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5KWY

Structure of human NPC1 middle lumenal domain bound to NPC2

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Niemann-Pick C1 proteinpolymer24728234.22UniProt (O15118)
Pfam (PF22314)
Homo sapiens (Human)
2C, D
(C, D)
Epididymal secretory protein E1polymer13314663.82UniProt (P61916)
Pfam (PF02221)
Homo sapiens (Human)Human epididymis-specific protein 1,He1,Niemann-Pick disease type C2 protein
3E, F, H, I
(C, D)
2-acetamido-2-deoxy-beta-D-glucopyranosenon-polymer221.24Chemie (NAG)
4G, J
(C, D)
CHOLEST-5-EN-3-YL HYDROGEN SULFATEnon-polymer466.72Chemie (C3S)
5K, L, M, N
(A, B, C, D)
waterwater18.0105Chemie (HOH)
Sequence modifications
C, D: 20 - 151 (UniProt: P61916)
PDBExternal DatabaseDetails
Ala 152-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight85796.1
Non-Polymers*Number of molecules6
Total formula weight1818.3
All*Total formula weight87614.4
*Water molecules are not included.

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PDB entries from 2025-06-11

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