HUVEC human umbilical vein endothelial cells were stained with Goat Anti-Human CL‑P1/COLEC12 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2690, filled histogram) or isotype control antibody (Catalog # ...read more
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 as a 0.2 µm filtered solution in PBS.
Immunogen affinity purified
Reconstitute at 0.2 mg/mL in sterile PBS.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for CL-P1/COLEC12 Antibody
collectin placenta 1
Collectin placenta protein 1
collectin sub-family member 12
Nurse cell scavenger receptor 2
Scavenger receptor class A member 4
scavenger receptor class A, member 4
SRCL Type I
SRCLScavenger receptor with C-type lectin
Collectins are a family of Ca++-dependent, C-type lectins that contain a collagenous domain and function as recognition molecules for molecular patterns found on pathogens (1‑4). Human collectin placenta 1 (CL-P1; also known as collectin sub-family member 12 and SRCL type I [scavenger receptor with C-type lectin type I]) is a 110 kDa member of the collectin family of glycoproteins (5, 6). CL-P1 is the only collectin known to be membrane bound, while CL-L1 (collectin liver-1) is the only known cytoplasmic collectin (1). Human CL-P1 is synthesized as a 742 amino acid (aa) type II transmembrane glycoprotein that contains an N-terminal 39 aa cytoplasmic domain, a 17 aa transmembrane segment, and a 686 aa C-terminal extracellular region (6). The short cytoplasmic domain contains an internalization motif (Y-K-R-F) while the extracellular region is complex, demonstrating a coiled-coil segment, a Ser-Thr rich region, a collagen-like structure and a C-type lectin/ carbohydrate recognition domain (CRD). Notably, this CRD recognizes galactose (and fucose) within the context of asialo‑orosomucoids associated with the Lewisx epitope (7, 8). CL-P1 has a 300 kDa trimeric form due to its collagen-like and coiled-coil helical domains (1, 5). There is a 97 kDa, alternate splice form of CL-P1 (SRCL type II) that shows a 120 aa truncation at the C-terminus. This effectively removes the entire CRD found on full‑length CL-P1 (6). Human CL-P1 is 93% aa identical to mouse CL-P1 over the entire extracellular region, and 87% aa identical over the CRD region (5, 9). Human CL-P1 is known to be expressed in vascular endothelial cells (5).
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Holmskov, U. et al. (2003) Annu. Rev. Immunol. 21:547.
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Hickling, T.P. et al. (2004) J. Leukoc. Biol. 75:27.
Ohtani, K. et al. (2001) J. Biol. Chem. 276:44222.
Nakamura,K. et al. (2001) Biochem. Biophys. Res. Commun. 280:1028.
Coombs, P.J. et al. (2005) J. Biol. Chem. 280:22993.
Yoshida, T. et al. (2003) J. Biochem. 133:271.
Nakamura, K. et al. (2001) Biochim. Biophys. Acta 1522:53.
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.
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