abstract：:Nudix hydrolases catalyze the hydrolysis of nucleoside diphosphates linked to other moieties X, and contain the sequence motif or Nudix box, GX5EX7REUXEEXGU. The mechanisms of Nudix hydrolases are highly diverse in the position on the substrate. In this paper, we examined the sequences and structures of the MutT/Nudix...

journal_title：Protein and peptide letters

authors： Lin J,Tian B,Hua Y

更新日期：2008-01-01 00:00:00

abstract：:We present two efficient network propagation algorithms that operate on a binary tree, i.e., a sparse-edged substitute of an entire similarity network. TreeProp-N is based on passing increments between nodes while TreeProp-E employs propagation to the edges of the tree. Both algorithms improve protein classification e...

journal_title：Protein and peptide letters

authors： Kocsor A,Busa-Fekete R,Pongor S

更新日期：2008-01-01 00:00:00

abstract：:From the extensive analysis, we identified three highly conserved sequence segments in HCV NS5A proteins and one binding motif in human proteins. The binding motif of human proteins often forms a full helix or an extended strand-loop structure, and is in good agreement with the experimental findings of previous studie...

journal_title：Protein and peptide letters

authors： Zhang GZ,Han K

更新日期：2008-01-01 00:00:00

abstract：:Glycation, a non-enzymatic reaction between glucose and protein is the primary cause of diabetic complications. Albumin, the most abundant plasma protein undergoes glycation both in vivo and in vitro. The influence of albumin on glycation of less abundant proteins has not been addressed. For the first time, we show th...

journal_title：Protein and peptide letters

authors： Bhonsle HS,Singh SK,Srivastava G,Boppana R,Kulkarni MJ

更新日期：2008-01-01 00:00:00

abstract：:After several studies on prediction of mutation, we examine the effect of three sampling strategies, the sampling based on years, the sampling based on number of mutations, and the sampling based on the unpredictable portion of amino-acid pairs, on the prediction performance in H5N1 hemagglutinins. The results show th...

journal_title：Protein and peptide letters

authors： Wu G,Yan S

更新日期：2008-01-01 00:00:00

abstract：:This work describes the investigations of electrochemical interactions of naphthalene acetic acid (NAA) with stabilized lipid films supported on a methacrylate polymer on a glass fiber filter with incorporated auxin-binding protein 1 receptor for the development of a biosensor for the rapid detection of this compound ...

journal_title：Protein and peptide letters

authors： Nikolelis DP,Ntanos N,Nikoleli GP,Tampouris K

更新日期：2008-01-01 00:00:00

abstract：:A recombinant human parathyroid hormone (rhPTH) fragment (Gly1-Gln26-rhPTH(1-34)) which contains two amino acids substitutions (Gly1 and Gln26) was acquired through Escherichia coli expression system using a soluble fusion protein strategy. The soluble fusion protein MBP-Gly1-Gln26-rhPTH(1-34) was harvested after puri...

journal_title：Protein and peptide letters

authors： Xu XC,Zhong SD,Kai F,Li LR,Liu C,Liu B,Bao JK

更新日期：2008-01-01 00:00:00

abstract：:Peptides with more than one biological activity are many a times multifunctional peptides. Two peptides with multifunctional properties from alpha (S2)-casein were stabilized in presence of cosolvents for their biological activities like ACE inhibition activity and antioxidant activity. These bioactive peptides in cos...

journal_title：Protein and peptide letters

authors： Srinivas S,Prakash V

更新日期：2008-01-01 00:00:00

abstract：:Increasing antibiotic resistance has led to an urgent need for new therapeutic approaches. Host defense peptides are known to be antimicrobial and have revealed broad immunomodulatory functions for both innate and adaptive immunity. This review will focus on the role of host defense peptides in infection and immune re...

journal_title：Protein and peptide letters

authors： Hirsch T,Jacobsen F,Steinau HU,Steinstraesser L

更新日期：2008-01-01 00:00:00

abstract：:A computer-aided docking study was carried out to quickly clarify the binding structure of the ligand-receptor complex between bisphenol A (BPA), a well-known endocrine disruptor, and estrogen-related receptor gamma (ERRgamma). The resulting complex indicated that BPA binds to the ligand-binding pocket of ERRgamma wit...

journal_title：Protein and peptide letters

authors： Nose T,Shimohigashi Y

更新日期：2008-01-01 00:00:00

abstract：:For biophysical studies using heteronuclear NMR analysis of amyloid beta peptide, construction of an efficient and high yield expression system of uniformly isotopic labeled amyloid beta peptide is desirable. Here we succeeded in obtaining (15)N-labeled amyloid beta 1-40 expressed by attachment to hen egg white lysozy...

journal_title：Protein and peptide letters

authors： Nagata-Uchiyama M,Yaguchi M,Hirano Y,Ueda T

更新日期：2007-01-01 00:00:00

abstract：:Classification of newly determined protein structures is important in understanding their function and mechanism of action. Currently available methods employ a global structure alignment strategy and are computationally expensive. We propose a two-step methodology with a quick screen to significantly reduce the numbe...

journal_title：Protein and peptide letters

authors： Dalal A,Deshmukh S,Wangika PP

更新日期：2007-01-01 00:00:00

abstract：:Free radicals induce protein modifications, often associated to many biological phenomena. This mini-review overviews the approaches we have used to elucidate the radical-induced damages on sulfur-containing enzymes, such as ribonuclease and lysozyme, and the possible post-translational mechanism of the damage to anot...

journal_title：Protein and peptide letters

authors： Torreggiani A,Tamba M,Ferreri C

更新日期：2007-01-01 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

authors： Horton RB,Laversin SA,Reeder SP,Rees RC,McArdle SE

更新日期：2007-01-01 00:00:00

abstract：:Allergy prevalence has increased worldwide over the last 25 years along with industrialization and westernized lifestyles. Indoor allergens are primarily responsible for the sensitization and development of atopic diseases. The main indoor allergens are known to be derived from various arthropods which account for up ...

journal_title：Protein and peptide letters

authors： Jeong KY,Hong CS,Yong TS

更新日期：2007-01-01 00:00:00

abstract：:The reaction between Arg-Gly-Asp (RGD) and Lys-Gly-Asp (KGD) derivatives with 3,4',5-trihydroxy-trans-stilbene (resveratrol) was investigated. Knowing that resveratrol, RGD as well as KGD analogues inhibit human platelet aggregation in vitro, it was tempting for us to examine whether their coupling products present en...

journal_title：Protein and peptide letters

authors： Koutsas C,Sarigiannis Y,Stavropoulos G,Liakopoulou-Kyriakides M

更新日期：2007-01-01 00:00:00

abstract：:An efficient preparation of Periplaneta americana nymphae allergen, Cr PI (54 kDa) is described. It was expressed as a GST-tag fusion protein in Escherichia coli, strain BL21 (DE3). Expression of recombinant Cr PI (rCr PI), denaturation/renaturation of the inclusion bodies and the effects of protein and L-arginine con...

journal_title：Protein and peptide letters

authors： Wu HQ,Liu ZG,Ran PX,Zhou ZW,Gao B

更新日期：2007-01-01 00:00:00

abstract：:Highly efficient coupling reagents, N-methanesulphonyloxy-2-phenyl benzimidazole and N - p-toluenesulphonyloxy-2-phenyl benzimidazole were designed, synthesized and successfully applied in peptide coupling reactions. Their efficiency was evaluated by synthesizing a number of structurally different amides and peptides ...

journal_title：Protein and peptide letters

authors： Kokare ND,Nagawade RR,Rane VP,Shinde DB

更新日期：2007-01-01 00:00:00

abstract：:F(0)F(1)-ATPase is a rotary molecular motor. It is well known that the rotary torque is generated by ATP hydrolysis in F(1) but little is known about how it produces the proton-motive force (PMF) in F(0). Here a cross-linking approach was used to estimate the rotary torque produced by PMF. Three mutant E. coli strains...

