Words similar to tyr
Example sentences for: tyr
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The murinised ATF-BPTI (mhAB) plasmid was constructed by an identical procedure, using the (Tyr22, Arg27,29,30) uPA mutant cDNA as starting sequence [ 33 ] .
Insulin receptor was immunoprecipitated with specific antibodies, collected with protein A sepharose, and incubated with polyGlu 4 Tyr 1 peptides (Sigma, St. Louis, MO) in the presence of [γ- 32P]-ATP [ 14 ] . After completion of the kinase reaction, the mix was centrifuged and the phospho-peptide-containing supernatant precipitated with 20% TCA (w/v).
predicted that Phe158 and Ile 164 form hydrophobic interactions with bulky substituents on the substrate, suggesting that the loss of these residues would only affect binding of substrates with large aromatic substituents [ 37 ] . In the modeling studies on CcrA [ 42 ] , Asn233 was predicted to interact with the β-lactam carbonyl on substrate, and mutagenesis studies have supported this prediction [ 43 ] . Although Asn233 is sequence conserved in L1 [ 35 ] , it is located 14Å away from the modeled position of the β-lactam carbonyl and was predicted not to play a role in substrate binding to L1 [ 37 ] . On the other hand, the substrate-binding model predicted that Tyr228 was in position to offer a hydrogen bond to the β-lactam carbonyl and participate in an oxyanion hole that was proposed to form as the substrate was hydrolyzed [ 37 ] . By using the crystal structure and modeling studies on L1, Ullah et al.
This binding site coincides with that of AChBP, and is in agreement with photo-affinity labeling and mutagenesis study [ 6 11 ] . The ligand makes Van der Waals contact with Trp182, Tyr230 and Cys225-226 of alpha4, and Trp82, Leu146 and Phe144 of beta2 (Figure 3- Top).
It has been recently shown that rabbit PP1, expressed in E. coli , also possessed Tyr phosphatase activity.
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