Human MBL Antibody

Catalog # Availability Size / Price Qty
MAB2307
MAB2307-SP
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Human MBL Antibody Summary

Species Reactivity
Human
Specificity
Detects human MBL in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant mouse MBL-2 is observed.
Source
Monoclonal Mouse IgG1 Clone # 285602
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human MBL
Glu21-Ile248
Accession # AAH96182
Formulation
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.

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Human MBL (Catalog # 2307-MB)

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

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 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. *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: MBL

Human mannose/mannan-binding lectin (MBL; also MBP-C) is a 25 kDa member of the collectin family of pattern-recognition molecules (1‑3). It is a secreted glycoprotein that is synthesized as a 248 amino acid (aa) precursor that contains a 20 aa signal sequence, a 21 aa cysteine-rich region (with three cysteines) a 58 aa collagen-like segment and a 111 aa C-type lectin domain that binds to neutral bacterial carbohydrates (3, 4). The molecule is O-glycosylated and contains multiple hydroxylated prolines and lysines (3, 5). Functionally, the molecule operates as a multimer/oligomer. The basic structural unit is a homotrimer. The homotrimer is created by the formation of interchain disulfide bonds among the cysteine-rich regions, plus a helical interaction of the collagen-like domains of each participating polypeptide (5). Mutations in the collagen region are known to interfere with proper trimer and subsequent oligomer formation (6). Once formed, the trimer, as a unit, oligomerizes with other trimers to form high molecular weight complexes. Although the exact nature of these complexes are unclear, it would appear that a three trimer complex (230 kDa) and a four trimer complex (305 kDa) constitute much of the circulating MBL (7). It is within the context of these oligomers that MBL performs its functions. After secretion by hepatocytes, oligomerized MBL will both associate with serine proteases (MASP-1, 2 & 3) and bind to bacterial carbohydrates. If the MBL complex is small, opsonization of bacreria occurs. If the complex is large, the MASPs are engaged and a complement attack complex is generated, destroying bound bacteria (3, 7, 8). Human MBL is 63%, 61% and 65% aa identical to mouse, porcine and bovine MBL, respectively.

References
  1. Gadjeva, M. et al. (2004) Mol. Immunol. 41:113.
  2. Kilpatrick, D.C. (2003) Biochem. Soc. Trans. 31:745.
  3. Presanis, J.S. et al. (2003) Biochem. Soc. Trans. 31:748.
  4. Sastry, K. et al. (1989) J. Exp. Med. 170:1175.
  5. Jensen, P.H. et al. (2005) J. Biol. Chem. 280:11043.
  6. Larsen, F. et al. (2004) J. Biol. Chem. 279:21302.
  7. Teillet, F. et al. (2005) J. Immunol. 174:2870.
  8. Terai, I. et al. (2003) Eur. J. Immunol. 33:2755.
 
Long Name
Mannose Binding Lectin
Entrez Gene IDs
4153 (Human)
Alternate Names
COLEC1; COLEC1collectin-1; Collectin-1; HSMBPC; Mannan-binding protein; mannose-binding lectin (protein C) 2, soluble (opsonic defect); mannose-binding lectin (protein C) 2, soluble; Mannose-binding lectin; mannose-binding protein C; MBL; MBL2; MBL2D; MBLmannan-binding lectin; MBP; MBP1; MBP1mannose-binding lectin 2, soluble (opsonic defect); MBP-C; MGC116832; MGC116833

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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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