MeSH definition : A poly(A) binding protein that is involved in promoting the extension of the poly
A tails of MRNA. The protein requires a minimum of ten ADENOSINE nucleotides in order
for binding to mRNA. Once bound it works in conjunction with CLEAVAGE AND POLYADENYLATION
SPECIFICITY FACTOR to stimulate the rate of poly A synthesis by POLY A POLYMERASE.
Once poly-A tails reach around 250 nucleotides in length poly(A) binding protein II
no longer stimulates POLYADENYLATION. Mutations within a GCG repeat region in the
gene for poly(A) binding protein II have been shown to cause the disease MUSCULAR
DYSTROPHY, OCULOPHARYNGEAL.;
A poly(A) binding protein that is involved in promoting the extension of the poly
A tails of MRNA. The protein requires a minimum of ten ADENOSINE nucleotides in order
for binding to mRNA. Once bound it works in conjunction with CLEAVAGE AND POLYADENYLATION
SPECIFICITY FACTOR to stimulate the rate of poly A synthesis by POLY A POLYMERASE.
Once poly-A tails reach around 250 nucleotides in length poly(A) binding protein II
no longer stimulates POLYADENYLATION. Mutations within a GCG repeat region in the
gene for poly(A) binding protein II have been shown to cause the disease MUSCULAR
DYSTROPHY, OCULOPHARYNGEAL.