SLC9A9 — Solute carrier family 9 member A9
SLC9A9 belongs to a gene co-expression module in 3 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
SLC9A9's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| CD4⁺ T cells | T Cell Signaling B cell help | CCDC6, EFNB2, ELMO1, ETS1, MYO5A, PTPN11, RABGAP1L, SFXN1 +4 more | View in SCUBA |
| Macrophages | Macrophage Migration Migration & adhesion | CEMIP2, CPM, EPB41L2, EPS8, GBE1, ITGA9, KCNQ1, MAN1A1 +12 more | View in SCUBA |
| Mucosal-associated invariant T cell | Chromatin Remodeling DNA/chromatin regulation | ANK3, ARHGAP15, ARL15, BCAS3, CAMKMT, CCDC91, DPYD, EDA +13 more |
About the gene
| Synonyms | FLJ35613, NHE9 |
|---|---|
| Chromosome | 3: 143265222-143848485 |
| Predicted location | Membrane |
| Essential gene | No |
| Protein class | Disease related genes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted membrane proteins, Transporters |
| Biological process | Antiport, Ion transport, Sodium transport, Transport |
Function
Endosomal Na(+), K(+)/H(+) antiporter. Mediates the electroneutral exchange of endosomal luminal H(+) for a cytosolic Na(+) or K(+) (Probable). By facilitating proton efflux, SLC9A9 counteracts the acidity generated by vacuolar (V)-ATPase, thereby limiting luminal acidification. Regulates organellar pH and consequently, e.g. endosome maturation and endocytic trafficking of plasma membrane receptors and neurotransporters. Promotes the recycling of transferrin receptors back to the cell surface to facilitate additional iron uptake in the brain. Regulates synaptic transmission by regulating the luminal pH of axonal endosomes (By similarity). Regulates phagosome lumenal pH, thus affecting phagosome maturation, and consequently, microbicidal activity in macrophages (By similarity). Can also be active at the cell surface of specialized cells, e.g. in the inner ear hair bundles uses the high K(+) of the endolymph to regulate intracelular pH (By similarity).
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.