Homo sapiens Protein: SPP1
Summary
InnateDB Protein IDBP-240243.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol SPP1
Protein Name secreted phosphoprotein 1
Synonyms BNSP; BSPI; ETA-1; OPN;
Species Homo sapiens
Ensembl Protein ENSP00000378517
InnateDB Gene IDBG-29322 (SPP1)
Protein Structure
UniProt Annotation
Function Binds tightly to hydroxyapatite. Appears to form an integral part of the mineralized matrix. Probably important to cell-matrix interaction.Acts as a cytokine involved in enhancing production of interferon-gamma and interleukin-12 and reducing production of interleukin-10 and is essential in the pathway that leads to type I immunity. {ECO:0000250}.
Subcellular Localization Secreted.
Disease Associations
Tissue Specificity Bone. Found in plasma.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 79 experimentally validated interaction(s) in this database.
They are also associated with 1 interaction(s) predicted by orthology.
Experimentally validated
Total 79 [view]
Protein-Protein 79 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 1 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005125 cytokine activity
GO:0005515 protein binding
GO:0050840 extracellular matrix binding
Biological Process
GO:0001503 ossification
GO:0001649 osteoblast differentiation
GO:0006954 inflammatory response
GO:0007155 cell adhesion
GO:0007566 embryo implantation
GO:0010033 response to organic substance
GO:0010811 positive regulation of cell-substrate adhesion
GO:0022617 extracellular matrix disassembly
GO:0030154 cell differentiation
GO:0030198 extracellular matrix organization
GO:0030593 neutrophil chemotaxis
GO:0031214 biomineral tissue development
GO:0033280 response to vitamin D
GO:0045087 innate immune response (InnateDB)
GO:0045780 positive regulation of bone resorption
GO:0046697 decidualization
GO:0048545 response to steroid hormone
GO:0048685 negative regulation of collateral sprouting of intact axon in response to injury
Cellular Component
GO:0005576 extracellular region
GO:0005615 extracellular space
GO:0005737 cytoplasm
GO:0031988 membrane-bounded vesicle
GO:0042995 cell projection
GO:0045177 apical part of cell
GO:0048471 perinuclear region of cytoplasm
GO:0070062 extracellular vesicular exosome
Protein Structure and Domains
PDB ID
InterPro IPR002038 Osteopontin
PFAM PF00865
PRINTS PR00216
PIRSF
SMART SM00017
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt P10451
PhosphoSite PhosphoSite-P10451
TrEMBL A0A024RDE2
UniProt Splice Variant
Entrez Gene 6696
UniGene Hs.705703
RefSeq NP_001035147
HUGO HGNC:11255
OMIM 166490
CCDS CCDS43250
HPRD 01325
IMGT
EMBL AC131944 AF052124 AK075463 AK290090 AK290104 AK296035 AK315461 BC007016 BC017387 BC022844 BC093033 CH471057 D14813 D28759 D28760 D28761 DQ839491 DQ846871 J04765 JF412667 M83248 U20758 X13694
GenPept AAA17675 AAA59974 AAA86886 AAC28619 AAH07016 AAH17387 AAH22844 AAH93033 AAY41035 ABI63352 ABI63358 AEA49031 BAA03554 BAA05949 BAA05950 BAA05951 BAC11635 BAF82779 BAF82793 BAG37848 BAG58801 CAA31984 EAX06004 EAX06005 EAX06006 EAX06007 EAX06008