Human Reg1A/B Alexa Fluor® 647-conjugated Antibody

Catalog #: AF4937R Datasheet / COA / SDS

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AF4937R-100UG

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Human Reg1A/B Alexa Fluor® 647-conjugated Antibody Summary

Species Reactivity

Human

Specificity

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 re

Source

Polyclonal Sheep IgG

Purification

Antigen Affinity-purified

Immunogen

Chinese hamster ovary cell line CHO-derived recombinant human Reg1A
Gln23-Asn166
Accession # P05451

Formulation

Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Label

Alexa Fluor 647 (Excitation= 650 nm, Emission= 668 nm)

Applications

Recommended Concentration

Sample

Western Blot

Optimal dilution of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilution of this antibody should be experimentally determined.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Shipping

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

Stability & Storage

Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied

Background: Reg1A

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.

Long Name

Regenerating Islet-derived 1A

Entrez Gene IDs

5967 (Human)

Alternate Names

ICRF; Islet cells regeneration factor; Islet of Langerhans regenerating protein; lithostathine-1-alpha; P19; pancreatic stone protein, secretory; Pancreatic thread protein; protein-X; PSP; PSPS; PSPS1; PTP; REG; Reg1A; REG-1-alpha; Regenerating islet-derived protein 1-alpha; Regenerating protein I alpha