Atrazine chlorohydrolase from Pseudomonas sp. strain ADP is a metalloenzyme.

abstract：:Unfractionated Escherichia coli tRNA has been aminoacylated with lysine and preferentially acetylated at the epsilon-amino nitrogen of lysine by reaction with N-acetoxysuccinimide. After treatment with peptidyl-tRNA hydrolase, 90% of the aminoacylated tRNA molecules were Nepsilon-acetyl-Lys-tRNA. Post-ribosomal supern...

journal_title：Biochemistry

authors： Johnson AE,Woodward WR,Herbert E,Menninger JR

更新日期：1976-02-10 00:00:00

abstract：:When grown under O2-limited conditions, Escherichia coli expresses a cytochrome bd quinol oxidase that has an unusually high affinity for O2. We have studied the reaction of cytochrome bd with CO and O2 by rapid-reaction spectrophotometry. The reduced enzyme forms a photosensitive ferrocytochrome d-CO complex, and fol...

journal_title：Biochemistry

authors： Hill BC,Hill JJ,Gennis RB

更新日期：1994-12-20 00:00:00

abstract：:In clostridial-type ferredoxins, each of the two [4Fe-4S]2+/+ clusters receives three of its four ligands from a CysXXCysXXCys motif. Azotobacter vinelandii ferredoxin I (AvFdI) is a seven-iron ferredoxin that contains one [4Fe-4S]2+/+ cluster and one [3Fe-4S]+/0 cluster. During the evolution of the 7Fe azotobacter-ty...

journal_title：Biochemistry

authors： Kemper MA,Gao-Sheridan HS,Shen B,Duff JL,Tilley GJ,Armstrong FA,Burgess BK

更新日期：1998-09-15 00:00:00

abstract：:Among the molecular strategies bacteria have set up to quickly match their transcriptional program to new environments, changes in sequence-mediated DNA curvature play a crucial role. Bacterial promoters, especially those of mesophilic bacteria, are in general preceded by a curved region. The marked thermosensitivity ...

journal_title：Biochemistry

authors： Prosseda G,Mazzola A,Di Martino ML,Tielker D,Micheli G,Colonna B

更新日期：2010-04-06 00:00:00

abstract：:Terminase is an enzyme from bacteriophage lambda that is required for insertion of the viral genome into an empty pro-capsid. This enzyme is composed of the viral proteins gpNu1 (20.4 kDa) and gpA (73.3 kDa) in a holoenzyme complex. Current models for terminase assembly onto DNA suggest that gpNu1 binds to three repea...

journal_title：Biochemistry

authors： Yang Q,de Beer T,Woods L,Meyer JD,Manning MC,Overduin M,Catalano CE

更新日期：1999-01-05 00:00:00

abstract：:Imidazolonepropionase (HutI) (imidazolone-5-propanote hydrolase, EC 3.5.2.7) is a member of the amidohydrolase superfamily and catalyzes the conversion of imidazolone-5-propanoate to N-formimino-L-glutamate in the histidine degradation pathway. We have determined the three-dimensional crystal structures of HutI from A...

journal_title：Biochemistry

authors： Tyagi R,Eswaramoorthy S,Burley SK,Raushel FM,Swaminathan S

更新日期：2008-05-20 00:00:00

abstract：:The correlation of the UVRR nuW3 mode with the tryptophan chi(2,1) dihedral angle [Maruyama and Takeuchi (1995) J. Raman Spectrosc. 26, 319; Miura et al. (1989) J. Raman Spectrosc. 20, 667; Takeuchi (2003) Biopolymers 72, 305] has been extended to a full, 360 degrees rotation. The 3-fold periodicity of the relationshi...

journal_title：Biochemistry

authors： Juszczak LJ,Desamero RZ

更新日期：2009-03-31 00:00:00

abstract：:Extracts of two human glioma cell lines (lacking O6-methylguanine DNA-methyltransferase) (i.e., A1235 and its alkylation-resistant derivative A1235-MR4) were examined for their ability to execute strand incision at different base mismatches in model (45-bp) DNA. These heteroduplex substrates were of the same sequence ...

journal_title：Biochemistry

authors： Lari SU,Al-Khodairy F,Paterson MC

更新日期：2002-07-23 00:00:00

abstract：:The mechanism by which acyl-CoA dehydrogenases initiate catalysis was studied by using p-substituted phenylacetyl-CoAs (substituents-NO2, -CN, and CH3CO-), 3S-C8-, and 3'-dephospho-3S-C8CoA. These analogues lack a beta C-H and cannot undergo alpha,beta-dehydrogenation. Instead they deprotonate at alpha C-H at pH > or ...

journal_title：Biochemistry

authors： Vock P,Engst S,Eder M,Ghisla S

更新日期：1998-02-17 00:00:00

abstract：:The microtubule-associated protein tau, in a hyperphosphorylated form, aggregates into insoluble paired-helical filaments (PHFs) in Alzheimer's disease (AD) and other tauopathies. In AD, there is approximately 8 mol of phosphate per mole of tau distributed among approximately 30 PHF phosphorylation sites as compared t...

