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Monoclonal Antibody Rrna 3'-end Processing

Also showing Monoclonal Antibody Western Blotting Rrna 3'-end Processing

$260
100 µl
APPLICATIONS
REACTIVITY
Human

Application Methods: Immunoprecipitation, Western Blotting

Background: THEX1 (3’hExo) is a 3’ exonuclease that may play a role in the degradation of histone mRNA transcripts (1). A recently identified member of the DEDDh 3' exonuclease family, THEX1 binds the conserved stem-loop structure found at the 3’ end of mRNA in vitro (2). The binding of THEX1 to mRNA requires the presence of a terminal ACCCA sequence and is enhanced by the concurrent binding of stem-loop binding protein (SLBP). Cleavage of histone mRNA by THEX1 exonuclease may help produce the rapid turnover of histone mRNA transcripts associated with the completion of DNA replication (3). Additional evidence suggests that THEX1 may be responsible for excising the remaining few 3’ nucleotides following cleavage by a different enzyme (4).

$260
100 µl
APPLICATIONS
REACTIVITY
Human

Application Methods: Immunoprecipitation, Western Blotting

Background: THEX1 (3’hExo) is a 3’ exonuclease that may play a role in the degradation of histone mRNA transcripts (1). A recently identified member of the DEDDh 3' exonuclease family, THEX1 binds the conserved stem-loop structure found at the 3’ end of mRNA in vitro (2). The binding of THEX1 to mRNA requires the presence of a terminal ACCCA sequence and is enhanced by the concurrent binding of stem-loop binding protein (SLBP). Cleavage of histone mRNA by THEX1 exonuclease may help produce the rapid turnover of histone mRNA transcripts associated with the completion of DNA replication (3). Additional evidence suggests that THEX1 may be responsible for excising the remaining few 3’ nucleotides following cleavage by a different enzyme (4).

$111
20 µl
$260
100 µl
APPLICATIONS
REACTIVITY
Human, Monkey, Mouse, Rat

Application Methods: Immunofluorescence (Immunocytochemistry), Western Blotting

Background: Fibrillarin is a 2'-O-methyltransferase located in fibrillar regions and Cajal bodies of the nucleolus, where RNA transcription and pre-RNA processing take place (1,2). Fibrillarin associates with several other structural proteins as well as box C/D snoRNA to form a complex that functions in pre-rRNA processing, pre-rRNA methylation, and ribosome assembly. This complex catalyzes site-specific 2'-O-ribose methylation of targeted nucleotides within the rRNA sequence (3,4). The sequence, structure, and function of fibrillarin are highly conserved and fibrillarin gene expression is essential for early embryonic development (5).

$260
100 µl
APPLICATIONS
REACTIVITY
Human, Monkey, Mouse

Application Methods: Western Blotting

Background: H box/ACA-motif small nucleolar RNAs (snoRNAs) guide snoRNA proteins (snoRNPs) to uridine residues on rRNA for the conversion to pseudouridine (1). These H/ACA snoRNPs consist of four highly conserved proteins including GAR1, NHP2, NOP10, and the catalytic component dyskerin (1-3). The core snoRNPs also bind to mammalian telomerase RNA, which contains a H/ACA-like motif in the 3’ domain. This binding results in the maintenance of telomerase levels and activity (4). Defects in the snoRNPs can lead to dyskeratosis congenita, a rare, x-linked disorder characterized by a failure of the bone marrow and an increased tumor risk (5,6). Mutations in the dyskerin gene can cause defects in translation of mRNAs containing internal ribosome entry sites (IRESs), which include mRNAs to tumor suppressors p27 and p53 and anti-apoptotic factors Bcl-xL and XIAP (7).