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anti-Rat (Rattus) CLP1 Antibodies:
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loss of CLP1 activity results in accumulation of a novel set of small RNA fragments derived from aberrant processing of tyrosine pre-transfer RNA; these tRNA fragments sensitize cells to oxidative-stress-induced p53 activation and p53-dependent cell death
We have reconstituted CF II as a heterodimer of hPcf11 and hClp1. The heterodimer is active in partially reconstituted cleavage reactions, whereas hClp1 by itself is not. Pcf11 moderately stimulates the RNA 5' kinase activity of hClp1; the kinase activity is dispensable for RNA cleavage
Study reports the identification of a human CLP1 mutation that impairs tRNA splicing in vitro and causes a neurological syndrome involving both the central nervous system (CNS) and peripheral nervous system (PNS).
Data link tRNA maturation to neuronal development and neurodegeneration through defective CLP1 function in humans.
the kinase hClp1 phosphorylates and licenses synthetic siRNAs to become assembled into RISC for subsequent target RNA cleavage
Expression of hClp1 in budding yeast can complement conditional and lethal mutations in the essential 5'-OH RNA kinase module of yeast or plant tRNA ligases.
HEAB is a pre-mRNA 3'-end processing factor, which bridges two other pre-mRNA processing factors (CF Im and CPSF) and is involved in cleavage of the pre-mRNA. It can be UV-crosslinked to GTP.
Polynucleotide kinase that can phosphorylate the 5'- hydroxyl groups of double-stranded RNA (dsRNA), single-stranded RNA (ssRNA), double stranded DNA (dsDNA) and double-stranded DNA:RNA hybrids. dsRNA is phosphorylated more efficiently than dsDNA, and the RNA component of a DNA:RNA hybrid is phosphorylated more efficiently than the DNA component. Appears to have roles in both tRNA splicing and mRNA 3'-end formation. Component of the tRNA splicing endonuclease complex. Phosphorylates the 5'-terminus of the tRNA 3'-exon during tRNA splicing\; this phosphorylation event is a prerequisite for the subsequent ligation of the two exon halves and the production of a mature tRNA. Component of the pre-mRNA cleavage complex II (CF-II), which seems to be required for mRNA 3'-end formation. Also phosphorylates the 5'-terminus of exogenously introduced short interfering RNAs (siRNAs), which is a necessary prerequisite for their incorporation into the RNA- induced silencing complex (RISC). However, endogenous siRNAs and microRNAs (miRNAs) that are produced by the cleavage of dsRNA precursors by DICER1 already contain a 5'-phosphate group, so this protein may be dispensible for normal RNA-mediated gene silencing (By similarity).
, CLP1, cleavage and polyadenylation factor I subunit, homolog
, polyadenylation factor Clp1
, polynucleotide kinase Clp1
, polyribonucleotide 5'-hydroxyl-kinase Clp1
, pre-mRNA cleavage complex II protein Clp1
, homolog of yeast CFIA subunit Clp1p
, Polyadenylation factor Clp1
, Polynucleotide kinase Clp1
, Pre-mRNA cleavage complex II protein Clp1