The domain within your query sequence starts at position 314 and ends at position 787; the E-value for the Glyco_hydro_31 domain shown below is 2.1e-142.

YIFLGDTPEQVVQQYQELIGRPAMPAYWNLGFQLSRWNYVSLDKVKEVVRRNREAGIPYD
AQVTDIDYMEDKKDFTYDEVAFKGLPEFAQDLHNHGQKYIIILDPAISINKRANGAEYQT
YVRGNEQNVWVKESDGTTSLIGEVWPGLTVYPDFTNPRTWEWWANECNLFHQQVEYDGLW
IDMNEVSSFIHGSQKGCAPNLLNYPPFTPGILDKIMYSKTLCMDAVQHWGNQYDVHSLYG
YSMAIATEKAVEKVFPNKRSFILTRSTFAGSGHHAAHWLGDNTASWEQMEWSITGMLEFG
MFGMPLVGADICGFLANTTEELCRRWMQLGAFYPFSRNHNAEGYAEQDPAFWGADSLLVN
TSRHYLTIRYTLLPFLYTLFYRAHAFGETVARPFLHEFYEDPNSWIEDTQFLWGPALLIT
PVLRPETKYVSAYIPDATWYDYETGEKRPWRKQRVDMYLPEDKIGLHLRGGYII

Glyco_hydro_31

 Glyco_hydro_31
PFAM accession number:PF01055
Interpro abstract (IPR000322):

O-Glycosyl hydrolases ( EC 3.2.1. ) are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycosyl hydrolases, based on sequence similarity, has led to the definition of 85 different families [ (PUBMED:7624375) (PUBMED:8535779) ]. This classification is available on the CAZy (CArbohydrate-Active EnZymes) website.

Glycoside hydrolase family 31 comprises enzymes with several known activities; alpha-glucosidase ( EC 3.2.1.20 ), alpha-galactosidase ( EC 3.2.1.22 ); glucoamylase ( EC 3.2.1.3 ), sucrase-isomaltase ( EC 3.2.1.48 ); isomaltase ( EC 3.2.1.10 ); alpha-xylosidase ( EC 3.2.1 ); alpha-glucan lyase ( EC 4.2.2.13 ).

Glycoside hydrolase family 31 groups a number of glycosyl hydrolases on the basis of sequence similarities [ (PUBMED:1747104) (PUBMED:1761061) (PUBMED:1743281) ]. An aspartic acid has been implicated [ (PUBMED:1856189) ] in the catalytic activity of sucrase, isomaltase, and lysosomal alpha-glucosidase.

GO process:carbohydrate metabolic process (GO:0005975)
GO function:hydrolase activity, hydrolyzing O-glycosyl compounds (GO:0004553)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry Glyco_hydro_31