Technical datasheet
Description
The monoclonal antibody 900 recognizes elongation factor Tu (EF-Tu), a 43 kDa multifunctional protein present in Escherichia coli. EF-Tu is one of the most abundant proteins present in prokaryotes, representing about 5 % of the total cellular protein of E. coli. During protein biosynthesis, the elongation process, EF-Tu catalyzes the binding of each aminoacyl-tRNA to the ribosome. It also interacts with several macromolecules and guanine nucleotides, including EF-Ts, GDP, GTP, and some ribosomal proteins. Monoclonal antibody 900 recognizes EF-Tu in organisms belonging to bacterial and archaeal domains, yet no organisms from the eukaryotic domain. The panbacterial distribution of EF-Tu, which is present in large amounts in every prokaryotic cell, renders this protein a good candidate for diagnostic purposes. The highly conserved epitope recognized by monoclonal antibody 900 is located at the very end of the N-terminus of the EF-Tu molecule (SKEKFE).
Cross Reactivity
| Cross reactant |
Reactivity |
| Bacteroides fragilis |
Yes |
| Streptococcus oralis |
Yes |
| Bacillus subtilis |
Yes |
| Mycobacterium tuberculosis |
Weak |
| Pseudomonas aeruginosa |
Yes |
| Burkholderia cepacia |
Yes |
| Deinococcus sp. |
Yes |
Immunogen
E. coli K-12 C600 Rif ( pKT146) bacteria
Formulation
1 ml (100 µg/ml) 0.2 µm filtered antibody solution in PBS, containing 0.1% bovine serum albumin and 0.02% sodium azide.
Species
Mouse IgG2a
Application
| | F | FC | FS | IA | IF | IP | P | W | | Yes | | | | ● | ● | | | ●a | | No | | | | | | | | | | N.D. | ● | ● | ● | | | ● | ● | | |
a = Bacterial EF-Tu reveals a molecular mass of 43-47 kDa, whereas archaeal EF-Tu reveals as either 80 or 60 kDa (ref 1) N.D.=Not Determined; F=Frozen sections; FC=Flow cytometry; FS=Functional studies; IA=Immuno assays; IF=Immuno fluorescence; IP=Immuno precipitation; P=Paraffin sections; W=Western blot |
Use
For Western blotting, dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.
Aliases
EF-TU, Elongation factor TUF, Elongation factor Tu
Storage and stability
Product should be stored at 4°C. Under recommended storage conditions, product is stable for one year.
References
- Weber, S et al; An epitope of elongation factor Tu is widely distributed within the bacterial and archaeal domains. J Bacteriol 1995, 177: 11
- Baensch, M et al; Conservation of the amino-terminal epitope of elongation factor Tu in eubacteria and archaea. Microbiology 1998, 144: 2241
- Kunert, A et al; Immune evasion of the human pathogen Pseudomonas aeruginosa: elongation factor Tuf is a factor H and plasminogen binding protein. J Immunol 2007, 179: 2979
Precautions
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result from the use or derivation of this product.
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