Chorionic Gonadotropin beta Chain (hCG beta) Recombinant Protein Antigen

Product Discontinued

Chorionic Gonadotropin beta Chain (hCG beta) Recombinant Protein Antigen Summary

• Description: A recombinant protein antigen with a N-terminal His6-ABP tag corresponding to human Chorionic Gonadotropin beta Chain (HCG beta)
  
  

  Source: E. coli

  Amino Acid Sequence: DHPLTCDDPRFQDSSSSKAPPPSLPSPSRL

  Fusion Tag: N-terminal His6ABP (ABP = Albumin Binding Protein derived from Streptococcal Protein G)

  This product is intended to be used as a blocking antigen for antibody competition assays. Any other use of this antigen is done at the risk of the user. The use of this product for commercial production is strictly prohibited. Please contact technical support if you have any questions.

• Source: E. coli
• Protein/Peptide Type: Recombinant Protein Antigen
• Gene: CGB3
• Purity: >80% by SDS-PAGE and Coomassie blue staining

Applications/Dilutions

• Dilutions:
  • Antibody Competition 10-100 molar excess
• Application Notes: This recombinant antigen is only intended to be used as a blocking agent to confirm antibody specificity with the corresponding antibody, catalog number NBP2-54685.

  It is purified by IMAC chromatography, and the expected concentration is greater than 0.5 mg/ml.

  For current lot information, including availability, please contact our technical support team click nb-technical@bio-techne.com

• Theoretical MW: 21 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at -20C. Avoid freeze-thaw cycles.
• Buffer: PBS and 1M Urea, pH 7.4.
• Preservative: No Preservative
• Purity: >80% by SDS-PAGE and Coomassie blue staining

Alternate Names for Chorionic Gonadotropin beta Chain (hCG beta) Recombinant Protein Antigen

• CGB
• CGB3
• CGB3choriogonadotropin subunit beta
• CGB5
• CGB7
• CGB8
• CG-Beta
• Choriogonadotropin Subunit Beta
• Chorionic gonadotrophin chain beta
• chorionic gonadotropin beta 3 subunit
• Chorionic Gonadotropin beta Chain
• chorionic gonadotropin beta subunit
• chorionic gonadotropin, beta polypeptide
• hCGB

Background

Human chorionic gonadotropin (hCG) is a glycoprotein hormone produced by trophoblastic cells of the placenta beginning 10 to 12 days after conception. Maintenance of the fetus in the first trimester of pregnancy requires the production of hCG, which binds to the corpus luteum of the ovary which is stimulated to produce progesterone which in turn maintains the secretory endometrium. hCG is present only in trace amounts in non pregnant urine and sera. It rises sharply during pregnancy. HCG is composed of two non identical, non covalently linked polypeptide chains designated as the a and b subunits. The a subunit of HCG is nearly identical to that of thyroid stimulating hormone (TSH), follicle stimulating hormone (FSH) and luteinizing hormone (LH). A germ cell tumor which is positive for cytokeratin, placental alkaline phosphatase (PLAP) and HCG but negative for EMA and AFP is probably a choriocarcinoma.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

Bioinformatics

• Gene Symbol: CGB3