Evidence that Lep1s co-localize with protein-coding genes in B. mori genome (section 3.3) suggests that integrations may affect the structure and function of lepidopteran genes, and that presence/absence mutation at orthologous loci may be a source of function genetic variation among species.
Gene duplication has been considered for a long time to be a source of novel functions, and to have played a significant part in genome functional evolution and species divergence.
Novel genes are widely recognized as a source of new functions [ 94] but inversion-associated duplication has not been considered a molecular mechanism that can generate new genes until very recently and only in prokaryotes [ 20].
Mr. Englund returns as Freddy, the dream reaver who uses the fear in children's nocturnal flights of fancy as a source of energy; he functions on the premise that "Monsters Inc".
Duplicated sequences usually evolve significantly faster than unduplicated genes with a similar level of divergence, showing an early phase of relaxed constraints is in agreement with the view that gene duplications are a source of new protein functions [ 96, 97].
Given the high degree of sequence homology of SFK SH2, SH3, and CDs, we like many others in the field focused on the relatively nonhomologous SH2-CD linker as a source of nonredundant biological functions between SFKs.
It is thus possible that the members of the PGRS and MPTR subfamilies have evolved to function as a source of antigenic variation; a function which probably differs from the original function still performed by the members of the "ancestral-type" subgroup (including the members present within and associated with the ESAT-6 (esx) gene cluster regions).
Mrs. Murrain said that her son needed to "get on his feet, have a source of income, and function as best as can be".
Extremophile archaea, particularly those resistant either to heat or to extremes of acidity and alkalinity, are a source of enzymes that function under these harsh conditions.
Using the pallid mouse as a source of neurons, the function of dysbindin as a BLOC-1 component can be investigated.
