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Key Documents

07-1016

Sigma-Aldrich

Anti-phospho-Upf1 (Ser1127) Antibody

from rabbit, purified by affinity chromatography

Synonym(s):

Regulator of nonsense transcripts 1, ATP-dependent helicase RENT1, Nonsense mRNA reducing factor 1, NORF1, Up-frameshift suppressor 1 homolog, hUpf1

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

purified by

affinity chromatography

species reactivity

mouse, human

species reactivity (predicted by homology)

chicken (based on 100% sequence homology), zebrafish (based on 100% sequence homology), yeast (based on 100% sequence homology), bovine (based on 100% sequence homology), rat (based on 100% sequence homology)

technique(s)

immunoprecipitation (IP): suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

phosphorylation (pSer1127)

Gene Information

human ... UPF1(5976)

General description

Regulator of nonsense transcripts 1 (UniProt: Q92900; also known as ATP-dependent helicase RENT1, Nonsense mRNA reducing factor 1, NORF1, Up-frameshift suppressor 1 homolog, hUpf1) is encoded by the UPF1 (also known as KIAA0221, RENT1) gene (Gene ID: 5976) in human. Upf1 is a member of the DNA2/NAM7 helicase family. It is a RNA-dependent helicase and ATPase required for nonsense-mediated decay (NMD) of mRNAs containing premature stop codons. It is recruited to mRNAs upon translation termination and undergoes a cycle of phosphorylation and dephosphorylation. It is phosphorylated by SMG1 and phosphorylation is considered as an essential step in NMD and is required for formation of mRNA surveillance complexes. Phosphorylated Upf1 is recognized by EST1B/SMG5, SMG6, and SMG7, which provide a link to the mRNA degradation machinery involving exonucleolytic and endonucleolytic pathways. A hyper-phosphorylated form is targeted to the P-body, while unphosphorylated protein is distributed throughout the cytoplasm. The ATPase activity of Upf1 is required for disassembly of mRNPs undergoing NMD and is also essential for embryonic viability. Two isoforms of Upf1 have been reported that are produced by alternative splicing. Upf1 contains a UPF1-type zinc-finger domain (aa 121-272) and a nucleotide-binding domain (aa 506-510).

Specificity

This rabbit polyclonal antibody detects Regulator of nonsense transcripts 1 (RENT1) in multiple species. It targets an epitope within 9 amino acids surrounding phosphorylated Ser1127.

Immunogen

Epitope: Phosphorylated Ser1127
KLH-conjugated linear peptide corresponding to Upf1 phosphorylated at Ser1127.

Application

Anti-phospho-Upf1 (Ser1127), Cat. No. 07-1016, is a highly specific rabbit polyclonal antibody that targets Regulator of nonsense transcripts 1 (RENT1) phosphorylated at Ser1127 and has been tested in Immunoprecipitation, peptide Inhibition Assay, and Western Blotting.
Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected phospho-Upf1 (Ser1127) in 10 µg of A431 treated with Calyculin A and Okadaic Acid.

Peptide Inhibition Analysis: A 1:1,000 dilution from a representative lot blocked phospho-Upf1 (Ser1127) in NIH3T3 treated with Calyculin A and Okadaic Acid.

Immunoprecipitation Analysis: 5 µg from a representative lot immunoprecipitated phospho-Upf1 (Ser1127) in NIH3T3 treated with Calyculin A and Okadaic Acid.

Quality

Evaluated by Western Blotting in NIH3T3 treated with Calyculin A and Okadaic Acid.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected phospho-Upf1 (Ser1127) in 10 µg lysate from NIH3T3 treated with Calyculin A (50 nM) and Okadaic Acid (500 nM) for 30 minutes.

Target description

~140 kDa observed. 125 kDa calculated.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Yang Zhao et al.
Nature communications, 11(1), 3345-3345 (2020-07-06)
Nonsense-mediated mRNA decay (NMD) is an evolutionarily conserved RNA decay mechanism that has emerged as a potent cell-intrinsic restriction mechanism of retroviruses and positive-strand RNA viruses. However, whether NMD is capable of restricting DNA viruses is not known. The DNA
Feng Wang et al.
Nature communications, 14(1), 4760-4760 (2023-08-09)
Long-read RNA sequencing (RNA-seq) is a powerful technology for transcriptome analysis, but the relatively low throughput of current long-read sequencing platforms limits transcript coverage. One strategy for overcoming this bottleneck is targeted long-read RNA-seq for preselected gene panels. We present
Tatsuaki Kurosaki et al.
Genome biology, 22(1), 317-317 (2021-11-18)
Fragile X syndrome (FXS) is an intellectual disability attributable to loss of fragile X protein (FMRP). We previously demonstrated that FMRP binds mRNAs targeted for nonsense-mediated mRNA decay (NMD) and that FMRP loss results in hyperactivated NMD and inhibition of
Hanae Sato et al.
Nature communications, 12(1), 7203-7203 (2021-12-12)
Nonsense-mediated mRNA decay (NMD) is an mRNA degradation pathway that eliminates transcripts containing premature termination codons (PTCs). Half-lives of the mRNAs containing PTCs demonstrate that a small percent escape surveillance and do not degrade. It is not known whether this
Sébastien Durand et al.
Nature communications, 7, 12434-12434 (2016-08-12)
Many gene expression factors contain repetitive phosphorylation sites for single kinases, but the functional significance is poorly understood. Here we present evidence for hyperphosphorylation as a mechanism allowing UPF1, the central factor in nonsense-mediated decay (NMD), to increasingly attract downstream

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