SMTL ID : 1nwi.1 (1 other biounit)

Crystal structure of CO-HbI transformed to an unligated state

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 18 residues within 4Å: Chain A: Y.50, F.51, R.53, L.54, H.69, T.72, L.73, A.76, L.77, F.97, N.100, H.101, R.104, I.106, F.111, I.114 Chain B: K.96, N.100 20 PLIP interactions: 18 interactions with chain A, 2 interactions with chain B, Hydrophobic interactions: A:Y.50, A:F.51, A:L.73, A:F.97, A:F.97, A:I.106, A:F.111, A:F.111, A:I.114 Hydrogen bonds: A:N.100, B:N.100 Water bridges: A:F.97, A:N.100, A:H.101 Salt bridges: A:R.53, A:H.101, A:R.104, B:K.96 pi-Stacking: A:H.69 Metal complexes: A:H.101 HEM.2: 16 residues within 4Å: Chain A: K.96, N.100 Chain B: T.47, Y.50, F.51, R.53, H.69, L.73, A.76, L.77, F.97, N.100, H.101, R.104, F.111, I.114 20 PLIP interactions: 4 interactions with chain A, 16 interactions with chain B, Hydrogen bonds: A:N.100, A:N.100, B:N.100 Salt bridges: A:K.96, A:K.96, B:R.53, B:H.101, B:R.104 Hydrophobic interactions: B:T.47, B:F.51, B:L.73, B:L.77, B:F.97, B:F.97, B:F.111, B:F.111, B:I.114 Water bridges: B:R.104 pi-Stacking: B:H.69 Metal complexes: B:H.101

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Knapp, J.E. et al., Ligand-linked structural transitions in crystals of a cooperative dimeric hemoglobin. Biochemistry (2003)

Release Date

2003-08-26

Peptides

globin I: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

globin I

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