Binding of calcium to anticoagulant protein S: role of the fourth EGF module.

abstract：:The P22 tailspike endorhamnosidase confers the high specificity of bacteriophage P22 for some serogroups of Salmonella differing only slightly in their O-antigen polysaccharide. We used several biophysical methods to study the binding and hydrolysis of O-antigen fragments of different lengths by P22 tailspike protein....

journal_title：Biochemistry

authors： Baxa U,Weintraub A,Seckler R

更新日期：2020-12-29 00:00:00

abstract：:A panel of 10 hybridomas was assembled to assess the influence of various genetic and biological factors upon glycosylation of secreted monoclonal IgG. After exhaustive Pronase digestion of IgG, glycopeptides were characterized chromatographically by apparent size, charge, and concanavalin A (Con A)-Sepharose and Lens...

journal_title：Biochemistry

authors： Rothman RJ,Warren L,Vliegenthart JF,Härd KJ

更新日期：1989-02-07 00:00:00

abstract：:The ubiquitous calcium-binding protein calmodulin (CaM) regulates a wide variety of cellular events by binding to and activating many distinct target enzymes. The CaM-binding domains of most of these enzymes are contained in a contiguous stretch of amino acids with a length of approximately 20 residues. In this work, ...

journal_title：Biochemistry

authors： Zhang M,Fabian H,Mantsch HH,Vogel HJ

更新日期：1994-09-13 00:00:00

abstract：:The structure of human epidermal growth factor (EGF, 53 amino acids) comprises three distinct loops (A, B, and C) connected correspondingly by the three native disulfide bonds, Cys(6)-Cys(20), Cys(14)-Cys(31), and Cys(33)-Cys(42). The connection of Cys(6) and Cys(20) forming the N-terminal A loop is essential for the ...

journal_title：Biochemistry

authors： Lu BY,Jiang C,Chang JY

更新日期：2005-11-15 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：:A soluble extract prepared from cells of an Escherichia coli strain carrying the antibiotic resistance plasmid R6K is capable of carrying out the complete process of R6K DNA replication. DNA synthesis in vitro is dependent on the four deoxyribo- and ribonucleotide triphosphates and is sensitive to rifampin and strepto...

journal_title：Biochemistry

authors： Inuzuka M,Helinski DR

更新日期：1978-06-27 00:00:00

abstract：:The understudied nonribosomal-peptide-synthetase-independent siderophore (NIS) synthetase family has been increasingly associated with virulence in bacterial species due to its key role in the synthesis of hydroxamate and carboxylate "stealth" siderophores. We have identified a model family member, DesD, from Streptom...

journal_title：Biochemistry

authors： Hoffmann KM,Goncuian ES,Karimi KL,Amendola CR,Mojab Y,Wood KM,Prussia GA,Nix J,Yamamoto M,Lathan K,Orion IW

更新日期：2020-09-22 00:00:00

abstract：:L-Aspartate oxidase (Laspo) catalyzes the conversion of L-Asp to iminoaspartate, the first step in the de novo biosynthesis of NAD(+). This bacterial pathway represents a potential drug target since it is absent in mammals. The Laspo R386L mutant was crystallized in the FAD-bound catalytically competent form and its t...

journal_title：Biochemistry

authors： Bossi RT,Negri A,Tedeschi G,Mattevi A

更新日期：2002-03-05 00:00:00

abstract：:Prokaryotic promoters have been extensively studied to relate sequence features to promoter function. Here we examine the relationship between double-helix stability and promoter activity. The double-helix stability is evaluated from sequence data by free energy computation, based on reported values of dinucleotide fr...

journal_title：Biochemistry

authors： Margalit H,Shapiro BA,Nussinov R,Owens J,Jernigan RL

更新日期：1988-07-12 00:00:00

abstract：:Ribonuclease P2 from the thermophilic archaebacterium Sulfolobus solfataricus is a small protein (7 kDa) with a known three-dimensional structure. Inspection of the structure and molecular dynamics simulation reveal that three aromatic residues (Phe5, Phe31, and Tyr33) from the hydrophobic core have a strong van der W...

journal_title：Biochemistry

authors： Mombelli E,Afshar M,Fusi P,Mariani M,Tortora P,Connelly JP,Lange R

更新日期：1997-07-22 00:00:00

abstract：:The cyclotides constitute a recently discovered family of plant-derived peptides that have the unusual features of a head-to-tail cyclized backbone and a cystine knot core. These features are thought to contribute to their exceptional stability, as qualitatively observed during experiments aimed at sequencing and char...

