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Key Documents

E6407

Sigma-Aldrich

Anti-eIF2Bε antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

Synonym(s):

Anti-Eukaryotic translation initiation factor 2B, ε, Anti-Eukaryotic translation initiation factor 2B, subunit 5, Anti-eIF-2B GDP-GTP exchange factor subunit epsilon

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

IgG fraction of antiserum

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~80 kDa

species reactivity

mouse, rat, human

technique(s)

indirect immunofluorescence: 1:500-1:1,000 using paraformaldehyde fixed NIH-3T3 cells.
indirect immunofluorescence: suitable
western blot: 1:500-1:1,000 using Rat1 or HEK-293T cell lysates.

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

Immunogen

synthetic peptide corresponding to amino acids 50-65 of human eIF2ε conjugated to KLH. The corresponding sequence is identical in rat and mouse.

Application

Anti-eIF2Bε antibody produced in rabbit is suitable for indirect immunofluorescence (at a dilution of 1:500-1:1,000 using paraformaldehyde fixed NIH-3T3 cells) and western blotting at a dilution of 1:500-1:1,000 using Rat1 or HEK-293T cell lysates.
Yale Center for High Throughput Cell Biology IF-tested antibodies. Each antibody is tested by immunofluorescence against HUVEC cells using the Yale HTCB IF protocol. To learn more about us and Yale Center for High Throughput Cell Biology partnership, visit sigma.com/htcb-if.

Biochem/physiol Actions

Translation initiation factor eIF-2B subunit ε is a protein encoded by the EIF2B5 gene in humans. The eIF2B is composed of five subunits α, β, γ, δ and ε, within which the ε subunit is responsible for catalyzing the guanine exchange reaction. Defect in any of these 5 subunits leads to diseases. Mutation in the subunit of eIF2B is associated with an autosomal recessive leukoencephalopathy called Vanishing white matter (VWM).

Target description

eIF2Bε encodes one of five subunits of eukaryotic translation initiation factor 2B (EIF2B), a GTP exchange factor for eukaryotic initiation factor 2 and an essential regulator for protein synthesis.

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

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificates of Analysis (COA)

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Jia Wei et al.
Protein & cell, 1(6), 595-603 (2011-01-05)
Eukaryotic translation initiation factor eIF2B, the guanine nucleotide exchange factor (GEF) for eIF2, catalyzes conversion of eIF2·GDP to eIF2·GTP. The eIF2B is composed of five subunits, α, β, γ, δ and ɛ, within which the ɛ subunit is responsible for
H D W van der Lei et al.
Neurology, 75(17), 1555-1559 (2010-10-27)
Vanishing white matter (VWM) is an autosomal recessive leukoencephalopathy characterized by slowly progressive ataxia and spasticity with additional stress-provoked episodes of rapid and major deterioration. The disease is caused by mutations in the genes encoding the subunits of eukaryotic initiation
Xuerong Leng et al.
Journal of human genetics, 56(4), 300-305 (2011-02-11)
Vanishing white matter disease (VWM) is the first human hereditary disease known to be caused by defects in initiation of protein synthesis. Gene defects in each of the five subunits of eukaryotic translation initiation factor 2B (eIF2B α-ɛ) are responsible

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