SMTL ID : 3tio.1 (1 other biounit)

Crystal structures of yrdA from Escherichia coli, a homologous protein of gamma-class carbonic anhydrase, show possible allosteric conformations

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.41 Å

Oligo State

homo-trimer

Ligands

3 x ZN: ZINC ION(Non-covalent)

ZN.1: 5 residues within 4Å: Chain A: H.66, V.67, H.69, H.95 Chain C: H.90 4 PLIP interactions: 3 interactions with chain A, 1 interactions with chain C Metal complexes: A:H.66, A:H.69, A:H.95, C:H.90 ZN.3: 5 residues within 4Å: Chain A: H.90 Chain B: H.66, V.67, H.69, H.95 4 PLIP interactions: 3 interactions with chain B, 1 interactions with chain A Metal complexes: B:H.66, B:H.69, B:H.95, A:H.90 ZN.4: 5 residues within 4Å: Chain B: H.90 Chain C: H.66, V.67, H.69, H.95 4 PLIP interactions: 3 interactions with chain C, 1 interactions with chain B Metal complexes: C:H.66, C:H.69, C:H.95, B:H.90

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

PO4.2: 4 residues within 4Å: Chain A: K.91 Chain B: K.91 Chain C: K.91 Ligands: PO4.5 5 PLIP interactions: 2 interactions with chain C, 1 interactions with chain A, 2 interactions with chain B Hydrogen bonds: C:K.91, B:K.91 Salt bridges: C:K.91, A:K.91, B:K.91 PO4.5: 10 residues within 4Å: Chain A: L.41, G.62, K.91 Chain B: L.41, G.62, K.91 Chain C: L.41, G.62, K.91 Ligands: PO4.2 11 PLIP interactions: 4 interactions with chain C, 3 interactions with chain A, 4 interactions with chain B Hydrogen bonds: C:L.41, B:G.62 Water bridges: C:K.91, C:K.91, A:K.91, A:K.91, B:K.91, B:K.91 Salt bridges: C:K.91, A:K.91, B:K.91

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Park, H.M. et al., Structures of the gamma-class carbonic anhydrase homologue YrdA suggest a possible allosteric switch. Acta Crystallogr.,Sect.D (2012)

Release Date

2012-08-01

Peptides

Protein YrdA: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

Protein YrdA

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