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Entry version 29 (07 Oct 2020)
Sequence version 1 (23 Jan 2007)
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Protein

UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase stabilizing protein GtfB

Gene

gtfB

Organism
Streptococcus parasanguinis
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Required for the polymorphic O-glycosylation of the serine-rich repeat protein Fap1. A stabilizing protein that is part of the accessory SecA2/SecY2 system specifically required to export Fap1, a serine-rich fimbrial adhesin encoded upstream in the same operon. The GtfA-GtfB (Gtf1-Gtf2 in this bacteria) complex adds GlcNAc from UDP-GlcNAc to Fap1, attaching the first sugar residue. Cannot use not UDP-Glc as substrate. Stabilizes the glycosylation activity of GtfA, causing it to partially localize to the cellular membrane where it is more protease resistant.3 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: protein glycosylation

This protein is involved in the pathway protein glycosylation, which is part of Protein modification.UniRule annotation3 Publications
View all proteins of this organism that are known to be involved in the pathway protein glycosylation and in Protein modification.

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Biological processi

  • protein glycosylation Source: UniProtKB-UniPathway
  • regulation of protein stability Source: UniProtKB

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00378

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
GT8, Glycosyltransferase Family 8

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase stabilizing protein GtfBUniRule annotation
Alternative name(s):
Glycosyltransferase chaperone Gtf2
Glycosyltransferase stabilizing protein GtfBUniRule annotation
Glycosyltransferase-stabilizing protein Gtf21 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:gtfBUniRule annotation
Synonyms:gtf21 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiStreptococcus parasanguinis
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri1318 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywords - Cellular componenti

Cell membrane, Membrane

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

No glycosylation of serine-rich fimbrial adhesin Fap1. The unglycosylated version of Fap1 accumulates which is larger than the wild-type protein. In a deletion mutant, GtfA (Gtf1) is less stable in vivo, no longer associates with the cell membrane and has an increased protease susceptibility. Biofilm formation decreases. In a double gftA/gtfB (gtf1/gtf2) mutant, there is no further affect on glycosylation but biofilm formation is further decreased.2 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi35 – 38Missing : Loss of Fap1 glycosylation, decreased association of GtfA with the cell membrane. Reduced GtfB levels. 1 Publication4
Mutagenesisi57 – 60Missing : Loss of Fap1 glycosylation, reduced GtfA-GtfB interaction, about 18% Fap1 glycosylation, loss of GtfA and Fap1 stability in vivo, decreased association of GtfA with the cell membrane. 1 Publication4
Mutagenesisi61 – 64Missing : Loss of Fap1 glycosylation, reduced GtfA-GtfB interaction, about 20% Fap1 glycosylation, decreased association of GtfA with the cell membrane. 1 Publication4
Mutagenesisi148 – 151Missing : Loss of Fap1 glycosylation, decreased association of GtfA with the cell membrane. Reduced GtfB levels. 1 Publication4
Mutagenesisi159 – 162Missing : Loss of Fap1 glycosylation, decreased association of GtfA with the cell membrane. Reduced GtfB levels. 1 Publication4
Mutagenesisi315 – 318Missing : Wild-type Fap1 glycosylation, no reduction in GtfA-GtfB interaction, about 69% Fap1 glycosylation. 1 Publication4

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004186421 – 439UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase stabilizing protein GtfBAdd BLAST439

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts with glycosyltransferase GtfA (Gtf2); probably forms a heterotetramer with 2 subunits each of GtfA and GtfB. Part of the accessory SecA2/SecY2 protein translocation apparatus.

UniRule annotation2 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Protein-protein interaction databases

Protein interaction database and analysis system

More...
IntActi
A1C3M0, 1 interactor

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
A1C3M0

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the GtfB family.Curated

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_01473, GtfB, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR014268, GtfB

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR02919, TIGR02919, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

A1C3M0-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MIRLFEWLTQ ESLDLHYSLE ESGIHGTSIV LNDDGFLPEG IISPYTFFCE
60 70 80 90 100
VEMDGSPLYF NQLEVPYLWQ ITGTNIEGEI WNRSSKRGVI HYHEPKYLRF
110 120 130 140 150
VQSVDWLYPD GSIYMTDHYN KYGWAFARTY FFSDQQVSHK KYYTKSGQEV
160 170 180 190 200
LSENILTGDI LLNWKGKVYH FTKKVDFFLF YFKKSGLDLS SIWYNSLGMP
210 220 230 240 250
FLISYYLGGE GRDILFWQEN LADQLPGNMQ IIFSGRTSRT KKVIVQDRSV
260 270 280 290 300
YKKLLHLVEE KNKEMISFLN IIYPKLRENY SRKEILIVTN SDQIEGIETL
310 320 330 340 350
TDNLSAYTFH IGALTSMSDK LQNIGQKENV LLYPNMSPKT MLDLLEQCDI
360 370 380 390 400
YLDINHGNEV LSIVRLAFER SLLILAYDNT VHSPIFHHES GIFNHSKPQT
410 420 430
LSDWLLNLDD YSQTVSCWRS DLFPMTYRDY KQVLVSNVD
Length:439
Mass (Da):51,363
Last modified:January 23, 2007 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i25FFBBF4D820C0FD
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
DQ990875 Genomic DNA Translation: ABL74005.1

NCBI Reference Sequences

More...
RefSeqi
WP_014713988.1, NZ_JYPA01000019.1

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
DQ990875 Genomic DNA Translation: ABL74005.1
RefSeqiWP_014713988.1, NZ_JYPA01000019.1

3D structure databases

SMRiA1C3M0
ModBaseiSearch...

Protein-protein interaction databases

IntActiA1C3M0, 1 interactor

Protein family/group databases

CAZyiGT8, Glycosyltransferase Family 8

Enzyme and pathway databases

UniPathwayiUPA00378

Family and domain databases

HAMAPiMF_01473, GtfB, 1 hit
InterProiView protein in InterPro
IPR014268, GtfB
TIGRFAMsiTIGR02919, TIGR02919, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiGTFB_STRPA
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: A1C3M0
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 5, 2012
Last sequence update: January 23, 2007
Last modified: October 7, 2020
This is version 29 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Direct protein sequencing

Documents

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