Purification and biochemical characterization of tubulin from the budding yeast Saccharomyces cerevisiae.

abstract：:The misfolding of amyloid beta (Aβ) is one of the predominant hallmarks in the pathology of Alzheimer's disease (AD). In this study, we showed that the formation of the Aβ ion channel on the membrane depended on the cholesterol concentration. From a mechanical aspect, we found that cholesterol levels affected the stab...

journal_title：Biochemistry

authors： Gao Q,Wu G,Lai KWC

更新日期：2020-03-03 00:00:00

abstract：:The pH dependence of the 13C chemical shifts of the side-chain carboxyl carbons of all Asp and Glu residues in the reduced and oxidized states of human thioredoxin and in a mixed disulfide complex of human thioredoxin with a target peptide from the transcription factor NF kappa B has been investigated by multidimensio...

journal_title：Biochemistry

authors： Qin J,Clore GM,Gronenborn AM

更新日期：1996-01-09 00:00:00

abstract：:Sequence-specific assignments of 1H NMR resonances are obtained for the backbone protons of Escherichia coli acyl carrier protein, acylated with an eight-carbon chain covalently attached to the prosthetic group thiol (octanoyl-ACP). Comparison of 1H-1H sequential connectivities in the NOESY spectra of octanoyl-ACP and...

journal_title：Biochemistry

authors： Jones PJ,Holak TA,Prestegard JH

更新日期：1987-06-16 00:00:00

abstract：:The hepatic metabolism of deuteriated D-methionine has been studied in the intact, anesthetized rat using 2H NMR spectroscopy. The rate of formation of the principal labeled metabolite, [methyl-2H3]sarcosine, from the D-[methyl-2H3]methionine precursor was found to be as rapid as the rate observed previously in NMR st...

journal_title：Biochemistry

authors： London RE,Gabel SA

更新日期：1988-10-04 00:00:00

abstract：:The determination of solution structures of proteins using two-dimensional NMR data is commonly based on the assumption that the structure can be represented by a single rigid conformer. We present here a procedure whereby this assumption can be relaxed and illustrate its application to acyl carrier protein from Esche...

journal_title：Biochemistry

authors： Kim Y,Prestegard JH

更新日期：1989-10-31 00:00:00

abstract：:Src SH3 is a small all-beta-sheet protein composed of a single domain. We studied the folding behavior of src SH3 at various conditions by circular dichroism (CD), fluorescence, and X-ray solution scattering methods. On the src SH3 folding pathway, an alpha-helix-rich intermediate appeared not only at subzero temperat...

journal_title：Biochemistry

authors： Li J,Shinjo M,Matsumura Y,Morita M,Baker D,Ikeguchi M,Kihara H

更新日期：2007-05-01 00:00:00

abstract：:Human immunoglobulin E (IgE) consists of 14 domains, each with the characteristic immunoglobulin fold structure. Compared with the 12-domain structure of immunoglobulin G (IgG), IgE has an additional pair of domains (C epsilon 2) in the Fc region in place of the hinge of IgG. The crystal structure of the 4-domain Fc f...

journal_title：Biochemistry

authors： Beavil AJ,Young RJ,Sutton BJ,Perkins SJ

更新日期：1995-11-07 00:00:00

abstract：:The interaction of the retroviral nucleocapsid protein (NC) with nucleic acids forms the basis of its varied roles in the replication cycle, which include binding and condensing the viral RNA within the virion, stimulation of the early steps in reverse transcription, and dissociation from RNA in the replication comple...

journal_title：Biochemistry

authors： Secnik J,Gelfand CA,Jentoft JE

更新日期：1992-03-24 00:00:00

abstract：:The N-terminus of the major polypeptide component of the light-harvesting complex (LHC) from the brown alga Laminaria saccharina is blocked. Two partial sequences, one near the N-terminus and the other near the C-terminus, have been obtained by chemical cleavage with acetic acid and N-chlorosuccinimide. Four peptides ...

journal_title：Biochemistry

authors： Douady D,Rousseau B,Caron L

更新日期：1994-03-22 00:00:00

abstract：:An enzyme with FAD-AMP lyase (cyclizing) activity, splitting FAD to AMP and riboflavin 4',5'-phosphate (cFMN), was recently identified [Fraiz, F., et al. (1998) Biochem. J. 330, 881-888]. Now, it has been purified to apparent homogeneity from a rat liver supernatant, by a procedure that includes affinity for ADP-agaro...

journal_title：Biochemistry

authors： Cabezas A,Pinto RM,Fraiz F,Canales J,González-Santiago S,Cameselle JC

更新日期：2001-11-13 00:00:00

abstract：:Membrane fusion induced by the hemagglutinin glycoprotein of influenza virus has been extensively characterized, but the mechanism whereby the protein achieves the merger of the viral and target membrane lipids remains enigmatic. Various lipid intermediate structures have been proposed, and the energies required for t...

