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Q29121

- GALT1_PIG

UniProt

Q29121 - GALT1_PIG

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Protein
Polypeptide N-acetylgalactosaminyltransferase 1
Gene
GALNT1
Organism
Sus scrofa (Pig)
Status
Reviewed - Annotation score: 4 out of 5 - Experimental evidence at transcript leveli

Functioni

Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Has a broad spectrum of substrates for peptides such as EA2, Muc5AC, Muc1a, Muc1b and Muc7 By similarity.

Catalytic activityi

UDP-N-acetyl-alpha-D-galactosamine + polypeptide = UDP + N-acetyl-alpha-D-galactosaminyl-polypeptide.

Cofactori

Manganese By similarity.

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei156 – 1561Substrate By similarity
Binding sitei186 – 1861Substrate By similarity
Metal bindingi209 – 2091Manganese By similarity
Metal bindingi211 – 2111Manganese By similarity
Binding sitei316 – 3161Substrate By similarity
Metal bindingi344 – 3441Manganese By similarity
Binding sitei347 – 3471Substrate By similarity
Binding sitei352 – 3521Substrate By similarity

GO - Molecular functioni

  1. manganese ion binding Source: UniProtKB
  2. polypeptide N-acetylgalactosaminyltransferase activity Source: UniProtKB

GO - Biological processi

  1. protein O-linked glycosylation Source: UniProtKB
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Ligandi

Lectin, Manganese, Metal-binding

Enzyme and pathway databases

BRENDAi2.4.1.41. 6170.
UniPathwayiUPA00378.

Protein family/group databases

CAZyiCBM13. Carbohydrate-Binding Module Family 13.
GT27. Glycosyltransferase Family 27.

Names & Taxonomyi

Protein namesi
Recommended name:
Polypeptide N-acetylgalactosaminyltransferase 1 (EC:2.4.1.41)
Alternative name(s):
Polypeptide GalNAc transferase 1
Short name:
GalNAc-T1
Short name:
pp-GaNTase 1
Protein-UDP acetylgalactosaminyltransferase 1
UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 1
Cleaved into the following chain:
Gene namesi
Name:GALNT1
OrganismiSus scrofa (Pig)
Taxonomic identifieri9823 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaSuinaSuidaeSus
ProteomesiUP000008227: Unplaced

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 88Cytoplasmic Reviewed prediction
Transmembranei9 – 2820Helical; Signal-anchor for type II membrane protein; Reviewed prediction
Add
BLAST
Topological domaini29 – 559531Lumenal Reviewed prediction
Add
BLAST

GO - Cellular componenti

  1. Golgi cisterna membrane Source: UniProtKB-SubCell
  2. extracellular region Source: UniProtKB-SubCell
  3. integral component of membrane Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Golgi apparatus, Membrane, Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 559559Polypeptide N-acetylgalactosaminyltransferase 1
PRO_0000223389Add
BLAST
Chaini41 – 559519Polypeptide N-acetylgalactosaminyltransferase 1 soluble form By similarity
PRO_0000012261Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi95 – 951N-linked (GlcNAc...) Reviewed prediction
Disulfide bondi106 ↔ 339 By similarity
Disulfide bondi330 ↔ 408 By similarity
Disulfide bondi442 ↔ 459 By similarity
Disulfide bondi482 ↔ 497 By similarity
Disulfide bondi523 ↔ 540 By similarity
Glycosylationi552 – 5521N-linked (GlcNAc...) Reviewed prediction

Keywords - PTMi

Disulfide bond, Glycoprotein

Interactioni

Protein-protein interaction databases

STRINGi9823.ENSSSCP00000004051.

Structurei

3D structure databases

ProteinModelPortaliQ29121.
SMRiQ29121. Positions 95-553.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini429 – 551123Ricin B-type lectin
Add
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni115 – 225111Catalytic subdomain A
Add
BLAST
Regioni285 – 34763Catalytic subdomain B
Add
BLAST

Domaini

There are two conserved domains in the glycosyltransferase region: the N-terminal domain (domain A, also called GT1 motif), which is probably involved in manganese coordination and substrate binding and the C-terminal domain (domain B, also called Gal/GalNAc-T motif), which is probably involved in catalytic reaction and UDP-Gal binding By similarity.
The ricin B-type lectin domain directs the glycopeptide specificity. It is required in the glycopeptide specificity of enzyme activity but not for activity with naked peptide substrates, suggesting that it triggers the catalytic domain to act on GalNAc-glycopeptide substrates By similarity.

