Exalpha Biologicals, Inc.

Accelerating the Pace of Discovery

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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.

Acid Ceramidase 1

  • Product Code: X2668P
  • Size: 100 µg
  • Availability: In Stock In Stock
  • Price (USD): $355

Cat #

X2668P		 Quantity:      

Data Sheet

Product Name

Acid Ceramidase 1


N-acylsphingosine amidohydrolase (Acid ceramidase) 1; ASAH1





Product Type

Antigen Immunoaffinity Purified Polyclonal


Human, Rat, Mouse


Western Blotting, ELISA, Immunohistochemistry


Antigen Immunoaffiinity Purification


100 µg

Price (USD)



Acid ceramidase is a lipid hydrolyase responsible for the degradation of ceramide into sphingosine and free fatty acids within lysosomes. It can also synthesize ceramide from sphingosine and free fatty acids as well. The reverse activity is pH dependent (6.0 vs 4.5, respectively). This suggests that the enzyme may have diverse functions within cells dependent on its subcellular location and the local pH. Recent studies have shown that acid ceramidase activity is aberrantly expressed in several human cancers and that it might be a useful drug target. As an example, inhibitors of enzyme activity have been shown to slow the growth of cancer cells alone or in combination with other established, anti-oncogenic treatments. Aberrant activity has also been shown in Alzheimer?s disease and overexpression may prevent insulin resistant (Type II) diabetes by free fatty acids.


Synthetic peptide derived from the C terminal region of the ASAH1 protein.

Positive Control

Human heart tissue


Provided as solution in phosphate buffered saline with 0.08% sodium azide

Customer Storage

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

Target Molecular Weight

44 kDa

Product Image

Image Legend

Immunohistochemical staining of human heart tissue using Acid Ceramidase 1 antibody at 10 µg/ml.

Database Links:



1. Park, J.H., et al. 'Acid ceramidase and human disease.' Biochim Biophys Acta 2006; 1758:2133-2138.

2. Zeidan, Y.H., et al. 'Acid ceramidase but not acid sphingomyelinase is required for tumor necrosis factor-{alpha}-induced PGE2 production.' J. Biol. Chem. 2006; 281:24695-24703.

3. Shtraizent, N., et al. 'Autoproteolytic cleavage and activation of human acid ceramidase.' J. Biol. Chem. 2008; 283:11253-11259.