Abstract:
:The present study dealt with the isolation, identification and characterization of pigments from red snow samples of the Quito coastal front glacier (S 62º 27,217', W 059º 45,960') in Greenwich, Archipelago South Shetland, Antarctica, during summer 2013. As a strain of Shewanella was found to be the most common and abundant species with maximum red color production, the pigment -contained in the protein fraction- was isolated and characterized by high performance liquid chromatography (HPLC), two-dimensional fluorescence Difference Gel Electrophoresis (2-D DIGE) and matrix- assisted laser desorption/ionization-time of flight mass spectrometry (MALDI/TOF/TOF). The identified pigment is a cytochrome c3 with apparent molecular weight of 10 kDa and apparent pI around 4.5. The maximum pigment concentration was produced at warm temperatures, 28ºC, and with increasing exposure time to UV radiation. Here we demonstrate that the synthesis of cytochrome c3 by the Antarctic bacterium is due to thermal adaptation and/or adaptation to radiation. Further, pigments such as cytochrome c3 enable this bacterial species to use an anaerobic and ferric metabolism. In addition, this study draws attention to the relevance of adaptation investigations; to the study of in vivo monitoring of environmental warming and UV radiation due to global warming; and to the study of the potential habitability of other worlds in the Solar System and beyond.
journal_name
Protein Pept Lettjournal_title
Protein and peptide lettersauthors
Martín-Cerezo ML,García-López E,Cid Cdoi
10.2174/0929866522666150915122247subject
Has Abstractpub_date
2015-01-01 00:00:00pages
1076-82issue
12eissn
0929-8665issn
1875-5305pii
PPL-EPUB-70413journal_volume
22pub_type
杂志文章abstract:INTRODUCTION:The Renin-Angiotensin System (RAS) has emerged as being related to vascular disease. Recently the RAS has been associated with obesity, diabetes, and even cancer. OBJECTIVE:This review and Bioinformatics analyses focuses on the investigation of Angiotensinconverting enzymes (ACE and ACE2) as therapeutical...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866524666170815161621
更新日期:2017-11-17 00:00:00
abstract::To identify proteins involved in the molecular mechanisms of pressure overload-induced heart failure, we quantitatively analyzed the left ventricular proteomic profile in a transverse aortic constriction (TAC) mouse model, a well-established model of cardiac hypertrophy and dysfunction. Multidimensional LC-MS/MS in co...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866523666151125231747
更新日期:2016-01-01 00:00:00
abstract::Most proteinaceous pores are characterized as ionic channels. However, some are also involved in protein translocation through phospholipidic membranes. This concept has evolved slowly in cell biology and in biophysics, requiring the development of adapted electrical and biochemical methods. Protein translocation in m...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/09298665113209990076
更新日期:2014-03-01 00:00:00
abstract::In mammals the M1 aminopeptidase family consists of nine different proteins, five of which are integral membrane proteins. The aminopeptidases are defined by two motifs in the catalytic domain; a zinc binding motif HEXXH-(X18)-E and an exopeptidase motif GXMEN. Aminopeptidases of this family are able to cleave a broad...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866043406643
更新日期:2004-10-01 00:00:00
abstract::The search for potential inhibitors that target so far unexplored bacterial enzyme mono-N-succinyl-L,L-diaminopimelic acid desuccinylase (DapE) has stimulated a development of methodology for quick and efficient preparation of mono-N-acylated 2,6-diaminopimelic acid (DAP) derivatives bearing the different carboxyl gro...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986610790780387
更新日期:2010-03-01 00:00:00
abstract::An alternative method for expressing the recombinant proteins in Escherichia coli is proposed. Unlike the ordinary induction protocol where the cells in the early- to mid-log phase are induced for the protein production, this alternative protocol utilizes the cells in the stationary phase. By using a glutathione S-tra...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866033478861
更新日期:2003-08-01 00:00:00
abstract::Thioredoxin (TRX) catalyzes redox reactions via the reversible oxidation of the conserved active center CGPC and it is involved in multiple biological processes, some of them linked to redox activity while others not. TRX is a globular, thermodynamically stable and monomeric alpha/beta protein with a structure charact...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866522666150707114309
更新日期:2015-01-01 00:00:00