journal_title：Protein and peptide letters

authors： Liu X,Cui Y,Chen C,Lai B,Yue J,Zhang Z

更新日期：2007-01-01 00:00:00

abstract：:Although the tertiary structures of mitochondrial cytochromes c (cyts c) seem to be remarkably similar, there are variations in their amino acid sequences, stability and functional properties. GdnHCl-induced unfolding experiments on engineered yeast and horse cyt c were carried out with the aim to to clarify, at molec...

journal_title：Protein and peptide letters

authors： Agueci F,Polticelli F,Sinibaldi F,Piro MC,Santucci R,Fiorucci L

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

authors： Ruggiero A,Chambery A,Di Maro A,Mastroianni A,Parente A,Berisio R

更新日期：2007-01-01 00:00:00

abstract：:Endonuclease tRNase Z catalyzes the generation of the mature 3' end of tRNA precursors through specific endonucleolytic cleavage. The enzyme has been characterized from organisms representative of all domains of life as well as from organelles, and the crystal structure of three bacterial enzymes has been determined. ...

journal_title：Protein and peptide letters

authors： Ceballos M,Vioque A

更新日期：2007-01-01 00:00:00

abstract：:Transgelin was solubly expressed in E. coli. Crystals of transgelin have been grown at 291K using sodium formate or PEG-4000 as precipitants. X-ray diffraction by the crystal extends to 2.3 A resolution. The crystal belongs to the space group P2(1), with the unit cell parameters a=39.3, b=61.9, c=56.0 A and beta=90.2 ...

journal_title：Protein and peptide letters

authors： Liao X,Li S,Lou Z,Chen Z,Bartlam M

更新日期：2007-01-01 00:00:00

abstract：:The catalytic regions of Protein Kinases are known to have similarity in primary chains. However, it is not known whether there is a signature profile specific to a particular catalytic region? Whether the signature profile, if any, is unique to a protein kinases family in a particular species or in a group of species...

journal_title：Protein and peptide letters

authors： Joshi RR,Manda C

更新日期：2007-01-01 00:00:00

abstract：:It is important to understand the conformational biases that are present in unfolded states to understand protein folding. In this context, it is surprising that even a short tripeptide like AFA samples folded/ordered conformation as demonstrated recently by NMR experiments of the peptide in aqueous solution at 280 K....

journal_title：Protein and peptide letters

authors： Patel S,Taimni R,Sasidhar YU

更新日期：2007-01-01 00:00:00

abstract：:Chemical probing of histidine residues using specific modifiers, iodoacetic acid (IAA) and diethylpyrocarbonate (DEP) resulted in the inactivation of phytase (phy A). The kinetic theory of the substrate reaction during the modification of enzyme activity was applied to a study of the kinetics of the course of inactiva...

journal_title：Protein and peptide letters

authors： Wang XY,Sun ML,Zhao DM,Wang M

更新日期：2006-01-01 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 investigated the in vitro antibiotic activity of the 19-amino acid antimicrobial peptide HP (2-20), derived from the N-terminus of Helicobacter pylori Ribosomal Protein L1 (RPL1), against antibiotic susceptible and resistant pathogens from a patient with gallstones. HP (2-20) was active against antibiotic-susceptib...

journal_title：Protein and peptide letters

authors： Park Y,Hahm JS,Hahm KS

更新日期：2006-01-01 00:00:00

abstract：:The physiological stability curve--a plot of the free energy of unfolding versus temperature--is calculated for hen egg white lysozyme from a combination of extrapolated unfolding thermodynamic data from reversible conditions and isothermal titrations with guanidine hydrochloride. The shape of the curve suggests the e...

journal_title：Protein and peptide letters

authors： Younvanich SS,Britt BM

更新日期：2006-01-01 00:00:00

abstract：:We report the stepwise transformation of a linear peptide epitope recognized by the anti-transforming growth factor alpha monoclonal antibody Tab2 into peptomers and finally into peptoid analogs. The key experiment in this study is the substitution analysis in which each position of the peptide is exchanged by a set o...

