SMTL ID : 2qv4.1

Human pancreatic alpha-amylase complexed with nitrite and acarbose

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.97 Å

Oligo State

monomer

Ligands

1 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG.1: 3 residues within 4Å: Chain A: N.459, G.460, N.461 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.460 Water bridges: A:N.461

1 x CA: CALCIUM ION(Non-covalent)

CA.2: 4 residues within 4Å: Chain A: N.100, R.158, D.167, H.201 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:R.158, A:D.167, A:H.201, H2O.1, H2O.10

1 x NO2: NITRITE ION(Non-covalent)

NO2.3: 6 residues within 4Å: Chain A: R.195, E.233, T.254, F.256, N.298, R.337 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:R.195, A:N.298, A:R.337, A:R.337

1 x QV4: 4,6-dideoxy-4-{[(1S,4R,5R,6S)-4-{[alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranosyl]oxy}-5,6-dihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl]amino}-alpha-D-glucopyranose(Non-covalent)

QV4.4: 23 residues within 4Å: Chain A: I.51, W.58, W.59, Y.62, Q.63, H.101, G.104, N.105, A.106, V.107, L.162, T.163, G.164, L.165, R.195, D.197, A.198, H.201, E.233, I.235, H.299, D.300, H.305 17 PLIP interactions: 17 interactions with chain A Hydrogen bonds: A:Q.63, A:Q.63, A:G.104, A:N.105, A:A.106, A:V.107, A:G.164, A:R.195, A:E.233, A:E.233, A:D.300, A:D.300, A:H.305 Water bridges: A:N.105, A:E.233, A:I.235, A:N.298

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Maurus, R. et al., Alternative catalytic anions differentially modulate human alpha-amylase activity and specificity. Biochemistry (2008)

Release Date

2008-03-25

Peptides

Pancreatic alpha-amylase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Pancreatic alpha-amylase

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