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1NSI

HUMAN INDUCIBLE NITRIC OXIDE SYNTHASE, ZN-BOUND, L-ARG COMPLEX

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D
(A, B, C, D)
PROTEIN (NITRIC OXIDE SYNTHASE)polymer43149705.54UniProt (P35228)
Pfam (PF02898)
Homo sapiens (human)INOS
2AA, E, F, G, M...
(D, A, B, C)
SULFATE IONnon-polymer96.19Chemie (SO4)
3H, U
(A, C)
ZINC IONnon-polymer65.42Chemie (ZN)
4BA, I, O, V
(D, A, B, C)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.54Chemie (HEM)
5CA, J, P, W
(D, A, B, C)
5,6,7,8-TETRAHYDROBIOPTERINnon-polymer241.24Chemie (H4B)
6DA, K, Q, X
(D, A, B, C)
ARGININEnon-polymer175.24Chemie (ARG)
7EA, L, R, Y
(D, A, B, C)
GLYCEROLnon-polymer92.14Chemie (GOL)
8FA, GA, HA, IA
(A, B, C, D)
waterwater18.0295Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight198822.1
Non-Polymers*Number of molecules27
Total formula weight5495.5
All*Total formula weight204317.7
*Water molecules are not included.

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PDB entries from 2025-12-24

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