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Entry version 160 (07 Oct 2020)
Sequence version 1 (01 Feb 1994)
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Protein

SPARC

Gene

ost-1

Organism
Caenorhabditis elegans
Status
Reviewed-Annotation score:

Annotation score:4 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

Has a high affinity for collagen. Affects nematode body morphology and mobility. Essential for C.elegans development and muscle function. The cysteine-rich region could have protease inhibitory activity or may provide the framework for a protein binding module. Probable role in skeletal morphogenesis.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position(s) of the calcium-binding region(s) within the protein. One common calcium-binding motif is the EF-hand, but other calcium-binding motifs also exist.<p><a href='/help/ca_bind' target='_top'>More...</a></p>Calcium bindingi237 – 248By similarityAdd BLAST12

<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

<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>Keywordsi

Molecular functionDevelopmental protein
LigandCalcium, Copper, Metal-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-CEL-114608, Platelet degranulation
R-CEL-381426, Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs)
R-CEL-8957275, Post-translational protein phosphorylation

<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:
SPARC
Alternative name(s):
Basement-membrane protein 40
Short name:
BM-40
Osteonectin
Short name:
ON
Secreted protein acidic and rich in cysteine
<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:ost-1
Synonyms:sparc
ORF Names:C44B12.2
<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>OrganismiCaenorhabditis elegans
<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 identifieri6239 [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 lineageiEukaryotaMetazoaEcdysozoaNematodaChromadoreaRhabditidaRhabditinaRhabditomorphaRhabditoideaRhabditidaePeloderinaeCaenorhabditis
<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
  • UP000001940 <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: Chromosome IV

Organism-specific databases

WormBase

More...
WormBasei
C44B12.2a ; CE08703 ; WBGene00003893 ; ost-1

<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

Keywords - Cellular componenti

Basement membrane, Extracellular matrix, Secreted

<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 – 16Sequence analysisAdd BLAST16
<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_000002031117 – 264SPARCAdd BLAST248

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi53 ↔ 64PROSITE-ProRule annotation
Disulfide bondi58 ↔ 74PROSITE-ProRule annotation
Disulfide bondi76 ↔ 110PROSITE-ProRule annotation
Disulfide bondi80 ↔ 103PROSITE-ProRule annotation
Disulfide bondi92 ↔ 135PROSITE-ProRule annotation
<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
Disulfide bondi141 ↔ 228PROSITE-ProRule annotation
Disulfide bondi236 ↔ 252PROSITE-ProRule annotation
Glycosylationi243N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P34714

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

More...
PaxDbi
P34714

PeptideAtlas

More...
PeptideAtlasi
P34714

<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

Expressed by body wall and sex muscle cells. Probable association with basement membranes.1 Publication

<p>This subsection of the 'Expression' section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified 'at the protein level'.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

First expressed in unhatched larvae; continuous throughout subsequent larval stages and in adults.

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
WBGene00003893, Expressed in multi-cellular organism and 5 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
P34714, baseline and differential

<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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
42089, 7 interactors

STRING: functional protein association networks

More...
STRINGi
6239.C44B12.2a

<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
P34714

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>Domaini52 – 74Follistatin-likeAdd BLAST23
Domaini68 – 137Kazal-likePROSITE-ProRule annotationAdd BLAST70
Domaini224 – 259EF-handAdd BLAST36

<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 SPARC family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG4004, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00510000046787

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_047416_1_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P34714

Identification of Orthologs from Complete Genome Data

More...
OMAi
LVEWGAC

Database of Orthologous Groups

More...
OrthoDBi
1528521at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P34714

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011992, EF-hand-dom_pair
IPR018247, EF_Hand_1_Ca_BS
IPR003645, Fol_N
IPR015369, Follistatin/Osteonectin_EGF
IPR002350, Kazal_dom
IPR036058, Kazal_dom_sf
IPR001999, Osteonectin_CS
IPR019577, SPARC/Testican_Ca-bd-dom

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF09289, FOLN, 1 hit
PF07648, Kazal_2, 1 hit
PF10591, SPARC_Ca_bdg, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00274, FOLN, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF100895, SSF100895, 1 hit
SSF47473, SSF47473, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00018, EF_HAND_1, 1 hit
PS51465, KAZAL_2, 1 hit
PS00612, OSTEONECTIN_1, 1 hit
PS00613, OSTEONECTIN_2, 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>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.

