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eIF2α Rabbit mAb (A21221)

Tested applications:WB IHC-P IF/ICC IP ChIP ChIP-seq RIP FC FC(Intra)ELISA MeDIP Nucleotide Array DB FACS CoIP CUT&Tag meRIP InhibitionReactivity:Human, Mouse, Rat

Western blot analysis of various lysates using eIF2α Rabbit mAb (A21221) at1:4000 dilution.
Secondary antibody: HRP-conjugated Goat anti-Rabbit IgG (H+L) (AS014) at 1:10000 dilution.
Lysates/proteins: 25μg per lane.
Blocking buffer: 3% nonfat dry milk in TBST.
Detection: ECL Basic Kit (RM00020).
Exposure time: 3s.

ABclonal:Immunofluorescence - eIF2α Rabbit mAb (A21221)

Confocal imaging of HeLa cells using eIF2α Rabbit mAb (A21221, dilution 1:500)(Red). The cells were counterstained with α-Tubulin Mouse mAb (AC012, dilution 1:400) (Green). DAPI was used for nuclear staining (blue). Objective: 100x.

Overview

Product name	eIF2α Rabbit mAb
Catalog No.	A21221
Host species	Rabbit
Purification method	Affinity purification
Isotype	IgG
CloneNo.	ARC52379

Background

The translation initiation factor EIF2 catalyzes the first regulated step of protein synthesis initiation, promoting the binding of the initiator tRNA to 40S ribosomal subunits. Binding occurs as a ternary complex of methionyl-tRNA, EIF2, and GTP. EIF2 is composed of 3 nonidentical subunits, the 36-kD EIF2-alpha subunit (EIF2S1), the 38-kD EIF2-beta subunit (EIF2S2; MIM 603908), and the 52-kD EIF2-gamma subunit (EIF2S3; MIM 300161). The rate of formation of the ternary complex is modulated by the phosphorylation state of EIF2-alpha (Ernst et al., 1987 [PubMed 2948954]).

Immunogen information

Immunogen	Recombinant fusion protein containing a sequence corresponding to amino acids 1-315 of human eIF2α (NP_004085.1).
Sequence	MPGLSCRFYQHKFPEVEDVVMVNVRSIAEMGAYVSLLEYNNIEGMILLSELSRRRIRSINKLIRIGRNECVVVIRVDKEKGYIDLSKRRVSPEEAIKCEDKFTKSKTVYSILRHVAEVLEYTKDEQLESLFQRTAWVFDDKYKRPGYGAYDAFKHAVSDPSILDSLDLNEDEREVLINNINRRLTPQAVKIRADIEVACYGYEGIDAVKEALRAGLNCSTENMPIKINLIAPPRYVMTTTTLERTEGLSVLSQAMAVIKEKIEEKRGVFNVQMEPKVVTDTDETELARQMERLERENAEVDGDDDAEEMEAKAED
Gene ID
Swiss Prot
Synonyms	EIF2; EIF-2; EIF2A; EIF-2A; EIF-2alpha; eIF2α
Calculated MW	36kDa
Observed MW	38kDa

Applications

Reactivity	Human, Mouse, Rat
Tested applications	WB IHC-P IF/ICC IP ChIP ChIP-seq RIP FC FC(Intra)ELISA MeDIP Nucleotide Array DB FACS CoIP CUT&Tag meRIP Inhibition
Recommended dilution	WB 1:4000 - 1:16000 IF/ICC 1:200 - 1:1000 ELISA Recommended starting concentration is 1 μg/mL. Please optimize the concentration based on your specific assay requirements.
Storage buffer	Store at -20℃. Avoid freeze / thaw cycles. Buffer: PBS with 0.05% proclin300, 0.05% BSA, 50% glycerol, pH7.3.
Key application	Western blotting Immunofluorescence
Positive samples	HeLa, MCF7, 293F, NIH/3T3, PC-12
Cellular location	Cytoplasm, Stress granule .
Customer validation	WB(Homo sapiens, Mus musculus) IF(Homo sapiens) Other(Homo sapiens)