journal_title：Protein and peptide letters

authors： Hoffmann B,Ast T,Polakowski T,Reineke U,Volkmer R

更新日期：2006-01-01 00:00:00

abstract：:Human beta-defensin-2 (hBD2) is A small cationic peptide with A broad range of antimicrobial activity. An E. coli cell-free system was employed to express the hBD2 fusion protein by using the hBD2 gene with 14 rare codons. The results showed that the expression level of trxA-hBD2 fusion protein was 0.35 mg/ml, which i...

journal_title：Protein and peptide letters

authors： Chen H,Xu Z,Cen P

更新日期：2006-01-01 00:00:00

abstract：:The etiology of multiple sclerosis (MS) remains unclear. To determine if autoantibodies to myelin basic protein (MBP) are produced during parvovirus B19 infection, a competitive ELISA was performed using plasma from MS patients exhibiting high IgG titers for parvovirus. Our results showed the addition of MBP decreased...

journal_title：Protein and peptide letters

authors： Thomas G,Rael L,Shimonkevitz R,Melamed I,Bar-Or D

更新日期：2006-01-01 00:00:00

abstract：:We report a new prohormone convertase gene of insect origin, Trichoplusia ni furin, which was cloned from BTI-Tn-5B-4 (Tn5) insect cells. We constructed a truncated mutant that lacked Cys-rich repeated segments. Using baculovirus expression system and standard enzymatic assay, we obtained recombinant Tn furin and eval...

journal_title：Protein and peptide letters

authors： Wang L,Xu D,Qian M,Yang G,Wu X

更新日期：2006-01-01 00:00:00

abstract：:Neuronal tau, through its proline-rich domain and the microtubule binding domain, binds to RNA non-sequence-specifically via electrostatic interaction. This binding inhibits the activity of tau. Tau and RNA were also found to co-localize in SH-SY5Y cells suggesting that RNA has opportunities to interact with tau in ce...

journal_title：Protein and peptide letters

authors： Wang X,Wang D,Zhao J,Qu M,Zhou X,He H,He R

更新日期：2006-01-01 00:00:00

abstract：:Structural-energetic analysis of peptide and protein antigens in the context of binding to antibody reveals fundamental differences between the cross-reactions of antipeptide antibody with protein and antiprotein antibody with peptide, providing a physicochemical basis for B-cell epitope prediction as applied to the d...

journal_title：Protein and peptide letters

authors： Caoili SE

更新日期：2006-01-01 00:00:00

abstract：:We examined the production and secretion of fusion constructs containing alpha-N-acetylglucosaminidase, the enzyme deficient in Sanfilippo B, and either wildtype TAT or modified TAT in cultured Spodoptera frugiperda cells. All constructs exhibited successful expression of active enzyme, suggesting the future possibili...

journal_title：Protein and peptide letters

authors： Bandsmer JC,Campbell TN,Cheyne I,Choy FY

更新日期：2006-01-01 00:00:00

abstract：:Norepinephrine-stimulated skin secretions from the Sante Fe frog Leptodactylus laticeps contained high concentrations of a peptide, termed laticeptin, with the primary structure Gly-Val-Val-Asp-Ile-Leu-Lys-Gly-Ala-Ala-Lys-Asp-Leu-Ala-Gly-His-Leu-Ala-Thr-Lys-Val-Met-Asn-Lys-Leu.NH(2). Laticeptin inhibited the growth of...

journal_title：Protein and peptide letters

authors： Conlon JM,Al-Ghaferi N,Abraham B,Sonnevend A,King JD,Nielsen PF

更新日期：2006-01-01 00:00:00

abstract：:The formation of local structure, in short peptides has been probed by examining cleavage patterns and rates of proteolysis of designed sequences with a high tendency to form beta-hairpin structures. Three model sequences which bear fluorescence donor and acceptor groups have been investigated: [see text]. Fluorescenc...

journal_title：Protein and peptide letters

authors： Saikumari YK,Ravindra G,Balaram P

更新日期：2006-01-01 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：: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

authors： Csóková N,Skrabana R,Urbániková L,Kovácech B,Popov A,Sevcík J,Novák M

更新日期：2006-01-01 00:00:00