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Basic Information | |
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Species | Arabidopsis thaliana |
Cazyme ID | AT3G45940.1 |
Family | GH31 |
Protein Properties | Length: 869 Molecular Weight: 97450.4 Isoelectric Point: 6.6073 |
Chromosome | Chromosome/Scaffold: 3 Start: 16886226 End: 16889171 |
Description | glycosyl hydrolase, family 31, putative, expressed |
View CDS |
Signature Domain Download full data set without filtering | |||
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Family | Start | End | Evalue |
GH31 | 260 | 707 | 0 |
FYFFAGPSPLNVVDQYTSLIGRPAPMPYWSLGFHQCRWGYRNVSVVKDVVDNYQKAKIPLDVIWNDADYMDGYKDFTLDLVNFPHAKLLSFLDRIHKMGM KYVVIKDPGIGVNASYGVYQRGMASDVFIKYEGKPFLAQVWPGPVYFPDFLNPKTVSWWGDEIRRFHELVPIDGLWIDMNEINATGHKASLGFKTIPTSA YHYNGVREYDAHSIYGFSEAIATHKALLAVQGKRPFILSRSTFVGSGQYAAHWTGDNQGTWQSLQVSISTMLNFGIFGVPMVGSDICGFFPPTPEELCNR WIEVGAFYPFSRDHADYYAPRKELYQWGTVAESARNALGMRYKLLPFLYTLNYEAHMSGAPIARPLFFSFPEFTECYGLSKQFLLGSSLMISPVLEQGKT QVEALFPPGSWYHMFDMTQVVVSKNGRLFTLPAPFNVVNVHLYQNAIL |
Full Sequence |
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Protein Sequence Length: 869 Download |
MASCLSLLVA IILCFSSLQC SNAIGKGYRL ISMEKSPDDG SFIGYLQVKQ SNKIYGSDIT 60 ILRLFINYRT DHRLRVHITD AKKQRWEVPY NLLRREQPPN VIGKSRKSPV TVQEISGPEL 120 ILIFTVDPFS FAVRRRSNGE TIFNTSSSDE SFGEMVFKDQ YLEISTSLPK DASLYGFGEN 180 SQANGIKLVP NEPYTLFTED VSAFNLNTDL YGSHPVYMDL RNVSGKAYAH SVLLLNSHGM 240 DVFYRGDSLT YKVIGGVFDF YFFAGPSPLN VVDQYTSLIG RPAPMPYWSL GFHQCRWGYR 300 NVSVVKDVVD NYQKAKIPLD VIWNDADYMD GYKDFTLDLV NFPHAKLLSF LDRIHKMGMK 360 YVVIKDPGIG VNASYGVYQR GMASDVFIKY EGKPFLAQVW PGPVYFPDFL NPKTVSWWGD 420 EIRRFHELVP IDGLWIDMNE INATGHKASL GFKTIPTSAY HYNGVREYDA HSIYGFSEAI 480 ATHKALLAVQ GKRPFILSRS TFVGSGQYAA HWTGDNQGTW QSLQVSISTM LNFGIFGVPM 540 VGSDICGFFP PTPEELCNRW IEVGAFYPFS RDHADYYAPR KELYQWGTVA ESARNALGMR 600 YKLLPFLYTL NYEAHMSGAP IARPLFFSFP EFTECYGLSK QFLLGSSLMI SPVLEQGKTQ 660 VEALFPPGSW YHMFDMTQVV VSKNGRLFTL PAPFNVVNVH LYQNAILPMQ QVVAFPAGAS 720 EGYASGKLFL DDDELPEMKL GNGKSTYIDF YASVGNESVK IWSQVKEGQF ALSQGLVIEK 780 VIVLGLKGTW KVSEILLNGS SISNETKTIE VSSKEQMYVV GSEDEGESKS FMVELKGLEM 840 LVGKDFNISW KMASTNVLSM AGNEVIAR* 900 |
Functional Domains Download unfiltered results here | ||||||||
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Cdd ID | Domain | E-Value | Start | End | Length | Domain Description | ||
cd06600 | GH31_MGAM-like | 1.0e-103 | 280 | 618 | 342 | + This family includes the following closely related glycosyl hydrolase family 31 (GH31) enzymes: maltase-glucoamylase (MGAM), sucrase-isomaltase (SI), lysosomal acid alpha-glucosidase (GAA), neutral alpha-glucosidase C (GANC), the alpha subunit of neutral alpha-glucosidase AB (GANAB), and alpha-glucosidase II. MGAM is one of the two enzymes responsible for catalyzing the last glucose-releasing step in starch digestion. SI is implicated in the digestion of dietary starch and major disaccharides such as sucrose and isomaltose, while GAA degrades glycogen in the lysosome, cleaving both alpha-1,4 and alpha-1,6 glucosidic linkages. MGAM and SI are anchored to small-intestinal brush-border epithelial cells. The absence of SI from the brush border membrane or its malfunction is associated with malabsorption disorders such as congenital sucrase-isomaltase deficiency (CSID). The domain architectures of MGAM and SI include two tandem GH31 catalytic domains, an N-terminal domain found near the membrane-bound end and a C-terminal luminal domain. Both of the tandem GH31 domains of MGAM and SI are included in this family. The domain architecture of GAA includes an N-terminal TFF (trefoil factor family) domain in addition to the GH31 catalytic domain. Deficient GAA expression causes pompe disease, an autosomal recessive genetic disorder also known as glycogen storage disease type II (GSDII). GANC and GANAB are key enzymes in glycogen metabolism that hydrolyze terminal, non-reducing 1,4-linked alpha-D-glucose residues from glycogen in the endoplasmic reticulum. Alpha-glucosidase II is a GH31 enzyme, found in bacteria and plants, which has exo-alpha-1,4-glucosidase and oligo-1,6-glucosidase activities. Alpha-glucosidase II has been characterized in Bacillus thermoamyloliquefaciens where it forms a homohexamer. This family also includes the MalA alpha-glucosidase from Sulfolobus sulfataricus and the AglA alpha-glucosidase from Picrophilus torridus. MalA is part of the carbohydrate-metabolizing machinery that allows this organism to utilize carbohydrates, such as maltose, as the sole carbon and energy source. The MGAM-like family corresponds to subgroup 1 in the Ernst et al classification of GH31 enzymes. | ||
