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You are here:Home » Antibodies » Antibodies-Ribosomal Proteins » Anti -Ribosomal P

Anti -Ribosomal P


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Clone Host Grade Applications
Polyclonal Human Purified E
The Ribosomal P antigen consists of three proteins of the 60S ribosomal subunit. These three proteins are designated PO (38kD), P1(19kD), and P2(17kD). Studies have suggested that one P1 homodimer and one P2 homodimer are attached to PO by the NH2-termini. P1 and P2 are believed to be the eukaryotic equivalent of the E. coli ribosomal protein L12 and have been shown to contain sequences that are highly conserved among eukaryotes. The major immunoreactive epitope of these ribosomal antigens has been mapped and is localized to the carboxy terminus. PO, P1, and P2 have an identical 17 amino acid carboxy terminus. The Ribosomal P antigens have GTPase activity and have been shown to be phosphorylated.
Catalog #R2031-25
ApplicationsSuitable for use in ELISA and Immunodiffusion. Other applications not tested.
Recommended DilutionsELISA: 1:100
Optimal dilutions to be determined by the researcher.
TiterImmunodiffusion: 1:4
ELISA ResultsInterpretation of Results: <16EU/ml: Negative; 16-20EU/ml: Equivocal; >20EU/ml: Positive
SSA: 4EU/ml
SSB, SCL: 2EU/ml
Sm: 1EU/ml
Sm/RNP: 19EU/ml
Jo-1: 3EU/ml
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer. 
CAS NumberN/A
Clone TypePolyclonal
ConcentrationNot Determined
FormSupplied as a lyophilized powder from PBS, pH 7.2, 0.02% sodium azide. Reconstitute with 2ml sterile ddH2O.
PurityImmunoglobulin fraction obtained from precipitation of delipidized and defibrinated single donor human plasma.
ImmunogenNone - this product consists of autoantibodies derived from donor human serum
SpecificityRecognizes human Ribosomal P antigen. Shows only the anti-Ribosomal P precipitin band when tested by immunodiffusion against rabbit thymus extract. Does not recognize SSA, SSB, Sm, Sm/RNP and Jo-1 antigen when used at 1:100 dilution in an ELISA system designed to detect all IgG subclasses.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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