SMTL ID : 3mom.1 (1 other biounit)

Structure of holo HasAp H32A mutant complexed with imidazole from Pseudomonas aeruginosa to 2.25A Resolution

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.25 Å

Oligo State

homo-dimer

Ligands

3 x IMD: IMIDAZOLE(Non-covalent)

IMD.1: 5 residues within 4Å: Chain A: V.38, N.42, T.43, M.141 Ligands: HEM.2 No protein-ligand interaction detected (PLIP) IMD.3: 5 residues within 4Å: Chain B: V.38, N.42, T.43, M.141 Ligands: HEM.5 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:N.42 IMD.4: 6 residues within 4Å: Chain B: Y.11, Y.19, D.22, W.23, Y.26, E.113 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:D.22

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

HEM.2: 15 residues within 4Å: Chain A: V.38, T.43, F.46, P.50, Y.56, Y.75, L.77, H.83, L.85, R.129, H.134, V.137, Y.138, M.141 Ligands: IMD.1 19 PLIP interactions: 19 interactions with chain A, Hydrophobic interactions: A:V.38, A:V.38, A:T.43, A:F.46, A:F.46, A:Y.56, A:Y.75, A:Y.75, A:L.77, A:H.83, A:L.85, A:L.85, A:V.137, A:Y.138, A:Y.138, A:Y.138 pi-Stacking: A:Y.75 pi-Cation interactions: A:H.83 Metal complexes: A:Y.75 HEM.5: 15 residues within 4Å: Chain A: P.50 Chain B: V.38, T.43, F.46, Y.56, Y.75, L.77, H.83, L.85, R.129, H.134, V.137, Y.138, M.141 Ligands: IMD.3 18 PLIP interactions: 1 interactions with chain A, 17 interactions with chain B, Hydrophobic interactions: A:P.50, B:V.38, B:V.38, B:T.43, B:F.46, B:Y.75, B:Y.75, B:L.77, B:H.83, B:L.85, B:L.85, B:V.137, B:Y.138, B:Y.138 Salt bridges: B:R.129 pi-Stacking: B:Y.75 pi-Cation interactions: B:H.83 Metal complexes: B:Y.75

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Jepkorir, G. et al., Structural, NMR Spectroscopic, and Computational Investigation of Hemin Loading in the Hemophore HasAp from Pseudomonas aeruginosa. J.Am.Chem.Soc. (2010)

Release Date

2010-07-28

Peptides

Heme acquisition protein HasAp: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Heme acquisition protein HasAp

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