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Human SIRP alpha/CD172a
Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB45461

R&D Systems, part of Bio-Techne
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MAB45461-100
MAB45461-SP

Key Product Details

Species Reactivity

Human

Applications

ELISA

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # 602404

Product Specifications

Immunogen

Chinese hamster ovary cell line CHO-derived recombinant human SIRP alpha/CD172a
Gly27-Asn370
Accession # P78324

Specificity

Detects human SIRP alpha/CD172a in ELISA.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for Human SIRP alpha/CD172a Antibody

Human SIRP alpha/CD172a ELISA Standard Curve.

Recombinant Human SIRP alpha/CD172a protein was serially diluted 2-fold and captured by Mouse Anti-Human SIRP alpha/CD172a Monoclonal Antibody (Catalog # MAB45462) coated on a Clear Polystyrene Microplate (Catalog # DY990). Mouse Anti-Human SIRP alpha/CD172a Monoclonal Antibody (Catalog # MAB45461) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998) followed by Substrate Solution (Catalog # DY999) and stopping the enzymatic reaction with Stop Solution (Catalog # DY994).

Applications for Human SIRP alpha/CD172a Antibody

Application
Recommended Usage

ELISA

This antibody functions as an ELISA detection antibody when paired with Mouse Anti-Human SIRP alpha/CD172a Monoclonal Antibody (Catalog # MAB45462).

This product is intended for assay development on various assay platforms requiring antibody pairs. We recommend the Human SIRP alpha DuoSet ELISA (Catalog # DY4546-05) for convenient development of a sandwich ELISA.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
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Formulation

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.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: SIRP alpha/CD172a

SIRP alpha (Signal regulatory protein alpha; also SHPS1 and BIT) is a variably glycosylated 90-120 kDa member of the SIRP family of proteins.  It is widely expressed, being found on neurons, microglia/macrophages, endothelium, and fibroblasts.  SIRP alpha has a variety of functions, including presynsptic organization, inhibition of integrin action, and induction of myogenesis.  It binds to CD47 and likely other ligands.  Mature human SIRP alpha is a 477 amino acid (aa) type I transmembrane glycoprotein.  It contains an extracellular region (aa 27-372) that shows one V-type Ig-like (aa 32-137) and two C2-type Ig-like domains (aa 147-347).  Its cytoplasmic domain possesses two ITIMs which interact with protein tyrosine phosphatases.  There is one alternative start site at Met102 plus a four aa insertion after Gln421.  Over aa 27-370, human SIRP alpha shares 61% aa identity with mouse SIRP alpha.

Long Name

Signal-regulatory Protein alpha

Alternate Names

BIT, CD172a, MFR, MYD-1, SHPS1, SIRPA

Entrez Gene IDs

140885 (Human); 19261 (Mouse); 25528 (Rat); 494566 (Porcine); 609452 (Canine); 101926317 (Cynomolgus Monkey)

Gene Symbol

SIRPA

UniProt

Additional SIRP alpha/CD172a Products

Product Documents for Human SIRP alpha/CD172a Antibody

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 Human SIRP alpha/CD172a Antibody

For research use only

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