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P31922

- SUS1_HORVU

UniProt

P31922 - SUS1_HORVU

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Protein
Sucrose synthase 1
Gene
SS1
Organism
Hordeum vulgare (Barley)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

Sucrose-cleaving enzyme that provides UDP-glucose and fructose for various metabolic pathways.1 Publication

Catalytic activityi

NDP-glucose + D-fructose = NDP + sucrose.1 Publication

Kineticsi

  1. KM=30 mM for Sucrose1 Publication
  2. KM=5 µM for UDP

GO - Molecular functioni

  1. sucrose synthase activity Source: UniProtKB-EC

GO - Biological processi

  1. biosynthetic process Source: InterPro
  2. response to cadmium ion Source: EnsemblPlants/Gramene
  3. response to cold Source: EnsemblPlants/Gramene
  4. response to flooding Source: EnsemblPlants/Gramene
  5. response to glucose Source: EnsemblPlants/Gramene
  6. response to hypoxia Source: EnsemblPlants/Gramene
  7. response to mannitol Source: EnsemblPlants/Gramene
  8. response to osmotic stress Source: EnsemblPlants/Gramene
  9. response to sorbitol Source: EnsemblPlants/Gramene
  10. response to sucrose Source: EnsemblPlants/Gramene
  11. response to water deprivation Source: EnsemblPlants/Gramene
  12. sucrose metabolic process Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Protein family/group databases

CAZyiGT4. Glycosyltransferase Family 4.

Names & Taxonomyi

Protein namesi
Recommended name:
Sucrose synthase 1 (EC:2.4.1.13)
Alternative name(s):
Sucrose-UDP glucosyltransferase 1
Gene namesi
Name:SS1
OrganismiHordeum vulgare (Barley)
Taxonomic identifieri4513 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaeBEP cladePooideaeTriticeaeHordeum

Organism-specific databases

GrameneiP31922.

Subcellular locationi

GO - Cellular componenti

  1. cytosol Source: EnsemblPlants/Gramene
  2. plasma membrane Source: EnsemblPlants/Gramene
  3. plasmodesma Source: EnsemblPlants/Gramene
  4. vacuole Source: EnsemblPlants/Gramene
Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 807807Sucrose synthase 1
PRO_0000204649Add
BLAST

Expressioni

Tissue specificityi

Highly expressed in developing endosperm and in roots and, at lower levels, in coleoptiles and aleurone. In 3 day old roots it is detected in cap cells and along the vascular strand, starting just after the meristemic region. In 9 day old leaves it is found in the phloem. In seeds it is distributed throughout the endosperm and also found in the assimilate-unloading tissues, the nucellar projection, the vascular area and at a high concentration in the chalazal region.1 Publication

Developmental stagei

Activity increases as seeds develop.1 Publication

Gene expression databases

GenevestigatoriP31922.

Interactioni

Subunit structurei

Forms homotetramers. In endosperm it forms both homotetramers and heterotetramers with SS2, all three possible heterotetramers are formed.1 Publication

Structurei

3D structure databases

ProteinModelPortaliP31922.

Family & Domainsi

Sequence similaritiesi

Family and domain databases

InterProiIPR001296. Glyco_trans_1.
IPR000368. Sucrose_synth.
IPR012820. Sucrose_synthase_pln/cyn.
[Graphical view]
PfamiPF00534. Glycos_transf_1. 1 hit.
PF00862. Sucrose_synth. 1 hit.
[Graphical view]
TIGRFAMsiTIGR02470. sucr_synth. 1 hit.

Sequencei

Sequence statusi: Complete.