journal_title：Biochemistry

authors： Sun Q,Gamblin TC

更新日期：2009-06-30 00:00:00

abstract：:ZFY, a male-associated Zn-finger protein encoded by the human Y chromosome, exhibits a distinctive two-finger repeat: whereas odd-numbered domains fit a general consensus, even-numbered domains exhibit systematic differences. Do these odd and even sequences encode structurally distinct surfaces for DNA recognition? As...

journal_title：Biochemistry

authors： Kochoyan M,Keutmann HT,Weiss MA

更新日期：1991-07-23 00:00:00

abstract：:His51 in horse liver alcohol dehydrogenase (ADHE) has been proposed to act as a proton donor/acceptor in the NAD+/NADH-dependent oxidation/reduction of alcohol/aldehyde. The residue corresponding to His51 of ADHE is Val51 (Val45 in the protein sequence) in benzyl alcohol dehydrogenase (BADH) encoded by TOL plasmid pWW...

journal_title：Biochemistry

authors： Inoue J,Tomioka N,Itai A,Harayama S

更新日期：1998-03-10 00:00:00

abstract：:The immunoglobulin E-binding protein, epsilon BP (also known as CBP35, Mac-2, L-34, and L-29), is a beta-galactoside-binding protein of approximately 30 kDa and a member of the animal lectin family termed S-type or S-Lac. Multiple biological activities have been attributed to this lectin such as mediation of IgE bindi...

journal_title：Biochemistry

authors： Feizi T,Solomon JC,Yuen CT,Jeng KC,Frigeri LG,Hsu DK,Liu FT

更新日期：1994-05-24 00:00:00

abstract：:HcbA1 is a unique flavoenzyme that catalyzes the first step in the bacterial hexachlorobenzene catabolic pathway. Here we report in vitro reconstitution of the HcbA1-catalyzed reaction. Detailed mechanistic studies provide evidence for nucleophilic aromatic substitution and flavin-N5-oxide formation. ...

journal_title：Biochemistry

authors： Adak S,Begley TP

更新日期：2019-03-05 00:00:00

abstract：:The p90 ribosomal S6 family of kinases (RSK) are potential drug targets, due to their involvement in cancer and other pathologies. There are currently only two known selective inhibitors of RSK, but the basis for selectivity is not known. One of these inhibitors is a naturally occurring kaempferol-α-L-diacetylrhamnosi...

journal_title：Biochemistry

authors： Utepbergenov D,Derewenda U,Olekhnovich N,Szukalska G,Banerjee B,Hilinski MK,Lannigan DA,Stukenberg PT,Derewenda ZS

更新日期：2012-08-21 00:00:00

abstract：:DNA topoisomerase II is believed to be the enzyme that produces the protein-associated DNA strand breaks observed in mammalian cell nuclei treated with various intercalating agents. Two intercalators--4'-(9-acridinylamino)methanesulfon-m-anisidide (m-AMSA, amsacrine) and 2-methyl-9-hydroxyellipticinium (2-Me-9-OH-E+)-...

journal_title：Biochemistry

authors： Pommier Y,Minford JK,Schwartz RE,Zwelling LA,Kohn KW

更新日期：1985-11-05 00:00:00

abstract：:His216 is a well-conserved residue in pyruvate carboxylases and, on the basis of structures of the enzyme, appears to have a role in the binding of MgATP, forming an interaction with the 3'-hydroxyl group of the ribose ring. Mutation of this residue to asparagine results in a 9-fold increase in the Km for MgATP in its...

journal_title：Biochemistry

authors： Adina-Zada A,Jitrapakdee S,Wallace JC,Attwood PV

更新日期：2014-02-18 00:00:00

abstract：:Atlantic salmon fast skeletal muscle is composed of an α-type tropomyosin that shares 20 substitutions with a mammalian homologue. Prominent isomorphisms considered to be potentially destabilizing include threonine 179 (core, Ala in rabbit) and a unique pair of glycines, residues 24 and 27. Bacterially expressed mutan...

journal_title：Biochemistry

authors： Fudge KR,Heeley DH

更新日期：2015-05-05 00:00:00

abstract：:The reaction of cytochrome c oxidase (COX) from Rhodobacter sphaeroides with hydrogen peroxide has been studied at alkaline (pH 8.5) and acidic (pH 6.5) conditions with the aid of a stopped-flow apparatus. Absorption changes in the entire 350-800 nm spectral range were monitored and analyzed by a global fitting proced...

journal_title：Biochemistry

authors： Pecoraro C,Gennis RB,Vygodina TV,Konstantinov AA

更新日期：2001-08-14 00:00:00

abstract：:Acidic fibroblast growth factor (aFGF) is a signal peptide-less protein that is secreted into the extracellular compartment as part of a multiprotein release complex, consisting of aFGF, S100A13 (a calcium binding protein), and a 40 kDa (p40) form of synaptotagmin (Syt1), a protein that participates in the docking of ...

