon-polymer914.21Chemie (RAP)
PubChem (5284616)
6F, G, H, I
(C, D, H, L)
waterwater18.0501Chemie (HOH)
Sequence modifications
C: 2 - 108 (UniProt: P62942)
PDBExternal DatabaseDetails
Ser 1-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight70047.6
Non-Polymers*Number of molecules1
Total formula weight914.2
All*Total formula weight70961.7
*Water molecules are not included.

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PDB entries from 2026-06-24

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