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3MWF

Crystal structure of Staphylococcus aureus SirA complexed with staphyloferrin B

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Iron-regulated ABC transporter siderophore-binding protein SirApolymer29833333.11UniProt (Q7A869)Staphylococcus aureus subsp. aureus
2B
(A)
FE (III) IONnon-polymer55.81Chemie (FE)
3C
(A)
5-[(2-{[(3S)-5-{[(2S)-2-amino-2-carboxyethyl]amino}-3-carboxy-3-hydroxy-5-oxopentanoyl]amino}ethyl)amino]-2,5-dioxopentanoic acidnon-polymer448.41Chemie (SE8)
4D
(A)
waterwater18.0185Chemie (HOH)
Sequence modifications
A: 37 - 330 (UniProt: Q7A869)
PDBExternal DatabaseDetails
Gly 33-expression tag
Ser 34-expression tag
His 35-expression tag
Met 36-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight33333.1
Non-Polymers*Number of molecules2
Total formula weight504.2
All*Total formula weight33837.3
*Water molecules are not included.

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PDB entries from 2025-07-23

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