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1XK2

NADPH- and Ascorbate-Supported Heme Oxygenase Reactions are Distinct. Regiospecificity of Heme Cleavage by the R183E Mutant

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Heme oxygenase 1polymer23326870.52UniProt (P09601)
Pfam (PF01126)
Homo sapiens (human)HO-1
2C, D
(A, B)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.52Chemie (HEM)
3E, F
(A, B)
waterwater18.0206Chemie (HOH)
Sequence modifications
A, B: 1 - 233 (UniProt: P09601)
PDBExternal DatabaseDetails
Glu 183Arg 183engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight53741.1
Non-Polymers*Number of molecules2
Total formula weight1233.0
All*Total formula weight54974.0
*Water molecules are not included.

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PDB entries from 2024-11-13

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