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1SY2

1.0 A Crystal Structure of D129A/L130A Mutant of Nitrophorin 4

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Nitrophorin 4polymer18420206.61UniProt (Q94734)
Pfam (PF02087)
Rhodnius prolixusNP4
2B
(A)
AMMONIUM IONnon-polymer18.01Chemie (NH4)
3C
(A)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.51Chemie (HEM)
4D
(A)
waterwater18.0258Chemie (HOH)
Sequence modifications
A: 1 - 184 (UniProt: Q94734)
PDBExternal DatabaseDetails
Ala 129Asp 150engineered mutation
Ala 130Leu 151engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight20206.6
Non-Polymers*Number of molecules2
Total formula weight634.5
All*Total formula weight20841.1
*Water molecules are not included.

246031

PDB entries from 2025-12-10

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