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Recombinant Human CRISP-3 Protein, CF

R&D Systems, part of Bio-Techne | Catalog # 2397-CR

R&D Systems, part of Bio-Techne
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2397-CR-050

Key Product Details

Source

NS0

Accession #

Conjugate

Unconjugated

Applications

Binding Activity

Product Specifications

Source

Mouse myeloma cell line, NS0-derived human CRISP-3 protein
Asn21-Tyr245 (Ser134Ala), with a C-terminal 6-His tag

Purity

>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Asn21

Predicted Molecular Mass

26.3 kDa

SDS-PAGE

27 kDa, 31 kDa and 67 kDa, reducing conditions

Activity

Measured by its ability to bind immobilized Recombinant Human PSP94/MSMB (Catalog # 3780-PS) in a functional ELISA. Udby, L. et al. (2005) BBRC 333:555.

Formulation, Preparation and Storage

2397-CR
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution
Reconstitute at 100 μg/mL in sterile PBS.

Reconstitution Buffer Available:
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Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CRISP-3

CRISP-3 is one of three CRISPs (cysteine-rich secretory proteins) found in mammalian exocrine secretions and granulocytes that may play a role in innate immunity (1-3). CRISPs and several snake, insect, and lizard venom proteins are characterized by 16 invariant cysteine residues (4). Structurally, they consist of an N-terminal SCP domain, a hinge region, and a cysteine-rich domain (5). CRISP-3 is produced by salivary, pancreas, prostate, and lacrimal glands, as well as spermatozoa and mature spermatids (2, 6, 7). In mouse, however, CRISP-3 has not been detected in the male genital tract (8, 9). CRISP-3 is up-regulated in epithelial prostate cancer and chronic pancreatitis (10, 11). It is present as 30 kDa and 28 kDa species, corresponding to glycosylated and nonglycosylated forms (1, 3, 7, 10, 12). In serum and seminal fluid, CRISP-3 forms high affinity noncovalent complexes with the more abundant alpha1B-glycoprotein and beta-microseminoprotein/PSP94, respectively (12, 13). Binding is mediated by the SCP domain of CRISP-3 and is independent of glycosylation (12). CRISP-3 is also expressed in pre-B cells but not in T cells or monocytes (14, 15). CRISP-3 is released from neutrophil and eosinophil granules following cell stimulation (1, 15). Mature human CRISP-3 shares 48% and 65% amino acid (aa) sequence identity with mouse and equine CRISP-3, respectively. It shares 44% and 72% aa sequence identity with human CRISP-1 and -2, respectively.

References

  1. Kjeldsen, L. et al. (1996) FEBS Lett. 380:246.
  2. Kratzschmar, J. et al. (1996) Eur. J. Biochem. 236:827.
  3. Udby, L. et al. (2002) J. Immunol. Meth. 263:43.
  4. Yamazaki, Y. and Morita, T. (2004) Toxicon 44:227.
  5. Guo, M. et al. (2005) J. Biol. Chem. 280:12405.
  6. Haendler, B. et al. (1999) J. Cell. Physiol. 178:371.
  7. Udby, L. et al. (2005) J. Androl. 26:333.
  8. Haendler, B. et al. (1993) Endocrinology 133:192.
  9. Haendler, B. et al. (1997) Eur. J. Biochem. 250:440.
  10. Bjartell, A. et al. (2006) Prostate 66:591.
  11. Liao, Q. et al. (2003) Histol. Histopathol. 18:245.
  12. Udby, L. et al. (2005) Biochem. Biophys. Res. Commun. 333:555.
  13. Udby, L. et al. (2004) Biochemistry 43:12877.
  14. Pfisterer, P. et al. (1996) Mol. Cell. Biol. 16:6160.
  15. Udby, L. et al. (2002) J. Leukoc. Biol. 72:462.

Long Name

Cysteine-rich Secretory Protein 3

Alternate Names

Aeg2, CRISP3, SGP28

Entrez Gene IDs

10321 (Human); 11572 (Mouse)

Gene Symbol

CRISP3

UniProt

Additional CRISP-3 Products

Product Documents for Recombinant Human CRISP-3 Protein, CF

Certificate of Analysis

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

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Human CRISP-3 Protein, CF

For research use only

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