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2PPD

Oxidized H145A mutant of AfNiR bound to nitric oxide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C
(A, B, C)
Copper-containing nitrite reductasepolymer34336996.83UniProt (P38501)
Pfam (PF07732)
Pfam (PF00394)
Alcaligenes faecalisCu-NIR
2D, H, L
(A, B, C)
COPPER (I) IONnon-polymer63.53Chemie (CU1)
3E, I, M
(A, B, C)
COPPER (II) IONnon-polymer63.53Chemie (CU)
4F, K
(A, B)
NITRIC OXIDEnon-polymer30.02Chemie (NO)
5G
(A)
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOLnon-polymer122.11Chemie (TRS)
6J
(B)
ACETATE IONnon-polymer59.01Chemie (ACT)
7N, O, P
(A, B, C)
waterwater18.0603Chemie (HOH)
Sequence modifications
A, B, C: -2 - 340 (UniProt: P38501)
PDBExternal DatabaseDetails
Ala 145His 181engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight110990.5
Non-Polymers*Number of molecules10
Total formula weight622.5
All*Total formula weight111612.9
*Water molecules are not included.

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PDB entries from 2025-07-16

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