Do the structures of big ET-1 and big ET-3 adopt a similar overall fold? Consequences for endothelin converting enzyme specificity.

abstract：:A variety of chronic inflammatory conditions are associated with an increased risk for the development of cancer. Because of the numerous links between DNA oxidative damage and carcinogenesis, a potential role for leukocyte-generated oxidants in these processes has been suggested. In the present study, we demonstrate ...

journal_title：Biochemistry

authors： Shen Z,Wu W,Hazen SL

更新日期：2000-05-09 00:00:00

abstract：:The incorporation of extensively fluorinated, or fluorous, analogues of hydrophobic amino acids into proteins potentially provides the opportunity to modulate the physicochemical properties of proteins in a predictable manner. On the basis of the properties of small fluorocarbon molecules, extensively fluorinated prot...

journal_title：Biochemistry

authors： Buer BC,de la Salud-Bea R,Al Hashimi HM,Marsh EN

更新日期：2009-11-17 00:00:00

abstract：:Messenger RNA degradation is an important component of overall gene expression. During the final step of eukaryotic mRNA degradation, exoribonuclease 1 (Xrn1) carries out 5' → 3' processive, hydrolytic degradation of RNA molecules using divalent metal ion catalysis. To initiate studies of the 5' → 3' RNA decay machine...

journal_title：Biochemistry

authors： Langeberg CJ,Welch WRW,McGuire JV,Ashby A,Jackson AD,Chapman EG

更新日期：2020-04-21 00:00:00

abstract：:Triplex-forming oligonucleotides (TFOs) have been shown to bind in a sequence-specific manner to polypurine/polypyrimidine sequences in several human gene promoters, including the c-myc P1 promoter. TFOs have been shown to inhibit transcription in vitro and the expression of target genes in cell culture. The human c-m...

journal_title：Biochemistry

authors： Kim HG,Miller DM

更新日期：1995-06-27 00:00:00

abstract：:Using heteronuclear NMR spectroscopy, we demonstrate that a 13-residue peptide (MS-QIKRLLSEKKT) from the cytoplasmic tail of CD4 binds to Nef protein. This part of CD4 is critical for downregulation of CD4 by HIV-1 Nef [Aiken et al. (1994) Cell 76, 853-864]. We show that a control peptide without the central dileucine...

journal_title：Biochemistry

authors： Grzesiek S,Stahl SJ,Wingfield PT,Bax A

更新日期：1996-08-13 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：:Eicosanoids have been implicated in the regulation of arterial smooth muscle cell (SMC) cholesteryl ester (CE) metabolism. These eicosanoids, which include prostacyclin (PGI2), stimulate CE hydrolytic activities. High-density lipoproteins (HDL), which promote cholesterol efflux, also stimulate PGI2 production, suggest...

journal_title：Biochemistry

authors： Pomerantz KB,Hajjar DP

更新日期：1990-02-20 00:00:00

abstract：:Photoactive yellow proteins (PYPs) make up a diverse class of blue-light-absorbing bacterial photoreceptors. Electronic excitation of the p-coumaric acid chromophore covalently bound within PYP results in triphasic quenching kinetics; however, the molecular basis of this behavior remains unresolved. Here we explore th...

journal_title：Biochemistry

authors： Mix LT,Carroll EC,Morozov D,Pan J,Gordon WR,Philip A,Fuzell J,Kumauchi M,van Stokkum I,Groenhof G,Hoff WD,Larsen DS

更新日期：2018-03-20 00:00:00

abstract：:The 1,2-diacyl-sn-glycerols (1,2-DGs) are the predominant naturally occurring isomer found in cell membranes, lipid droplets, and lipoproteins. They are involved in the metabolism of monoacylglycerols, triacylglycerols, and phospholipids. The 1,2-DGs participate in the activation of protein kinase C, in phosphorylatio...

journal_title：Biochemistry

authors： Kodali DR,Fahey DA,Small DM

更新日期：1990-12-04 00:00:00

abstract：:Heparan sulfate (HS) proteoglycans (PGs) interact with a number of extracellular signaling proteins, thereby playing an essential role in the regulation of many physiological processes. These interactions are important for both normal signal transduction and regulation of the tissue distribution of signaling molecules...

journal_title：Biochemistry

authors： Zhang F,McLellan JS,Ayala AM,Leahy DJ,Linhardt RJ

更新日期：2007-04-03 00:00:00

abstract：:The respiratory nitric oxide reductase (NOR) from Paracoccus denitrificans catalyzes the two-electron reduction of NO to N(2)O (2NO + 2H(+) + 2e(-) --> N(2)O + H(2)O), which is an obligatory step in the sequential reduction of nitrate to dinitrogen known as denitrification. NOR has four redox-active cofactors, namely,...

