Fe-type nitrile hydratase (NHase) from Rhodococcus sp. N771 has a novel non-heme iron active center with two post-translationally modified cysteine residues, cysteine-sulfenic and -sulfinic acids. The modified residues are involved in the sequence motif, Cys-Xxx-Leu-Cys-Ser-Cys (Xxx = Ser(Fetype)/Thr(Co-type)), which is conserved among all known NHases as well as in the homologous enzyme, thioc...

Post-translational modifications of proteins control many biological processes. This is also an important process in the pathogenesis of diabetes mellitus. Adiponectin is an insulin-sensitizing adipokine with antidiabetic, anti-atherogenic, anti-inflammatory and cardioprotective properties. The role of posttranslational modifications in regulating the biosynthesis of high molecular weight adipo...

Transient receptor potential (TRP) channels constitute an ancient family of cation channels that have been found in many eukaryotic organisms from yeast to human. TRP channels exert a multitude of physiological functions ranging from Ca2+ homeostasis in the kidney to pain reception and vision. These channels are activated by a wide range of stimuli and undergo covalent post-translational modifi...

Post-translational modifications of proteins control many biological processes. This is also important process in virus including hepatitis B. However, there is no in-depth study on the whole hepatitis B virus large envelope protein. In this work, potential protein post-translational modifications in hepatitis B virus large envelope protein were determined by a standard bioinformatics technique...

Exosomes mediate intercellular communication and participate in many cell processes such as cancer progression, immune activation or evasion, and the spread of infection. Exosomes are small vesicles secreted to the extracellular environment through the release of intraluminal vesicles contained in multivesicular bodies (MVBs) upon the fusion of these MVBs with the plasma membrane. The compositi...

Organellar Hsp-70 is required for post-translational translocation into the endoplasmic reticulum and mitochondria. The functional role played by Hsp-70 is unknown. However, two operating principles have been suggested. The power stroke model proposes that Hsp-70 undergoes a conformational change, which pulls the precursor protein through the translocation pore, whereas, in the Brownian ratchet...

Peroxiredoxins (Prxs) are a family of thiol peroxidases that participate in hydroperoxide detoxification and regulates H2O2 signaling. In mammals, the four typical 2-Cys Prxs (Prxs 1, 2, 3 and 4) are known to regulate H2O2-mediated intracellular signaling. The 2 catalytic cysteines of 2-Cys Prxs, the so-called peroxidatic and resolving cysteines, are regulatory switches that are prone to react ...

the present article reports a study carried out to investigate whether or not awareness of functional translation theories has any impact on the translation quality of translator trainees. 2oo iranian undergraduate students took part in this study. they were divided into four groups -two- experimental and two control groups. after homogenizing the participants by a toefl test, a translation pre...

The post-translational acquisition of ligand binding activity by the insulin receptor was examined in 3T3L1 adipocytes. In pulse-chase experiments with [35S] methionine, labeled receptor species were separated into “active” and “inactive” forms by affinity chromatography on insulin-agarose. and then were characterized and quantitated. It was found that the newly translated high molecular weight...

The majority of therapeutic proteins display one or more post-translational modifications (PTMs). These modifications normally influence the biochemical and therapeutic properties of such proteins. Choosing an expression system capable of generating an appropriate product PTM profile remains one of the most crucial decisions a drug developer must make. This review considers the PTMs most often ...