1ht6 Summary



The structure was published by Robert, X., Haser, R., Gottschalk, T.E., et al., Driguez, H., Svensson, B., and Aghajari, N., in 2003 in a paper entitled "The structure of barley alpha-amylase isozyme 1 reveals a novel role of domain C in substrate recognition and binding: a pair of sugar tongs" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.5 Å and deposited in 2000.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of ALPHA-AMYLASE ISOZYME 1. This molecule has the UniProt identifier P00693 (AMY1_HORVU)search. The sample contained 405 residues which is 98% of the natural sequence. Out of 405 residues 404 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):

Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A ALPHA-AMYLASE ISOZYME 1 P00693 (25-429) (AMY1_HORVU)search Hordeum vulgaresearch 98% 405 99%

This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P00693 (25 - 429) ALPHA-AMYLASE ISOZYME 1 Hordeum vulgare

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P00693) alpha-Amylases, C-terminal beta-sheet domainsearch, Amylase, catalytic domainsearch Glycosidasessearch, Golgi alpha-mannosidase IIsearch PF00128: Alpha amylase, catalytic domainsearch, PF07821: Alpha-amylase C-terminal beta-sheet domainsearch

Chain ID Molecular function (GO) Biological process (GO) Cellular component (GO)
A (P00693) alpha-amylase activitysearch hydrolase activity, acting on glycosyl bondssearch catalytic activitysearch calcium ion bindingsearch cation bindingsearch hydrolase activitysearch metal ion bindingsearch metabolic processsearch carbohydrate metabolic processsearch extracellular spacesearch extracellular regionsearch

Chain InterPro annotation
A Alpha amylasesearch Glycosyl hydrolase, family 13, catalytic domainsearch Glycosyl hydrolase, family 13, subfamily, catalytic domainsearch Alpha-amylase, C-terminal beta-sheetsearch Alpha-amylase, plantsearch Glycosyl hydrolase, family 13, all-betasearch Glycoside hydrolase, catalytic domainsearch Glycoside hydrolase, family 13search Glycoside hydrolase superfamilysearch