journal_title：Biochemistry

authors： Rajalingam D,Graziani I,Prudovsky I,Yu C,Kumar TK

更新日期：2007-08-14 00:00:00

abstract：:Uronate isomerase (URI) catalyzes the reversible isomerization of D-glucuronate to D-fructuronate and of D-galacturonate to D-tagaturonate. URI is a member of the amidohydrolase superfamily (AHS), a highly divergent group of enzymes that catalyze primarily hydrolytic reactions. The chemical mechanism and active site s...

journal_title：Biochemistry

authors： Nguyen TT,Fedorov AA,Williams L,Fedorov EV,Li Y,Xu C,Almo SC,Raushel FM

更新日期：2009-09-22 00:00:00

abstract：:The rapid phosphorylation and dephosphorylation of a variety of proteins downstream of the endothelin receptors A and B was investigated following stimulation of human lung fibroblasts with endothelin-1. Changes in the phosphorylation of proteins involved in the cell cycle, cytoskeleton, membrane channels, transcripti...

journal_title：Biochemistry

authors： Stannard C,Soskic V,Godovac-Zimmermann J

更新日期：2003-12-02 00:00:00

abstract：:The inflammatory mediator nitric oxide (NO*) promotes apoptotic cell death based on morphological evidence, accumulation of the tumor suppressor p53, caspase-3 activation, and DNA fragmentation in RAW 264.7 macrophages. Since nitrosothiols may actually be the predominant form of biologically active NO* in vivo, we use...

journal_title：Biochemistry

authors： Callsen D,Brüne B

更新日期：1999-02-23 00:00:00

abstract：:The one-for-one exchange of Cl(-) and HCO(3)(-) ions is catalyzed by human erythrocyte anion exchanger 1 (hAE1) through a ping-pong mechanism whereby the protein exists in two main conformations, with the single anion-binding site exposed at either the cytoplasmic (inner) side (E(i)) or the extracellular side (E(o)), ...

journal_title：Biochemistry

authors： Pal P,Lebedev D,Salim S,Knauf PA

更新日期：2006-05-23 00:00:00

abstract：:Terreic acid is a metabolite with antibiotic properties produced by the fungus Aspergillus terreus. We found that terreic acid is a covalent inhibitor of the bacterial cell wall biosynthetic enzyme MurA from Enterobacter cloacae and Escherichia coli in vitro. The crystal structure of the MurA dead-end complex with ter...

journal_title：Biochemistry

authors： Han H,Yang Y,Olesen SH,Becker A,Betzi S,Schönbrunn E

更新日期：2010-05-18 00:00:00

abstract：:Carbohydrate-binding module (CBM) family 13 includes the "R-type" or "ricin superfamily" beta-trefoil lectins. The C-terminal CBM, CBM13, of xylanase 10A from Streptomyces lividans is a family 13 CBM that is not only structurally similar to the "R-type" lectins but also somewhat functionally similar. The primary funct...

journal_title：Biochemistry

authors： Notenboom V,Boraston AB,Williams SJ,Kilburn DG,Rose DR

更新日期：2002-04-02 00:00:00

abstract：:Protein misfolding and aggregation is a ubiquitous phenomenon associated with a wide range of diseases. The synuclein family comprises three small naturally unfolded proteins implicated in neurodegenerative diseases and some forms of cancer. α-Synuclein is a soluble protein that forms toxic inclusions associated with ...

journal_title：Biochemistry

authors： Surgucheva I,Sharov VS,Surguchov A

更新日期：2012-06-12 00:00:00

abstract：:For some hormone receptors, the early events of signal transduction depend on their molecular arrangement and interactions at the cell surface. An understanding of the mechanism of signal transduction in general needs a careful analysis of the receptor distribution. Here, we present the first quantitative measurement ...

journal_title：Biochemistry

authors： St-Pierre PR,Petersen NO

更新日期：1992-03-10 00:00:00

abstract：:The N-type voltage-gated Ca(2+) channel CaV2.2 is one of the important targets for pain management. ω-Conotoxins isolated from venoms of cone snails, which specifically inhibit CaV2.2, are promising scaffolds for novel analgesics. The inhibitory action of ω-conotoxins on CaV2.2 has been examined experimentally, but th...

journal_title：Biochemistry

authors： Chen R,Chung SH

更新日期：2013-05-28 00:00:00

abstract：:GGAs are a family of vesicle-coating regulatory proteins that function in intracellular protein transport. A GGA molecule contains four domains, each mediating interaction with other proteins in carrying out intracellular transport. The GAT domain of GGAs has been identified as the structural entity that binds membran...

journal_title：Biochemistry

authors： Zhu G,Zhai P,He X,Terzyan S,Zhang R,Joachimiak A,Tang J,Zhang XC

更新日期：2003-06-03 00:00:00