<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.

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

P34714-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRYALAACLL LLAASSFVDA KKKKIADDEL GELLDNIDAD EEKKSVEPAK
60 70 80 90 100
NPCEDHQCGW GKECVVGKKG EPTCECISKC PELDGDPMDK VCANNNQTFT
110 120 130 140 150
SLCDLYRERC LCKRKSKECS KAFNAKVHLE YLGECKKLDE CTEEHMAQFP
160 170 180 190 200
ERMADWLFQV MKELKKRREL HKLEWEELLS EAENDDEKKH VYPVIWKFCE
210 220 230 240 250
LDTKPHDKSV SHHELIPITA PVIPMESCIK PFLEGCDANN DGNISIKEWG
260
KCLGLKEGEI QERC
Length:264
Mass (Da):30,173
Last modified:February 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:i2F952056B466E18F
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
U4PF73U4PF73_CAEEL
Kazal-like domain-containing protei...
ost-1 C44B12.2, CELE_C44B12.2
177Annotation 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>

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
L21758 Unassigned DNA Translation: AAA16827.1
FO080852 Genomic DNA Translation: CCD67228.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A47737

NCBI Reference Sequences

More...
RefSeqi
NP_500039.1, NM_067638.6

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
C44B12.2a.1; C44B12.2a.1; WBGene00003893

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
176931

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
cel:CELE_C44B12.2

UCSC genome browser

More...
UCSCi
C44B12.2, c. elegans

<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
L21758 Unassigned DNA Translation: AAA16827.1
FO080852 Genomic DNA Translation: CCD67228.1
PIRiA47737
RefSeqiNP_500039.1, NM_067638.6

3D structure databases

SMRiP34714
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi42089, 7 interactors
STRINGi6239.C44B12.2a

Proteomic databases

EPDiP34714
PaxDbiP34714
PeptideAtlasiP34714

Genome annotation databases

EnsemblMetazoaiC44B12.2a.1; C44B12.2a.1; WBGene00003893
GeneIDi176931
KEGGicel:CELE_C44B12.2
UCSCiC44B12.2, c. elegans

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
176931
WormBaseiC44B12.2a ; CE08703 ; WBGene00003893 ; ost-1

Phylogenomic databases

eggNOGiKOG4004, Eukaryota
GeneTreeiENSGT00510000046787
HOGENOMiCLU_047416_1_0_1
InParanoidiP34714
OMAiLVEWGAC
OrthoDBi1528521at2759
PhylomeDBiP34714

Enzyme and pathway databases

ReactomeiR-CEL-114608, Platelet degranulation
R-CEL-381426, Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs)
R-CEL-8957275, Post-translational protein phosphorylation

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P34714

Gene expression databases

BgeeiWBGene00003893, Expressed in multi-cellular organism and 5 other tissues
ExpressionAtlasiP34714, baseline and differential

Family and domain databases

InterProiView protein in InterPro
IPR011992, EF-hand-dom_pair
IPR018247, EF_Hand_1_Ca_BS
IPR003645, Fol_N
IPR015369, Follistatin/Osteonectin_EGF
IPR002350, Kazal_dom
IPR036058, Kazal_dom_sf
IPR001999, Osteonectin_CS
IPR019577, SPARC/Testican_Ca-bd-dom
PfamiView protein in Pfam
PF09289, FOLN, 1 hit
PF07648, Kazal_2, 1 hit
PF10591, SPARC_Ca_bdg, 1 hit
SMARTiView protein in SMART
SM00274, FOLN, 1 hit
SUPFAMiSSF100895, SSF100895, 1 hit
SSF47473, SSF47473, 1 hit
PROSITEiView protein in PROSITE
PS00018, EF_HAND_1, 1 hit
PS51465, KAZAL_2, 1 hit
PS00612, OSTEONECTIN_1, 1 hit
PS00613, OSTEONECTIN_2, 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 nameiSPRC_CAEEL
<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: P34714
<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: February 1, 1994
Last sequence update: February 1, 1994
Last modified: October 7, 2020
This is version 160 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 programCaenorhabditis annotation project

<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. Caenorhabditis elegans
    Caenorhabditis elegans: entries, gene names and cross-references to WormBase
  2. SIMILARITY comments
    Index of protein domains and families
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