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Novocastra TM Lyophilized Mouse Monoclonal AntibodyCD31 (PECAM-1)Product Code: NCL-CD31-1A10Intended UseFor in vitro diagnostic use.NCL-CD31-1A10 is intended for the qualitative identification by light microscopy of CD31 (PECAM-1) molecules in paraffin sections. Theclinical interpretation of any staining or its absence should be complemented by morphological studies using proper controls and shouldbe evaluated within the context of the patient’s clinical history and other diagnostic tests by a qualified pathologist.Principle of ProcedureImmunohistochemical (IHC) staining techniques allow for the visualization of antigens via the sequential application of a specific antibodyto the antigen (primary antibody), a secondary antibody to the primary antibody and an enzyme complex with a chromogenic substratewith interposed washing steps. The enzymatic activation of the chromogen results in a visible reaction product at the antigen site. Thespecimen may then be counterstained and coverslipped. Results are interpreted using a light microscope and aid in the differentialdiagnosis of pathophysiological processes, which may or may not be associated with a particular antigen.Clone1A10ImmunogenProkaryortic recombinant fusion protein corresponding to a portion of the extracelleular domain downstream of the signal sequence ofthe CD31 (PECAM-1) molecule.SpecificityHuman CD31 (PECAM-1) molecule.Reagent CompositionNCL-CD31-1A10 is a lyophilized tissue culture supernatant containing 15 mM sodium azide as a preservative. The user is required toreconstitute the contents of the vial with the correct volume of sterile distilled water as indicated on the vial label.Ig classIgG1Total Protein ConcentrationTotal Protein1.0–8.0 g/L. Refer to vial label for lot specific total protein concentration.Antibody ConcentrationGreater than or equal to 57 mg/L as determined by ELISA. Refer to vial label for batch specific Ig concentration.Recommendations On UseImmunohistochemistry (see D. Methodology) on paraffin sections. Suggested dilution: 1:50–1:100 for 60 minutes at 25 o C. Hightemperature antigen retrieval using 0.01 M citrate retrieval solution (pH 6.0) is recommended. This is provided as a guide and usersshould determine their own optimal working dilutions.Storage and StabilityStore unopened antibody at 2–8 o C. Under these conditions, there is no significant loss in product performance up to the expiry dateindicated on the vial label. Do not use after expiration date indicated on the vial label. The reconstituted antibody is stable for at least twomonths when stored at 2–8 o C. For long term storage, it is recommended that aliquots of the reconstituted antibody are stored frozen at-20 o C (frost-free freezers are not recommended). Repeated freezing and thawing must be avoided. Prepare working dilutions on the dayof use. Return to 2–8 o C immediately after use. Storage conditions other than those specified above must be verified by the user.Specimen PreparationThe recommended fixative is 10% neutral-buffered formalin for paraffin-embedded tissue sections.Warnings and PrecautionsThis reagent has been prepared from the supernatant of cell culture. As it is a biological product, reasonable care should be taken whenhandling it.The molarity of sodium azide in this reagent is 15 mM. A Material Safety Data Sheet (MSDS) is available upon request for sodium azide.Consult federal, state or local regulations for disposal of any potentially toxic components.Specimens, before and after fixation, and all materials exposed to them, should be handled as if capable of transmitting infection anddisposed of with proper precautions. 1 Never pipette reagents by mouth and avoid contacting the skin and mucous membranes withreagents and specimens. If reagents or specimens come in contact with sensitive areas, wash with copious amounts of water. Seekmedical advice.Minimize microbial contamination of reagents or an increase in non-specific staining may occur.Incubation times or temperatures, other than those specified, may give erroneous results. Any such changes must be validated by theuser.NCL-CD31-1A10Page 2