SMTL ID : 9s3p.1

Human carboxyhemoglobin bound to Staphylococcus aureus IsdH-N2N3 - 3IsdH(alpha2beta):Hbtet complex

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-2-2-3-mer

Ligands

4 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.1: 18 residues within 4Å: Chain A: Y.41, F.42, H.44, F.45, H.57, K.60, V.61, A.64, L.65, L.82, H.86, L.90, V.92, N.96, F.97, L.100, V.131, L.135 19 PLIP interactions: 19 interactions with chain A, Hydrophobic interactions: A:Y.41, A:F.42, A:F.42, A:V.61, A:V.61, A:A.64, A:L.65, A:L.82, A:L.82, A:L.90, A:V.92, A:L.100, A:L.100, A:V.131, A:L.135 Salt bridges: A:H.44, A:K.60 pi-Stacking: A:H.57 Metal complexes: A:H.86 HEM.2: 19 residues within 4Å: Chain B: T.37, F.40, F.41, H.62, K.65, V.66, A.69, F.70, F.84, L.87, L.90, H.91, L.95, N.101, F.102, L.105, L.140 Chain F: Y.318, Y.322 16 PLIP interactions: 15 interactions with chain B, 1 interactions with chain F, Hydrophobic interactions: B:T.37, B:F.40, B:F.40, B:F.41, B:F.41, B:V.66, B:F.84, B:L.87, B:L.90, B:L.95, B:F.102, B:L.105, B:L.140 pi-Stacking: B:H.62 Metal complexes: B:H.91 Hydrogen bonds: F:Y.318 HEM.3: 19 residues within 4Å: Chain C: Y.41, F.42, H.44, F.45, H.57, K.60, V.61, A.64, L.65, L.82, L.85, H.86, L.90, V.92, N.96, F.97, L.100, V.131, L.135 21 PLIP interactions: 21 interactions with chain C, Hydrophobic interactions: C:Y.41, C:F.42, C:F.42, C:F.42, C:K.60, C:V.61, C:V.61, C:L.65, C:L.82, C:L.85, C:L.90, C:V.92, C:F.97, C:F.97, C:L.100, C:L.100, C:V.131, C:L.135 Salt bridges: C:H.44 pi-Stacking: C:H.57 Metal complexes: C:H.86 HEM.4: 15 residues within 4Å: Chain D: T.37, F.40, F.41, H.62, K.65, V.66, A.69, L.87, H.91, K.94, L.95, N.101, F.102, L.105, L.140 18 PLIP interactions: 18 interactions with chain D, Hydrophobic interactions: D:T.37, D:F.40, D:F.40, D:F.41, D:F.41, D:F.41, D:V.66, D:A.69, D:L.87, D:L.95, D:N.101, D:F.102, D:F.102, D:L.105, D:L.140 Salt bridges: D:K.65 pi-Stacking: D:H.62 Metal complexes: D:H.91

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Comani, V.B. et al., Hemoglobin receptor redundancy in Staphylococcus aureus: molecular flexibility as a determinant of divergent hemophore activity. J Struct Biol X (2025)

Release Date

2025-11-12

Peptides

Hemoglobin subunit alpha: AC
Hemoglobin subunit beta: BD
Iron-regulated surface determinant protein H: EFG

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
C

B
B

D
D

E
E

F
F

G
G

Hemoglobin subunit alpha

Hemoglobin subunit beta

Iron-regulated surface determinant protein H

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