Site-directed mutagenesis of a fatty acid elongase ELO-like condensing enzyme
نویسندگان
چکیده
منابع مشابه
Heterologous expression of human prostatic acid phosphatase and site-directed mutagenesis of the enzyme active site.
Earlier covalent modification experiments indicated that histidine, arginine, and carboxylic acid residues were involved in the catalytic mechanism of the acid phosphatase enzyme from human prostate. The present study utilizes site-directed mutagenesis to evaluate the catalytic importance of 7 residues of human prostatic phosphatase, namely His12, His257, Asp258, Arg11, Arg15, Arg54, and Arg79,...
متن کاملConstruction of a recombinant vector for site-directed mutagenesis in Salmonella typhimurium
BACKGROUND: Among all common techniques in sitedirectedmutagenesis, λ Red recombinase system has beenwidely used to knock out chromosomal genes in bacteria. In thismethod, there is always the risk of DNA Linear digestion byhost's restriction enzymes that leads to the low frequency ofrecombination. OBJECTIVES:To overcome this, we constructeda recombinant vector to disrupt phoP gene in Salmonella...
متن کاملSite-Directed Mutagenesis Study
Structural elements of the rat 1.t-opioid receptor important in ligand receptor binding and selectivity were examined using a site-directed mutagenesis approach. Five single amino acid mutations were made, three that altered conserved residues in the ~ 8, and K receptors (Asn 15°t Ala, His297 to Ala, and Tyr326 to Phe) and wo de igned to test for ~i/8 selectivity (lie198 to Val and Va1202 to li...
متن کاملProbing the mechanism of the bifunctional enzyme ketol-acid reductoisomerase by site-directed mutagenesis of the active site.
Ketol-acid reductoisomerase (EC 1.1.1.86) is involved in the biosynthesis of the branched-chain amino acids. It is a bifunctional enzyme that catalyzes two quite different reactions at a common active site; an isomerization consisting of an alkyl migration, followed by an NADPH-dependent reduction of a 2-ketoacid. The 2-ketoacid formed by the alkyl migration is not released. Using the pure reco...
متن کاملMolecular modelling and site-directed mutagenesis of the active site of endothelin-converting enzyme.
Mammalian endothelin-converting enzyme is a membrane-bound metalloprotease; its C-terminal domain contains sequence motifs characteristic of zinc metalloproteases. We examined residues expected from molecular modelling to be important for substrate binding using selectively mutated recombinant rat ECE-1alpha expressed in CHO cells. A conserved N-A-Ar-Ar (Ar = aromatic) motif is likely to be imp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEBS Letters
سال: 2013
ISSN: 0014-5793
DOI: 10.1016/j.febslet.2013.10.011