Mus musculus Gene: S100a9
Summary
InnateDB Gene IDBG-168119.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol S100a9
Gene Name S100 calcium binding protein A9 (calgranulin B)
Synonyms 60B8Ag; AW546964; BEE22; Cagb; GAGB; L1Ag; MRP14; p14
Species Mus musculus
Ensembl Gene ENSMUSG00000056071
Encoded Proteins
S100 calcium binding protein A9 (calgranulin B)
S100 calcium binding protein A9 (calgranulin B)
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
InnateDB Annotation
Summary
S100a9 forms a complex with S100a8 and the complex is the site of interplay between extracellular Ca(2+) entry and intra-phagosomal reactive oxygen species production. S100a8 :: S100a9 acts as Ca(2+) sensor in phagosomal ROS production.
S100a9-deficient murine neutrophils exhibited a reduce secretion of cytokines in response to Tlr4 stimulation. In contrast, S100a9-deficient dendritic cells showed an exacerbated release of cytokines after TLR stimulation. S100a9 has no effect on the inflammatory status of macrophages.
S100a9 is strongly upregulated in neutrophils upon bacterial infection, and sequesters zinc as a mechanism of nutritional immunity. Salmonella typhimurium overcomes this defence mechanism by expressing a high affinity zinc transporter.
S100A9 forms a heterodimer with S100A8 and is a key player in protective innate immunity during Klebsiella pneumonia infection.
S100a8/S100a9 are proinflammatory proteins that activate natural killer cells via Ager signalling.
InnateDB Annotation from Orthologs
Summary
[Homo sapiens] S100A9 is an intracellular calcium-binding protein that promotes neutrophil/monocyte recruitment at inflamed tissues by enhancing attachment to endothelial cells.
[Homo sapiens] S100A9 is a myeloid-related protein that rapidly modulates macrophage nitric oxide production during innate immune response.
[Homo sapiens] S100A9 (calgranulin B) and S100A8 (calgranulin A) form an antimicrobial heterodimeric complex known as calprotectin. Bacterial flagellin induces the upregulation of S100A9/S100A8 heterodimer via a TLR5-dependent mechanism in epidermal keratinocytes.
[Homo sapiens] S100A9 forms a complex with S100A8 and the complex is the site of interplay between extracellular Ca(2+) entry and intra-phagosomal reactive oxygen species production. S100A8 :: S100A9 acts as Ca(2+) sensor in phagosomal ROS production.
[Homo sapiens] S100A9-deficient murine neutrophils exhibited a reduce secretion of cytokines in response to TLR4 stimulation. In contrast, S100A9-deficient dendritic cells showed an exacerbated release of cytokines after TLR stimulation. S100A9 has no effect on the inflammatory status of macrophages. (Demonstrated in murine model)
[Homo sapiens] S100A9 is strongly upregulated in neutrophils upon bacterial infection, and sequesters zinc as a mechanism of nutritional immunity. Salmonella typhimurium overcomes this defence mechanism by expressing a high affinity zinc transporter. (Demonstrated in mice)
[Homo sapiens] S100A9 forms a heterodimer with S100A8 and is a key player in protective innate immunity during Klebsiella pneumonia infection.
[Homo sapiens] S100A8::S100A9 heterodimer sequesters Mn(2+) and Zn(2+) to starve bacteria of these essential nutrients.
Entrez Gene
Summary This gene does not have any Entrez summary - the following is the summary from its human ortholog ENSG00000163220:
The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21. This protein may function in the inhibition of casein kinase and altered expression of this protein is associated with the disease cystic fibrosis. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 3:90692632-90695721
Strand Reverse strand
Band F1
Transcripts
ENSMUST00000069960 ENSMUSP00000070842
ENSMUST00000117167 ENSMUSP00000112843
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 7 experimentally validated interaction(s) in this database.
They are also associated with 74 interaction(s) predicted by orthology.
Experimentally validated
Total 7 [view]
Protein-Protein 7 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 74 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005509 calcium ion binding
GO:0005515 protein binding
GO:0008017 microtubule binding
GO:0008270 zinc ion binding
GO:0016209 antioxidant activity
GO:0035662 Toll-like receptor 4 binding
GO:0050544 arachidonic acid binding
GO:0050786 RAGE receptor binding
Biological Process
GO:0002523 leukocyte migration involved in inflammatory response
GO:0002544 chronic inflammatory response
GO:0006914 autophagy
GO:0006919 activation of cysteine-type endopeptidase activity involved in apoptotic process
GO:0010043 response to zinc ion
GO:0030593 neutrophil chemotaxis
GO:0030595 leukocyte chemotaxis
GO:0031532 actin cytoskeleton reorganization
GO:0032496 response to lipopolysaccharide
GO:0045087 innate immune response (InnateDB)
GO:0045113 regulation of integrin biosynthetic process
GO:0045471 response to ethanol
GO:0050729 positive regulation of inflammatory response
GO:0070488 neutrophil aggregation
GO:2001244 positive regulation of intrinsic apoptotic signaling pathway
Cellular Component
GO:0005615 extracellular space
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005856 cytoskeleton
GO:0005886 plasma membrane
GO:0070062 extracellular vesicular exosome
Orthologs
Species
Homo sapiens
Bos taurus
Gene ID
Gene Order
Not yet available
Pathway Predictions based on Human Orthology Data
NETPATH
REACTOME
KEGG
INOH
PID NCI
Endogenous TLR signaling
Cross-References
SwissProt P31725
TrEMBL Q3UP42
UniProt Splice Variant
Entrez Gene 20202
UniGene Mm.2128
RefSeq NM_001281852 NM_009114
OMIM
CCDS CCDS17543
HPRD
IMGT
MGI ID MGI:1338947
MGI Symbol S100a9
EMBL AJ250496 AK143826 BC027635 CH466547 M83219
GenPept AAB07228 AAH27635 BAE25555 CAC14292 EDL15109 EDL15110
RNA Seq Atlas 20202