Human Trypsin 3/PRSS3 Alexa Fluor™ Plus 488-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # FAB37101AFP488

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FAB37101AFP488-100UG
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Key Product Details

Species Reactivity

Human

Applications

Western Blot

Label

Alexa Fluor Plus 488 (Excitation = 493 nm, Emission = 518 nm)

Antibody Source

Monoclonal Rat IgG2A Clone # 420012

View all Trypsin 3/PRSS3 Antibodies »

Product Specifications

Specificity

Detects human Trypsin 3/PRSS3 in direct ELISAs and Western blots. Detects both pro and mature forms of Trypsin 3 in Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) Trypsin 1, 2, recombinant mouse Trypsin 3, or Chymostrypsin is observed.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2A

Applications

Application
Recommended Usage

Western Blot

Optimal dilution of this antibody should be experimentally determined.

Background: Trypsin 3/PRSS3

Human Trypsin 3, encoded by the PRSS3 gene, is also known as mesotrypsin (1). Constituting less than 10% of the total trypsin content in normal pancreatic juice, it is one of the three trypsin isoforms produced by the pancreas (2). Compared to Trypsin 1 and 2, one intriguing feature of Trypsin 3 is its resistance to polypeptide trypsin inhibitors, such as the Kunitz-type soybean trypsin inhibitor or the Kazal-type pancreatic secretory trypsin inhibitor. As revealed by the crystal structure, this resistance is likely due to the presence of an arginine residue in place of the highly conserved Gly198 (3). Trypsin 3 is synthesized in the pancreas and secreted into the duodenum lumen, where it is activated by enterokinase. One physiologic function of Trypsin 3 has been proposed to be degradation of trypsin inhibitors, which facilitates the digestion of those foods rich in these proteins (4).The amino acid sequence of human Trypsin 3 shares 76%, 74%, 72% and 67% identity with that of rat, mouse, dog and chicken, respectively.

References

  1. Nyaruhucha, C.N.M. et al. (1997) J. Biol. Chem. 272:10573.
  2. Rinderknecht, H. et al. (1984) Gastroenterology 86:681.
  3. Katona, G. et al. (2002) J. Mol. Biol. 315:1209.
  4. Szmola, R. et al. (2003) J. Biol. Chem. 278:48580.

Alternate Names

Mesotrypsin, MTG, PRSS3, PRSS4, Trypsin 4, Trypsinogen 15

Entrez Gene IDs

5646 (Human); 22073 (Mouse); 362347 (Rat)

Gene Symbol

PRSS3

UniProt

NP_002762

Additional Trypsin 3/PRSS3 Products

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Certificate of Analysis

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Product Specific Notices


This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

For research use only

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