SMTL ID : 4hrt.2 (1 other biounit)

Scapharca tetrameric hemoglobin, unliganded

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.46 Å

Oligo State

hetero-2-2-mer

Ligands

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

HEM.1: 19 residues within 4Å: Chain A: Y.51, F.52, R.54, L.55, H.70, T.73, L.74, A.77, L.78, F.98, N.101, H.102, R.105, I.107, A.111, F.112, I.115 Chain B: K.99, N.103 23 PLIP interactions: 20 interactions with chain A, 3 interactions with chain B, Hydrophobic interactions: A:Y.51, A:F.52, A:F.52, A:L.74, A:L.74, A:F.98, A:F.98, A:I.107, A:I.107, A:F.112, A:F.112, A:I.115 Water bridges: A:L.55, A:N.101, A:H.102, A:R.105 Salt bridges: A:R.54, A:H.102, A:R.105, B:K.99, B:K.99 Metal complexes: A:H.102 Hydrogen bonds: B:N.103 HEM.3: 19 residues within 4Å: Chain A: K.97, N.101 Chain B: K.53, F.54, R.56, L.57, H.72, T.75, L.76, A.79, L.80, F.100, N.103, H.104, R.107, I.109, E.113, F.114, I.117 20 PLIP interactions: 17 interactions with chain B, 3 interactions with chain A, Hydrophobic interactions: B:F.54, B:F.54, B:F.54, B:L.76, B:L.76, B:F.100, B:F.114, B:F.114, B:I.117 Water bridges: B:N.103, B:H.104, B:R.107 Salt bridges: B:R.56, B:H.104, B:R.107, A:K.97, A:K.97 pi-Stacking: B:H.72 Metal complexes: B:H.104 Hydrogen bonds: A:N.101 HEM.4: 18 residues within 4Å: Chain C: Y.51, F.52, R.54, L.55, H.70, T.73, L.74, A.77, L.78, F.98, N.101, H.102, R.105, I.107, F.112, I.115 Chain D: K.99, N.103 20 PLIP interactions: 3 interactions with chain D, 17 interactions with chain C, Hydrogen bonds: D:N.103, C:N.101 Salt bridges: D:K.99, D:K.99, C:R.54, C:H.102, C:R.105 Hydrophobic interactions: C:Y.51, C:F.52, C:F.52, C:L.74, C:L.74, C:F.98, C:I.107, C:F.112, C:F.112, C:I.115 Water bridges: C:H.102, C:R.105 Metal complexes: C:H.102 HEM.5: 19 residues within 4Å: Chain C: K.97, N.101 Chain D: K.53, F.54, R.56, L.57, H.72, T.75, L.76, A.79, L.80, F.100, N.103, H.104, R.107, I.109, E.113, F.114, I.117 21 PLIP interactions: 18 interactions with chain D, 3 interactions with chain C, Hydrophobic interactions: D:F.54, D:F.54, D:F.54, D:F.54, D:L.76, D:L.76, D:F.100, D:I.109, D:F.114, D:F.114, D:I.117 Water bridges: D:N.103, D:H.104 Salt bridges: D:R.56, D:H.104, D:R.107, C:K.97, C:K.97 pi-Stacking: D:H.72 Metal complexes: D:H.104 Hydrogen bonds: C:N.101

1 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.2: 1 residues within 4Å: Chain A: K.8 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:K.8

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ronda, L. et al., Tertiary and Quaternary Allostery in Tetrameric Hemoglobin from Scapharca inaequivalvis. Biochemistry (2013)

Release Date

2012-12-12

Peptides

Globin-2 A chain: AC
Hemoglobin B chain: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

C
G

B
F

D
H

Globin-2 A chain

Hemoglobin B chain

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