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.


Welcome, Peter Rutten

We are pleased to announce that Peter Rutten has now started in his role as Operations Director here at Exalpha Biologicals Inc. Peter has a Master’s of Science degree in Industrial and Organizational Psychology and this has lead him down a very business orientated career path. Peter is looking forward to working with the team at Exalpha. Peters primary focus is the customer experience and he will be working with the Laboratory team, the Quality Control team and the Order Processing team to ensure this focus is achieved. We all wish Peter well in his new role.

Exalpha Biologicals, Inc.


  • Product Code: X1889M
  • Size: 100 µg
  • Availability: In Stock In Stock
  • Price (USD): $397

Cat #

X1889M		 Quantity:      

Data Sheet

Product Name



Protein Kinase B, RAC-alpha, EC, RAC-PK-alpha, PKB, C-AKT







Product Type

Monoclonal Antibody


Human, Mouse, Rat others not tested


Western Blot


Purified from ascites by affinity chromatography.


100 µg

Price (USD)



AKT is a serine/threonine kinase that plays an important role in multiple biological responses including metabolism, cell survival and growth by phosphorylating many proteins including GSK-3 , caspase-9, BAD, and the Forkhead Transcription Factor. AKT is activated by PI3K, which in turn can interact with FAK and other cytoskeletal-associated proteins, thereby linking activation to the cytoskeleton. AKT/PKB is constitutively active in many types of human cancer, and contributes to tumor progression by promoting angiogenesis and cell invasiveness. AKT is fully activated by phosphorylation of threonine 308 by PDK1 and serine 473 by PDK2. The reactivity of this antibody with AKT2 and AKT3 has not been tested.


Recombinant human AKT1 protein.

Positive Control

Positive Control: Human Jurkat cells, mouse 3T3-L1 cells, and rat PC-12 cells. Found in all human cell types so far analyzed. Found in the cytoplasm (and in the nucleus after activation by integrin-linked protein kinase 1)


Provided as solution in phosphate buffered saline pH 7.2 with 0.1% BSA and 0.01% sodium azide

Customer Storage

Product should be stored at -20°C. Aliquot to avoid freeze/thaw cycles

Target Molecular Weight

60 kDa

Product Image

Image Legend

Proteins from cell extracts of human Jurkat cells (lane 1), mouse 3T3-L1 cells (lane 2), and rat PC-12 cells (lane 3) were resolved by SDS-PAGE and transferred to PVDF. The membranes were incubated with this AKT monoclonal antibody (clone 9Q7) at a concentration of 1 µg/mL for two hours at room temperature. After washing, the membranes were incubated with a goat F(ab?)2 anti-mouse IgG alkaline phosphatase conjugated antibody (Cat. # AMI4405) at a 1:2000 dilution. Bands were detected with CDP-substrate using the WesternStarTM method (Tropix) and Kodak BioMax film.

Database Links:



1. Beffert, U., et al. (2002) Reelin-mediated signaling locally regulates protein kinase B/Akt and glycogen synthase kinase 3beta. J. Biol. Chem. 277(51):49958-49964.
2. Hsu, J., et al. (2001) The AKT kinase is activated in multiple myeloma tumor cells. Blood 98(9):2853-2855.
3. Persad, S., et al. (2001) Regulation of protein kinase B/Akt-threonine-308 phosphorylation by integrin linked kinase (ILK): Critical roles for kinase activity and amino acids arginine-211 and threonine-343. J. Biol. Chem. 276(29):27462-27469.
4. Nelson, J.M. and D.W. Fry (2001) Akt, MAPK (Erk1/2), and p38 act in concert to promote apoptosis in response to ErbB receptor family inhibition. J. Biol. Chem. 276(18):14842-14847.
5. Genot, E.M., et al. (2000) The T-cell receptor regulates Akt (Protein Kinase B) via a pathway involving Rac1 and phosphatidylinositide 3-kinase. Mol. Cell. Biol. 20(15):5469-5478.
6. Datta, S.R., et al. (1997) Akt phosphorylation of BAD couples survival signals to the cell- intrinsic death machinery. Cell 91(2):231-241.
7. del Peso, L., et al. (1997) Interleukin-3-induced phosphorylation of BAD through the protein kinase Akt. Science 278(5338):687-689.
8. Dudek, H., et al. (1997) Regulation of neuronal survival by the serine-threonine protein kinase Akt. Science 275(5300):661-665.
9. Franke, T.F., et al. (1997) PI3K: downstream AKT phosphorylation blocks apoptosis. Cell 88(4):435-437.