journal_title：Biochemistry

authors： Colgrave ML,Craik DJ

更新日期：2004-05-25 00:00:00

abstract：:KLHL-12 is a substrate specific adapter protein for a Cul3-Ring ligase complex. It is a member of the Kelch β-propeller domain subclass of Cullin-Ring substrate recognition domains. This E3 ubiquitin ligase complex has many activities, including acting as a negative regulator of the Wnt signaling pathway by mediating ...

journal_title：Biochemistry

authors： Zhao B,Payne WG,Sai J,Lu Z,Olejniczak ET,Fesik SW

更新日期：2020-03-03 00:00:00

abstract：:A simple and rapid procedure is described for purification of P-glycoprotein (Pgp) from a multidrug-resistant Chinese hamster ovary cell line (CR1R12) in which the plasma membranes are highly enriched in Pgp (Al-Shawi, M.K., Senior A.E. (1993) J. Biol. Chem, 268, 4197-4206). The procedure consisted of octylglucoside s...

journal_title：Biochemistry

authors： Urbatsch IL,al-Shawi MK,Senior AE

更新日期：1994-06-14 00:00:00

abstract：:Purification and potential tachykinin and enkephalin precursor cleaving enzymes from bovine chromaffin granules was undertaken using as substrates the model precursors 35S-(Met)-beta-preprotachykinin [35S-(Met)-beta-PPT] and 35S-(Met)-preproenkephalin [35S-(Met)-PPE]. Purification by concanavalin A-Sepharose, Sephacry...

journal_title：Biochemistry

authors： Krieger TJ,Hook VY

更新日期：1992-05-05 00:00:00

abstract：:The location of the sites of methylation of the methyl-accepting chemotaxis proteins (MCP) of Escherichia coli has been investigated by trypsin digestion and mapping of the peptides. The two principal MCPs, MCP I and MCP II, were found to have very similar methyl-labeled peptide patterns. Each produced three major spe...

journal_title：Biochemistry

authors： Chelsky D,Dahlquist FW

更新日期：1981-02-17 00:00:00

abstract：:Flash-induced Fourier transform infrared (FTIR) difference spectra for the four-step S-state cycle and the effects of global (15)N- and (13)C-isotope labeling on the difference spectra were examined for the first time in the mid- to low-frequency (1200-800 cm(-1)) as well as the mid-frequency (1700-1200 cm(-1)) region...

journal_title：Biochemistry

authors： Yamanari T,Kimura Y,Mizusawa N,Ishii A,Ono TA

更新日期：2004-06-15 00:00:00

abstract：:VanX, one of the five proteins required for the vancomycin-resistant phenotype in clinically pathogenic Enterococci, is a zinc-containing d-Ala-d-Ala dipeptidase. To identify potential zinc ligands and begin defining the active site residues, we have mutated the 2 cysteine, 5 histidine, and 4 of the 28 aspartate and g...

journal_title：Biochemistry

authors： McCafferty DG,Lessard IA,Walsh CT

更新日期：1997-08-26 00:00:00

abstract：:Transferrins have been extensively studied in order to understand how they reversibly bind and release iron. Human serum transferrin (hTF) is a single polypeptide chain that folds into two lobes (N- and C-lobe); each lobe binds a single ferric ion. Iron release induces a large conformational change in each lobe. At th...

journal_title：Biochemistry

authors： James NG,Berger CL,Byrne SL,Smith VC,MacGillivray RT,Mason AB

更新日期：2007-09-18 00:00:00

abstract：:The group-specific antigen was isolated from a type Ia group B streptococcal strain and is a complex polysaccharide composed of alpha-L-rhamnopyranosyl, alpha-D-galactopyranosyl, 2-acetamido-2-deoxy-beta-D-glucopyranosyl, D-glucitol, and phosphate residues. The complexity of the group B polysaccharide antigen is evide...

journal_title：Biochemistry

authors： Michon F,Katzenellenbogen E,Kasper DL,Jennings HJ

更新日期：1987-01-27 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：:Reporter gene transactivation by human p53 is inhibited in budding yeast lacking the TRR1 gene encoding thioredoxin reductase. To investigate the role of thioredoxin in controlling p53 activity, the level of reporter gene transactivation by p53 was determined in yeast lacking the TRX1 and TRX2 genes encoding cytosolic...