abstract::Monoclonal antibody (mAb) MN423 recognizes Alzheimer's disease specific conformation of tau protein assembled into paired helical filaments (PHF). Since the three-dimensional structure of PHF is currently unavailable, the structure of MN423 binding site could provide important information about PHF conformation with t...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986606778256180
更新日期:2006-01-01 00:00:00
abstract::Eukaryotic translation initiation factor 5A (eIF-5A) is universally found in all eukaryotic cells. It is the only protein in nature known to contain the unusual amino acid hypusine, a post-translationally modified lysine. Recombinant human eIF-5A was crystallized by the hanging-drop vapor diffusion method. Crystals we...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866054696091
更新日期:2005-10-01 00:00:00
abstract::In the last few decades, novel drug delivery strategies have been a big priority to the formulation scientists. Peptides and proteins have drawn a special attention for their wide scope in the area. Serum albumin, transferrin, recom- binant proteins, virus capsids etc. are used as carrier for drug and biomolecules. Co...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866521666140804160907
更新日期:2014-01-01 00:00:00
abstract::Currently, prion phenomena have been detected in various organisms, in addition to mammals affected by transmissible spongiform encephalopathies. In the budding yeast Saccharomyces cerevisiae, various proteins have prion properties and adopt atypical phenotypes as genetic elements, such as the Sup35 and Ure2 proteins,...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/092986609787601796
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Microalgae have been suggested as promising feedstocks of significant biotechnological interest due to their enormous potential for the sustainable production of industrially valuable compounds such as lipids/fatty acids, proteins, metabolites, pigments, and biofuels. However, exploitation of algal biomass f...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866525666180122100722
更新日期:2018-01-01 00:00:00
abstract::Behcet's disease (BD) is a recurrent pathema with a typical symptom of inflammation involved in many organs. Previous report indicated that the serum of Korean patients with BD stimulates membrane expression of hnRNP A2/B1 in endothelial cells. In this study, the target 35 kDa recombinant human hnRNP A2/B1 were over-e...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866522666150428121442
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Cryptochrome is a flavin-binding blue-light photoreceptor that functions in growth and development in plants, the circadian clock in animals and navigation in birds. However, a lack of purified cryptochrome has hindered studies of the structure and function of this protein. In this study, we obtained a subst...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866525666181004112308
更新日期:2018-01-01 00:00:00
abstract::Influenza viruses cause a significant level of morbidity and mortality in the population every year. Their resistance to current anti-influenza drugs increases the difficulty of flu treatment. Thus, development of new anti-influenza drugs is necessary in regards of prevent the tragedy of influenza pandemic. The Polyme...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986611796378675
更新日期:2011-10-01 00:00:00
abstract::Solid state nuclear magnetic resonance (NMR) has developed into one of the most informative and direct experimental approaches to the characterization of the molecular structures of amyloid fibrils, including those associated with Alzheimer's disease. In this article, essential aspects of solid state NMR methods are d...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/092986606775338470
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Microbe-Binding Peptides (MBPs) are currently being investigated to address the problem of antimicrobial resistance. Strategies enhancing their antimicrobial activity have been developed, including peptide dimerization. Here, we present an alternative approach based on peptide polymerization, yielding hapten...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866527666200427212940
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Recently, the small molecule that inhibits the human copper-trafficking proteins Atox1 and CCS was reported, which suggested that small molecule has an effect on the copper regulation system in the cell. The copper chaperones CopC is regarded as a redox switch and possess barrel structure, thus the interacti...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866526666191204124245
更新日期:2020-01-01 00:00:00
abstract::Although macromolecular crystallography is a widely supported technique at synchrotron radiation facilities throughout the world, there are, in comparison, only very few beamlines dedicated to small-molecule crystallography. This limited provision is despite the increasing demand for beamtime from the chemical crystal...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866523666160115131217
