Protein S100A9
Identifiers
HUGO:S100A9
Maps_Modules
HMC:AVOIDING_IMMUNE_DESTRUCTION
Innate Immunity
/ RECRUITMENT_OF_IMMUNE_CELLS
References
MDSC
CASCADE:S100A
PMID:18802069, PMID:23248262
S100A8/A9 proteins are chemotactic for MDSC.
S100A8/A9 proteins bind to carboxylated N-glycans expressed on the receptor (probably RAGE) for advanced glycation end-products and other cell surface glycoprotein receptors on MDSC, signal through the NF-kappaB pathway, and promote MDSC migration and immunosuppressive function in tumor.
PMID:18809714, PMID:12645005
S100A9 regulates myeloid cell differentiation via reactive oxygen species (ROS), probabli via NAPDH oxidase.
S100A9 may suppress myeloid cell differentiation via persistent up-regulation of ROS in progenitor cells.
Modifications:
In compartment: INNATE_IMMUNE_CELL_Cytosol
- S100A9@INNATE_IMMUNE_CELL_Cytosol
Participates in complexes:
In compartment: INNATE_IMMUNE_CELL_Cytosol
- S100A8:S100A9@INNATE_IMMUNE_CELL_Cytosol
In compartment: INNATE_IMMUNE_CELL_Membrane
- RAGE*:S100A8:S100A9@INNATE_IMMUNE_CELL_Membrane
In compartment: default
- S100A8:S100A9@default
Participates in reactions:
As Reactant or Product:- S100A9@INNATE_IMMUNE_CELL_Cytosol
+ S100A8@INNATE_IMMUNE_CELL_Cytosol
→
S100A8:S100A9@INNATE_IMMUNE_CELL_Cytosol
- S100A8:S100A9@INNATE_IMMUNE_CELL_Cytosol
→
S100A8:S100A9@default
- RAGE*:S100A8:S100A9@INNATE_IMMUNE_CELL_Membrane
→
RECRUITMENT_OF_IMMUNE_CELLS@INNATE_IMMUNE_CELL_Cytosol
- RAGE*@INNATE_IMMUNE_CELL_Membrane
+ S100A8:S100A9@default
→
RAGE*:S100A8:S100A9@INNATE_IMMUNE_CELL_Membrane
- rS100A9@INNATE_IMMUNE_CELL_Cytosol
→
S100A9@INNATE_IMMUNE_CELL_Cytosol
As Catalyser:- O_sub_2_endsub_@INNATE_IMMUNE_CELL_Cytosol
→
O_sub_2_endsub__super_-_endsuper_@INNATE_IMMUNE_CELL_Cytosol