Sequence similaritiesi

Keywords - Domaini

Signal-anchor, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG239675.
HOGENOMiHOG000038227.
HOVERGENiHBG051699.

Family and domain databases

Gene3Di3.90.550.10. 1 hit.
InterProiIPR001173. Glyco_trans_2-like.
IPR029044. Nucleotide-diphossugar_trans.
IPR000772. Ricin_B_lectin.
[Graphical view]
PfamiPF00535. Glycos_transf_2. 1 hit.
PF00652. Ricin_B_lectin. 1 hit.
[Graphical view]
SMARTiSM00458. RICIN. 1 hit.
[Graphical view]
SUPFAMiSSF50370. SSF50370. 1 hit.
SSF53448. SSF53448. 1 hit.
PROSITEiPS50231. RICIN_B_LECTIN. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q29121-1 [UniParc]FASTAAdd to Basket

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MRKFAYCKVV LATSLIWVLL DMFLLLYFSE CNKCDEKKER GLPAGDVLEP    50
VQKPHEGPGE MGKPVVIPKE DQDKMKEMFK INQFNLMASE MIALNRSLPD 100
VRLEGCKTKV YPDNLPTTSV VIVFHNEAWS TLLRTVHSVI NRSPRHMLEE 150
IVLVDDASER DFLKRPLESY VKKLKVPVHV IRMEQRSGLI RARLKGAAVS 200
KGQVITFLDA HCECTVGWLE PLLARIKHDR KTVVCPIIDV ISDDTFEYMA 250
GSDMTYGGFN WKLNFRWYPV PQREMDRRKG DRTLPVRTPT MAGGLFSIDR 300
DYFQEIGTYD AGMDIWGGEN LEISFRIWQC GGTLEIVTCS HVGHVFRKAT 350
PYTFPGGTGQ IINKNNRRLA EVWMDEFKTF FYIISPGVTK VDYGDISSRL 400
GLRHKLQCRP FSWYLENIYP DSQIPRHYSS LGEIRNVETN QCLDNMARKE 450
NEKVGIFNCH GMGGNQVFSY TANKEIRTDD LCLDVSKLNG PVTMLKCHHL 500
KGNQLWEYDP VKLTLQHVNS NQCLDKATEE DSQVPSIRDC SGSRSQQWLL 550
RNVTLPEIF 559
Length:559
Mass (Da):64,119
Last modified:November 1, 1996 - v1
Checksum:i68C2D261A51684C6
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
D85389 mRNA. Translation: BAA12800.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
D85389 mRNA. Translation: BAA12800.1 .

3D structure databases

ProteinModelPortali Q29121.
SMRi Q29121. Positions 95-553.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 9823.ENSSSCP00000004051.

Protein family/group databases

CAZyi CBM13. Carbohydrate-Binding Module Family 13.
GT27. Glycosyltransferase Family 27.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Phylogenomic databases

eggNOGi NOG239675.
HOGENOMi HOG000038227.
HOVERGENi HBG051699.

Enzyme and pathway databases

UniPathwayi UPA00378 .
BRENDAi 2.4.1.41. 6170.

Family and domain databases

Gene3Di 3.90.550.10. 1 hit.
InterProi IPR001173. Glyco_trans_2-like.
IPR029044. Nucleotide-diphossugar_trans.
IPR000772. Ricin_B_lectin.
[Graphical view ]
Pfami PF00535. Glycos_transf_2. 1 hit.
PF00652. Ricin_B_lectin. 1 hit.
[Graphical view ]
SMARTi SM00458. RICIN. 1 hit.
[Graphical view ]
SUPFAMi SSF50370. SSF50370. 1 hit.
SSF53448. SSF53448. 1 hit.
PROSITEi PS50231. RICIN_B_LECTIN. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Cloning and expression of a porcine UDP-GalNAc: polypeptide N-acetylgalactosaminyl transferase."
    Yoshida A., Hara T., Ikenaga H., Takeuchi M.
    Glycoconj. J. 12:824-828(1995) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Tissue: Lung.

Entry informationi

Entry nameiGALT1_PIG
AccessioniPrimary (citable) accession number: Q29121
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 27, 2001
Last sequence update: November 1, 1996
Last modified: June 11, 2014
This is version 105 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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