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9KP4

Crystal structure of human CASTOR1 in apo form

This is a non-PDB format compatible entry.
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D
(A, B, C, D)
Maltose/maltodextrin-binding periplasmic protein,Cytosolic arginine sensor for mTORC1 subunit 1polymer70476953.24UniProt (P0AEX9)
UniProt (Q8WTX7)
Pfam (PF01547)
Pfam (PF18700)
Pfam (PF13840)
Pfam (PF21389)
Escherichia coli (strain K12)MMBP,Maltodextrin-binding protein,Maltose-binding protein,MBP,Cellular arginine sensor for mTORC1 protein 1,GATS-like protein 3
2E, F, G, H
(I, G, H, J)
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranosebranched342.34In PDB
BIRD (PRD_900001)
GlyTouCan (G07411ON)
3I, J, L, N
(A, C, D)
AMMONIUM IONnon-polymer18.04Chemie (NH4)
PubChem (223)
4K, M, O, P, Q
(B, C, D)
ACETIC ACIDnon-polymer60.15Chemie (ACY)
Sequence modifications
A, B, C, D: -373 - -8 (UniProt: P0AEX9)
PDBExternal DatabaseDetails
Met -374-initiating methionine
Ala -292Asp 108conflict
Ala -291Lys 109conflict
Ala -202Glu 198conflict
Ala -201Asn 199conflict
Ala -135Lys 265conflict
Ala -15Glu 385conflict
Ala -12Lys 388conflict
Ala -11Asp 389conflict
Asn -7-linker
Ala -6-linker
Val -5-linker
Asp -4-linker
Ser -3-linker
Ala -2-linker
Ala -1-linker
Ala 0-linker
A, B, C, D: 1 - 329 (UniProt: Q8WTX7)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight307812.9
BranchedNumber of molecules4
Total formula weight1369.2
Non-Polymers*Number of molecules9
Total formula weight372.4
All*Total formula weight309554.5
*Water molecules are not included.

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PDB entries from 2026-04-01

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