Assessment of the number of free cysteines and isolation and identification of cystine-containing peptides from acetylcholine receptor.

abstract：:(R)-N(delta)-(N'-Sulfodiaminophosphinyl)-L-ornithine (PSorn) is the active component of a phytotoxin, called phaseolotoxin, produced by Pseudomonas savastanoi pv. phaseolicola. PSorn acts as a potent transition state (TS) inhibitor of ornithine transcarbamoylase (OTCase, E.C. 2.1.3.3) that binds to the OTCase from Esc...

journal_title：Biochemistry

authors： Templeton MD,Reinhardt LA,Collyer CA,Mitchell RE,Cleland WW

更新日期：2005-03-22 00:00:00

abstract：:In halophilic archaea the photophobic response is mediated by the membrane-embedded 2:2 photoreceptor/-transducer complex SRII/HtrII, the latter being homologous to the bacterial chemoreceptors. Both systems bias the rotation direction of the flagellar motor via a two-component system coupled to an extended cytoplasmi...

journal_title：Biochemistry

authors： Orban-Glaß I,Voskoboynikova N,Busch KB,Klose D,Rickert C,Mosslehy W,Roder F,Wilkens V,Piehler J,Engelhard M,Steinhoff HJ,Klare JP

更新日期：2015-01-20 00:00:00

abstract：:Homing endonucleases are distinguished by their ability to catalyze the cleavage of double-stranded DNA with extremely high specificity. I-PpoI endonuclease, a homing endonuclease from the slime mold Physarum polycephalum, is a small enzyme (2 x 20 kDa) of known three-dimensional structure that catalyzes the cleavage ...

journal_title：Biochemistry

authors： Mannino SJ,Jenkins CL,Raines RT

更新日期：1999-12-07 00:00:00

abstract：:Genetic knockout of the BtR4 gene encoding the Heliothis virescens cadherin-like protein (HevCaLP) is linked to resistance against Cry1Ac toxin from Bacillus thuringiensis. However, the functional Cry1Ac receptor role of this protein has not been established. We previously proposed HevCaLP as a shared binding site for...

journal_title：Biochemistry

authors： Jurat-Fuentes JL,Adang MJ

更新日期：2006-08-15 00:00:00

abstract：:3-Deoxy-d-manno-octulosonate 8-phosphate (KDO8P) synthase catalyzes the condensation of arabinose 5-phosphate (A5P) and phosphoenolpyruvate (PEP) to form KDO8P, a key precursor in the biosynthesis of the endotoxin of Gram-negative bacteria. Earlier studies have established that the condensation occurs with a syn addit...

journal_title：Biochemistry

authors： Tao P,Gatti DL,Schlegel HB

更新日期：2009-12-15 00:00:00

abstract：:The association between the papillomavirus E1 and E2 proteins is an important regulatory interaction, imparting coordinated control of viral transcription and replication. Using fluorescence polarization, we have characterized the interactions between HPV-11 E1, HPV-11 E2, and DNA in solution at equilibrium. For these...

journal_title：Biochemistry

authors： Chao SF,Rocque WJ,Daniel S,Czyzyk LE,Phelps WC,Alexander KA

更新日期：1999-04-06 00:00:00

abstract：:We investigated how the intrinsic sequence-dependent properties probed via the phosphate linkages (BI ↔ BII equilibrium) influence the preferred shape of free DNA, and how this affects the nucleosome formation. First, this exploits NMR solution studies of four B-DNA dodecamers that together cover 39 base pairs of the ...

journal_title：Biochemistry

authors： Xu X,Ben Imeddourene A,Zargarian L,Foloppe N,Mauffret O,Hartmann B

更新日期：2014-09-09 00:00:00

abstract：:A series of secreted proteases are included among the virulence factors documented for Staphylococcus aureus. In light of increasing antibiotic resistance of this dangerous human pathogen, these proteases are considered as suitable targets for the development of novel therapeutic strategies. The recent discovery of st...

journal_title：Biochemistry

authors： Dubin G,Krajewski M,Popowicz G,Stec-Niemczyk J,Bochtler M,Potempa J,Dubin A,Holak TA

更新日期：2003-11-25 00:00:00

abstract：:It is well-known that the rapid flow of water into and out of cells is controlled by membrane proteins called aquaporins (AQPs). However, the mechanisms that allow cells to quickly respond to a changing osmotic environment are less well established. Using GFP-AQP fusion proteins expressed in HEK293 cells, we demonstra...

journal_title：Biochemistry

authors： Conner MT,Conner AC,Brown JE,Bill RM

更新日期：2010-02-09 00:00:00

abstract：:The physical origin of the extremely high thermal stability of tetraether liposomes composed of the polar lipid fraction E (PLFE) from the thermoacidophilic archaebacterium Sulfolobus acidocaldarius has been investigated. The leakage rate of trapped 5, 6-carboxyfluorescein (5(6)CF) and the proton permeability in PLFE ...

