ISDA: 1UA7

Deposition Date 2003-03-03

Release Date 2004-05-18

Last Version Date 2023-12-27

Entry Detail

PDB ID:

1UA7

Keywords:

HYDROLASE

Title:

Crystal Structure Analysis of Alpha-Amylase from Bacillus Subtilis complexed with Acarbose

Biological Source:

Source Organism:

Bacillus subtilis (Taxon ID: 1423)

Host Organism:

Bacillus subtilis

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.21 Å

R-Value Free:

0.26

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Alpha-amylase
Gene (Uniprot):amyE
Mutagens:N356Q
Chain IDs:A
Chain Length:422
Number of Molecules:1
Biological Source:Bacillus subtilis

UniProt ID:P00691 Pfam ID:PF00128, PF02806

Ligand Molecules

ACI

Primary Citation

Crystal structure of Bacillus subtilis alpha-amylase in complex with acarbose

Kagawa, M, Fujimoto, Z, Momma, M, Takase, K, Mizuno, H, Fujimoto, Z, Takase, K, Doui, N, Momma, M, Matsumoto, T, Mizuno, H, Mizuno, H, Morimoto, Y, Tsukihara, T, Matsumoto, T, Takase, K, Takase, K, Matsumoto, T, Mizuno, H, Yamane, K, Yamane, K, Hirata, Y, Furusato, T, Yamazaki, H, Nakayama, A.Show

J.BACTERIOL. 185 6981 6984 (2003)

PMID: 14617662 DOI: 10.1128/JB.185.23.6981-6984.2003

Abstact

The crystal structure of Bacillus subtilis alpha-amylase, in complex with the pseudotetrasaccharide inhibitor acarbose, revealed an hexasaccharide in the active site as a result of transglycosylation. After comparison with the known structure of the catalytic-site mutant complexed with the native substrate maltopentaose, it is suggested that the present structure represents a mimic intermediate in the initial stage of the catalytic process.

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Primary Citation of related structures

Abstact

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