SMTL ID : 2oz9.1

E. coli TRP holorepressor, orthorhombic crystal form

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.65 Å

Oligo State

homo-dimer

Ligands

2 x NA: SODIUM ION(Non-functional Binders)

NA.1: 5 residues within 4Å: Chain A: E.59, R.62, G.63, E.64, M.65 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:E.59, A:E.59, A:G.63, A:E.64, A:M.65 Water bridges: A:R.62 NA.4: 5 residues within 4Å: Chain B: E.59, R.62, G.63, E.64, M.65 6 PLIP interactions: 6 interactions with chain B Hydrogen bonds: B:E.59, B:E.59, B:G.63, B:E.64, B:M.65 Water bridges: B:R.62

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 4 residues within 4Å: Chain A: R.62, L.104, K.105, D.107 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:K.105, A:D.107 Salt bridges: A:R.62 SO4.5: 4 residues within 4Å: Chain B: R.62, L.104, K.105, D.107 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:K.105, B:D.107 Salt bridges: B:R.62

2 x TRP: TRYPTOPHAN(Non-covalent)

TRP.3: 12 residues within 4Å: Chain A: R.53, V.57, T.80, R.83, G.84, S.87 Chain B: N.39, L.40, M.41, L.42, T.43, P.44 12 PLIP interactions: 4 interactions with chain B, 8 interactions with chain A, Hydrophobic interactions: B:T.43, A:R.53, A:R.53, A:V.57 Hydrogen bonds: B:L.40, A:T.80, A:S.87 Water bridges: B:R.47, B:R.47, A:R.53 Salt bridges: A:R.83 pi-Cation interactions: A:R.53 TRP.6: 12 residues within 4Å: Chain A: N.39, L.40, M.41, L.42, T.43, P.44 Chain B: R.53, V.57, T.80, R.83, G.84, S.87 12 PLIP interactions: 8 interactions with chain B, 4 interactions with chain A, Hydrophobic interactions: B:R.53, B:R.53, B:V.57, A:T.43 Hydrogen bonds: B:T.80, B:S.87, A:L.40 Water bridges: B:R.53, A:R.47, A:R.47 Salt bridges: B:R.83 pi-Cation interactions: B:R.53

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lawson, C.L. et al., Flexibility of the DNA-binding domains of trp repressor. Proteins (1988)

Release Date

2007-03-06

Peptides

Trp operon repressor: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
R

B
R

Trp operon repressor

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