Human CL-P1/COLEC12 Antibody

Catalog #: MAB26901 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB26901
MAB26901-SP

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Summary Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human CL-P1/COLEC12 Antibody Summary

Species Reactivity

Human

Specificity

Detects human CL‑P1/COLEC12 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant mouse CL-P1 is observed.

Source

Monoclonal Rat IgG₁ Clone # 388305

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant human CL‑P1/COLEC12 isoform 1
Leu57-Leu742
Accession # Q5KU26

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.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

Recombinant Human CL-P1/COLEC12 (Catalog # 2690-CL)

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.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile 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: CL-P1/COLEC12

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). With two exceptions, all collectins are secreted. 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 Lewis^x 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 shares 93% aa sequence identity with mouse CL-P1 over the entire extracellular region, and 87% aa identity within each species CRD (5, 9). Human CL-P1 is expressed in vascular endothelial cells (5). CL-P1 may play a role in bacterial recognition or as a scavenger receptor for desialylated glycoproteins.

References

van de Wetering, JK. et al. (2004) Eur. J. Biochem. 271:1229.
Holmskov, U. et al. (2003) Annu. Rev. Immunol. 21:547.
Hoppe, H-J. and K. Reid (1994) Protein Sci. 3:1143.
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.

Long Name

Collectin Placenta 1

Entrez Gene IDs

81035 (Human); 140792 (Mouse); 361289 (Rat)

Alternate Names

CL-P1; CLP1hCL-P1; COLEC12; collectin placenta 1; Collectin placenta protein 1; collectin sub-family member 12; collectin-12; NSR2; Nurse cell scavenger receptor 2; SCARA4; SCARA4NSR2; Scavenger receptor class A member 4; scavenger receptor class A, member 4; SRCL Type I; SRCLScavenger receptor with C-type lectin