cd06604 | GH31_glucosidase_II_MalA | 6.0e-125 | 280 | 618 | 345 | + Alpha-glucosidase II (alpha-D-glucoside glucohydrolase) is a glycosyl hydrolase family 31 (GH31) enzyme, found in bacteria and plants, which has exo-alpha-1,4-glucosidase and oligo-1,6-glucosidase activities. Alpha-glucosidase II has been characterized in Bacillus thermoamyloliquefaciens where it forms a homohexamer. This family also includes the MalA alpha-glucosidase from Sulfolobus sulfataricus and the AglA alpha-glucosidase from Picrophilus torridus. MalA is part of the carbohydrate-metabolizing machinery that allows this organism to utilize carbohydrates, such as maltose, as the sole carbon and energy source. | ||
COG1501 | COG1501 | 1.0e-135 | 138 | 765 | 658 | + Alpha-glucosidases, family 31 of glycosyl hydrolases [Carbohydrate transport and metabolism] | ||
pfam01055 | Glyco_hydro_31 | 0 | 261 | 707 | 451 | + Glycosyl hydrolases family 31. Glycosyl hydrolases are key enzymes of carbohydrate metabolism. Family 31 comprises of enzymes that are, or similar to, alpha- galactosidases. | ||
cd06602 | GH31_MGAM_SI_GAA | 0 | 280 | 631 | 357 | + This family includes the following three closely related glycosyl hydrolase family 31 (GH31) enzymes: maltase-glucoamylase (MGAM), sucrase-isomaltase (SI), and lysosomal acid alpha-glucosidase (GAA), also known as acid-maltase. MGAM is one of the two enzymes responsible for catalyzing the last glucose-releasing step in starch digestion. SI is implicated in the digestion of dietary starch and major disaccharides such as sucrose and isomaltose, while GAA degrades glycogen in the lysosome, cleaving both alpha-1,4 and alpha-1,6 glucosidic linkages. MGAM and SI are anchored to small-intestinal brush-border epithelial cells. The absence of SI from the brush border membrane or its malfunction is associated with malabsorption disorders such as congenital sucrase-isomaltase deficiency (CSID). The domain architectures of MGAM and SI include two tandem GH31 catalytic domains, an N-terminal domain found near the membrane-bound end, and a C-terminal luminal domain. Both of the tandem GH31 domains of MGAM and SI are included in this family. The domain architecture of GAA includes an N-terminal TFF (trefoil factor family) domain in addition to the GH31 catalytic domain. Deficient GAA expression causes pompe disease, an autosomal recessive genetic disorder also known as glycogen storage disease type II (GSDII). |
Gene Ontology | |
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GO Term | Description |
GO:0004553 | hydrolase activity, hydrolyzing O-glycosyl compounds |
GO:0005975 | carbohydrate metabolic process |
GO:0012505 | endomembrane system |
Annotations - NR Download unfiltered results here | |||||||
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Source | Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
GenBank | AAD05539.1 | 0 | 14 | 853 | 13 | 905 | alpha-xylosidase precursor [Arabidopsis thaliana] |
EMBL | CAB82818.1 | 0 | 1 | 868 | 1 | 855 | putative protein [Arabidopsis thaliana] |
RefSeq | NP_177023.1 | 0 | 14 | 853 | 21 | 913 | XYL1 (ALPHA-XYLOSIDASE 1); alpha-N-arabinofuranosidase/ hydrolase, hydrolyzing O-glycosyl compounds / xylan 1,4-beta-xylosidase [Arabidopsis thaliana] |
RefSeq | NP_190180.1 | 0 | 1 | 868 | 1 | 868 | alpha-xylosidase, putative [Arabidopsis thaliana] |
RefSeq | XP_002531635.1 | 0 | 2 | 853 | 5 | 927 | alpha-glucosidase, putative [Ricinus communis] |
Annotations - PDB Download unfiltered results here | |||||||
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Source | Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
PDB | 3w38_A | 0 | 1 | 848 | 10 | 904 | A Chain A, Endocellulase E1 From Acidothermus Cellulolyticus Mutant Y245g |
PDB | 3w37_A | 0 | 1 | 848 | 10 | 904 | A Chain A, Endocellulase E1 From Acidothermus Cellulolyticus Mutant Y245g |
PDB | 3lpp_D | 0 | 51 | 850 | 102 | 898 | A Chain A, Endocellulase E1 From Acidothermus Cellulolyticus Mutant Y245g |
PDB | 3lpp_C | 0 | 51 | 850 | 102 | 898 | A Chain A, Endocellulase E1 From Acidothermus Cellulolyticus Mutant Y245g |
PDB | 3lpp_B | 0 | 51 | 850 | 102 | 898 | A Chain A, Endocellulase E1 From Acidothermus Cellulolyticus Mutant Y245g |
Metabolic Pathways | |||
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Pathway Name | Reaction | EC | Protein Name |
starch degradation I | RXN-2141 | EC-3.2.1.20 | α-glucosidase |