Listing of mutations: Mutations at locations other than the CGG repeat have been described.
The introduction of a cysteine residue in the active site of SHMT2 by site directed mutagenesis (A206C mutation), at a location corresponding to that of Cys204 in SHMT1, yields an enzyme that forms a 3BP-enzyme complex and is completely inactivated.
A frameshift mutation at this location is expected to disrupt the phosphoribosyltransferase-type I domain that is essential to HPRT1 function.
By altering the amino acid composition via mutation at three locations, i.e. Ser300 to Cys, Gly302 to Arg, and Glu303 to Arg, a highly cationic nanomer sequence consisting of 297KHRRCPRRR304 and possessing a well-demonstrated heparin-binding domain was established within the 37-loop.
It has been proposed that nonsense or frame shift mutations at any location and all mutations located in the homeodomain are associated with AV conduction disease, while patients harbouring missense mutations outside of the homeodomain show no AV conduction delay [ 19].
While word sequence and frequency analysis provide an inferred development pathway, it is important to note that not all mutational events may be observed, as reversion to reference sequence is possible in mutational hot-spots, and if a specific base change generates a mutational motif, the probability of additional mutations at that location will be increased.
The first was a het-2 mutation (654/700 reads) at location 63385139 bp within the gene Fam101b (family with sequence similarity 101) of A/G (P176L) with a coverage of 654 reads.
Because the DrosDel stocks and many P{SUPor-P} stocks carry the scpt mutation at an unknown location and a red eye marker (white +) at a defined location, we used traditional meiotic mapping to determine the location of scpt.
(4) The relatively high frequency of multiplets with two or more clustered mutations and an additional mutation at a distal location also argues for a chronocoordinate mutational event plus an independent single mutational event.
This phenotype, which we termed mouse PPCD1, segregated independently from the targeted Cypor gene and appeared to be the result of a spontaneous mutation at an unknown location within the genome of the ES cells.
