Calretinin Antibody


Western Blot: Calretinin Antibody [NBP1-30050] - Rat cerebellum (CB) lysate showing specific immunolabeling of the ~ 29k calretinin protein.
Immunohistochemistry: Calretinin Antibody [NBP1-30050] - Immunostaining of rat cerebellum showing fluorescence of calretinin containing cells.

Product Details

Reactivity RtSpecies Glossary
Applications WB, IHC, IF
Please see the vial label for concentration. If unlisted please contact technical services.

Order Details

Calretinin Antibody Summary

Purified guinea pig calretinin
Mesothelial Cell Marker
Specific for the ~29 kDa Calretinin protein in Western blots. The antibody also works well for immunohistochemistry on formalin or paraformaldehyde perfused rat brain tissue sections.
Protein A purified
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Packaging, Storage & Formulations

Store at -20C. Avoid freeze-thaw cycles.
10 mM Tris,100 mM NaCl.
No Preservative
Please see the vial label for concentration. If unlisted please contact technical services.
Protein A purified

Reactivity Notes

Tested in Rat. It is expected that this antibody will also react with human, mouse and non-human primates.

Alternate Names for Calretinin Antibody

  • 29 kDa calbindin
  • CAB29
  • CAL2
  • CALB2
  • calbindin 2
  • calbindin 2, (29kD, calretinin)
  • calbindin 2, 29kDa (calretinin)
  • calbindin D29K
  • calretinin
  • CR


Calbindin 2 (calretinin), closely related to calbindin 1, is an intracellular calcium-binding protein belonging to the troponin C superfamily. Calbindin 1 is known to be involved in the vitamin-D-dependent calcium absorption through intestinal and renal epithelia, while the function of neuronal calbindin 1 and calbindin 2 is poorly understood. The sequence of the calbindin 2 cDNA reveals an open reading frame of 271 codons coding for a protein of 31,520 Da, and shares 58% identical residues with human calbindin 1. Calbindin 2 contains five presumably active and one presumably inactive calcium-binding domains. Comparison with the partial sequences available for chick and guinea pig calbindin 2 reveals that the protein is highly conserved in evolution. The calbindin 2 message was detected in the brain, while absent from heart muscle, kidney, liver, lung, spleen, stomach and thyroid gland. There are two additional forms of alternatively spliced calbindin 2 mRNAs encoding C-terminally truncated proteins. Exon 7 can splice to exon 9, resulting in a frame shift and a translational stop at the second codon of exon 9, and encoding calretinin-20k. Exon 7 can also splice to exon 10, resulting in a frame shift and a translational stop at codon 15 of exon 10, and encoding calretinin-22k. The truncated proteins are able to bind calcium.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Video Protocols

WB Video Protocol

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Secondary Antibodies


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Product PDFs


Gene Symbol CALB2

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