Reduced temperature dependence of collective conformational opening in a hyperthermophile rubredoxin.

abstract：:We have developed a simple method for reconstituting pure, integral membrane proteins into phospholipid-protein vesicles. The method does not depend on use of detergents or sonication. It has been used successfully with three different types of integral membrane proteins: UDPglucuronosyltransferase (EC 2.4.1.17) from ...

journal_title：Biochemistry

authors： Scotto AW,Zakim D

更新日期：1985-07-16 00:00:00

abstract：:Adeno-associated virus (AAV) nonstructural proteins Rep78 and Rep68 carry out all DNA transactions that regulate the AAV life cycle. They share two multifunctional domains: an N-terminal origin binding/nicking domain (OBD) from the HUH superfamily and a SF3 helicase domain. A short linker of ∼20 amino acids that is cr...

journal_title：Biochemistry

authors： Musayev FN,Zarate-Perez F,Bardelli M,Bishop C,Saniev EF,Linden RM,Henckaerts E,Escalante CR

更新日期：2015-09-29 00:00:00

abstract：:Stopped-flow fluorescence experiments have been carried out to study the steady-state kinetics of hydrolysis of Leu-Gly-NHNH-Dns [Dns = 5-(dimethylamino)naphthalene-1-sulfonyl] by porcine kidney cytosol leucine aminopeptidase (LAP) in 50% v/v methanol/buffer solution at ambient temperature and the pre-steady-state kin...

journal_title：Biochemistry

authors： Lin WY,Lin SH,Morris RJ,Van Wart HE

更新日期：1988-07-12 00:00:00

abstract：:1,4-Dihydroxy-2-naphthoyl-coenzyme A (DHNA-CoA) synthase, or MenB, catalyzes an intramolecular Claisen condensation involving two oxyanion intermediates in the biosynthetic pathway of menaquinone, an essential respiration electron transporter in many microorganisms. Here we report the finding that the DHNA-CoA product...

journal_title：Biochemistry

authors： Chen M,Jiang M,Sun Y,Guo ZF,Guo Z

更新日期：2011-07-05 00:00:00

abstract：:Large conductance Ca(2+)-activated K(+) channels (BK(Ca)) contain an intracellular binding site for bovine pancreatic trypsin inhibitor (BPTI), a well-known inhibitor of various serine proteinase (SerP) enzymes. To investigate the structural basis of this interaction, we examined the activity of 11 BPTI mutants using ...

journal_title：Biochemistry

authors： Favre I,Moss GW,Goldenberg DP,Otlewski J,Moczydlowski E

更新日期：2000-02-29 00:00:00

abstract：:The interaction of fluorescent ATP analog 2'(3')-O-[N-[2-[3-(5-fluoresceinyl)thioureido]-ethyl]carbamoyl]adenosine 5'-triphosphate (FEDA-ATP) with rabbit skeletal myosin subfragment 1 (S1) and acto-S1 was studied. This and related ATP analogs are potentially useful for determination of the ATPase activity of single my...

journal_title：Biochemistry

authors： Conibear PB,Jeffreys DS,Seehra CK,Eaton RJ,Bagshaw CR

更新日期：1996-02-20 00:00:00

abstract：:Oxygenic photosynthesis in plants involves highly reactive intermediates and byproducts that can damage the photosynthetic apparatus and other chloroplast constituents. The potential for damage is exacerbated when the amount of absorbed light exceeds the capacity for light energy utilization in photosynthesis, a condi...

journal_title：Biochemistry

authors： Holt NE,Fleming GR,Niyogi KK

更新日期：2004-07-06 00:00:00

abstract：:The nitrile stretching vibration is increasingly used as a sensitive infrared probe of local protein environments. However, site-specific incorporation of a nitrile moiety into proteins is difficult. Here we show that various aromatic nitriles can be easily incorporated into peptides and proteins via either thiol alky...

journal_title：Biochemistry

authors： Jo H,Culik RM,Korendovych IV,Degrado WF,Gai F

更新日期：2010-12-14 00:00:00

abstract：:The solution structure of the dicerium(III) complex of the N-terminal domain of calmodulin (Ce2-TR1C hereafter) has been solved employing paramagnetic T1 relaxation enhancements and pseudocontact shifts introduced by the Ce3+ ions, together with conventional NOE constraints. The use of pseudocontact shift constraints ...

journal_title：Biochemistry

authors： Bentrop D,Bertini I,Cremonini MA,Forsén S,Luchinat C,Malmendal A

更新日期：1997-09-30 00:00:00

abstract：:A heterologous expression system was used to evaluate activation of BlaR1, a sensor/signal transducer protein of Staphylococcus aureus with a central role in resistance to β-lactam antibiotics. In the absence of other S. aureus proteins that might respond to antibiotics and participate in signal transduction events, w...

