Words similar to acceptor
Example sentences for: acceptor
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The region between -50 and -10 upstream from the acceptor site was examined for a branch point signal and the corresponding branch point score was calculated (Table 1).
Rab proteins comprise a large family of Ras-related GTPases that function in the anterograde and retrograde trafficking of proteins in mammalian cells [ 1 2 3 ] . Different Rab proteins reside in specific subcellular membranes or organelles, where they mediate vesicular transport between discrete donor and acceptor compartments in the endocytic or exocytic pathways [ 4 5 ] . Detailed studies of a few Rab proteins ( e.g .; Rab1, Rab5 and Rab9) have led to a general model wherein Rab proteins are presumed to cycle on and off donor and acceptor membranes in connection with changes in their guanine nucleotide state [ 6 7 8 ] . In the active GTP-bound state, Rab proteins associate with budding transport vesicles [ 9 10 11 ] and appear to participate in the assembly of membrane docking complexes [ 12 13 14 ] . Following vesicle fusion with the acceptor compartment and GTP hydrolysis, the inactive GDP-bound Rab is extracted from the membrane by a carrier protein termed guanine nucleotide dissociation inhibitor (GDI) [ 15 16 17 ] . The GTPase can then re-enter the transport cycle through nucleotide exchange promoted by a specific exchange factor at the donor vesicle membrane [ 18 19 20 ] . In addition to changes in guanine nucleotide state, the posttranslational prenylation of Rab proteins plays an important role in the cycling mechanism.
Competition between the alternative splice sites depends on the relative quality of the different constitutive splice signals and we found that the acceptor strength probably plays a major role in this regulation.
Some of these variants have been independently observed by other groups: NF1ins4a-2 [ 14 15 16 ] , NF1ΔE4b [ 14 15 16 ] , NF1ΔE7 [ 15 19 ] , NF1ΔE29/E30 [ 11 ] , NF1ΔE30 [ 11 ] , NF1ΔE33 [ 16 ] , NF1ΔE34 [ 16 ] , NF1ΔE37 [ 15 16 ] , NF1ΔE43 [ 16 ] , NF1-Δ7605-7675 [ 16 ] and NF1ΔE45 [ 16 ] . Some of these transcripts increased with time or cold shock [ 14 16 ] . It has been shown that ~30 % of NF1 germline mutations result in splicing errors [ 13 20 ] . The vast majority of them are due to alterations outside the canonical AG/GT acceptor and donor splice sites.
through increased specificity of phosphate uptake, [ 2 ] ), arsenite oxidation through the activity of arsenite oxidase [ 3 4 ] , or peroxidation reactions with membrane lipids [ 5 6 ] . Other microorganisms utilize arsenic in metabolism, either as a terminal electron acceptor in dissimilatory arsenate respiration [ 7 8 9 10 ] or as an electron donor in chemoautotrophic arsenite oxidation [ 11 12 ] . However, the most well-characterized microbial arsenic detoxification pathway involves the ars operon [ 2 13 ] .
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