SMTL ID : 1idr.1

CRYSTAL STRUCTURE OF THE TRUNCATED-HEMOGLOBIN-N FROM MYCOBACTERIUM TUBERCULOSIS

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

homo-dimer

Ligands

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

PO4.1: 2 residues within 4Å: Chain A: R.53, K.57 4 PLIP interactions: 4 interactions with chain A Water bridges: A:R.53, A:K.57 Salt bridges: A:R.53, A:K.57 PO4.2: 2 residues within 4Å: Chain A: P.108, S.109 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:S.109, A:S.109 Water bridges: A:E.110 PO4.5: 2 residues within 4Å: Chain B: Q.82, G.83 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Q.82, B:G.83

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

HEM.3: 23 residues within 4Å: Chain A: F.45, F.46, T.49, R.53, L.54, K.57, Q.58, F.61, Y.72, G.74, A.75, M.77, V.80, H.81, R.84, I.86, H.90, F.91, V.94, I.119, L.122, V.126 Ligands: OXY.4 23 PLIP interactions: 23 interactions with chain A, Hydrophobic interactions: A:F.46, A:F.46, A:F.46, A:L.54, A:F.61, A:F.61, A:Y.72, A:V.80, A:V.80, A:I.86, A:I.86, A:H.90, A:F.91, A:V.94, A:I.119, A:L.122 Hydrogen bonds: A:A.75 Water bridges: A:R.53, A:R.53, A:R.84 Salt bridges: A:R.53, A:R.84 Metal complexes: A:H.81 HEM.6: 23 residues within 4Å: Chain B: L.42, F.45, F.46, T.49, R.53, L.54, Q.58, F.61, Y.72, G.74, A.75, M.77, V.80, H.81, R.84, I.86, H.90, F.91, V.94, I.119, L.122, V.126 Ligands: OXY.7 22 PLIP interactions: 22 interactions with chain B, Hydrophobic interactions: B:L.42, B:F.45, B:F.45, B:F.46, B:F.46, B:T.49, B:L.54, B:F.61, B:F.61, B:Y.72, B:I.86, B:I.86, B:H.90, B:F.91, B:V.94, B:I.119, B:L.122, B:V.126 Hydrogen bonds: B:A.75 Salt bridges: B:R.53, B:R.84 Metal complexes: B:H.81

2 x OXY: OXYGEN MOLECULE(Non-covalent)

OXY.4: 4 residues within 4Å: Chain A: Y.33, F.46, Q.58 Ligands: HEM.3 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Y.33, A:Q.58 OXY.7: 4 residues within 4Å: Chain B: Y.33, F.46, Q.58 Ligands: HEM.6 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Y.33, B:Q.58

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Milani, M. et al., Mycobacterium tuberculosis hemoglobin N displays a protein tunnel suited for O2 diffusion to the heme. EMBO J. (2001)

Release Date

2001-08-22

Peptides

HEMOGLOBIN HBN: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

HEMOGLOBIN HBN

Related Entries With Identical Sequence