SLC25A4 — Solute carrier family 25 member 4
SLC25A4 belongs to a gene co-expression module in 4 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.
SLC25A4's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| CD4⁺ T cells | Hypoxia metabolic stress Stress | ARG2, ARL4D, AXIN2, BNIP3, CITED4, CNKSR2, GCA, GSTM3 +13 more | View in SCUBA |
| Endothelial | Caveolae-mediated Transcytosis Metabolite transfer | ADIPOR2, CAV1, CAV2, CCDC85A, CD320, EEPD1, EMP2, ENAH +19 more | View in SCUBA |
| Fibroblasts | ICC electrophysiological machinery Gut motility | ADRB3, CAP2, CDCA7L, CSRP2, DTNA, GREM2, LGI1, LMO3 +5 more | View in SCUBA |
| Smooth muscle cells | Muscle Energy Metabolism Mitochondrial & OxPhos | ANP32B, HACD1, HEY2, MAP3K20, MRPS6, PIP5K1B, PNRC2, PPP1R1A +4 more | View in SCUBA |
About the gene
| Synonyms | AAC1, ANT1, PEO2, PEO3, T1 |
|---|---|
| Chromosome | 4: 185143266-185150382 |
| Predicted location | Membrane |
| Essential gene | No |
| Protein class | Disease related genes, FDA approved drug targets, Human disease related genes, Metabolic proteins, Predicted membrane proteins, Transporters |
| Biological process | Antiport, Host-virus interaction, Transport |
Function
ADP:ATP antiporter that mediates import of ADP into the mitochondrial matrix for ATP synthesis, and export of ATP out to fuel the cell. Cycles between the cytoplasmic-open state (c-state) and the matrix-open state (m-state): operates by the alternating access mechanism with a single substrate- binding site intermittently exposed to either the cytosolic (c-state) or matrix (m-state) side of the inner mitochondrial membrane (By similarity). In addition to its ADP:ATP antiporter activity, also involved in mitochondrial uncoupling and mitochondrial permeability transition pore (mPTP) activity. Plays a role in mitochondrial uncoupling by acting as a proton transporter: proton transport uncouples the proton flows via the electron transport chain and ATP synthase to reduce the efficiency of ATP production and cause mitochondrial thermogenesis (By similarity). Proton transporter activity is inhibited by ADP:ATP antiporter activity, suggesting that SLC25A4/ANT1 acts as a master regulator of mitochondrial energy output by maintaining a delicate balance between ATP production (ADP:ATP antiporter activity) and thermogenesis (proton transporter activity) (By similarity). Proton transporter activity requires free fatty acids as cofactor, but does not transport it (By similarity). Also plays a key role in mPTP opening, a non-specific pore that enables free passage of the mitochondrial membranes to solutes of up to 1.5 kDa, and which contributes to cell death. It is however unclear if SLC25A4/ANT1 constitutes a pore-forming component of mPTP or regulates it (By similarity). Acts as a regulator of mitophagy independently of ADP:ATP antiporter activity: promotes mitophagy via interaction with TIMM44, leading to inhibit the presequence translocase TIMM23, thereby promoting stabilization of PINK1 (By similarity).
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.