Alternative Name(s):

30KDA extracellular protein Acyl-CoA:diacylglycerol acyltransferase Antigen 85 complex B

Species: (Organism)

Mycobacterium kansasii

Gene Names:

fbpB

Tag info:

N-terminal 10xHis-SUMO-tagged and C-terminal Myc-tagged

Target Protein AA Sequence:

FSRPGLPVEYLQVPSAAMGRSIKVQFQSGGDNSPAVYLLDGLRAQDDYNGWDINTPAFEWYYQSGLSVIMPVGGQSSFYSDWYSPACGKAGCTTYKWETFLTSELPQWLSANRSVKPTGSAAVGISMAGSSALILSVYHPQQFIYAGSLSALMDPSQGMGPSLIGLAMGDAGGYKASDMWGPSSDPAWQRNDPSLHIPELVANNTRLWIYCGNGTPSELGGANVPAEFLENFVRSSNLKFQDAYNAAGGHNAVFNLDANGTHSWEYWGAQLNAMKGDLQASLGAR

Expression Region:

41-325aa

Subcellular Location:

Secreted

Tissue Specificity:

Protein Length:

Full Length of Mature Protein

Pathway:

Mol. Weight:

50.6 kDa

Purity:

Greater than 90% as determined by SDS-PAGE.

Form:

Liquid or Lyophilized powder

Buffer:

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Research Areas:

Microbiology

Function:

The antigen 85 proteins (FbpA, FbpB, FbpC) are responsible for the high affinity of mycobacteria for fibronectin, a large adhesive glycoprotein, which facilitates the attachment of M.tuberculosis to murine alveolar macrophages (AMs). They also help to maintain the integrity of the cell wall by catalyzing the transfer of mycolic acids to cell wall arabinogalactan and through the synthesis of alpha,alpha-trehalose dimycolate (TDM, cord factor). They catalyze the transfer of a mycoloyl residue from one molecule of alpha,alpha-trehalose monomycolate (TMM) to another TMM, leading to the formation of TDM (By similarity).

Involvement in disease:

Relevance:

The antigen 85 proteins (FbpA, FbpB, FbpC) are responsible for the high affinity of mycobacteria for fibronectin, a large adhesive glycoprotein, which facilitates the attachment of M.tuberculosis to murine alveolar macrophages (AMs). They also help to maintain the integrity of the cell wall by catalyzing the transfer of mycolic acids to cell wall arabinogalactan and through the synthesis of alpha,alpha-trehalose dimycolate (TDM, cord factor). They catalyze the transfer of a mycoloyl residue from one molecule of alpha,alpha-trehalose monomycolate (TMM) to another TMM, leading to the formation of TDM .

Reconstitution:

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Protein Families:

Mycobacterial A85 antigen family

Reference:

"The novel fibronectin-binding motif and key residues of mycobacteria." Naito M., Ohara N., Matsumoto S., Yamada T. J. Biol. Chem. 273:2905-2909(1998)