scholarly journals Micro-RNAs, their target proteins, predispositions and the memory of filial imprinting

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Giorgi Margvelani ◽  
Maia Meparishvili ◽  
Tamar Kiguradze ◽  
Brian J. McCabe ◽  
Revaz Solomonia
2005 ◽  
Vol 173 (4S) ◽  
pp. 101-101
Author(s):  
Fedra Gottardo ◽  
Chang Gong Liu ◽  
Manuela Ferracin ◽  
George A. Calin ◽  
Cinzia Sevignani ◽  
...  
Keyword(s):  

2019 ◽  
Vol 35 (6) ◽  
pp. 91-101
Author(s):  
F.A. Klebanov ◽  
S.E. Cheperegin ◽  
D.G. Kozlov

Mutant variants of mini-intein PRP8 from Penicillium chrysogenum (Int4b) with improved control of C-terminal processing were characterized. The presented variants can serve as a basis for self-removed polypeptide tags capable of carrying an affine label and allowing to optimize the process of obtaining target proteins and peptides in E. coli cells. They allow to synthesize target molecules in the composition of soluble and insoluble hybrid proteins (fusions), provide their afnne purification, autocatalytic processing and obtaining mature target products. The presented variants have a number of features in comparison with the known prototypes. In particular the mutant mini-intein Int4bPRO, containing the L93P mutation, has temperature-dependent properties. At cultivation temperature below 30 °C it allows the production of target molecules as part of soluble fusions, but after increasing of cultivation temperature to 37 °C it directs the most of synthesized fusions into insoluble intracellular aggregates. The transition of Int4bPRO into insoluble form is accompanied by complete inactivation of C-terminal processing. Further application of standard protein denaturation-renaturation procedures enable efficiently reactivate Int4bPRO and to carry out processing of its fusions in vitro. Two other variants, Int4b56 and Int4b36, containing a point mutation T62N or combination of mutations D144N and L146T respectively, have a reduced rate of C-terminal processing. Their use in E. coli cells allows to optimize the biosynthesis of biologically active target proteins and peptides in the composition of soluble fusions, suitable for afnne purification and subsequent intein-dependent processing without the use of protein denaturation-renaturation procedures. intein, fusion, processing, processing rate, gelonin The work was supported within the framework of the State Assignment no. 595-00003-19 PR.


2002 ◽  
Vol 9 (3) ◽  
pp. 185-193 ◽  
Author(s):  
Vishal Agrawal ◽  
K.V. Kishan
Keyword(s):  

2020 ◽  
Vol 26 (10) ◽  
pp. 1119-1125
Author(s):  
Sara Bertrando ◽  
Pietro Vajro

: This review aims to focus the links existing between several aspects of the mother-child dyad in the intricate playground of obesity and Metabolic Syndrome (MetS), including its hepatic component, the Non- Alcoholic Fatty Liver Disease (NAFLD). In recent years human and animal model studies have shown that dietary interventions in mothers and offspring can be successful in reducing the risk of NAFLD development. Evidences also concern the new concept of a real intergenerational transmission of predisposition to metabolic disorders. Certain genes, such as SIRT1 and PNPLA3, and some epigenetic modifications, including micro RNAs function, seem to be responsible for fetal reprogramming in the setting of maternal obesity. These modifiers appear to be potential therapeutic targets to reduce the risk of future metabolic dysfunctions. : Controlling antepartum hyperglycemia, preventing gestational diabetes, and avoiding excessive weight gain during pregnancy can help reduce the relentless epidemic of childhood obesity and NAFLD. Also, the composition of the intestinal microbiota seems to be related to the development of metabolic disorders in the offspring. Several studies show that breastfed infants have a microbial signature different from formula-fed infants. Much interestingly, prolonged breastfeeding is beneficial not only for the newborn and his health in adult life, but also for the mothers’ health. Maternal benefits include reducing the risk of developing chronic diseases, such as diabetes mellitus, myocardial infarction and NAFLD as well. : In conclusion, all above mechanisms appear to intervene synergistically and may act as modifiable risk factors for infant and mother NAFLD.


Author(s):  
Angeles C. Tecalco–Cruz

Abstract:: Human interferon–stimulated gene 15 (ISG15) is a 15–kDa ubiquitin–like protein that can be detected as either free ISG15 or covalently associated with its target proteins through a process termed ISGylation. Interestingly, extracellular free ISG15 has been proposed as a cytokine–like protein, whereas ISGylation is a posttranslational modification. ISG15 is a small protein with implications in some biological processes and pathologies that include cancer. This review highlights the findings of both free ISG15 and protein ISGylation involved in several molecular pathways, emerging as central elements in some cancer types.


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