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Entry version 105 (08 May 2019)
Sequence version 2 (10 Jul 2007)
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Protein

SPARC

Gene

SPARC

Organism
Sus scrofa (Pig)
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 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

Appears to regulate cell growth through interactions with the extracellular matrix and cytokines. Binds calcium and copper, several types of collagen, albumin, thrombospondin, PDGF and cell membranes. There are two calcium binding sites; an acidic domain that binds 5 to 8 Ca2+ with a low affinity and an EF-hand loop that binds a Ca2+ ion with a high affinity (By similarity).By similarity

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ 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 bindingi271 – 282By 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

<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

LigandCalcium, Copper, Metal-binding

<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_and_taxonomy_section">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_and_taxonomy_section">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:SPARC
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiSus scrofa (Pig)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri9823 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaSuinaSuidaeSus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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
  • UP000008227 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

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 – 172 PublicationsAdd BLAST17
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000016059018 – 300SPARCAdd BLAST283

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 bondi69 ↔ 80PROSITE-ProRule annotation
Disulfide bondi74 ↔ 90PROSITE-ProRule annotation
Disulfide bondi92 ↔ 127PROSITE-ProRule annotation
Disulfide bondi98 ↔ 120PROSITE-ProRule annotation
Disulfide bondi109 ↔ 146PROSITE-ProRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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>Glycosylationi113N-linked (GlcNAc...) asparagineCurated1
Disulfide bondi152 ↔ 262PROSITE-ProRule annotation
Disulfide bondi270 ↔ 286PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

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

More...
PaxDbi
P20112

PeptideAtlas

More...
PeptideAtlasi
P20112

PRoteomics IDEntifications database

More...
PRIDEi
P20112

<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

STRING: functional protein association networks

More...
STRINGi
9823.ENSSSCP00000018098

<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
P20112

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
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_and_domains_section">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>Domaini68 – 90Follistatin-likeAdd BLAST23
Domaini86 – 148Kazal-likePROSITE-ProRule annotationAdd BLAST63
Domaini258 – 293EF-handAdd BLAST36

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 biasi22 – 66Asp/Glu-rich (acidic; binds calcium)Add BLAST45

<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
ENOG41101WW LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000088654

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P20112

Database of Orthologous Groups

More...
OrthoDBi
1528521at2759

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
IPR037641 SPARC
IPR019577 SPARC/Testican_Ca-bd-dom

The PANTHER Classification System

More...
PANTHERi
PTHR13866:SF6 PTHR13866:SF6, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF09289 FOLN, 1 hit
PF00050 Kazal_1, 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
SM00280 KAZAL, 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_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

P20112-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRAWIFFLLC LAGKALAAPQ QEALPDETEV VEETVAEVPV GANPVQVEVG
60 70 80 90 100
EFDDGAEEAE EEVVAENPCQ NHHCKHGKVC ELDENNSPMC VCQDPTSCPA
110 120 130 140 150
PIGEFEKVCS NDNKTFDSSC HFFATKCTLE GTKKGHKLHL DYIGPCKYIP
160 170 180 190 200
PCLDSELTEF PLRMRDWLKN VLVTLYERDE NNNLLTEKQK LRVKKIHENE
210 220 230 240 250
KRLEAGDHPV ELLARDFEKN YNMYIFPVHW QFGQLDQHPI DGYLSHTELA
260 270 280 290 300
PLRAPLIPME HCTTRFFQTC DLDNDKYIAL DEWAGCFGIK EQDIDKDLVI
Length:300
Mass (Da):34,240
Last modified:July 10, 2007 - v2
<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:i2462A2D7C6FE6CB5
GO

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
AY963262 mRNA Translation: AAX83050.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S00998

NCBI Reference Sequences

More...
RefSeqi
NP_001026964.1, NM_001031794.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
595124

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ssc:595124

<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
AY963262 mRNA Translation: AAX83050.1
PIRiS00998
RefSeqiNP_001026964.1, NM_001031794.1

3D structure databases

SMRiP20112
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9823.ENSSSCP00000018098

Proteomic databases

PaxDbiP20112
PeptideAtlasiP20112
PRIDEiP20112

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi595124
KEGGissc:595124

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
6678

Phylogenomic databases

eggNOGiKOG4004 Eukaryota
ENOG41101WW LUCA
HOGENOMiHOG000088654
InParanoidiP20112
OrthoDBi1528521at2759

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
IPR037641 SPARC
IPR019577 SPARC/Testican_Ca-bd-dom
PANTHERiPTHR13866:SF6 PTHR13866:SF6, 1 hit
PfamiView protein in Pfam
PF09289 FOLN, 1 hit
PF00050 Kazal_1, 1 hit
PF10591 SPARC_Ca_bdg, 1 hit
SMARTiView protein in SMART
SM00274 FOLN, 1 hit
SM00280 KAZAL, 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...

<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_PIG
<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: P20112
Secondary accession number(s): Q4Z8Q2
<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_and_isoforms">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, 1991
Last sequence update: July 10, 2007
Last modified: May 8, 2019
This is version 105 of the entry and version 2 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

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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