journal_title：Biochemistry

authors： Flock U,Watmough NJ,Adelroth P

更新日期：2005-08-09 00:00:00

abstract：:During T cell signaling, Itk selectively phosphorylates a tyrosine within its own SH3 domain and a tyrosine within PLCgamma1. We find that the remote SH2 domain in each of these substrates is required to achieve efficient tyrosine phosphorylation by Itk and extend this observation to two other Tec family kinases, Btk ...

journal_title：Biochemistry

authors： Joseph RE,Min L,Xu R,Musselman ED,Andreotti AH

更新日期：2007-05-08 00:00:00

abstract：:To generate an effective immune response, class II major histocompatibility complex molecules (MHCII) must present a diverse array of peptide ligands for recognition by T lymphocytes. Peptide/MHCII complexes are stabilized by hydrophobic anchoring of peptide side chains to pockets in the MHCII protein and the formatio...

journal_title：Biochemistry

authors： Anderson MW,Gorski J

更新日期：2005-04-19 00:00:00

abstract：:The binding of the R17 coat protein to synthetic RNAs containing one or two coat protein binding sites was characterized by using nitrocellulose filter and gel-retention assays. RNAs with two available sites bound coat protein in a cooperative manner, resulting in a higher affinity and reduced sensitivity to pH, ionic...

journal_title：Biochemistry

authors： Witherell GW,Wu HN,Uhlenbeck OC

更新日期：1990-12-18 00:00:00

abstract：:Intrastrand cross-links represent the majority of modifications in DNA resulting from interaction with the cancer chemotherapeutic drug cis-diamminedichloroplatinum(II) (cis-DDP). These adducts were recently characterized although several discrepancies remained to be resolved. In these studies, [3H]-cis-dichloro(ethyl...

journal_title：Biochemistry

authors： Eastman A

更新日期：1986-07-01 00:00:00

abstract：:The purpose of this study was to investigate the molecular action of lithocholic acid (LCA), known as a selective inhibitor of DNA polymerase beta (pol beta). The 39-kDa pol beta was separated proteolytically into two fragments of the template-primer binding domain (8 kDa) and the catalytic domain (31 kDa). LCA bound ...

journal_title：Biochemistry

authors： Mizushina Y,Ohkubo T,Sugawara F,Sakaguchi K

更新日期：2000-10-17 00:00:00

abstract：:Upon blue light irradiation, photoactive yellow protein (PYP) undergoes a conformational change that involves large movements at the N-terminus of the protein. We reasoned that this conformational change might be used to control other protein or peptide sequences if these were introduced as linkers connecting the N- a...

journal_title：Biochemistry

authors： Kumar A,Burns DC,Al-Abdul-Wahid MS,Woolley GA

更新日期：2013-05-14 00:00:00

abstract：:We have studied the pathway and kinetics of refolding of recombinant human brain-derived neurotrophic factor (BDNF), which is a very tightly-associated dimer in its native state. When BDNF unfolded in 6 M guanidine hydrochloride is diluted 20-fold into phosphate-buffered saline, a partially folded intermediate is rapi...

journal_title：Biochemistry

authors： Philo JS,Rosenfeld R,Arakawa T,Wen J,Narhi LO

更新日期：1993-10-12 00:00:00

abstract：:Pseudokinases play important roles in signal transduction and cellular processes similar to those of catalytically competent kinases. However, pseudokinase pharmacological tractability and conformational space accessibility are poorly understood. Pseudokinases have only recently been suggested to adopt "inactive" conf...

journal_title：Biochemistry

authors： Smith RHB,Khan ZM,Ung PM,Scopton AP,Silber L,Mack SM,Real AM,Schlessinger A,Dar AC

更新日期：2021-01-13 00:00:00

abstract：:The primary photochemical event of photoactive yellow protein (PYP) was studied by laser flash photolysis experiments on a subpicosecond-nanosecond time scale. PYP was excited by a 390-nm pulse, and the transient difference absorption spectra were recorded by a multichannel spectrometer for a more reliable spectral an...

journal_title：Biochemistry

authors： Imamoto Y,Kataoka M,Tokunaga F,Asahi T,Masuhara H

更新日期：2001-05-22 00:00:00

abstract：:A slow conversion of adenine residues to hypoxanthine occurs in single-stranded DNA when heated in neutral aqueous buffers. The rate of this reaction at pH 7.6 and 110 degrees C is k = 4 x 10(-8) s-1, as determined by base analysis of heat-treated DNA that contains radioactively labeled adenine residues. It is propose...