journal_title：Biochemistry

authors： Llarrull LI,Mobashery S

更新日期：2012-06-12 00:00:00

abstract：:The temperature dependence of the reduction potential of the CuA site in carbon monoxide inhibited cytochrome c oxidase has been measured with a spectroelectrochemical method adapted to the relatively weak near-infrared absorption of this copper ion. These measurements, together with parallel measurements on the 604-n...

journal_title：Biochemistry

authors： Wang H,Blair DF,Ellis WR Jr,Gray HB,Chan SI

更新日期：1986-01-14 00:00:00

abstract：:Thymidylate synthase from phage T4 (T4TS) is part of a complex of several enzymes required for coordinate DNA synthesis in infected Escherichia coli cells. It has been proposed that similar complexes of enzymes related to DNA synthesis are also functional in eukaryotes [Pardee, A. B. (1989) Science 246, 603-608]. To d...

journal_title：Biochemistry

authors： Finer-Moore JS,Maley GF,Maley F,Montfort WR,Stroud RM

更新日期：1994-12-27 00:00:00

abstract：:Asymmetrically modified hemoglobins, [alpha(des-Arg)beta]A[alpha beta]cXL, [alpha(des-Arg-Tyr)beta]A[alpha beta]cXL, [alpha(des-Arg)beta(NES)]A[alpha beta]cXL, and [alpha(des-Arg)beta]A[alpha beta(NES)]cXL, have been prepared from chemically modified human normal adult hemoglobin (Hb A) and mutant hemoglobin C (beta 6...

journal_title：Biochemistry

authors： Miura S,Ho C

更新日期：1984-05-22 00:00:00

abstract：:[125I]Calmodulin binding to isolated rat adipocyte plasma membranes has been characterized, and the calmodulin binding proteins associated with the membrane have been identified by use of the photoaffinity cross-linker N-hydroxysuccinimidyl 4-azidobenzoate. Total binding of [125I]calmodulin to plasma membranes was ass...

journal_title：Biochemistry

authors： Goewert RR,Landt M,McDonald JM

更新日期：1982-10-12 00:00:00

abstract：:The tertiary structure of alpha1-acid glycoprotein (AGP) remains unresolved despite its novel function because AGP is a hard target in X-ray and NMR analyses. To elucidate the membrane-induced conformational change of AGP, the vacuum-ultraviolet circular dichroism (VUVCD) spectra of AGP and its constituent sugars were...

journal_title：Biochemistry

authors： Matsuo K,Namatame H,Taniguchi M,Gekko K

更新日期：2009-09-29 00:00:00

abstract：:The nontransformed steroid receptors contain several non-steroid binding proteins, such as hsp90, hsp70, and p59. Recently, we and others have shown that p59 (FKBP59) is an immunophilin which binds two potent immunosuppressants, FK506 and rapamycin. This raises the possibility that FK506 or rapamycin may modify the fu...

journal_title：Biochemistry

authors： Tai PK,Albers MW,McDonnell DP,Chang H,Schreiber SL,Faber LE

更新日期：1994-09-06 00:00:00

abstract：:alpha 1-Adrenergic receptor probes, which can be radioiodinated to yield high specific activity radioligands, have been synthesized and characterized. 2-[4-(4-Amino-benzoyl)piperazin-1-yl]-4-amino-6,7-dimethoxyquin azoline (CP63,155), an arylamine analogue of the selective alpha 1-adrenergic antagonist prazosin, and i...

journal_title：Biochemistry

authors： Seidman CE,Hess HJ,Homcy CJ,Graham RM

更新日期：1984-07-31 00:00:00

abstract：:Distance constraints from two-dimensional NMR cross-relaxation data are used to derive a three-dimensional structure for acyl carrier protein from Escherichia coli. Several approaches to structure determination are explored. The most successful proves to be an approach that combines the early stages of a distance geom...

journal_title：Biochemistry

authors： Holak TA,Kearsley SK,Kim Y,Prestegard JH

更新日期：1988-08-09 00:00:00

abstract：:Thermal transitions of type I collagen fibrils were investigated by differential scanning calorimetry and spectrophotometry of turbidity within a wide range of external conditions. The advanced microcalorimeter allowed us to carry out the measurements at low concentrations of collagen (0.15-0.3 mg/mL). At these concen...

journal_title：Biochemistry

authors： Tiktopulo EI,Kajava AV

更新日期：1998-06-02 00:00:00

abstract：:To characterize the roles played by Glu44 and Glu56 of cytochrome b5 in the formation of the electrostatic complex between cytochrome c and cytochrome b5, the Glu44, Glu56, or both sites were changed to alanine by site-directed mutagenesis. The influence of these two residues on the protein stability was probed by inv...

journal_title：Biochemistry

authors： Qian W,Sun YL,Wang YH,Zhuang JH,Xie Y,Huang ZX

更新日期：1998-10-06 00:00:00

abstract：:Tafazzin is the mitochondrial enzyme that catalyzes transacylation between a phospholipid and a lysophospholipid in remodeling. Mutations in tafazzin cause Barth syndrome, a potentially life-threatening disease with the major symptom being cardiomyopathy. In the tafazzin-deficient heart, cardiolipin (CL) acyl chains b...

journal_title：Biochemistry

authors： Kimura T,Kimura AK,Ren M,Berno B,Xu Y,Schlame M,Epand RM

更新日期：2018-04-10 00:00:00

abstract：:The solution structure and dynamics of human insulin are investigated by 2D 1H NMR spectroscopy in reference to a previously analyzed analogue, des-pentapeptide(B26-B30) insulin (DPI; Hua, Q.X., & Weiss, M.A. (1990) Biochemistry 29, 10545-10555). This spectroscopic comparison is of interest since (i) the structure of ...

journal_title：Biochemistry

authors： Hua QX,Weiss MA

更新日期：1991-06-04 00:00:00

abstract：:A crystal structure of human fibrinogen has been determined at approximately 3.3 A resolution. The protein was purified from human blood plasma, first by a cold ethanol precipitation procedure and then by stepwise chromatography on DEAE-cellulose. A product was obtained that was homogeneous on SDS-polyacrylamide gels....

journal_title：Biochemistry

authors： Kollman JM,Pandi L,Sawaya MR,Riley M,Doolittle RF

更新日期：2009-05-12 00:00:00

abstract：:This research was undertaken to distinguish between local and global unfolding in the reversible thermal denaturation of bovine pancreatic ribonclease A (RNase A). Local unfolding was monitored by steady-state and time-resolved fluorescence of nine mutants in each of which a single tryptophan was substituted for a wil...

journal_title：Biochemistry

authors： Navon A,Ittah V,Laity JH,Scheraga HA,Haas E,Gussakovsky EE

更新日期：2001-01-09 00:00:00

abstract：:The removal of damaged bases by DNA glycosylases is thought to be effectively irreversible, because of an overall equilibrium that favors hydrolysis over synthesis of the N-glycosyl bond. Surprisingly, human alkyladenine DNA glycosylase (AAG) can make damaged DNA by catalyzing formation of an N-glycosyl bond between 1...

journal_title：Biochemistry

authors： Admiraal SJ,O'Brien PJ

更新日期：2010-10-26 00:00:00

abstract：:The electric organ of the ray, Torpedo ocellata, can serve as a source for both the acetylcholine (ACh) receptor and its ionic channel. The two entities were identified by their specific binding of [3H]ACh and [3H]perhydrohistrionicotoxin ([3H]H12-HTX), respectively. Binding of [3H]H12-HTX was inhibited by certain dru...

journal_title：Biochemistry

authors： Eldefrawi ME,Eldefrawi AT,Mansour NA,Daly JW,Witkop B,Albuquerque EX

更新日期：1978-12-12 00:00:00

abstract：:The reaction between chymotrypsin and N-acetyl-L-phenylalanine p-nitroanilide has been studied at subzero temperatures in fluid aqueous dimethyl sulfoxide solvent. Following initiation of the reaction at temperatures as low as -90 degrees C, a series of four reactions prior to the normal rate-limiting step (acylation)...

journal_title：Biochemistry

authors： Fink AL

更新日期：1976-04-06 00:00:00

abstract：:Treatment of the beta 2 adrenergic receptor with the reducing agent dithiothreitol (DTT) is known to abolish ligand binding to the receptor. Interestingly, the loss of binding can be prevented by preoccupation of the receptor with ligand. It is unclear, however, whether the ligand blocks access of DTT to the receptor,...

journal_title：Biochemistry

authors： Lin S,Gether U,Kobilka BK

更新日期：1996-11-19 00:00:00

abstract：:SHP (short heterodimer partner) is an orphan nuclear receptor, first described for its interaction with nuclear receptors. This study explores a new way of inhibiting the androgen-signaling pathway. We demonstrated that SHP inhibited up to 97% of AR-induced activity. Characterization of AR/SHP interaction provided evi...

journal_title：Biochemistry

authors： Gobinet J,Auzou G,Nicolas JC,Sultan C,Jalaguier S

更新日期：2001-12-18 00:00:00

abstract：:Pseudomonas aeruginosa PA4872 was identified by sequence analysis as a structurally and functionally novel member of the PEP mutase/isocitrate lyase superfamily and therefore targeted for investigation. Substrate screens ruled out overlap with known catalytic functions of superfamily members. The crystal structure of ...

journal_title：Biochemistry

authors： Narayanan BC,Niu W,Han Y,Zou J,Mariano PS,Dunaway-Mariano D,Herzberg O

更新日期：2008-01-08 00:00:00