Substrate Specificity of the Two Mitochondrial Ornithine Carriers Can Be Swapped by Single Mutation in Substrate Binding Site

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mitochondrial carriers in the cytoplasmic state have a common substrate binding site.

Mitochondrial carriers link biochemical pathways in the cytosol and mitochondrial matrix by transporting substrates across the inner mitochondrial membrane. Substrate recognition is specific for each carrier, but sequence similarities suggest the carriers have similar structures and mechanisms of substrate translocation. By considering conservation of amino acids, distance and chemical constrai...

متن کامل

Effects of substrate binding site residue substitutions of xynA from Bacillus amyloliquefaciens on substrate specificity

BACKGROUND The aromatic residues of xylanase enzyme, W187, Y124, W144, Y128 and W63 of substrate binding pocket from Bacillus amyloliquefaciens were investigated for their role in substrate binding by homology modelling and sequence analysis. These residues are highly conserved and play an important role in substrate binding through steric hindrance. The substitution of these residues with alan...

متن کامل

γ-Secretase Substrate Selectivity Can Be Modulated Directly via Interaction with a Nucleotide-binding Site*,s

γ-Secretase is an unusual protease with an intramembrane catalytic site that cleaves many type I membrane proteins, including the amyloid β-protein (Aβ) precursor (APP) and the Notch receptor. Genetic and biochemical studies have identified four membrane proteins as components of γsecretase: heterodimeric presenilin composed of its Nand C-terminal fragments, nicastrin, Aph-1, and Pen-2. Here we...

متن کامل

The substrate binding site of pepsin.

In earlier reports from this laboratory, a series of new synthetic substrates for pepsin was described.'-' These compounds are of the general type Z-His-X-YOAI\e4 where X and Y are the residues of amino acids such as L-phenylalanine, p-nitro-L-phenylalanine, L-tyrosine, L-tryptophan, and L-leucine; the enzymic action is limited to the cleavage of the X-Y bond. One of the substrate analogues pre...

متن کامل

Site-2 protease substrate specificity and coupling in trans by a PDZ-substrate adapter protein.

Site-2 proteases (S2Ps) are intramembrane metalloproteases that cleave transmembrane substrates in all domains of life. Many S2Ps, including human S2P and Mycobacterium tuberculosis Rip1, have multiple substrates in vivo, which are often transcriptional regulators. However, S2Ps will also cleave transmembrane sequences of nonsubstrate proteins, suggesting additional specificity determinants. Ma...

متن کامل

ذخیره 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: Journal of Biological Chemistry

سال: 2012

ISSN: 0021-9258

DOI: 10.1074/jbc.m111.324855