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  • SAB4500696 - Anti-EFNA1 antibody produced in rabbit

SAB4500696 Sigma-Aldrich

Anti-EFNA1 antibody produced in rabbit

affinity isolated antibody

Synonym: B61, ECKLG, EFL1, EPH-related receptor tyrosine kinase ligand 1, ephrin-A1



Related Categories Alphabetical Index, Antibodies, E-EI, Primary Antibodies
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   ELISA: 1:10000
  immunofluorescence: 1:100-1:500
  western blot: 1:500-1:1000
species reactivity   mouse, rat, human
mol wt   antigen 23 kDa
form   buffered aqueous solution
shipped in   wet ice
storage temp.   −20°C
antibody form   affinity isolated antibody
antibody product type   primary antibodies
concentration   ~1 mg/mL
NCBI accession no.   P20827
UniProt accession no.   P20827
Gene Information   human ... EFNA1(1942)


General description

EphrinA1 (EFNA1), also known as angiogenesis factor, is encoded by the gene mapped to human chromosome 1q21-22. The encoded protein belongs to subclass A of ephrin family. EFNA1 is localized to cell membrane via a glycosylphosphatidylinositol (GPI) moiety. EFNA1 ligand preferentially binds to the receptor tyrosine kinase, Eph receptor 2 (EphA2).


The antiserum was produced against synthesized peptide derived from human EFNA1.

Immunogen Range: 66-115


Anti-EFNA1 antibody produced in rabbit has been used in western blot analysis.

Physical form

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.


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.

Biochem/physiol Actions

EphrinA1 (EFNA1) and its primary receptor, Eph receptor 2 (EphA2) are associated with various cancers, such as urinary bladder carcinoma, breast cancer gastric cancer, glioma and malignant mesothelioma. Expression pattern of EFNA1 can be used as a potential prognostic marker in colorectal cancer (CRC) patients and other human malignancies. Experimental studies state that, EphrinA1 (EFNA1) can be involved in both tumor promotion and inhibition, based on whether ephrin-A1 is bound to the receptor in soluble or membrane bound form, respectively. Activation of EphA2, induces indirect growth signal by overcoming ‘contact inhibition’.

Features and Benefits

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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