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Q1M0V6 (GCNT3_BUBBU) Reviewed, UniProtKB/Swiss-Prot

Last modified July 9, 2014. Version 32. 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:
Beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase 3

EC=2.4.1.102
EC=2.4.1.150
Alternative name(s):
C2GnT-mucin type
Short name=C2GnT-M
Gene names
Name:GCNT3
OrganismBubalus bubalis (Domestic water buffalo)
Taxonomic identifier89462 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBubalus

Protein attributes

Sequence length440 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Glycosyltransferase that can synthesize all known mucin beta 6 N-acetylglucosaminides. Mediates core 2 and core 4 O-glycan branching, 2 important steps in mucin-type biosynthesis. Has also I-branching enzyme activity by converting linear into branched poly-N-acetyllactosaminoglycans, leading to introduce the blood group I antigen during embryonic development By similarity.

Catalytic activity

UDP-N-acetyl-D-glucosamine + beta-D-galactosyl-1,3-N-acetyl-D-galactosaminyl-R = UDP + beta-D-galactosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R.

UDP-N-acetyl-D-glucosamine + beta-D-galactosyl-1,4-N-acetyl-D-glucosaminyl-R = UDP + N-acetyl-beta-D-glucosaminyl-1,6-beta-D-galactosyl-1,4-N-acetyl-D-glucosaminyl-R.

Pathway

Protein modification; protein glycosylation.

Subcellular location

Golgi apparatus membrane; Single-pass type II membrane protein By similarity.

Post-translational modification

N-glycosylated By similarity.

Sequence similarities

Belongs to the glycosyltransferase 14 family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 440440Beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase 3
PRO_0000288544

Regions

Topological domain1 – 1212Cytoplasmic Potential
Transmembrane13 – 3018Helical; Signal-anchor for type II membrane protein; Potential
Topological domain31 – 440410Lumenal Potential

Amino acid modifications

Glycosylation1081N-linked (GlcNAc...) Potential
Disulfide bond73 ↔ 230 By similarity
Disulfide bond164 ↔ 384 By similarity
Disulfide bond185 ↔ 212 By similarity
Disulfide bond393 ↔ 425 By similarity

Natural variations

Natural variant1151R → Q in strain: River-type.

Sequences

Sequence LengthMass (Da)Tools
Q1M0V6 [UniParc].

Last modified May 30, 2006. Version 1.
Checksum: 8F25E256DC7A5291

FASTA44051,008
        10         20         30         40         50         60 
MKMTGWKKKL CRGHHLWALG CYMLLAVVAL RLSLRLKCDV DSLDLESRDF QSQRCRDVLY 

        70         80         90        100        110        120 
KNLKLPAKRS INCSGITRGD QEAVVQALLD NLEVKKKRLP FTDTYYLNIT RDCERFKAQR 

       130        140        150        160        170        180 
KFIQFPLSKE ELDFPIAYSM VVHEKIENFE RLLRAVYAPQ NIYCVHVDVK SPEAFKEAVK 

       190        200        210        220        230        240 
AIISCFPNVF MASKLVPVVY ASWSRVQADL NCMEDLLQSS VPWKYLLNTC GTDFPIKTNA 

       250        260        270        280        290        300 
EMVLALKMLN GKNSMESEIP SEYKKNRWKY RYEVTDRLYL TSKMKDPPPD NLPMFTGNAY 

       310        320        330        340        350        360 
FVASRAFVQH VLENPKSQRL IEWVKDTYSP DEHLWATLQR APWMPGSVPY HPKYHISDMT 

       370        380        390        400        410        420 
AIARLVKWQN HEGDVSMGAP YAPCSGIHQR AICIYGAGDL HWILQNHHLL ANKFDPRVDD 

       430        440 
NVLQCLEEYL RHKAIYGTEL 

« Hide

References

[1]"Phylogeographical analysis of bovine herpesvirus 4: demonstration that inter-strain recombination events took place after acquisition of the Bo17 gene from an ancestor of the African buffalo."
Dewals B., Markine-Goriaynoff N., de Fays K., Minner F., Daix V., Vercammen F., Gaillard C., Sharp P.M., Vanderplasschen A.
Submitted (DEC-2004) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Strain: Murrah, River-type and Swamp-type.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AY847312 Genomic DNA. Translation: AAY21831.1.
AY847313 Genomic DNA. Translation: AAY21832.1.
AY847321 Genomic DNA. Translation: AAY21840.1.
RefSeqXP_006072400.1. XM_006072338.1.

3D structure databases

ProteinModelPortalQ1M0V6.
SMRQ1M0V6. Positions 70-435.
ModBaseSearch...
MobiDBSearch...

Protein family/group databases

CAZyGT14. Glycosyltransferase Family 14.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID102398238.

Phylogenomic databases

HOVERGENHBG051711.

Enzyme and pathway databases

UniPathwayUPA00378.

Family and domain databases

InterProIPR003406. Glyco_trans_14.
[Graphical view]
PfamPF02485. Branch. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameGCNT3_BUBBU
AccessionPrimary (citable) accession number: Q1M0V6
Secondary accession number(s): Q1M0W4
Entry history
Integrated into UniProtKB/Swiss-Prot: May 29, 2007
Last sequence update: May 30, 2006
Last modified: July 9, 2014
This is version 32 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways