Prostate Specific Acid Phosphatase (PSAP)
Prostate specific acid phosphatase (PSAP)
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Antigen Preparation
Partially purified prostate acid phosphatase from human seminal plasma.
Background
"Prostate specific acid phosphatase (PSAP) is a 100 kD glycoprotein present in high concentration in the prostate gland and its secretions. It is one of the two antigenic markers of prostatic carcinoma, the other being prostate specific antigen. It belongs to the kallikrein family of serine proteases and is suggested to act as a hydrolase to split phospharyl choline in semen and as a transferase. PSAP is measured clinically because its level often rises in the serum in cases of prostatic carcinoma. By immunohistochemical analysis PSAP has been found concentrated within the large secretory vacuoles of the supranuclear portion of the prostatic columnar epithelial cell. In hyperplastic prostates and in benign prostatic tissue adjacent to the prostatic carcinoma, PSAP activity is limited to the acinar or ductal columnar epithelial cells and adjacent luminal content. PSAP reactivity in an extraprostatic tumor is an accurate and sensitive indicator of metastatic prostatic carcinoma"
PURIFICATION
The mouse IgG is purified by Protein A-Affinity Chromatography according to Isotyping
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SPECIFICITY
This antbody recognizes human and rat PSAP. The other species not tested.
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FORMULATION
This affinity purified antibody is supplied in sterile Phosphatebuffered saline (pH7.2) containing antibody stabilizer
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STORAGE
The antibodies are stable for 24 months from date of receipt when stored at –20oC to –70oC. The antibodies can be stored at 2oC-8oC for three month without detectable loss of activity. Avoid repeated freezing-thawing cycles.
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Applications/Suggested Working Dilutions
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Immunoprecipitation
2-5 µg/ml
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Flow cytometry
Not tested
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