Recombinant Escherichia coli Tetracycline repressor protein class B from transposon Tn10 (tetR)

SKU: P04483

Size: 100ug. Other sizes are also available.

Activity: Not tested

Research Areas: Others

Uniprot ID: P04483

Gene Names: tetR

Alternative Name(s):

Abbreviation: Recombinant E.coli tetR protein

Organism: Escherichia coli

Source: E.coli

Expression Region: 1-207aa

Protein Length: Full Length

Tag Info: Tag-Free

Target Protein Sequence: MSRLDKSKVINSALELLNEVGIEGLTTRKLAQKLGVEQPTLYWHVKNKRALLDALAIEMLDRHHTHFCPLEGESWQDFLRNNAKSFRCALLSHRDGAKVHLGTRPTEKQYETLENQLAFLCQQGFSLENALYALSAVGHFTLGCVLEDQEHQVAKEERETPTTDSMPPLLRQAIELFDHQGAEPAFLFGLELIICGLEKQLKCESGS

MW: 23.4 kDa

Purity: Greater than 85% as determined by SDS-PAGE.

Endotoxin: Not test

Biological_Activity:

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.

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.

Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.

Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.

Relevance: TetR is the repressor of the tetracycline resistance elent; its N-terminal region forms a helix-turn-helix structure and binds DNA. Binding of tetracycline to TetR reduces the repressor affinity for the tetracycline resistance gene (tetA) promoter operator sites.

Reference: Nucleotide sequence of the repressor gene of the TN10 tetracycline resistance determinant.Postle K., Nguyen T.T., Bertrand K.P.Nucleic Acids Res. 12: 4849-4863(1984)

Function: