A small tripeptide AFA undergoes two state cooperative conformational transitions: implications for conformational biases in unfolded states.

abstract：:The polypeptide leptin exerts a multitude of regulatory functions. It has been implicated in the pathophysiology of inflammatory, metabolic and psychiatric disorders and has been found to be differentially expressed in men and women. Although a clear increase of leptin levels with age has been repeatedly observed in m...

journal_title：Protein and peptide letters

authors： Fulda S,Linseisen J,Wolfram G,Himmerich S,Gedrich K,Pollmächer T,Himmerich H

更新日期：2010-11-01 00:00:00

abstract：:Nicotinamide adenine dinucleotide (NAD) plays an important role in cellular metabolism and acts as hydrideaccepting and hydride-donating coenzymes in energy production. Identification of NAD protein interacting sites can significantly aid in understanding the NAD dependent metabolism and pathways, and it could further...

journal_title：Protein and peptide letters

authors： Wang X,Wang CC,Zhang YQ,Mi G,Zhang J,Li ML

更新日期：2012-05-01 00:00:00

abstract：:Arginine kinase is an essential enzyme which is closely related to energy metabolism in marine invertebrates. Arginine kinase provides a significant role in quick response to environmental change and stress. In this study, we simulated a tertiary structure of Sepia pharaonis arginine kinase (SPAK) based on the gene se...

journal_title：Protein and peptide letters

authors： Si YX,Lee J,Cheng JG,Yin SJ,Park YD,Qian GY,Jiang XM

更新日期：2016-01-01 00:00:00

abstract：:We have synthesised nine analogues of the antibacterial peptide anoplin with a peptoid residue at position 5 (H-GLLKXIKTLL-NH(2)). The most active compounds showed MIC-values of 12.5 and 25 microM against E.coli and S.aureus. These MIC-values are comparable with anoplin which showed 23 microM and 11 microM against E. ...

journal_title：Protein and peptide letters

authors： Meinike K,Hansen PR

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:Searching the biomarker from complex heterogeneous material for early detection of disease is a challenging task in the field of biomedical sciences. OBJECTIVE:The study has been arranged to explore the proteomics serum derived profiling of the differential expressed and low molecular weight protein in brea...

journal_title：Protein and peptide letters

authors： Zafar A,Jabbar M,Manzoor Y,Gulzar H,Hassan SG,Nazir MA,Ain-Ul-Haq,Mustafa G,Sahar R,Masood A,Iqbal A,Hussain M,Hasan M

更新日期：2020-01-01 00:00:00

abstract：:In this paper(1) we present a novel framework for protein secondary structure prediction. In this prediction framework, firstly we propose a novel parameterized semi-probability profile, which combines single sequence with evolutionary information effectively. Secondly, different semi-probability profiles are respecti...

journal_title：Protein and peptide letters

authors： Huang DS,Huang X

更新日期：2006-01-01 00:00:00

abstract：:Tumor vasculatures express high levels of α(V)β(3)/α(V)β(5) and α(5)β(1) integrins. Peptide containing the RGD (Arg-Gly-Asp) sequence, which is present in ligands of integrins, is effective in targeting therapeutic reagents to tumor vascular endothelium. In this study, we investigated whether the biological activity o...

journal_title：Protein and peptide letters

authors： Zhang HT,Li HC,Li ZW,Guo CH,Chen YJ

更新日期：2011-06-15 00:00:00

abstract：:Protein-splicing inteins are widespread in nature and have found many applications in protein research and engineering. The mechanism of protein splicing typically requires a nucleophilic amino acid residue at both position 1 (first residue of intein) and position +1 (first residue after intein), however it was not cl...

journal_title：Protein and peptide letters

authors： Qi X,Wang J,Meng Q,Liu XQ

更新日期：2011-12-01 00:00:00

abstract：:The P2 protein (equivalent of L7/L12 in prokaryotes), a member of the ribosomal stalk in eukaryotes, is highly conserved, particularly its C-terminal domain. In order to understand the sequence-structure-function relationships in eukaryotic C-terminal stretches, about which nothing is known at the moment, we have inve...

journal_title：Protein and peptide letters

authors： Mishra P,Rajagopal S,Sharma S,Hosur RV

更新日期：2014-01-01 00:00:00

abstract：:Adenoregulin is a 33 amino acid antibiotic peptide who belongs to dermaseptin family which is the first vertebrate family to show lethal effects against filamentous fungi, as well as a broad spectrum of pathogenic microorganisms. Synthetic adenoregulin gene was cloned in 2, 4 and 6 tandem repeats and subcloned in pET3...

journal_title：Protein and peptide letters

authors： Zhou Y,Cao W,Wang J,Ma Y,Wei D

更新日期：2005-05-01 00:00:00

abstract：:The role of interaction between Asn259 (catalytic domain) with Gln821 (C-terminal domain) in PeptidaseN was investigated. The k(cat) of PeptidaseN containing Asn259Asp or Gln821Glu is enhanced whereas it is suppressed in Asn259AspGln821Glu. Structural analysis shows this interaction to change the relative disposition ...

journal_title：Protein and peptide letters

authors： Kumar A,Reddy S,Srinivasan N,Nandi D

更新日期：2009-01-01 00:00:00

abstract：:Seminal plasma proteins contributed by secretions of accessory glands plays a copious role in fertilization. Their role is overlooked for decades and even now, as Artificial Reproduction Techniques (ART) excludes the plasma components in the procedures. Recent evidences suggest the importance of these proteins startin...

journal_title：Protein and peptide letters

authors： Kumar A,Sridharn TB,Rao KA

更新日期：2019-01-01 00:00:00

abstract：:A novel cellulase was isolated from the thermoacidophilic bacterium Alicyclobacillus acidocaldarius ATCC27009 grown in medium containing carboxymethylcellulose. The enzyme is a glycosylated monomer of 56.2 kDa, relatively thermostable, with optimal pH and temperature of 4.0 and 65 degrees C, respectively. Enzymatic as...

journal_title：Protein and peptide letters

authors： Morana A,Esposito A,Maurelli L,Ruggiero G,Ionata E,Rossi M,La Cara F

更新日期：2008-01-01 00:00:00

abstract：:The description of protein backbone was recently improved with a group of structural fragments called Structural Alphabets instead of the regular three states (Helix, Sheet and Coil) secondary structure description. Protein Blocks is one of the Structural Alphabets used to describe each and every region of protein bac...

journal_title：Protein and peptide letters

authors： Suresh V,Ganesan K,Parthasarathy S

更新日期：2013-03-01 00:00:00

abstract：:Quantum mechanical fragment molecular orbital calculations have been performed for receptor binding of the hemagglutinin protein of the recently pandemic influenza 2009 H1N1, A/swine/Iowa/1930, and A/Puerto Rico/8/1934 viruses to α2-6 linked sialyloligosaccharides, as analogs of human receptors. The strongest receptor...

journal_title：Protein and peptide letters

authors： Fukuzawa K,Omagari K,Nakajima K,Nobusawa E,Tanaka S

更新日期：2011-05-01 00:00:00

abstract：:Class I fusion glycoproteins of viruses are involved in the fusion between viral envelope and cell membrane. A region located in the N-terminal domain of these glycoproteins, called the fusion peptide, is essential for fusion. Fusion peptides are able to induce by themselves in vitro membrane fusion. In this paper, we...

journal_title：Protein and peptide letters

authors： Charloteaux B,Lorin A,Brasseur R,Lins L

更新日期：2009-01-01 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

authors： Mukherjee B,Karmakar SD,Hossain CM,Bhattacharya S

更新日期：2014-01-01 00:00:00

abstract：:Bacterial ADP-ribosyltransferases (BADPRTs) are extensively contributed to determine the strain-specific virulence state and pathogenesis in human hosts. Understanding molecular evolution and functional diversity of the BADPRTs is an important standpoint to describe the fundamental behind in the vaccine designing for ...

journal_title：Protein and peptide letters

authors： Chellapandi P,Sakthishree S,Bharathi M

更新日期：2013-09-01 00:00:00

abstract：:PepX is a X-prolyl dipeptidyl aminopeptidase of S15 family that cleaves dipeptides from the N-terminus of polypeptides having a proline or alanine residue at the second position. Involved in bacterial nutrition and in peptide maturation, this serine exopeptidase, counterpart of the mammalian DDP-4, has been proposed t...

journal_title：Protein and peptide letters

authors： André J,Bach M,Xie J,Rigolet P

更新日期：2013-01-01 00:00:00

abstract：BACKGROUND:Cathepsin D is a lysosomal enzyme that is found in all organisms acting in protein turnover, in humans it is present in some types of carcinomas, and it has a high activity in Parkinson's disease and a low activity in Alzheimer disease. In marine organisms, most of the research has been limited to corroborat...

journal_title：Protein and peptide letters

authors： Francisco CC,Luis CJ,Marina EJ,Javier CF,Alexis LA,Del Carmen SH,Alfredo RI

更新日期：2019-01-01 00:00:00

abstract：:Cyclophilin A (CyPA) is a cytosolic receptor of immunosuppressive drug cyclosporin A (CsA) which possesses peptidyl-prodyl cis/trans isomerase (PPIase) activity. The recombinant human CyPA (rhCyPA) gene has been expressed in E. coli M15. Purification was performed using salting-out, as well as Sephacryl S-100 and DEAE...

