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 0.2 mg/mL in sterile PBS.

Reconstitution Buffer Available

Reconstitution Buffer 1 (PBS)

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: CLEC-2/CLEC1B

C-type lectin-like receptor 2 (CLEC-2) is a 32 kDa type II transmembrane glycoprotein and member of the C-type lectin-like family of receptors (1-4). CLEC-2 consists of a 33 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane region, and a 175 aa extracellular domain. The cytoplasmic domain contains multiple threonine and serine residues which are sites of potential phosphorylation, and a YXXL (Tyr-Xaa-Xaa-Leu) motif through which CLEC-2 does its signaling (2, 4-5). Ligand binding and cross-linking of CLEC-2 induces Src kinase-dependent tyrosine phosphorylation of the YXXL sequence, inducing activation of the tyrosine kinase Syk and initiation of a signaling pathway that culminates in activation of phospholipase C gamma 2 (2, 5). The extracellular domain contains three potential sites of N-linked glycosylation, and a single carbohydrate recognition domain (CRD) which shows conservation of six cysteine residues (1, 6). Unlike most other members of the
C‑type lectin-like family of receptors, CLEC-2's CRD lacks the amino acid residues that are crucial for Ca²⁺-dependent carbohydrate binding, making it a
non‑classical C-type lectin receptor (1, 6). A splicing variant at aa 22-55 produces two isoforms for CLEC-2. Isoform 1 is the longer protein, and in isoform 2, an alanine residue is substituted for aa 22-55. Human CLEC-2 shares 63% aa sequence identity with mouse CLEC-2. CLEC-2 is expressed preferentially in liver, and is also detected in myeloid cells (monocytes, dendritic cells, and granulocytes) (1), platelets, and megakaryocytes (4). CLEC-2 is the receptor for the
platelet‑aggregating snake venom protein rhodocytin (3-4) and the molecule podoplanin, a transmembrane sialoglycoprotein that, when bound to CLEC-2, is involved in platelet aggregation, tumor metastasis, and lymphatic vessel formation (2, 7). CLEC-2 has also been shown to enhance infectivity of HIV-1 by mediating HIV-1 attachment and transfer by CLEC-2 transfected cells and platelets (8).

References

Colonna, M. et al. (2000) Eur. J. Immunol. 30:697.
Christou, C.M. et al. (2008) Biochem. J. 411:133.
Watson, A.A. et al. (2007) J. Biol. Chem. 282:3165.
Suzuki-Inoue, K. et al. (2006) Blood 107:542.
Fuller, G.L. et al. (2007) J. Biol. Chem. 282:12397.
Weis, W.I. et al. (1998) Immunol. Rev. 163:19.
Suzuki-Inoue, K. et al. (2007) J. Biol. Chem. 282:25993.
Chaipan, C. et al. (2006) J. Virol. 80:8951.

Long Name

C-type Lectin-like Receptor 2

Entrez Gene IDs

51266 (Human); 56760 (Mouse)

Alternate Names

1810061I13Rik; CLEC1B; CLEC2; CLEC-2; CLEC2B; CLEC2PRO1384; C-type lectin domain family 1 member B; C-type lectin domain family 1, member B; C-type lectin-like receptor 2; C-type lectin-like receptor-2; QDED721