Gene Information
Gene NameSI
OrganismHomo sapiens (Human)
Gene Length1827
Protein NamesSucrase-isomaltase, intestinal [Cleaved into: Sucrase (EC 3.2.1.48); Isomaltase (EC 3.2.1.10)]
Target Namesucrase-isomaltase, intestinal
Target TypeNA
Gene Age1488 ( ENSG00000090402 )
Evolutionary StageEukaryota
AlphaFoldDBP14410
Gene CardSI
Uniprot IDP14410
PfamPF01055; PF16863; PF00088
In ASDno
Allosteric Predictionyes (0.69641034)
Ortholog in AnimalsAlpaca_ SI ( ortholog_one2one )
GuineaPig_ SI ( ortholog_one2one )
Macaque_ SI ( ortholog_one2one )
Mouse_ Sis ( ortholog_one2one )
Pig_ SI ( ortholog_one2one )
Rat_ Si ( ortholog_one2one )
Rabbit_ SI ( ortholog_one2one )
OhnologsNA
ParalogsMYORG, GANC, MGAM2, GAA, GANAB, MGAM
Tissueduodenum, small.intestine, small.intestine.Peyers.patch
Tissue SpecificityExpressed in the poorly differentiated crypt cells of the small intestine as well as in the mature villous cells. Expressed at very low levels in the colon. {ECO:0000269|PubMed:1677636}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 3LPO  (X-ray  3.20A  3LPP  (X-ray  2.15A 
DBSNP rs9290264  rs121912612  rs9283633  rs267607049  rs121912615  rs765433197  rs121912613  rs121912616  rs121912611  rs121912614  rs143388292  rs4855271  rs79717168  rs9917722 
Subcellular location [CC]Apical cell membrane;
Single-pass type II membrane protein. Note=Brush border.
Mouse PG classificationNA
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