FHIT — Fragile histidine triad diadenosine triphosphatase
FHIT 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.
FHIT's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| CD4⁺ T cells | Naive T cell T cell development | AIF1, AK5, APBA2, BEND5, BEX2, C1orf162, CBR3, CYSLTR1 +21 more | View in SCUBA |
| Enterocytes | Long-gene nuclear transcripts Technical artifact | ARL15, BLNK, CERS6, EXT1, FUT8, KANK1, LDLRAD4, LRBA +6 more | View in SCUBA |
| Mucosal-associated invariant T cell | Naive T cell T cell maturation | AK5, ARID5B, BACH2, CCR7, CSGALNACT1, FOXP1, LEF1, MAL +6 more |
About the gene
| Synonyms | AP3Aase, FRA3B |
|---|---|
| Chromosome | 3: 59747277-61251459 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Cancer-related genes, Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins |
| Molecular function | Hydrolase, Transferase |
| Biological process | Apoptosis, Transcription, Transcription regulation |
Function
Possesses dinucleoside triphosphate hydrolase activity. Cleaves P(1)-P(3)-bis(5'-adenosyl) triphosphate (Ap3A) to yield AMP and ADP. Can also hydrolyze P(1)-P(4)-bis(5'-adenosyl) tetraphosphate (Ap4A), but has extremely low activity with ATP. Exhibits adenylylsulfatase activity, hydrolyzing adenosine 5'-phosphosulfate to yield AMP and sulfate. Exhibits adenosine 5'-monophosphoramidase activity, hydrolyzing purine nucleotide phosphoramidates with a single phosphate group such as adenosine 5'monophosphoramidate (AMP-NH2) to yield AMP and NH2. Exhibits adenylylsulfate-ammonia adenylyltransferase, catalyzing the ammonolysis of adenosine 5'- phosphosulfate resulting in the formation of adenosine 5'- phosphoramidate. Also catalyzes the ammonolysis of adenosine 5-phosphorofluoridate and diadenosine triphosphate. Modulates transcriptional activation by CTNNB1 and thereby contributes to regulate the expression of genes essential for cell proliferation and survival, such as CCND1 and BIRC5. Plays a role in the induction of apoptosis via SRC and AKT1 signaling pathways. Inhibits MDM2-mediated proteasomal degradation of p53/TP53 and thereby plays a role in p53/TP53-mediated apoptosis. Induction of apoptosis depends on the ability of FHIT to bind P(1)-P(3)-bis(5'-adenosyl) triphosphate or related compounds, but does not require its catalytic activity, it may in part come from the mitochondrial form, which sensitizes the low-affinity Ca(2+) transporters, enhancing mitochondrial calcium uptake. Functions as a tumor suppressor (By similarity).
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.