Key Product Details

Species Reactivity

Human

Applications

Western Blot

Label

CoraFluor 1

Antibody Source

Polyclonal Goat IgG

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

View all PSP94/MSMB Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human PSP94 isoform 1 (R&D Systems, Catalog # 3780-PS)
Ser21-Ile114
Accession # P08118

Specificity

Detects human PSP94 in direct ELISAs and Western blots.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications for PSP94/MSMB Antibody [CoraFluor™ 1]

Application
Recommended Usage

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Formulation

PBS

Preservative

No Preservative

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark. Do not freeze.

Background: PSP94/MSMB

PSP94 (prostate secretory protein of 94 amino acids; also named beta-MSP) is a secreted, non-glycosylated member of the beta-microseminoprotein family. The 94 amino acid (aa) mature PSP94 contains no classic motifs or domains, but does have ten Cys that are conserved across species. It is expressed in mucoid secretions, but its function is unknown. PSP94 is abundant in prostatic fluid, which is the exclusive source in rodents. Gastric and respiratory secretory epithelia are also significant sources in humans. Human PSP94 circulates bound to a 71 kDa PSP binding protein, possibly disulfide-linked. The seminal fluid protein CRISP-3 can also bind PSP94. PSP94 has been proposed as an alternative to PSA as a serum marker for prostate cancer. When total (bound plus free) PSP94 is considered, its secretion is found to be down-regulated in cancer cells, creating below normal circulating levels. Its size is predicted at 11 kDa, but may appear to be 16 kDa due to anomalous migration. A 61 aa variant, formed by C-terminal proteolysis, is increased in prostate secretions from patients with benign prostatic hyperplasia. A prostate-specific alternate splice form shows a substitution of 41 aa for the C-terminal 78 aa. Mature human PSP94 shares 53%, 46%, 43%, and 42% aa identity with porcine, rat, mouse, and chicken PSP94, respectively. Most of the ten primate sequences available show less than 80% aa identity. PSP94 has been proposed as a species barrier protein due to its low evolutionary conservation and abundance in seminal fluid.

Long Name

Prostate Secretory Protein of 94 Amino Acids/Microseminoprotein, beta

Alternate Names

IGBF, MSMB, MSPB, PIP, PN44, PRPS, PSP57

Gene Symbol

MSMB

Additional PSP94/MSMB Products

Product Documents for PSP94/MSMB Antibody [CoraFluor™ 1]

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Download SDS

Product Specific Notices for PSP94/MSMB Antibody [CoraFluor™ 1]

CoraFluor (TM) is a trademark of Bio-Techne Corp. Sold for research purposes only under agreement from Massachusetts General Hospital. US patent 2022/0025254

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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