journal_title：Biochemistry

authors： Nebel S,Bartoldus I,Stegmann T

更新日期：1995-05-02 00:00:00

abstract：:The sex steroid binding protein (SBP) of human pregnancy serum was purified to homogeneity by the sequential use of ammonium sulfate precipitation, affinity chromatography on 5alpha-dihydrotestosterone-17beta-succinyldiaminoethyl-(1,4-butanediol diglycidyl ether)-agarose, and preparative polyacrylamide gel electrophor...

journal_title：Biochemistry

authors： Mickelson KE,Teller DC,Petra PH

更新日期：1978-04-18 00:00:00

abstract：:Phosphatidylcholine phospholipase C (EC 3.1.4.3) from Bacillus cereus has been assayed with substrates in the form of large unilamellar vesicles. Phosphatidylcholine, phosphatidylethanolamine (also a substrate for the enzyme), sphingomyelin, and cholesterol have been mixed in various proportions, in binary, ternary, a...

journal_title：Biochemistry

authors： Ruiz-Argüello MB,Goñi FM,Alonso A

更新日期：1998-08-18 00:00:00

abstract：:The physiological roles of immunophilins are unclear, but many possess peptidyl-prolyl isomerase (PPIase) activity, and they have been found in all organisms examined to date, implying that they are involved in fundamental, protein-folding processes. The chloroplast thylakoid lumen of the higher plant Arabidopsis thal...

journal_title：Biochemistry

authors： Edvardsson A,Shapiguzov A,Petersson UA,Schröder WP,Vener AV

更新日期：2007-08-21 00:00:00

abstract：:Escherichia coli dihydrofolate reductase contains five tryptophan residues that are spatially distributed throughout the protein and located in different secondary structural elements. When these tryptophans are replaced with [6-19F]tryptophan, distinct native and unfolded resonances can be resolved in the 1-D 19F NMR...

journal_title：Biochemistry

authors： Hoeltzli SD,Frieden C

更新日期：1998-01-06 00:00:00

abstract：:We have covalently attached an electron paramagnetic resonance (EPR) spin probe to Cys-670 of the motor domain of ncd (nonclaret disjunctional protein) in order to investigate conformational changes associated with the chemomechanical cycle. Spin-labeling is highly specific and does not affect ncd function as monitore...

journal_title：Biochemistry

authors： Naber N,Cooke R,Pate E

更新日期：1997-08-12 00:00:00

abstract：:Exchangeable imidazole NH proton nuclear magnetic resonance (NMR) signals of the proximal histidine F8, which is directly coordinated to the paramagnetic porphyrin cobalt ion, have been measured for cobalt-substituted deoxyhemoglobins (deoxy-CoHb) and iron-cobalt hybrid hemoglobins, alpha (Co)2 beta (Fe)2 and alpha (F...

journal_title：Biochemistry

authors： Inubushi T,Ikeda-Saito M,Yonetani T

更新日期：1983-06-07 00:00:00

abstract：:Chemical modification of mitochondrial F1-ATPase from Schizosaccharomyces pombe by the tryptophan-specific reagent N-bromosuccinimide (NBS) at pH 5.0 in the presence of 20% glycerol produced a characteristic lowering in both enzyme absorbance at 280 nm and intrinsic fluorescence at 332 nm that varied with NBS/F1 molar...

journal_title：Biochemistry

authors： Divita G,Jault JM,Gautheron DC,Di Pietro A

更新日期：1993-02-02 00:00:00

abstract：:Ubiquitin was modified with the anionic, arginine-specific reagent 4-(oxoacetyl)phenoxyacetic acid in order to study the relationship between structure and function of the molecule. Four different derivatives (A, B, C, and D) were purified from the reaction mixture by anion-exchange high-performance liquid chromatogra...

journal_title：Biochemistry

authors： Duerksen-Hughes PJ,Xu XX,Wilkinson KD

更新日期：1987-11-03 00:00:00

abstract：:In the native calcium-binding protein calbindin D9k (M(r) 8.700; 75aa; 2 EF-hands), the backbone carbonyl oxygen of Glu60 coordinates the Ca2+ ion in the C-terminal site (site II). The carboxylate group of the same residue forms a hydrogen bond to a water molecule that constitutes a Ca2+ ligand in the N-terminal site ...

journal_title：Biochemistry

authors： Linse S,Bylsma NR,Drakenberg T,Sellers P,Forsén S,Thulin E,Svensson LA,Zajtzeva I,Zajtsev V,Marek J

