FbpB Protein, Mycobacterium kansasii, Recombinant (His & Myc & SUMO) is expressed in E. coli expression system with N-10xHis-SUMO and C-Myc tag. The predicted molecular weight is 50.6 kDa and the accession number is P21160.

Mycobacterium kansasii

E. coli

fbpB,30 kDa extracellular protein,Extracellular alpha-antigen,Fibronectin-binding protein B,Acyl-CoA:diacylglycerol acyltransferase,Diacylglycerol acyltransferase/mycolyltransferase Ag85B,Antigen 85 complex B

FSRPGLPVEYLQVPSAAMGRSIKVQFQSGGDNSPAVYLLDGLRAQDDYNGWDINTPAFEWYYQSGLSVIMPVGGQSSFYSDWYSPACGKAGCTTYKWETFLTSELPQWLSANRSVKPTGSAAVGISMAGSSALILSVYHPQQFIYAGSLSALMDPSQGMGPSLIGLAMGDAGGYKASDMWGPSSDPAWQRNDPSLHIPELVANNTRLWIYCGNGTPSELGGANVPAEFLENFVRSSNLKFQDAYNAAGGHNAVFNLDANGTHSWEYWGAQLNAMKGDLQASLGAR

41-325 aa

> 90% as determined by SDS-PAGE.

A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.

Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

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.