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S0698

Sigma-Aldrich

Anti-SmB antibody, Mouse Monoclonal

clone 12F5, purified from hybridoma cell culture

Synonym(s):

Anti-SNRPB1, Anti-Sm protein B, Anti-Sm-B, Anti-SmB/SmB, Anti-Small nuclear ribonucleoprotein associated protein B, Anti-snRNP-B

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

Quality Level

200

conjugate

unconjugated

antibody form

purified from hybridoma cell culture

antibody product type

primary antibodies

clone

12F5, monoclonal

mol wt

antigen ~25 kDa

species reactivity

human, mouse, canine

technique(s)

immunocytochemistry: suitable
immunoprecipitation (IP): suitable
indirect ELISA: suitable
western blot: 0.5-1 μg/mL using HeLa nuclear cell extract

isotype

IgG1

UniProt accession no.

P14678

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... SNRPB(6628)
mouse ... Snrpb(20638)

General description

Monoclonal Anti-SmB (mouse IgG1 isotype) is derived from the hybridoma 12F5-H3.D8 produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice immunized with an SmB recombinant protein.
SNRPB (small nuclear ribonucleoprotein-associated protein B) is an important constituent of the spliceosome. It codes for SmB/B′ (small nuclear ribonucleoprotein polypeptides B and B1). It is located on human chromosome 20p13. SmB′/B are upregulated in all tissues excluding postnatal brain.

Immunogen

SmB recombinant protein.

Application

  • Monoclonal Anti-SmB antibody produced in mouse has been used in:
  • western blotting
  • enzyme-linked immunosorbent assay (ELISA)
  • immunoprecipitation
  • immunocytochemistry

Biochem/physiol Actions

SNRPB (small nuclear ribonucleoprotein-associated protein B) mutations results in cerebro-costo-mandibular syndrome. Downregulation of SNRPB affects the upregulation and processing of RNA splicing machinery components. It also plays a major role in RNA stability.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Integrative analysis of mRNA expression and half-life data reveals trans-acting genetic variants associated with increased expression of stable transcripts
Nguyen TT and Seoighe C
PLoS ONE, 8(11) (2013)
U7 snRNP is recruited to histone pre-mRNA in a FLASH-dependent manner by two separate regions of the stem-loop binding protein
Skrajna A, et al.
RNA, 23(6), 938-951 (2017)
Concerted regulation and molecular evolution of the duplicated SNRPB'/B and SNRPN loci
Gray TA, et al.
Nucleic Acids Research, 27(23), 4577-4584 (1999)
SmD3 regulates intronic noncoding RNA biogenesis
Scruggs BS, et al.
Molecular and Cellular Biology, 32(20), 4092-4103 (2012)
Michael Briese et al.
Nature structural & molecular biology, 26(10), 930-940 (2019-10-02)
Studies of spliceosomal interactions are challenging due to their dynamic nature. Here we used spliceosome iCLIP, which immunoprecipitates SmB along with small nuclear ribonucleoprotein particles and auxiliary RNA binding proteins, to map spliceosome engagement with pre-messenger RNAs in human cell
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