3a23 Summary

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Crystal Structure of beta-L-Arabinopyranosidase complexed with D-galactose

The structure was published by Ichinose, H., Fujimoto, Z., Honda, M., et al., Nishimoto, Y., Uzura, A., and Kaneko, S., in 2009 in a paper entitled "A beta-l-Arabinopyranosidase from Streptomyces avermitilis is a novel member of glycoside hydrolase family 27." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.9 Å and deposited in 2009.

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

This PDB entry contains multiple copies of the structure of Putative secreted alpha-galactosidase.

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 has more than one probable quaternary state observed. For more details see the quaternary structure page.

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 Putative secreted alpha-galactosidase Q82L26 (45-658) (Q82L26_STRAW)search Streptomyces avermitilis MA-4680 = NBRC 14893search 93% 614 100%
B Putative secreted alpha-galactosidase Q82L26 (45-658) (Q82L26_STRAW)search Streptomyces avermitilis MA-4680 = NBRC 14893search 93% 614 100%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
Q82L26 (45 - 658) Putative secreted alpha-galactosidase Streptomyces avermitilis

Chain Structural classification (CATH) Sequence family (Pfam)
A, B (Q82L26) Aldolase class Isearch, Trefoil (Acidic Fibroblast Growth Factor, subunit A)search PF00652: Ricin-type beta-trefoil lectin domainsearch, PF02065: Melibiasesearch

Chain ID Molecular function (GO) Biological process (GO)
A, B (Q82L26) hydrolase activity, hydrolyzing O-glycosyl compoundssearch alpha-galactosidase activitysearch catalytic activitysearch raffinose alpha-galactosidase activitysearch carbohydrate metabolic processsearch

Chain InterPro annotation
A, B Glycoside hydrolase, clan GH-Dsearch Ricin B lectin domainsearch Glycoside hydrolase, family 27search Glycosyl hydrolase, family 13, all-betasearch Aldolase-type TIM barrelsearch Glycoside hydrolase superfamilysearch