Human Osteoadherin/OSAD Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAF2884
Product Details
Citations (1)
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Human Osteoadherin/OSAD Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human Osteoadherin/OSAD in Western blots. In Western blots, approximately 40% cross-reactivity with recombinant mouse OSAD is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Osteoadherin/OSAD
Gln21-Glu421 (Phe67Leu)
Accession # Q99983.1
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human Osteoadherin/OSAD (Catalog # 2884-AD)

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

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Osteoadherin/OSAD

Osteoadherin (OSAD), also known as Osteomodulin, is an extracellular matrix keratan sulfate proteoglycan that belongs to the class II subfamily of small leucine-rich proteoglycans (SLRP). LRR motifs consist of approximately 20‑30 amino acids (aa) with conserved leucine spacing, folded into a structure with one beta -sheet and one alpha -helix (1, 2). The human OSAD cDNA encodes a 421 aa precursor that contains a 20 aa signal sequence and eleven tandem leucine rich repeats (3). Human OSAD shares 80‑84% aa sequence identity with bovine, mouse, and rat OSAD. Human OSAD shares 32‑35% aa sequence identity with human class II SLRPs Fibromodulin, Keratocan, Lumican, and PRELP. Bovine, mouse, and rat OSAD are expressed as 60‑85 kDa molecules, although the amino acid sequence for each predicts a size of 46‑47 kDa. The primary difference is due to the presence of extensive N-linked glycosylation that can also vary between tissues of the same species (4, 5). Human OSAD is expressed as an even larger 110 kDa molecule in teeth (6). OSAD contains eight sulfated tyrosine residues (4, 7) and is distinguished from other class II SLRPs by the presence of an approximately 70 aa C-terminal acidic domain (3). OSAD is expressed by fetal and adult osteoblasts but is not detectable in cartilage or tendon (3, 4, 8). In dental tissue, OSAD is expressed by odontoblasts and ameloblasts (5, 9‑11) and is involved in the mineralization of bone and teeth (5, 11, 12). OSAD promotes the adhesion of osteoblasts and odontoblasts to the surrounding matrix, an interaction that is mediated by Integrin alpha V beta 3 (4, 6).

Entrez Gene IDs
4958 (Human)
Alternate Names
Keratan sulfate proteoglycan osteomodulin; KSPG osteomodulin; OMD; OSAD; osteoadherin proteoglycan; Osteoadherin; osteomodulin; SLRR2C; SLRR2Costeoadherin

Product Datasheets

Citation for Human Osteoadherin/OSAD Biotinylated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Comparison of secretome from osteoblasts derived from sclerotic versus non-sclerotic subchondral bone in OA: A pilot study
    Authors: C Sanchez, G Mazzucchel, C Lambert, F Comblain, E DePauw, Y Henrotin
    PLoS ONE, 2018;13(3):e0194591.
    Species: Human
    Sample Types: Cell Culture Supernates
    Applications: Western Blot

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