Upf1 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	WB
Reactivity	Mouse
Host	Rabbit
Clonality	Polyclonal
Immunogen	The immunogen is a synthetic peptide directed towards the C terminal region of mouse UPF1
Specificity	Expected reactivity: Mouse
Formulation	Liquid. Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.
Concentration	lot specific
Purification	Affinity purified
Conjugation	Unconjugated
Storage Condition	For short term use, store at 2-8°C up to 1 week. For long term storage, store at -20°C in small aliquots to prevent freeze-thaw cycles.
Predicted Protein Size	123 kDa
Gene Name	UPF1 regulator of nonsense transcripts homolog (yeast)
Database Link	NP_001116301.1 Entrez Gene 19704 Mouse UniProt ID Q9EPU0
Background	RNA-dependent helicase and ATPase required for nonsense-mediated decay (NMD) of mRNAs containing premature stop codons. Is recruited to mRNAs upon translation termination and undergoes a cycle of phosphorylation and dephosphorylation; its phosphorylation appears to be a key step in NMD. Recruited by release factors to stalled ribosomes together with the SMG1C protein kinase complex to form the transient SURF (SMG1-UPF1-eRF1-eRF3) complex. In EJC-dependent NMD, the SURF complex associates with the exon junction complex (EJC) (located 50-55 or more nucleotides downstream from the termination codon) through UPF2 and allows the formation of an UPF1-UPF2-UPF3 surveillance complex which is believed to activate NMD. Phosphorylated UPF1 is recognized by EST1B/SMG5, SMG6 and SMG7 which are thought to provide a link to the mRNA degradation machinery involving exonucleolytic and endonucleolytic pathways, and to serve as adapters to protein phosphatase 2A (PP2A), thereby triggering UPF1 dephosphorylation. UPF1 can also activate NMD without UPF2 or UPF3, and in the absence of the NMD-enhancing downstream EJC indicative for alternative NMD pathways. Plays a role in replication-dependent histone mRNA degradation at the end of phase S; the function is independent of UPF2. For the recognition of premature termination codons (PTC) and initiation of NMD a competitive interaction between UPF1 and PABPC1 with the ribosome-bound release factors is proposed. The ATPase activity of UPF1 is required for disassembly of mRNPs undergoing NMD (By similarity). Essential for embryonic viability.
Synonyms	FLJ43809; FLJ46894; HUPF1; KIAA0221; NORF1; pNORF1; RENT1
Reference Data

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