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Q43763 (AGLU_HORVU) Reviewed, UniProtKB/Swiss-Prot

Last modified October 16, 2013. Version 59. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Alpha-glucosidase

EC=3.2.1.20
Alternative name(s):
Maltase
OrganismHordeum vulgare (Barley)
Taxonomic identifier4513 [NCBI]
Taxonomic lineageEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaeBEP cladePooideaeTriticeaeHordeum

Protein attributes

Sequence length877 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at transcript level

General annotation (Comments)

Catalytic activity

Hydrolysis of terminal, non-reducing (1->4)-linked alpha-D-glucose residues with release of alpha-D-glucose.

Tissue specificity

High levels seen in the aleurone and scutellum after germination, while low levels are found in developing seeds.

Developmental stage

Levels increase steadily throughout imbibition reaching maximum levels at day 7. During germination, levels increase from day 2, reach maximum levels at day 3 and decline after day 5.

Induction

By gibberellin A3 (GA).

Sequence similarities

Belongs to the glycosyl hydrolase 31 family.

Ontologies

Keywords
   DomainSignal
   Molecular functionGlycosidase
Hydrolase
   PTMGlycoprotein
Gene Ontology (GO)
   Biological_processcarbohydrate metabolic process

Inferred from electronic annotation. Source: InterPro

   Molecular_functioncarbohydrate binding

Inferred from electronic annotation. Source: InterPro

maltose alpha-glucosidase activity

Inferred from electronic annotation. Source: UniProtKB-EC

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Signal peptide1 – 2323 Potential
Chain24 – 877854Alpha-glucosidase
PRO_0000018583

Sites

Active site4371 By similarity
Active site4401 By similarity
Active site5341Proton donor By similarity

Amino acid modifications

Glycosylation1911N-linked (GlcNAc...) Potential
Glycosylation2981N-linked (GlcNAc...) Potential
Glycosylation3381N-linked (GlcNAc...) Potential
Glycosylation3911N-linked (GlcNAc...) Potential
Glycosylation4711N-linked (GlcNAc...) Potential
Glycosylation5701N-linked (GlcNAc...) Potential

Sequences

Sequence LengthMass (Da)Tools
Q43763 [UniParc].

Last modified November 1, 1996. Version 1.
Checksum: E3B5C16E4588C492

FASTA87796,933
        10         20         30         40         50         60 
MATVGVLLLC LCLCLFAPRL CSSKEEGPLA ARTVLAVAVT MEGALRAEAA TGGRSSTGDV 

        70         80         90        100        110        120 
QRLAVYASLE TDSRLRVRIT DADHPRWEVP QDIIPRPAPG DVLHDAPPAS SAPLQGRVLS 

       130        140        150        160        170        180 
PAGSDLVLTV HASPFRFTVS RRSTGDTLFD TAPGLVFRDK YLEVTSALPA GRASLYGLGE 

       190        200        210        220        230        240 
HTKSSFRLRH NDSFTLWNAD IGASYVDVNL YGSHPFYMDV RAPGTAHGVL LLSSNGMDVL 

       250        260        270        280        290        300 
YGGSYVTYKV IGGVLDFYFF AGPNPLAVVD QYTQLIARPA PMPYWSFGFH QCRYGYLNVS 

       310        320        330        340        350        360 
DLERVVARYA KARIPLEVMW TDIDYMDGFK DFTLDRVNFT AAELRPFVDR LHRNAQKYVL 

       370        380        390        400        410        420 
ILDPGIRVDP IDATYGTFVR GMQQDIFLKR NGTNFVGNVW PGDVYFPDFM HPAAAEFWAR 

       430        440        450        460        470        480 
EISLFRRTIP VDGLWIDMNE ISNFYNPEPM NALDDPPYRI NNDGTGRPIN NKTVRPLAVH 

       490        500        510        520        530        540 
YGGVTEYEEH NLFGLLEARA TGRGVLRDTG RRPFVLSRST FVGSGRYTAY WTGDNAATWG 

       550        560        570        580        590        600 
DLRYSINTML SFGLFGMPMI GADICGFNGN TTEELCGRWI QLGAFYPFSR DHSAIFTVRR 

       610        620        630        640        650        660 
ELYLWPSVAA SGRKALGLRY QLLPYFYTLM YEAHMTGAPI ARPLFFSYPH DVATYGVDRQ 

       670        680        690        700        710        720 
FLLGRGVLVS PVLEPGPTTV DAYFPAGRWY RLYDYSLAVA TRTGKHVRLP APADTVNVHL 

       730        740        750        760        770        780 
TGGTILPLQQ SALTTSRARR TAFHLLVALA EDGTASGYLF LDDGDSPEYG RRSDWSMVRF 

       790        800        810        820        830        840 
NYKIPNNKGA IKVKSEVVHN SYAQSRTLVI SKVVLMGHRS PAAPKKLTVH VNSAEVEASS 

       850        860        870 
SAGTRYQNAG GLGGVAHIGG LSLVVGEEFE LKVAMSY 

« Hide

References

[1]"Molecular cloning and characterization of a gibberellin-inducible, putative alpha-glucosidase gene from barley."
Tibbot B.K., Skadsen R.W.
Plant Mol. Biol. 30:229-241(1996) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: cv. Morex.
Tissue: Aleurone.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
U22450 mRNA. Translation: AAB02985.1.
PIRS65057.
UniGeneHv.20758.

3D structure databases

ProteinModelPortalQ43763.
ModBaseSearch...
MobiDBSearch...

Protein family/group databases

CAZyGH31. Glycoside Hydrolase Family 31.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Organism-specific databases

GrameneQ43763.

Gene expression databases

GenevestigatorQ43763.

Family and domain databases

InterProIPR011013. Gal_mutarotase_SF_dom.
IPR000322. Glyco_hydro_31.
IPR025887. Glyco_hydro_31_N_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PfamPF13802. Gal_mutarotas_2. 1 hit.
PF01055. Glyco_hydro_31. 1 hit.
[Graphical view]
SUPFAMSSF51445. SSF51445. 2 hits.
SSF74650. SSF74650. 1 hit.
PROSITEPS00129. GLYCOSYL_HYDROL_F31_1. 1 hit.
PS00707. GLYCOSYL_HYDROL_F31_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameAGLU_HORVU
AccessionPrimary (citable) accession number: Q43763
Entry history
Integrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: November 1, 1996
Last modified: October 16, 2013
This is version 59 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Glycosyl hydrolases

Classification of glycosyl hydrolase families and list of entries