SMTL ID : 1jwn.2 (1 other biounit)

Crystal Structure of Scapharca inaequivalvis HbI, I114F Mutant Ligated to Carbon Monoxide.

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 20 residues within 4Å: Chain A: T.47, Y.50, F.51, R.53, H.69, L.73, A.76, L.77, F.97, N.100, H.101, R.104, I.106, E.110, F.111, F.114 Chain B: K.96, N.100 Ligands: CMO.2, HEM.3 24 PLIP interactions: 21 interactions with chain A, 3 interactions with chain B, Hydrophobic interactions: A:Y.50, A:Y.50, A:F.51, A:F.51, A:F.51, A:L.73, A:A.76, A:L.77, A:F.97, A:I.106, A:F.111, A:F.111, A:F.114 Hydrogen bonds: A:N.100, B:N.100 Water bridges: A:R.53, A:R.104 Salt bridges: A:R.53, A:R.104, B:K.96, B:K.96 pi-Stacking: A:H.69 pi-Cation interactions: A:H.101 Metal complexes: A:H.101 HEM.3: 20 residues within 4Å: Chain A: K.96, N.100 Chain B: Y.50, F.51, R.53, L.54, H.69, L.73, A.76, L.77, F.97, N.100, H.101, R.104, I.106, E.110, F.111, F.114 Ligands: HEM.1, CMO.4 20 PLIP interactions: 17 interactions with chain B, 3 interactions with chain A, Hydrophobic interactions: B:Y.50, B:F.51, B:F.51, B:L.73, B:A.76, B:L.77, B:F.97, B:F.97, B:I.106, B:F.111, B:F.111, B:F.111, B:F.114 Hydrogen bonds: B:N.100, A:N.100 Salt bridges: B:R.53, B:R.104, A:K.96, A:K.96 Metal complexes: B:H.101

2 x CMO: CARBON MONOXIDE(Non-functional Binders)

CMO.2: 6 residues within 4Å: Chain A: M.37, F.51, H.69, L.73, H.101 Ligands: HEM.1 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:H.69 CMO.4: 6 residues within 4Å: Chain B: M.37, F.51, H.69, L.73, H.101 Ligands: HEM.3 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:H.69

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Knapp, J.E. et al., Restricting the ligand-linked heme movement in Scapharca dimeric hemoglobin reveals tight coupling between distal and proximal contributions to cooperativity. Biochemistry (2001)

Release Date

2001-12-18

Peptides

Globin I - Ark Shell: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
D

Globin I - Ark Shell

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