journal_title：Biochemistry

authors： Stoner CS,Pearson GD,Koç A,Merwin JR,Lopez NI,Merrill GF

更新日期：2009-09-29 00:00:00

abstract：:In an attempt to understand the multifunctional involvement of beta(2)-glycoprotein I (beta(2)GPI) in autoimmune diseases, thrombosis, atherosclerosis, and inflammatory processes, substantial interest is focused on the interaction of beta(2)GPI with negatively charged ligands, in particular, with acidic phospholipids....

journal_title：Biochemistry

authors： Hammel M,Schwarzenbacher R,Gries A,Kostner GM,Laggner P,Prassl R

更新日期：2001-11-27 00:00:00

abstract：:Protein-protein interactions such as those between small G proteins and their effector proteins control most cell signaling pathways and thereby govern many cellular processes in both normal and disease states. Each small G protein interacts with several effectors, some shared between similar G proteins and others uni...

journal_title：Biochemistry

authors： Elliot-Smith AE,Owen D,Mott HR,Lowe PN

更新日期：2007-12-11 00:00:00

abstract：:4-Azido-2-nitrophenyl phosphate (ANPP) was synthesized and characterized. ANPP, unlabeled or labeled by 32P, was used as a photoreactive analogue of Pi to study the Pi binding site(s) in isolated F1-ATPase and inside-out particles from beef heart mitochondria. In the dark, the phosphate bond of ANPP was cleaved by alk...

journal_title：Biochemistry

authors： Lauquin G,Pougeois R,Vignais PV

更新日期：1980-09-30 00:00:00

abstract：:The presence of high titers of anti-cardiolipin antibodies (ACA's) of autoimmune origin, which are known to bind to plasma beta2-glycoprotein I (aka apolipoprotein H), correlates clinically with autoimmune recurrent thrombosis. Soluble beta2-glycoprotein I binds to solid-phase ACA (immobilized on a surface plasmon res...

journal_title：Biochemistry

authors： Sem DS,Baker BL,Victoria EJ,Jones DS,Marquis D,Yu L,Parks J,Coutts SM

更新日期：1998-11-17 00:00:00

abstract：:The cAMP-dependent protein kinase (PKA) controls a large number of cellular functions. One critical PKA substrate in the brain and heart is the L-type Ca(2+) channel Ca(v)1.2, the activity of which is upregulated by PKA. The main PKA phosphorylation site is serine 1928 in the central pore forming alpha(1)1.2 subunit o...

journal_title：Biochemistry

authors： Hall DD,Feekes JA,Arachchige Don AS,Shi M,Hamid J,Chen L,Strack S,Zamponi GW,Horne MC,Hell JW

更新日期：2006-03-14 00:00:00

abstract：:Aminoacylation of a transfer RNA (tRNA) by its cognate aminoacyl-tRNA synthetase relies upon the recognition of specific nucleotides as well as conformational features within the tRNA by the synthetase. In Escherichia coli, the aminoacylation of tRNA(His) by histidyl-tRNA synthetase (HisRS) is highly dependent upon th...

journal_title：Biochemistry

authors： Connolly SA,Rosen AE,Musier-Forsyth K,Francklyn CS

更新日期：2004-02-03 00:00:00

abstract：:The X-ray structures of neuronal nitric oxide synthase (nNOS) with N(omega)-hydroxy-l-arginine (l-NHA) and CO (or NO) bound have been determined at 1.91-2.2 A resolution. Microspectrophotometric techniques confirmed reduced redox state and the status of diatomic ligand complexes during X-ray diffraction data collectio...

journal_title：Biochemistry

authors： Doukov T,Li H,Soltis M,Poulos TL

更新日期：2009-11-03 00:00:00

abstract：:Extended illumination slows the rebinding of CO to myoglobin after photodissociation at cryogenic temperatures. Two types of models have been put forward to explain the effect: motions of the CO within the heme pocket or conformational transitions of the protein. To resolve this ambiguity, we have studied the effect o...

journal_title：Biochemistry

authors： Nienhaus GU,Mourant JR,Chu K,Frauenfelder H

更新日期：1994-11-15 00:00:00

abstract：:The diffusion of protons at the immediate vicinity of (less than 10 A from) a phospholipid membrane is studied by the application of the laser-induced proton pulse. A light-sensitive proton emitter (8-hydroxypyrene-1,3,6-trisulfonate) was trapped exclusively in the hydration layers of multilamellar vesicles made of eg...

journal_title：Biochemistry

authors： Gutman M,Nachliel E,Moshiach S

更新日期：1989-04-04 00:00:00