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HMDB Protein ID HMDBP00615
Secondary Accession Numbers
  • 5887
Name Bis(5'-adenosyl)-triphosphatase
  1. AP3A hydrolase
  2. AP3Aase
  3. Diadenosine 5',5'''-P1,P3-triphosphate hydrolase
  4. Dinucleosidetriphosphatase
  5. Fragile histidine triad protein
Gene Name FHIT
Protein Type Unknown
Biological Properties
General Function Involved in catalytic activity
Specific Function Cleaves A-5'-PPP-5'A to yield AMP and ADP. Possible tumor suppressor for specific tissues.
  • Non-small cell lung cancer
  • Purine metabolism
  • Small cell lung cancer
P(1)-P(3)-bis(5'-adenosyl) triphosphate + Water → ADP + Adenosine monophosphate details
Diadenosine triphosphate + Water → ADP + Adenosine monophosphate details
GO Classification
Biological Process
nucleotide metabolic process
DNA replication
diadenosine triphosphate catabolic process
Cellular Component
plasma membrane
intracellular membrane-bounded organelle
catalytic activity
Molecular Function
nickel cation binding
bis(5'-adenosyl)-triphosphatase activity
Cellular Location
  1. Cytoplasm
Gene Properties
Chromosome Location 3
Locus 3p14.2
Gene Sequence
>444 bp
Protein Properties
Number of Residues 147
Molecular Weight 16858.11
Theoretical pI 7.073
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
GenBank ID Protein 261278358
UniProtKB/Swiss-Prot ID P49789
UniProtKB/Swiss-Prot Entry Name FHIT_HUMAN
GenBank Gene ID NM_001166243.1
GeneCard ID FHIT
GenAtlas ID FHIT
General References
  1. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  2. Ohta M, Inoue H, Cotticelli MG, Kastury K, Baffa R, Palazzo J, Siprashvili Z, Mori M, McCue P, Druck T, Croce CM, Huebner K: The FHIT gene, spanning the chromosome 3p14.2 fragile site and renal carcinoma-associated t(3;8) breakpoint, is abnormal in digestive tract cancers. Cell. 1996 Feb 23;84(4):587-97. [PubMed:8598045 ]
  3. Druck T, Hadaczek P, Fu TB, Ohta M, Siprashvili Z, Baffa R, Negrini M, Kastury K, Veronese ML, Rosen D, Rothstein J, McCue P, Cotticelli MG, Inoue H, Croce CM, Huebner K: Structure and expression of the human FHIT gene in normal and tumor cells. Cancer Res. 1997 Feb 1;57(3):504-12. [PubMed:9012482 ]
  4. Barnes LD, Garrison PN, Siprashvili Z, Guranowski A, Robinson AK, Ingram SW, Croce CM, Ohta M, Huebner K: Fhit, a putative tumor suppressor in humans, is a dinucleoside 5',5"'-P1,P3-triphosphate hydrolase. Biochemistry. 1996 Sep 10;35(36):11529-35. [PubMed:8794732 ]
  5. Huang K, Arabshahi A, Wei Y, Frey PA: The mechanism of action of the fragile histidine triad, Fhit: isolation of a covalent adenylyl enzyme and chemical rescue of H96G-Fhit. Biochemistry. 2004 Jun 15;43(23):7637-42. [PubMed:15182206 ]
  6. Pekarsky Y, Garrison PN, Palamarchuk A, Zanesi N, Aqeilan RI, Huebner K, Barnes LD, Croce CM: Fhit is a physiological target of the protein kinase Src. Proc Natl Acad Sci U S A. 2004 Mar 16;101(11):3775-9. Epub 2004 Mar 8. [PubMed:15007172 ]
  7. Lima CD, D'Amico KL, Naday I, Rosenbaum G, Westbrook EM, Hendrickson WA: MAD analysis of FHIT, a putative human tumor suppressor from the HIT protein family. Structure. 1997 Jun 15;5(6):763-74. [PubMed:9261067 ]
  8. Lima CD, Klein MG, Hendrickson WA: Structure-based analysis of catalysis and substrate definition in the HIT protein family. Science. 1997 Oct 10;278(5336):286-90. [PubMed:9323207 ]
  9. Pace HC, Garrison PN, Robinson AK, Barnes LD, Draganescu A, Rosler A, Blackburn GM, Siprashvili Z, Croce CM, Huebner K, Brenner C: Genetic, biochemical, and crystallographic characterization of Fhit-substrate complexes as the active signaling form of Fhit. Proc Natl Acad Sci U S A. 1998 May 12;95(10):5484-9. [PubMed:9576908 ]