journal_title：Biochemistry

authors： Komatsu H,Chong PL

更新日期：1998-01-06 00:00:00

abstract：:Transient phosphorylation at an aspartate residue on the Spo0F protein is a central step in the phosphorelay signal transduction pathway controlling sporulation in Bacilli. The response regulator Spo0F-P is stable to hydrolysis (t1/2 > 24 h at 23 degrees C in the absence of Mg2+), allowing the use of nondenaturing PAG...

journal_title：Biochemistry

authors： Zapf JW,Hoch JA,Whiteley JM

更新日期：1996-03-05 00:00:00

abstract：:4-Hydroxybenzoyl-CoA reductase (4-HBCR) is a member of the xanthine oxidase (XO) family of molybdenum cofactor containing enzymes and catalyzes the irreversible removal of a phenolic hydroxy group by reduction, yielding benzoyl-CoA and water. In this work the effects of various activity modulating compounds were chara...

journal_title：Biochemistry

authors： Johannes J,Unciuleac MC,Friedrich T,Warkentin E,Ermler U,Boll M

更新日期：2008-04-29 00:00:00

abstract：:Although G protein-coupled receptor (GPCR) kinases (GRKs) have been shown to mediate desensitization of numerous GPCRs in studies using cellular expression systems, their function under physiological conditions is less well understood. In the current study, we employed various strategies to assess the effect of inhibi...

journal_title：Biochemistry

authors： Kong KC,Gandhi U,Martin TJ,Anz CB,Yan H,Misior AM,Pascual RM,Deshpande DA,Penn RB

更新日期：2008-09-02 00:00:00

abstract：:The solution structure of a modified undecamer duplex containing (-)-(7R,8S,9R,10S)-7,8-dihydroxy-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a] pyrene covalently bonded through trans ring opening at C10 of the epoxide by the N6-amino group of deoxyadenosine (dA) was studied. This diol epoxide 1 diastereomer has the benzylic ...

journal_title：Biochemistry

authors： Schurter EJ,Sayer JM,Oh-hara T,Yeh HJ,Yagi H,Luxon BA,Jerina DM,Gorenstein DG

更新日期：1995-07-18 00:00:00

abstract：:Kinetic and structural changes in recombinant human aldose reductase (AR) due to modification by S-nitrosoglutathione (GSNO) were investigated. Incubation of the enzyme with 10-50 microM GSNO led to a time- and concentration-dependent inactivation of the enzyme, with a second-order rate constant of 0.087 +/- 0.009 M-1...

journal_title：Biochemistry

authors： Chandra A,Srivastava S,Petrash JM,Bhatnagar A,Srivastava SK

更新日期：1997-12-16 00:00:00

abstract：:Polyphosphate glucokinase from Mycobacterium tuberculosis catalyzes the phosphorylation of glucose using inorganic polyphosphates [poly(P)] or ATP. The steady-state kinetic mechanisms of the poly(P)- and ATP-dependent glucokinase reactions were investigated using initial velocity, product inhibition, and dead-end inhi...

journal_title：Biochemistry

authors： Hsieh PC,Kowalczyk TH,Phillips NF

更新日期：1996-07-30 00:00:00

abstract：:The inhibition mechanism of serpins requires a change in structure to entrap the target proteinase as a stable acyl-enzyme complex. Although it has generally been assumed that reactive center loop insertion and associated conformational change proceeds in a concerted manner, this has not been demonstrated directly. Th...

journal_title：Biochemistry

authors： Blouse GE,Perron MJ,Thompson JH,Day DE,Link CA,Shore JD

更新日期：2002-10-08 00:00:00

abstract：:We report here that polyamide nucleic acid (PNA) as well as a polyamide nucleic acid-DNA chimera complementary to the primer binding site of the HIV-1 genome can completely block priming by tRNA3Lys and consequently the in vitro initiation of reverse transcription by HIV-1 RT. Conventional heating and cooling is not r...

journal_title：Biochemistry

authors： Lee R,Kaushik N,Modak MJ,Vinayak R,Pandey VN

更新日期：1998-01-20 00:00:00

abstract：:The fluorescent nucleotide analogue of ADP, 1,N6-ethenoadenosine diphosphate (epsilon ADP), has been used to probe the active site of myosin subfragment 1 (SF1). The Mg complex of ADP was shown to be trapped stoichiometrically at the active site by a variety of thiol cross-linking agents having sulfur to sulfur spanni...

journal_title：Biochemistry

authors： Perkins WJ,Wells JA,Yount RG

更新日期：1984-08-14 00:00:00

abstract：:Single mutations of three amino acid residues in the vicinity of the primary electron donor, P, in the reaction center (RC) from Rhodobacter (Rb.) sphaeroides were constructed and characterized in order to study the effects of hydrogen-bonding on the physical properties of P. The mutations, Phe M197-->Tyr, Met L248-->...

