Collagen XIII alpha 1 was detected in immersion fixed paraffin-embedded sections of human placenta using Mouse Anti-Human Collagen XIII alpha 1 Monoclonal Antibody (Catalog # MAB6346) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to basement membrane. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Sterile PBS to a final concentration of 0.5 mg/mL.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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: Collagen XIII alpha 1
COL13A1 (collagen 13-alpha 1) is a 95 kDa member of the transmembrane group of the collagen family of proteins. It is a type II transmembrane glycoprotein that is expressed by multiple cell types, including fibroblasts, endothelial cells, and cardiac muscle. COL13A1 forms disulfide-linked homotrimers and participates in cell adhesion by binding to the Integrin alpha 1 subunit, Nidogen-2, and Fibronectin. Human COL13A1 is 717 amino acids (aa) in length. It has an N‑terminal 44 aa cytoplasmic region plus a 656 aa extracellular domain (ECD) (aa 62-717). The ECD contains four non-collagenous (NC) regions (aa 1‑121, aa 217-269, aa 442-463, and aa 700-717) interspersed among three collagenous (COL) domains (aa 122-216, aa 270-441, and aa 464-699). Multiple splice forms exist and typically involve deletions of 12-30 aa between aa 220-705. Proteolytic cleavage after Arg108 generates an 85-90 kDa soluble form. Over aa 109-668 (based on a human isoform [NP_542992} that shows a deletion of aa 239-260, aa 551-565, and aa 616-627), human COL13A1 shares 91% aa sequence identity with mouse COL13A1.
Entrez Gene IDs:
1305 (Human); 12817 (Mouse); 499431 (Rat)
COL13A1; collagen alpha-1(XIII) chain; Collagen XIII alpha 1; collagen, type XIII, alpha 1; FLJ42485
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