Words similar to triad
Example sentences for: triad
How can you use “triad” in a sentence? Here are some example sentences to help you improve your vocabulary:
Andrew Silow-Carroll invites participants to devise a sequentially trumping topical triad along these lines: NATO, Milosevic, Albanian refugees.
The human FHIT gene, located at the chromosome 3 fragile site FRA3B, is inactivated early in the development of many tumors [ 1 ] . Murine Fhit is also located at a fragile site [ 2 3 ] and mice heterozygous for disruption of Fhit , given low intragastric doses of the mutagen N-nitrosomethylbenzylamine, develop stomach and sebaceous tumors [ 4 ] that can be prevented by viral Fhit expression [ 5 ] . Fhit, a dimer of 147 amino acid subunits, is a member of the histidine triad (HIT) superfamily of nucleotide hydrolases and transferases [ 6 7 ] . Members of the Hint branch of the HIT superfamily are found in all forms of life [ 8 ] . The S. cerevisiae Hint homolog, Hnt1, and rabbit Hint possess adenosine monophosphoramidase activity that functions in yeast to positively regulate function of Kin28, Ccl1 and Tfb3, which constitute the kinase component of general transcription factor TFIIH [ 9 ] . A new Hint related protein, Aprataxin, is mutated in individuals with ataxia with oculomotor apraxia [ 10 11 ] and has a yeast homolog termed Hnt3 [ 9 ] . Members of the Fhit branch of the HIT superfamily have been found in fungi [ 12 13 ] , animals [ 2 14 15 ] and plants [ 7 ] and hydrolyze diadenosine tetraphosphate, diadenosine triphosphate and other 5'-5"'-dinucleoside polyphosphates.
The middle histidine of the histidine triad (His96 in human Fhit), which is critical for hydrolysis of ApppA by Fhit [ 14 16 ] , is not necessary for tumor suppression [ 17 18 ] . Nonetheless, wild-type and His96Asn forms of Fhit are saturated by ApppA in the low micromolar range and form stable complexes with non-hydrolyzable ApppA in which two ApppA analogs are bound per Fhit dimer and all phosphates cluster on one surface of the protein [ 16 ] . These observations suggested that Fhit-substrate complexes may be the active, signaling form of Fhit and that the function of the catalytically essential histidine may be to terminate the lifetime of signaling complexes [ 16 ] .
The South China Morning Post described scenes of "unconfined joy" and "delight" at the arrival of the People's Liberation Army, and according to Britain's Independent , "[a]lmost everyone agreed that China's resumption of sovereignty would help wipe out a turf war that has gripped Macau's gambling industry and sparked 39 triad gangster killings this year alone."
The synapomorphy that unifies this family is the presence of an acidic orienting residue in the catalytic triad (Figure 1).
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