Depositors Notes: This antibody binds to the B-C junction of proinsulin of human and monkey and stains only intact, non-processed proinsulin found in the immature secretory granules of
islet beta-cells. It does not cross-react to insulin nor C-peptide. Cross reaction to rodent proinsulins requires aldehyde fixation.
Immunogen: Recombinant human proinsulin coupled to bovine thyroglobulin
Alternate Gene Names:
Alternate Antibody Name:
Alternate Antigen Name:
Epitope Mapped: Yes
Myeloma Strain: SP2/0-Ag14
Epitope Location or Sequence: B-C junction of proinsulin (aa 26-37)
Additional Information: Doesn't recognize bovine or porcine proinsulin.
Positive Tested Species Reactivity: Canine, Human, Monkey, Mouse, Rat
Recommended Applications: Immunofluorescence, Immunohistochemistry, Immunoprecipitation, Western Blot
These hybridomas were created by your colleagues. Please acknowledge the hybridoma contributor and the Developmental Studies Hybridoma Bank (DSHB) in the Materials and Methods of your publications. Please email the citation to us.
For your Materials & Methods section:
GS-9A8 was deposited to the DSHB by Madsen, O.D. (DSHB Hybridoma Product GS-9A8)
Storage and Handling Recommendations
Although many cell products are maintained at 4°C for years without loss of activity, shelf-life at 4°C is highly variable.
To ensure retention of antibody activity, we recommend aliquotting the product into two parts:
1) a volume of antibody stored at 4°C to be used within two weeks.
2) the remaining product diluted with an equal volume of molecular grade glycerol and stored at -20°C.
While optimal Ig concentration for an application will vary, a good starting concentration for immunohistochemistry (IHC),
immunofluorescence(IF) and staining is 2-5 µg/ml.
For Western blots, the concentration is decreased by one order of magnitude (that is, 0.2-0.5 µg/ml).
All cell products contain the antimicrobial ProClin. See our FAQ section for additional information.