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Entry version 94 (17 Jun 2020)
Sequence version 1 (01 Jun 1994)
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Protein

85 kDa surface antigen

Gene

GP85

Organism
Trypanosoma cruzi
Status
Reviewed-Annotation score:

Annotation score:3 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 transcript 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

Implicated in attachment and penetration of host cells, possibly via a neuraminidase activity.

<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 - Molecular functioni

GO - Biological processi

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
GH33, Glycoside Hydrolase Family 33

<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:
85 kDa surface antigen
<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:GP85
<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>OrganismiTrypanosoma cruzi
<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 identifieri5693 [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 lineageiEukaryotaDiscobaEuglenozoaKinetoplasteaMetakinetoplastinaTrypanosomatidaTrypanosomatidaeTrypanosomaSchizotrypanum

<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

GO - Cellular componenti

<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 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 denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 24Add BLAST24
<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_000002135825 – 69185 kDa surface antigenAdd BLAST667
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>PropeptideiPRO_0000021359692 – 714Removed in mature formSequence analysisAdd BLAST23

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi96N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi124N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi171N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi375N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi475N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi546N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi652N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position(s) and the type of covalently attached lipid group(s).<p><a href='/help/lipid' target='_top'>More...</a></p>Lipidationi691GPI-anchor amidated alanineSequence analysis1

Keywords - PTMi

Glycoprotein, GPI-anchor, Lipoprotein

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q03877

<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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati258 – 268BNR 1Add BLAST11
Repeati302 – 313BNR 2Add BLAST12

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi26 – 29Poly-Ala4
Compositional biasi150 – 153Poly-Thr4
Compositional biasi702 – 706Poly-Leu5

Keywords - Domaini

Repeat, Signal

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR013320, ConA-like_dom_sf
IPR011040, Sialidase
IPR026856, Sialidase_fam
IPR036278, Sialidase_sf
IPR008377, Sialidase_trypan
IPR021287, Trans-sialidase_CS

The PANTHER Classification System

More...
PANTHERi
PTHR10628, PTHR10628, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF13859, BNR_3, 1 hit
PF11052, Tr-sialidase_C, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01803, TCSIALIDASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF49899, SSF49899, 1 hit
SSF50939, SSF50939, 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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q03877-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSRRVFTSAA LHLLVVMWMC CGPCEAAAAS TGENSVNARQ PQRFDLFVPQ
60 70 80 90 100
KTVLLPRGGG NSEKKWDSFA SPSLVSAGGV IAAFAEGHLS SKNKDNKSTE
110 120 130 140 150
PSSDAVAWYI DSAWEWSTLV GEVNKSTWQA HTVLGKVDGK ERFDVVLRPT
160 170 180 190 200
TTTKDNKVFL LAGSSVASNV NGSWSHGGLK LKLVVGDVRK PTDSEQSGRI
210 220 230 240 250
NWGEVQSPLN ENSGAVQERK LTAFVASGGA GVLMEDGTIV FSLMARNEEE
260 270 280 290 300
DVYSMIIYSK DDGSTWALSN SVSSAKCVNP RITEWEGSLL MIVDCEDEQK
310 320 330 340 350
VYVSRDMGTT WTEAVGKLLG VWVNSGSGAS QDSSLHVDAL ITATIEGRRV
360 370 380 390 400
MLYTQRGNSL GENANPLYLW VTDNNRSFHV GPVGMDNAEK EELESALLYS
410 420 430 440 450
DGKLHLLQRR VSGEGSVISL SRLTEELKEI ESVLSTWAQK DIFFSSLSIP
460 470 480 490 500
TAGLVAVLSD AAGDGRWNDE YLCLNATVKN AVKVKDGFQL TESNSRVLWS
510 520 530 540 550
VNTRDNNLRH VFLSHDFTVV ATVIIQNVPS GKTSLLTATL ANTESNYTMG
560 570 580 590 600
LSYTADNKWE TIFKGDKKPT TESRPWEPKK EYQVALMLQG KKASVYIDGR
610 620 630 640 650
SLGEGEALLT DEKSLEFVHF CFGACVQESS PTAAQKTKVT VTNVFLYNRP
660 670 680 690 700
LNSTEMRAIK DRIPIPKRGP GSQVEGGTER RHIPRIEGVR ANAPVGSGLL
710
PLLLLLGLWV FAAL
Length:714
Mass (Da):77,875
Last modified:June 1, 1994 - 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:i6780D792790DC8AF
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
M64836 mRNA Translation: AAA30150.1
J04667 Unassigned DNA Translation: AAA03205.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S25236

<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
M64836 mRNA Translation: AAA30150.1
J04667 Unassigned DNA Translation: AAA03205.1
PIRiS25236

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

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SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein family/group databases

CAZyiGH33, Glycoside Hydrolase Family 33

Proteomic databases

PRIDEiQ03877

Family and domain databases

InterProiView protein in InterPro
IPR013320, ConA-like_dom_sf
IPR011040, Sialidase
IPR026856, Sialidase_fam
IPR036278, Sialidase_sf
IPR008377, Sialidase_trypan
IPR021287, Trans-sialidase_CS
PANTHERiPTHR10628, PTHR10628, 1 hit
PfamiView protein in Pfam
PF13859, BNR_3, 1 hit
PF11052, Tr-sialidase_C, 1 hit
PRINTSiPR01803, TCSIALIDASE
SUPFAMiSSF49899, SSF49899, 1 hit
SSF50939, SSF50939, 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 nameiGP85_TRYCR
<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: Q03877
<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: June 1, 1994
Last sequence update: June 1, 1994
Last modified: June 17, 2020
This is version 94 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)
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