Exalpha Biologicals, Inc.

Product Highlight

FIX&PERM Cell Fixation and Permeabilization Kit

Flow cytometric analyses with monoclonal antibodies were so far mainly restricted to cell surface molecules. Intracellular structures such as cytoplasmic or nuclear enzymes, oncoproteins, cytokines, immunoglobulins etc. were largely excluded from such studies. Also excluded from flow cytometric studies were cytoplasmic localizations of well-established membrane molecules like CD3 and CD22, which, in their cytoplasmic form, are the most reliable lineage markers in undifferentiated leukemia. With the FIX&PERM® Kit flow cytometric analysis of intracellular antigens has become as easy as surface antigen studies. The only prerequisite is the availability of suitable antibody conjugates. Most of the available monoclonal antibody conjugates can be used with the FIX&PERM® Kit, some determinants are sensitive, however, to the fixation step involved. This and the optimal fixation time have to be tested for each reagent.

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Exalpha Biologicals, Inc.

Ral B

  • Product Code: X1211
  • Size: 25 µg
  • Availability: In Stock In Stock
  • Price (USD): $283

Cat #

X1211		 Quantity:      

Data Sheet

Product Name

Ral B

Synonyms

RalB Recombinant G-Protein, G protein

Product Type

Recombinant Protein

Reactivity

Human

Applications

Affinity Binding

Size

25 µg

Price (USD)

$283

Background

RalB is a member of the Ras-like GTP binding protein family. Ras proteins provide a crucial link in the intracellular signalling cascades. Ras proteins are members of the small G protein family. These proteins are characterized by a molecular weight between 20 and 30 kDa, the ability to bind GTP or GDP and a low intrinsic GTPase activity. These proteins relay signals from the plasma membrane activated by receptor tyrosine kinases to the nucleus via a network of serine/threonine kinases. Ras proteins belong to a family of approximately 40 mammalian and 60 non-mammalian proteins. Ras proteins were first discovered as the hyperactive products of mutant Ras genes which promote cancer by disrupting the normal controls on cell proliferation and differentiation; about 30% of human cancers have mutations in a Ras gene. Ras and Ras-like proteins function as switches, cycling between 2 distinct conformational states, active when GTP is bound and inactive when GDP is bound. Affinity precipitation assays can be used to determine the activation status of Ras and Ras-like family members. This assay is based on the ability of the Ras family effector proteins to interact specifically with the activated GTP-bound form of their target GTPases.

Immunogen

Recombinant GST protein from E. Coli

Formulation

Provided in 50mM Tris (pH 7.5) solution containing 150 mM NaCl, 10 mM MgCl2, 1 mM DTT, 10% glycerol

Customer Storage

Product should be stored at -70°C. Aliquot to avoid freeze/thaw cycles

Database Links:

SwissProtP11234Human

References

1. Zhao, Z. & Rivkees, S.A., Tissue-specific expression of GTPase RalA and RalB during embryogenesis and regulation by epithelial-mesenchymal interaction. Mech. Dev. 2000, 97, 201-204

2. Bhullar, R.P. & Yang, S., Immunodetection of ralA and ralB GTP-binding proteins in various rat tissues and platelets. Mol. Cell Biochem. 1998, 179, 49-55

3. Jilkina, O. & Bhullar, R.P., Generation of antibodies specific for the RalA and RalB GTP-binding proteins and determination of their concentration and distribution in human platelets. Biochim. Biophys. Acta 1996, 1314, 157-166