journal_title：Protein and peptide letters

authors： Zhang XC,Wang WD,Wang JS,Pan JC,Zou GL

更新日期：2011-12-01 00:00:00

abstract：:The interaction of nickel tetra sulfunated phthalocyanine( NiTSPc) with human serum albumin (HSA), in 20 mM phosphate buffer pH 7.4 was investigated using advanced techniques including fluorescence, synchronous fluorescence, Fourier transform infrared (FT-IR), circular dichroism (CD) spectroscopy and molecular docking...

journal_title：Protein and peptide letters

authors： Dezhampanah H,Firouzi R,Hasani L

更新日期：2016-01-01 00:00:00

abstract：:3-Isopropylmalate dehydrogenase (IPMDH) from Mycobacterium tuberculosis (Mtb) may be a target for specific drugs against this pathogenic bacterium. We have expressed and purified Mtb IPMDH and determined its physicalchemical and enzymological properties. Size-exclusion chromatography and dynamic light scattering measu...

journal_title：Protein and peptide letters

authors： Graczer E,Bacso A,Konya D,Kazi A,Soos T,Molnar L,Szimler T,Beinrohr L,Szilagyi A,Zavodszky P,Vas M

更新日期：2014-01-01 00:00:00

abstract：:A halophilic nucleoside diphosphate kinase from a moderate halophile, Halomonas sp. 593 (593NDK), was found to be resistant to heat treatment, as indicated by the high level of activity recovery after heating at high temperatures. This is due to reversibility of thermal unfolding, not the high melting temperature, of ...

journal_title：Protein and peptide letters

authors： Tokunaga H,Oda Y,Yonezawa Y,Arakawa T,Tokunaga M

更新日期：2006-01-01 00:00:00

abstract：:Red blood cell (RBC) encapsulated L-asparaginase is a novel therapeutic for the treatment of asparagine auxotrophic malignancies. The enzyme-loaded red blood cells function as bioreactors to deplete bloodstream substrate. This delivery system provides improved pharmacodynamics with protection from circulating proteoly...

journal_title：Protein and peptide letters

authors： Agrawal V,Woo JH,Borthakur G,Kantarjian H,Frankel AE

更新日期：2013-04-01 00:00:00

abstract：:Mastoparans are tetradecapeptides found to be the major component of wasp venoms. These peptides possess a variety of biological activities. Three related mastoparans, mastoparan from Polistes jadwagae (MP-PJ), mastoparanX (MP-X) and its carboxyl-free C-terminal form (MP-X-COO-), were crystallized. X-ray diffraction d...

journal_title：Protein and peptide letters

authors： Wang F,Liu X,Li H,Lang X,Peng H,Liu S,Jiang T

更新日期：2006-01-01 00:00:00

abstract：:We previously described a potent anthrax toxin inhibitor, based on a phage-library-selected peptide sequence, synthesized as a tetra-branched molecule on a lysine core and further modified for improvement of activity [Pini et al., Biochem. J., 2006, 395, 157]. This branched peptide had very low solubility because of s...

journal_title：Protein and peptide letters

authors： Pini A,Brunetti J,Falciani C,Fabbrini M,Bracci L

更新日期：2008-01-01 00:00:00

abstract：:Cinnamomin is a type II ribosome-inactivating protein (RIP) and its A-chain (CTA) is a RNA N-glycosidase. It is observed that modification of tyrosine residues by N-acetylimidazole (N-AI) causes almost complete loss of CTA activity. Adenine partially protects tyrosine residues from modification by N-AI. It is proposed...

journal_title：Protein and peptide letters

authors： Xu H,Liu WY

更新日期：2003-10-01 00:00:00

abstract：:There is a growing body of evidence that the formation and accumulation of advanced glycation end products (AGE) have been known to progress under diabetic conditions, thereby being involved in diabetic vascular complications. Further, we, along with others, have recently found AGE could disturb insulin actions in cul...

journal_title：Protein and peptide letters

authors： Unoki-Kubota H,Yamagishi S,Takeuchi M,Bujo H,Saito Y

更新日期：2010-09-01 00:00:00

abstract：:Loxosceles intermedia spider venom was subjected to proteomic analysis through a MudPIT shot-gun approach to identify the protein composition. Were identified 39 proteins which seem to responsible by the lesion of different types of tissues, to some physiopathological actions and by the prevention of structural damage...

journal_title：Protein and peptide letters

authors： dos Santos LD,Dias NB,Roberto J,Pinto AS,Palma MS

更新日期：2009-01-01 00:00:00