journal_title：Biochemistry

authors： Karran P,Lindahl T

更新日期：1980-12-23 00:00:00

abstract：:The purified ATP-synthesizing complex from chloroplasts has been reconstituted into phospholipid vesicles with bacteriorhodopsin by use of octyl glucoside. Phosphorylation rates up to 90 mmol of ATP (mg of protein)-1 min-1 have been achieved. The dependence of the steady-state kinetic parameters on external and intern...

journal_title：Biochemistry

authors： Takabe T,Hammes GG

更新日期：1981-11-24 00:00:00

abstract：:The kringle 2 (K2) module of human plasminogen (Pgn) binds L-lysine and analogous zwitterionic compounds, such as the antifibronolytic agent trans-(aminomethyl)cyclohexanecarboxylic acid (AMCHA). Far-UV CD and NMR spectra reveal little conformational change in K2 upon ligand binding. However, retarded (1)H-(2)H isotop...

journal_title：Biochemistry

authors： Marti DN,Schaller J,Llinás M

更新日期：1999-11-30 00:00:00

abstract：:Haemadin is a 57-amino acid thrombin inhibitor from the land-living leech Haemadipsa sylvestris, whose structure has recently been determined in complex with human alpha-thrombin. Here we communicate the effect of ionic strength on the kinetics of the inhibition of human alpha-thrombin by haemadin, by using thrombin m...

journal_title：Biochemistry

authors： Richardson JL,Fuentes-Prior P,Sadler JE,Huber R,Bode W

更新日期：2002-02-26 00:00:00

abstract：:The relationship between GTP hydrolysis and microtubule assembly has been investigated by using a rapid filtration method. Microtubules assembled from phosphocellulose-purified tubulin, double-labeled with [gamma-32P]- and [3H]GTP, were trapped and washed free of unbound nucleotide on glass fiber filters. The transien...

journal_title：Biochemistry

authors： Stewart RJ,Farrell KW,Wilson L

更新日期：1990-07-10 00:00:00

abstract：:Thromboxane A(2) receptor (TP receptor), a prostanoid receptor, belongs to the G protein-coupled receptor family, composed of three intracellular loops and three extracellular loops connecting seven transmembrane helices. The highly conserved extracellular domains of the prostanoid receptors were found in the second e...

journal_title：Biochemistry

authors： Ruan KH,So SP,Wu J,Li D,Huang A,Kung J

更新日期：2001-01-09 00:00:00

abstract：:Polycyclic aromatic hydrocarbon (PAH)-DNA adducts pervert the execution or fidelity of enzymatic DNA transactions and cause mutations and cancer. Here, we examine the effects of intercalating PAH-DNA adducts on the religation reaction of vaccinia DNA topoisomerase, a prototypal type IB topoisomerase (TopIB), and the 3...

journal_title：Biochemistry

authors： Yakovleva L,Handy CJ,Yagi H,Sayer JM,Jerina DM,Shuman S

更新日期：2006-06-20 00:00:00

abstract：:Telomerase is a ribonucleoprotein that participates in the maintenance of telomere length. Its activity is up-regulated in many tumor types, suggesting that it may be a novel target for chemotherapy. The RNA component of telomerase contains an active site that plays at least two roles&sbd;binding telomere ends and tem...

journal_title：Biochemistry

authors： Hamilton SE,Pitts AE,Katipally RR,Jia X,Rutter JP,Davies BA,Shay JW,Wright WE,Corey DR

更新日期：1997-09-30 00:00:00

abstract：:The deposition of fibrils and amorphous aggregates of transthyretin (TTR) in patient tissues is a hallmark of TTR amyloid disease, but the molecular details of amyloidogenesis are poorly understood. Tetramer dissociation is typically rate-limiting for TTR amyloid fibril formation, so we have used a monomeric variant o...

journal_title：Biochemistry

authors： Hurshman AR,White JT,Powers ET,Kelly JW

更新日期：2004-06-15 00:00:00

abstract：:The binding of 8-anilino-1-naphthalenesulfonate (ANS) to ciliary dynein ATPase leads to a marked increase in the dye's fluorescence intensity, accompanied by a blue shift in the observed fluorescence emission maximum. We found that dynein has 37 +/- 3 ANS binding sites and that experimentally applied ANS concentration...

journal_title：Biochemistry

authors： Saucier AC,Mariotti S,Anderson SA,Purich DL

更新日期：1985-12-17 00:00:00