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Development of proteins and peptides into drugs has been considered as a promising strategy to target certain diseases. However, only few proteins and peptides have been approved as new drugs into the market each year. One major problem is that proteins and peptides often exhibit short plasma half-life times...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866525666180530122835
更新日期:2018-01-01 00:00:00
abstract::The 5S subunit of transcarboxylase was expressed and purified. Recent methods of NMR spectroscopy as transferred NOESY, INPHARMA and Saturation Transfer Difference (STD) NMR were used to investigate ligand binding of free biotin to the 5S protein. The binding epitope for biotin is very similar to that obtained at the ...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986608784966886
更新日期:2008-01-01 00:00:00
abstract::Proteases have been used not only for proteolysis but also in organic solvent-assisted religation processes. Here, we demonstrated the effect of salts on peptide bond resynthesis in Glutathione-S-transferase (GST) and have found it to be in the purview of the Hofmeister phenomena. Our results show that the efficiency ...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986610789909395
更新日期:2010-01-01 00:00:00
abstract::Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is known to interact with different biomolecules and was implicated in many novel cellular activities including programmed cell death, nuclear RNA transport unrelated to the commonly known carbohydrate metabolism. We reported here the purification of GAPDH from Chironom...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866511320090002
更新日期:2013-09-01 00:00:00
abstract::A pivotal feature that underlies the development of neurodegeneration is the accumulation of protein aggregates. In response, eukaryotic cells have evolved sophisticated quality control mechanisms to identify, repair and/or eliminate the misfolded abnormal proteins. Chaperones identify any otherwise abnormal conformat...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866526666191026111951
更新日期:2020-01-01 00:00:00
abstract::Coordination of cell growth and cell division is very important for living organisms in order for these to develop harmonically. The present research is concerned with the purification and characterization of a new peptide hormone, namely ZmIGF (Zea mays insulin-like growth factor), which regulates growth and cell div...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986611794328636
更新日期:2011-01-01 00:00:00
abstract::Self-Interacting Proteins (SIPs), whose two or more copies can interact with each other, have significant roles in cellular functions and evolution of Protein Interaction Networks (PINs). Knowing whether a protein can act on itself is important to understand its functions. Previous studies on SIPs have focused on thei...
journal_title:Protein and peptide letters
pub_type: 杂志文章,评审
doi:10.2174/0929866527666191227141713
更新日期:2020-01-01 00:00:00
abstract::The immunogenicity of "novel" MART-1 and Tyrosinase class-II peptides was assessed in transgenic mice. Tyrosinase(141-161) peptide was found to be immunogenic and endogenously processed in the HLA-DRbeta1*0101 and HLA-DRbeta1*0401 transgenic mice with peptide specific production of IFNgamma or IL-5 respectively. The M...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986607780782768
更新日期:2007-01-01 00:00:00
abstract::PD-L1 is a highly glycosylated type 1 ribosome inactivating protein, from Phytolacca dioica leaves, with the peculiarity to act also as a DNase. PD-L1 has been successfully crystallized using vapour diffusion and seeding techniques. Crystals belong to the monoclinic C2 space group, with unit cell dimensions a=161.01, ...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986607780363899
更新日期:2007-01-01 00:00:00
abstract::Interaction between S100P and its target protein is an essential step in several cellular functions. The amphipathic mellitin peptide binds tightly to S100P protein in the presence of calcium cation. Since little is known about the recognition sequence, mellitin interaction form a model for S100P. Interaction between ...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/092986606775338380
更新日期:2006-01-01 00:00:00
abstract::Spermadhesins are a family of secretory proteins expressed in the male genital tract of pig, horse and bull. Their function and structure have been widely studied, especially those isolated from boar. However, there are no data concerning spermadhesins isolated from buck. Buck seminal plasma was collected and subjecte...
journal_title:Protein and peptide letters
pub_type: 杂志文章
doi:10.2174/0929866023408670
更新日期:2002-08-01 00:00:00