SMTL ID : 3h3k.1

Structure of A. acidocaldarius cellulase CelA in complex with cellotetraose

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

monomer

Ligands

1 x GLC- BGC- BGC- BGC: beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-alpha-D-glucopyranose

GLC-BGC-BGC-BGC.1: 15 residues within 4Å: Chain A: D.143, A.144, D.146, Y.150, F.221, G.298, Y.300, W.343, W.401, H.485, Q.487, E.515, Y.519, W.520 Ligands: BGC.2 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:H.485, A:G.298, A:Y.511 Water bridges: A:E.299, A:E.299

1 x BGC: beta-D-glucopyranose(Non-covalent)

BGC.2: 6 residues within 4Å: Chain A: F.221, H.461, R.463, Y.511, E.515 Ligands: GLC-BGC-BGC-BGC.1 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:H.461, A:R.463, A:R.463, A:E.515

1 x CA: CALCIUM ION(Non-covalent)

CA.3: 5 residues within 4Å: Chain A: D.302, E.304, D.307, E.308, A.344 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.302, A:D.307, A:E.308, A:A.344, H2O.3

1 x ZN: ZINC ION(Non-covalent)

ZN.4: 4 residues within 4Å: Chain A: C.104, C.121, H.122, H.142 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:C.104, A:C.121, A:H.122, A:H.142

2 x MPD: (4S)-2-METHYL-2,4-PENTANEDIOL(Non-functional Binders)

MPD.5: 3 residues within 4Å: Chain A: D.111, E.112, S.180 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:E.112 Water bridges: A:R.176 MPD.6: 9 residues within 4Å: Chain A: W.339, E.340, L.348, E.377, L.378, L.381, N.409, R.410, A.413 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:E.340, A:L.348, A:E.377, A:L.378, A:R.410, A:A.413 Hydrogen bonds: A:W.339 Water bridges: A:W.339, A:E.340, A:L.341

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Eckert, K. et al., Crystal structures of A. acidocaldarius endoglucanase Cel9A in complex with Cello-oligosaccharides: strong -1 and -2 subsites mimic cellobiohydrolase activity. J.Mol.Biol. (2009)

Release Date

2009-10-13

Peptides

Cellulase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Cellulase

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