journal_title：Biochemistry

authors： Wachtveitl J,Farchaus JW,Das R,Lutz M,Robert B,Mattioli TA

更新日期：1993-11-30 00:00:00

abstract：:Glutathione S-transferase, from the malarial parasite Plasmodium falciparum (PfGST), exerts a protective role in the organism and is thus considered an interesting target for antimalarial drug development. In contrast to other GSTs, it is present in solution as a tetramer and a dimer in equilibrium, which is induced b...

journal_title：Biochemistry

authors： Quesada-Soriano I,Barón C,García-Maroto F,Aguilera AM,García-Fuentes L

更新日期：2013-03-19 00:00:00

abstract：:We describe a novel, potent peptide substrate mimetic inhibitor of protein kinase B (PKB/Akt). The compound selectively kills prostate cancer cells, in which PKB is highly activated, but not normal cells, or cancer cells in which PKB is not activated. The inhibitor induces apoptosis and inhibits the phosphorylation of...

journal_title：Biochemistry

authors： Litman P,Ohne O,Ben-Yaakov S,Shemesh-Darvish L,Yechezkel T,Salitra Y,Rubnov S,Cohen I,Senderowitz H,Kidron D,Livnah O,Levitzki A,Livnah N

更新日期：2007-04-24 00:00:00

abstract：:Linker histone H1 plays an essential role in chromatin organization. Proper deposition of linker histone H1 as well as its removal is essential for chromatin dynamics and function. Linker histone chaperones perform this important task during chromatin assembly and other DNA-templated phenomena in the cell. Our in vitr...

journal_title：Biochemistry

authors： Gadad SS,Senapati P,Syed SH,Rajan RE,Shandilya J,Swaminathan V,Chatterjee S,Colombo E,Dimitrov S,Pelicci PG,Ranga U,Kundu TK

更新日期：2011-04-12 00:00:00

abstract：:N-Ethylmaleimide modified heavy meromyosin in only 3-fold activated by actin rather than 200-fold as is normal heavy meromyosin (Silverman, R., Eisenberg, E., and Kielley, W. W. (1972), Nature (London) 240, 207). Ultracentrifuge studies demonstrated that in the absence of ATP the N-ethylmaleimide modified heavy merom...

journal_title：Biochemistry

authors： Mulhern S,Eisenberg E,Kielley WW

更新日期：1975-08-26 00:00:00

abstract：:The folding and unfolding rates of the small protein, barstar, have been monitored using stopped-flow measurements of intrinsic tryptophan fluorescence at 25 degrees C, pH 8.5, and have been compared over a wide range of urea and guanidine hydrochloride (GdnHCl) concentrations. When the logarithms of the rates of fold...

journal_title：Biochemistry

authors： Sridevi K,Udgaonkar JB

更新日期：2002-02-05 00:00:00

abstract：:The SfiI restriction enzyme binds to DNA as a tetramer holding two usually distant DNA recognition sites together before cleavage of the four DNA strands. To elucidate structural properties of the SfiI-DNA complex, atomic force microscopy (AFM) imaging of the complexes under noncleaving conditions (Ca2+ instead of Mg2...

journal_title：Biochemistry

authors： Lushnikov AY,Potaman VN,Oussatcheva EA,Sinden RR,Lyubchenko YL

更新日期：2006-01-10 00:00:00

abstract：:RuvC is a well-characterized Holliday junction resolvase from E. coli. The presence of symmetry in its preferred recognition sequence leads to ambiguity in the position of the crossover point in the junction, because a symmetric junction can undergo branch migration. Symmetric immobile junctions are junctions that con...

journal_title：Biochemistry

authors： Sha R,Liu F,Iwasaki H,Seeman NC

更新日期：2002-09-10 00:00:00

abstract：:Osteopontin (OPN) is an acidic hydrophilic glycophosphoprotein that was first identified as a major sialoprotein in bones. It functions as a cell attachment protein displaying a RGD cell adhesion sequence and as a cytokine that signals through integrin and CD44 cell adhesion molecules. OPN is also implicated in human ...

journal_title：Biochemistry

authors： Platzer G,Schedlbauer A,Chemelli A,Ozdowy P,Coudevylle N,Auer R,Kontaxis G,Hartl M,Miles AJ,Wallace BA,Glatter O,Bister K,Konrat R

更新日期：2011-07-12 00:00:00

abstract：:The complete amino acid sequence of the major component myoglobin from the dwarf sperm whale, Kogia simus, was determined by specific cleavage of the protein to obtain large peptides which are readily degraded by the automatic sequenator. Three easily separable peptides were obtained by cleaving the protein at its two...

journal_title：Biochemistry

authors： Dwulet FE,Jones BN,Lehman LD,Gurd FR

更新日期：1977-03-08 00:00:00

abstract：:Nonribosomal peptide synthetases (NRPSs) are megasynthetases that require complex and specific interactions between multiple domains and proteins to functionally produce a metabolite. MbtH-like proteins (MLPs) are integral components of many NRPSs and interact directly with the adenylation domain of the megasynthetase...

journal_title：Biochemistry

authors： Schomer RA,Park H,Barkei JJ,Thomas MG

更新日期：2018-07-17 00:00:00