P31922-1 [UniParc]FASTAAdd to Basket

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MAAKLTRLHS LRERLGATFS SHPNELIALF SRYVHQGKGM LQRHQLLAEF    50
DALFESDKEK YAPFEDILRA AQEAIVLPPW VALAIRPRTG VWDYIRVNVS 100
ELAVEELTVS EYLAFKEQLV DEHASRKFVL ELDFEPFNAS FPRPSMSKSY 150
GKGVQFLNRH LSSKLFQDKE SLYPLLNFLK AHNYKGTTMI LNDRIQSLRG 200
LQSALRKAEE YLVSIPEDTP SSEFNHRFQE LGLEKGWGDT AKRVHDTIHL 250
LLDLLEAPDP ASLEKFLGTI PMMFNVVILS PHGYFAQSNV LGYPDTGGQV 300
VYILDQVRAL ENEMLLRIKQ QGLDITPKIL IVTRLLPDAV GTTCGQRLEK 350
VIGTEHTDIL RVPFRTENGI RKWISRFDVW PYLETYTEDV ANELMREMQT 400
KPDLIIGNYS DGNLVATLLA HKLGVTQCTI AHALEKTKYP NSDIYLDKFD 450
SQYHFSCQFT ADLIAMNHTD FIITSTFQEI AGSKDSVGQY ESHIAFTLPD 500
LYRVVHGIDV FDPKFNIVSP GADMTVYFPY TETDKRLTAF HSEIEELLYS 550
DVENDEHKFV LKDRNKPIIF SMARLDRVKN MTGLVEMYGK NAHLKDLANL 600
VIVAGDHGKE SKDREEQAEF KRMYSLIEEY KLKGHIRWIS AQMNRVRNGE 650
LYRYICDTKG AFVQPAFYEA FGLTVIEAMT CGLPTIATCH GGPAEIIVDG 700
VSGLHIDPYH SDKAADILVN FFEKSTADPS YWDKISQGGL KRIYEKYTWK 750
LYSERLMTLT GVYGFWKYVS NLERRETRRY LEMFYALKYR SLAAAVPLAV 800
DGESSGN 807
Length:807
Mass (Da):92,211
Last modified:July 1, 1993 - v1
Checksum:iA863A8C876A060C8
GO

Sequence conflict

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti370 – 3701I → IL in CAA47264. 1 Publication
Sequence conflicti374 – 3741I → Y in CAA47264. 1 Publication
Sequence conflicti392 – 3932NE → KQ in CAA47264. 1 Publication

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X65871 mRNA. Translation: CAA46701.1.
X66728 mRNA. Translation: CAA47264.1.
PIRiS29242.
UniGeneiHv.639.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X65871 mRNA. Translation: CAA46701.1 .
X66728 mRNA. Translation: CAA47264.1 .
PIRi S29242.
UniGenei Hv.639.

3D structure databases

ProteinModelPortali P31922.
ModBasei Search...
MobiDBi Search...

Protein family/group databases

CAZyi GT4. Glycosyltransferase Family 4.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Organism-specific databases

Gramenei P31922.

Gene expression databases

Genevestigatori P31922.

Family and domain databases

InterProi IPR001296. Glyco_trans_1.
IPR000368. Sucrose_synth.
IPR012820. Sucrose_synthase_pln/cyn.
[Graphical view ]
Pfami PF00534. Glycos_transf_1. 1 hit.
PF00862. Sucrose_synth. 1 hit.
[Graphical view ]
TIGRFAMsi TIGR02470. sucr_synth. 1 hit.
ProtoNeti Search...

Publicationsi

  1. "Homologous sucrose synthase genes in barley (Hordeum vulgare) are located in chromosomes 7H (syn. 1) and 2H. Evidence for a gene translocation?"
    Sanchez de la Hoz P., Vicente-Carbajosa J., Mena M., Carbonero P.
    FEBS Lett. 310:46-50(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Strain: cv. Abyssinian 2231.
    Tissue: Endosperm.
  2. Brandt J., Thordal-Christensen H., Collinge D.B.
    Submitted (JUN-1992) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 223-807.
    Strain: cv. Pallas.
  3. "The spatial distribution of sucrose synthase isozymes in barley."
    Guerin J., Carbonero P.
    Plant Physiol. 114:55-62(1997) [PubMed] [Europe PMC] [Abstract]
    Cited for: BIOPHYSICOCHEMICAL PROPERTIES, SUBUNIT, TISSUE SPECIFICITY.
  4. "Sucrose synthase catalyzes the de novo production of ADPglucose linked to starch biosynthesis in heterotrophic tissues of plants."
    Baroja-Fernandez E., Munoz F.J., Saikusa T., Rodriguez-Lopez M., Akazawa T., Pozueta-Romero J.
    Plant Cell Physiol. 44:500-509(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, CATALYTIC ACTIVITY, DEVELOPMENTAL STAGE.

Entry informationi

Entry nameiSUS1_HORVU
AccessioniPrimary (citable) accession number: P31922
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 1, 1993
Last sequence update: July 1, 1993
Last modified: June 11, 2014
This is version 64 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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