SMTL ID : 1g94.1

CRYSTAL STRUCTURE ANALYSIS OF THE TERNARY COMPLEX BETWEEN PSYCHROPHILIC ALPHA AMYLASE FROM PSEUDOALTEROMONAS HALOPLANCTIS IN COMPLEX WITH A HEPTA-SACCHARIDE AND A TRIS MOLECULE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.74 Å

Oligo State

monomer

Ligands

1 x GLC- DAF: 4,6-dideoxy-4-{[(1S,5R,6S)-3-formyl-5,6-dihydroxy-4-oxocyclohex-2-en-1-yl]amino}-alpha-D-xylo-hex-5-enopyranose-(1-4)-alpha-D-glucopyranose(Non-covalent)

GLC-DAF.1: 11 residues within 4Å: Chain A: W.46, W.47, Y.50, Q.51, A.92, V.140, G.141, D.264, H.269 Ligands: GLC-GLC-DAF.2, TRS.5 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:A.92 Hydrogen bonds: A:W.47, A:Q.51, A:D.264, A:H.269 Water bridges: A:G.141, A:G.141

1 x GLC- GLC- DAF: 4,6-dideoxy-4-{[(1S,5R,6S)-3-formyl-5,6-dihydroxy-4-oxocyclohex-2-en-1-yl]amino}-alpha-D-xylo-hex-5-enopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose

GLC-GLC-DAF.2: 21 residues within 4Å: Chain A: W.46, Y.50, L.86, H.89, Y.127, L.139, L.142, R.172, D.174, A.175, K.177, H.178, E.200, I.202, Q.204, E.207, H.263, D.264, G.270 Ligands: GLC-DAF.1, TRS.5 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Y.127, A:Y.127, A:R.172, A:R.172, A:A.175, A:E.200, A:E.200, A:D.264, A:K.177, A:K.177, A:E.207 Water bridges: A:E.200, A:E.200, A:N.262

1 x CA: CALCIUM ION(Non-covalent)

CA.3: 4 residues within 4Å: Chain A: N.88, Q.135, D.144, H.178 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:Q.135, A:D.144, A:H.178, H2O.4, H2O.5

1 x CL: CHLORIDE ION(Non-functional Binders)

CL.4: 4 residues within 4Å: Chain A: R.172, T.221, N.262, K.300 Ligand excluded by PLIP

1 x TRS: 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL(Non-functional Binders)

TRS.5: 5 residues within 4Å: Chain A: V.140, H.269 Ligands: GLC-DAF.1, GLC-GLC-DAF.2, GLC-GLC-DAF.2 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:H.269

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Aghajari, N. et al., Crystallographic evidence of a transglycosylation reaction: ternary complexes of a psychrophilic alpha-amylase. Biochemistry (2002)

Release Date

2001-12-12

Peptides

ALPHA-AMYLASE: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

ALPHA-AMYLASE

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