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Entry version 123 (07 Apr 2021)
Sequence version 1 (01 Dec 2001)
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Protein

Synaptotagmin-8

Gene

Syt8

Organism
Rattus norvegicus (Rat)
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 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

Involved in the trafficking and exocytosis of secretory vesicles in non-neuronal tissues. Mediates Ca2+-regulation of exocytosis acrosomal reaction in sperm. May mediate Ca2+-regulation of exocytosis in insulin secreted cells (By similarity).

By similarity1 Publication

<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

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-RNO-8856825, Cargo recognition for clathrin-mediated endocytosis
R-RNO-8856828, Clathrin-mediated endocytosis

<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:
Synaptotagmin-8
Alternative name(s):
Synaptotagmin VIII
Short name:
SytVIII
<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:Syt8
<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>OrganismiRattus norvegicus (Rat)
<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 identifieri10116 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002494 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unplaced

Organism-specific databases

Rat genome database

More...
RGDi
68399, Syt8

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 44ExtracellularSequence analysisAdd BLAST44
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei45 – 65Helical; Signal-anchor for type III membrane proteinSequence analysisAdd BLAST21
Topological domaini66 – 395CytoplasmicSequence analysisAdd BLAST330

<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, Cytoplasmic vesicle, 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 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_00001839611 – 395Synaptotagmin-8Add BLAST395

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q925B4

PRoteomics IDEntifications database

More...
PRIDEi
Q925B4

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Ubiquitous. Strongly expressed in heart, kidney, cerebral cortex, pancreas, and many insulin-secreting cells; lower expression in spleen. Broadly distributed in kidney.2 Publications

<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

Homodimer or homooligomer. Homodimerization and homooligomerization do not depend on Ca2+.

Interacts with SYNCRIP isoform 2 C-terminus. Binds inositol 1,3,4,5-tetrakisphosphate (IP4). Binds to AP2 in a Ca2+-independent manner.

Interacts with STX1A, STX1B and STX2; the interaction is Ca2+-dependent (By similarity).

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
10116.ENSRNOP00000027454

<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

More...
SMRi
Q925B4

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini113 – 229C2 1PROSITE-ProRule annotationAdd BLAST117
Domaini241 – 370C2 2PROSITE-ProRule annotationAdd BLAST130

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The first C2 domain/C2A does not mediate Ca2+-dependent phospholipid binding.By similarity
The second C2 domain/C2B is responsible for SYNCRIP and inositol 1,3,4,5-tetrakisphosphate (IP4)-binding.By similarity

<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 synaptotagmin family.Curated

Keywords - Domaini

Repeat, Signal-anchor, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1028, Eukaryota

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q925B4

Database of Orthologous Groups

More...
OrthoDBi
925064at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q925B4

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.60.40.150, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000008, C2_dom
IPR035892, C2_domain_sf
IPR001565, Synaptotagmin
IPR030540, SYT8

The PANTHER Classification System

More...
PANTHERi
PTHR10024:SF249, PTHR10024:SF249, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00168, C2, 2 hits

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00399, SYNAPTOTAGMN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00239, C2, 2 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50004, C2, 2 hits

<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>Sequence (1+)i

<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.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

Q925B4-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQADRSMKMG HVSNPLSTSA PVDATAGPNL IPDLITKIPW PRWILFIAIL
60 70 80 90 100
AAGVLLVSCL LCVICYCCHR QRHRKQPKDK ETVGLGSARN STTTHLVQPD
110 120 130 140 150
VECLEPCSGG DQPWGQLLLS LEYDFGSQEI RVGLRQAKNL KAEGTADPYA
160 170 180 190 200
RVSVSTQAGR RHETKVHRGT LCPMFEETCC FLVPPAELPK ATLKVQLLDF
210 220 230 240 250
KRFSEHEPLG ELQLPLGTVD LQHVLESWYQ LGPPGSTESE QMGELCFSLR
260 270 280 290 300
YVPSSGRLTV VILEARGLNP GLAEAYVKVQ LILNQRKWKK NKTSSKKGTT
310 320 330 340 350
NPYFNEAFVF LVPVSQLQSM DLVLAVWARG LQLLAEPVGK VLLGPRASGQ
360 370 380 390
PLQHWADMLA HARRPIAQWH HLRSPREVDR ALALQPRLPL LRPRS
Length:395
Mass (Da):43,980
Last modified:December 1, 2001 - 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:iB75334EF829E2676
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
F1LQ42F1LQ42_RAT
Synaptotagmin-8
Syt8
387Annotation score:

Annotation score:1 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>

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAA87728 differs from that shown. Reason: Erroneous initiation. Truncated N-terminus.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti102E → D in AAA87728 (PubMed:7791877).Curated1
Sequence conflicti222Q → R in AAA87728 (PubMed:7791877).Curated1
Sequence conflicti320M → V in AAK56957 (Ref. 1) Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AF375462 mRNA Translation: AAK56957.1
AF375467 mRNA Translation: AAK56962.1
U20110 Genomic DNA Translation: AAA87728.1 Different initiation.

Protein sequence database of the Protein Information Resource

More...
PIRi
S58403

NCBI Reference Sequences

More...
RefSeqi
NP_445777.1, NM_053325.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
60566

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
rno:60566

UCSC genome browser

More...
UCSCi
RGD:68399, rat

<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
AF375462 mRNA Translation: AAK56957.1
AF375467 mRNA Translation: AAK56962.1
U20110 Genomic DNA Translation: AAA87728.1 Different initiation.
PIRiS58403
RefSeqiNP_445777.1, NM_053325.1

3D structure databases

SMRiQ925B4
ModBaseiSearch...

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000027454

Proteomic databases

PaxDbiQ925B4
PRIDEiQ925B4

Genome annotation databases

GeneIDi60566
KEGGirno:60566
UCSCiRGD:68399, rat

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
90019
RGDi68399, Syt8

Phylogenomic databases

eggNOGiKOG1028, Eukaryota
InParanoidiQ925B4
OrthoDBi925064at2759
PhylomeDBiQ925B4

Enzyme and pathway databases

ReactomeiR-RNO-8856825, Cargo recognition for clathrin-mediated endocytosis
R-RNO-8856828, Clathrin-mediated endocytosis

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q925B4

Family and domain databases

Gene3Di2.60.40.150, 2 hits
InterProiView protein in InterPro
IPR000008, C2_dom
IPR035892, C2_domain_sf
IPR001565, Synaptotagmin
IPR030540, SYT8
PANTHERiPTHR10024:SF249, PTHR10024:SF249, 1 hit
PfamiView protein in Pfam
PF00168, C2, 2 hits
PRINTSiPR00399, SYNAPTOTAGMN
SMARTiView protein in SMART
SM00239, C2, 2 hits
PROSITEiView protein in PROSITE
PS50004, C2, 2 hits

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 nameiSYT8_RAT
<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: Q925B4
Secondary accession number(s): Q62749, Q925B9
<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: November 28, 2003
Last sequence update: December 1, 2001
Last modified: April 7, 2021
This is version 123 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 programChordata 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

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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