Reg1A/B Antibody [Unconjugated]


Western blot shows lysates of human pancreas tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human Reg1A Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4937) followed by HRP-conjugated more
Reg1A was detected in immersion fixed paraffin-embedded sections of human pancreas using Sheep Anti-Human Reg1A Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4937) at 3 µg/mL overnight at 4 °C. Before more

Product Details

Reactivity HuSpecies Glossary
Applications WB, IHC

Order Details

View Available Formulations
Catalog# & Formulation Size Price

Reg1A/B Antibody [Unconjugated] Summary

Chinese hamster ovary cell line CHO-derived recombinant human Reg1A
Accession # P05451
Detects human Reg1A in direct ELISAs. In direct ELISAs, approximately 80% cross-reactivity with recombinant human (rh) Reg1B is observed, approximately 20% cross-reactivity with recombinant mouse Reg1, and less than 5% cross-reactivity with rhReg3A and recombinant rat Reg1A is observed. 100% cross-reactivity with rhReg1B in Western blot is observed.
Purity Statement
Antigen Affinity-purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.


  • Immunohistochemistry 5-15 ug/mL
  • Western Blot 1 ug/mL

Packaging, Storage & Formulations

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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
No Preservative
Reconstitution Instructions
Sterile PBS to a final concentration of 0.2 mg/mL.


This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Reg1A/B Antibody [Unconjugated]

  • Reg1A/B


Reg1A (Regenerating gene IA/ alpha ; also REG, ICRF, PSPS, PTP and Lithostathine-1 alpha ) is a secreted, variably glycosylated 15-22 kDa type I member of the REG gene family of proteins. It is induced in proliferating cell types such as colonic epithelium, islet beta -cells, and multiple tumor types, and is constitutively expressed by pancreatic acinar cells. Thus, Reg1A is found both in blood (ng/mL quantities) and pancreatic secretions. It would appear that Reg1A plays a role in blocking apoptosis, and is upregulated by both IL-22 and IL-6. Human Reg1A is synthesized as a 166 amino acid (aa) precursor. It contains a 22 aa signal sequence plus a 144 aa mature region that is characterized by the presence of three intrachain disulfide bonds, one C-type lectin domain (aa 34-164), and a utilized N-terminal O-linked glycosylation site (Thr27). Variablility in the glycosylation pattern, plus proteolytic cleavage after Arg11 generates Reg1A isoforms in the 15-22 kDa range. There is one potential isoform variant that shows an alternative start site at Met9. Mature (aa 23-166) human Reg1A shares 76% and 69% aa sequence identity with mouse and rat Reg1A, respectively.

Reg1B, also known as secretory pancreatic stone protein 2 and lithostathine 1 beta, is a type I subclass member of the Reg family, which comprises secreted proteins with a C-type lectin domain. Reg1B is highly related to Reg1A, a protein that is implicated in islet cell regeneration and diabetogenesis.


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.

Publications for Reg1A/B Antibody (AF4937) (0)

There are no publications for Reg1A/B Antibody (AF4937).
By submitting your publication information earn gift cards and discounts for future purchases.

Reviews for Reg1A/B Antibody (AF4937) (0)

There are no reviews for Reg1A/B Antibody (AF4937). By submitting a review you will receive an Amazon e-Gift Card or Novus Product Discount.
  • Review with no image -- $10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen
  • Review with an image -- $25/€18/£15/$25 CAD/¥150 Yuan/¥2500 Yen

Product General Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

Video Protocols

WB Video Protocol

FAQs for Reg1A/B Antibody (AF4937) (0)

There are no specific FAQs related to this product. Read our general customer & technical service FAQs.

Secondary Antibodies


Isotype Controls

Additional Reg1A/B Products

Array AF4937

Bioinformatics Tool for Reg1A/B Antibody (AF4937)

Discover related pathways, diseases and genes to Reg1A/B Antibody (AF4937). Need help? Read the Bioinformatics Tool Guide for instructions on using this tool.
Visit Tool

Blogs on Reg1A/B

There are no specific blogs for Reg1A/B, but you can read our latest blog posts.
Download our IHC Handbook

Contact Information

Product PDFs


Concentration Calculator

The concentration calculator allows you to quickly calculate the volume, mass or concentration of your vial. Simply enter your mass, volume, or concentration values for your reagent and the calculator will determine the rest.


Review this Product

Be the first to review our Reg1A/B Antibody [Unconjugated] and receive a gift card or discount.


Gene Symbol REG1A