更新日期：1994-10-18 00:00:00

abstract：:When different mutations were introduced into the anticodon loop and at position 73 of YFA2, a derivative of yeast tRNA(Phe), a single tRNA body was misacylated with 13 different amino acids. The affinities of these misacylated tRNAs for Thermus thermophilus elongation factor Tu (EF-Tu).GTP were determined using a rib...

journal_title：Biochemistry

authors： Dale T,Sanderson LE,Uhlenbeck OC

更新日期：2004-05-25 00:00:00

abstract：:To determine the energetic and structural consequences of placing a charged group within the core of a protein, two "buried charge" mutants, Met 102----Lys (M102K) and Leu 133----Asp (L133D) were constructed in phage T4 lysozyme. Both proteins fold at neutral pH, although they are substantially less stable than wild t...

journal_title：Biochemistry

authors： Dao-pin S,Anderson DE,Baase WA,Dahlquist FW,Matthews BW

更新日期：1991-12-10 00:00:00

abstract：:The genomic and antigenomic RNAs of hepatitis delta virus are capable of self-cleavage and show no significant sequence similarities to other known self-cleaving RNAs. We have derived an antigenomic delta RNA which cleaves to completion in 15 s in 9 mM magnesium at 37 degrees C and is capable of efficient self-cleavag...

journal_title：Biochemistry

authors： Smith JB,Gottlieb PA,Dinter-Gottlieb G

更新日期：1992-10-13 00:00:00

abstract：:The kinetics of charge recombination following photoexcitation by a laser pulse have been analyzed in the reaction center-light harvesting complex 1 (RC-LH1) purified from the photosynthetic bacterium Rhodobacter sphaeroides. In RC-LH1 core complexes isolated from photosynthetically grown cells P(+)Q(B)(-) recombines ...

journal_title：Biochemistry

authors： Francia F,Dezi M,Rebecchi A,Mallardi A,Palazzo G,Melandri BA,Venturoli G

更新日期：2004-11-09 00:00:00

abstract：:Rat brain and kidney cDNA libraries were constructed and screened with a cDNA insert corresponding to the mRNA for the sheep kidney Na+,K+-ATPase catalytic subunit. The alpha-subunit cDNAs isolated from the kidney library were derived from a single class of messenger RNA, and the brain cDNAs were derived from three cl...

journal_title：Biochemistry

authors： Shull GE,Greeb J,Lingrel JB

更新日期：1986-12-16 00:00:00

abstract：:The positions of single amino acids in the interhelical loop regions and the C-terminal tail of bacteriorhodopsin (bR) were investigated by X-ray diffraction using site-directed heavy-atom labeling. Since wild-type bR does not contain any cysteines, appropriate cysteine mutants were produced with a unique sulfhydryl g...

journal_title：Biochemistry

authors： Behrens W,Alexiev U,Mollaaghababa R,Khorana HG,Heyn MP

更新日期：1998-07-21 00:00:00

abstract：:The oxidative stress products malondialdehyde and base propenal react with DNA bases forming the adduction products 3-(2'-deoxy-β-D-erythro-pentofuranosyl)pyrimido[1,2-a]purin-10(3H)-one (M1dG) and N(6)-(oxypropenyl)-2'-deoxyadenosine (OPdA). M1dG is mutagenic in vivo and miscodes in vitro, but little work has been do...

journal_title：Biochemistry

authors： Maddukuri L,Shuck SC,Eoff RL,Zhao L,Rizzo CJ,Guengerich FP,Marnett LJ

更新日期：2013-12-03 00:00:00

abstract：:Although the binding of various forms of bleomycin to DNA has been studied extensively, the transient nature of the activated bleomycin species which ultimately attacks DNA has largely precluded direct examination of its physical interactions with DNA. In an attempt to map the minimum binding site required for this sp...

journal_title：Biochemistry

authors： Suh D,Povirk LF

更新日期：1997-04-08 00:00:00

abstract：:Diethyl pyrocarbonate (DEP) is an electrophilic reagent that is used to modify reversibly the histidine residues of proteins. Unfortunately, the lability of the acylated histidine adduct usually does not permit the isolation and identification of the modified histidine. By use of 500-MHz proton NMR spectroscopy, it ha...

journal_title：Biochemistry

authors： Altman J,Lipka JJ,Kuntz I,Waskell L

更新日期：1989-09-19 00:00:00

abstract：:Two mutant versions of Escherichia coli aspartate transcarbamylase were created by site-specific mutagenesis. Arg-234 of the 240s loop was replaced by serine in order to help deduce the function of the interactions that normally occur between Arg-234 and both Glu-50 and Gln-231 in the R state of the enzyme. The other ...

journal_title：Biochemistry

authors： Middleton SA,Kantrowitz ER

更新日期：1988-11-15 00:00:00