abstract：:To understand the molecular basis of the thermostability of a thermophilic serine protease aqualysin I from Thermus aquaticus YT-1, we introduced mutations at Pro5, Pro7, Pro240 and Pro268, which are located on the surface loops of aqualysin I, by changing these amino acid residues into those found at the correspondin...

journal_title：Journal of biochemistry

authors： Sakaguchi M,Matsuzaki M,Niimiya K,Seino J,Sugahara Y,Kawakita M

更新日期：2007-02-01 00:00:00

abstract：:Here we report the enzymatic and ligand-binding properties of a major secretory protein in the choroid plexus of cane toad, Bufo marinus, whose protein is homologous with lipocalin-type prostaglandin (PG) D synthase (L-PGDS) and is recombinantly expressed in Xenopus A6 cells and Escherichia coli. The toad protein boun...

journal_title：Journal of biochemistry

authors： Irikura D,Inui T,Beuckmann CT,Aritake K,Schreiber G,Miyano M,Inoue T,Urade Y

更新日期：2007-02-01 00:00:00

abstract：:The modes of actions of 1-farnesylpyridinium (FPy) on yeast cell growth were investigated on the basis of its effects on cell cycle progression, morphogenesis and the related events for construction of cell wall architecture in Schizosacchromyces pombe. FPy predominantly inhibited the growth of the yeast cells after v...

journal_title：Journal of biochemistry

authors： Hamada M,Ohata I,Fujita K,Usuki Y,Ogita A,Ishiguro J,Tanaka T

更新日期：2006-12-01 00:00:00

abstract：:Rho-kinase is a main player in the regulation of cytoskeletal events and a promising drug target in the treatment of both vascular and neurological disorders. Here we report the crystal structure of the Rho-kinase catalytic domain in complex with the specific inhibitor Y-27632. Comparison with the structure of PKA bou...

journal_title：Journal of biochemistry

authors： Yamaguchi H,Miwa Y,Kasa M,Kitano K,Amano M,Kaibuchi K,Hakoshima T

更新日期：2006-09-01 00:00:00

abstract：:A cyclodextrin glucanotransferase (CGTase) from Bacillus clarkii 7364 converts starch into gamma-cyclodextrin (gamma-CD) with high specificity. Comparison of the deduced amino acid sequence of this CGTase with those of other typical CGTases revealed that several amino acids are deleted or substituted with others at se...

journal_title：Journal of biochemistry

authors： Nakagawa Y,Takada M,Ogawa K,Hatada Y,Horikoshi K

更新日期：2006-09-01 00:00:00

abstract：:L-selectin is a cell adhesion molecule mediating the initial capture and subsequent rolling of leukocytes along the endothelial cells expressing L-selectin ligands. In addition to its action in adhesion, an intracellular signaling role for L-selectin has been recognized. Its cytoplasmic domain is involved in signal tr...

journal_title：Journal of biochemistry

authors： Chen C,Ba X,Xu T,Cui L,Hao S,Zeng X

更新日期：2006-08-01 00:00:00

abstract：:Of the five HSV1 immediate-early proteins, infected-cell protein 22 (ICP22), the product of the Us1 gene, is a member whose function is less understood. In order to promote better understanding of the role of ICP22 in viral replication, mutation and fluorescence techniques were used to investigate the biochemical rela...

journal_title：Journal of biochemistry

authors： Cun W,Hong M,Liu LD,Dong CH,Luo J,Li QH

更新日期：2006-07-01 00:00:00

abstract：:Mutations of epsilon-sarcoglycan gene (SGCE) have been implicated in myoclonus-dystonia (M-D), a movement disorder. To determine the pathophysiology of M-D, we produced Sgce knockout mice and found that the knockout mice exhibited myoclonus, motor impairments, hyperactivity, anxiety, depression, significantly higher l...

journal_title：Journal of biochemistry

authors： Yokoi F,Dang MT,Li J,Li Y

更新日期：2006-07-01 00:00:00

abstract：:Bacillus licheniformis alpha-amylase (BLA) is widely used in various procedures of starch degradation in the food industry, and a BLA species with improved activity at higher temperature and under acidic conditions is desirable. Two BLA species, designated as PA and MA, have been isolated from the wild-type B. licheni...

journal_title：Journal of biochemistry

authors： Lee S,Oneda H,Minoda M,Tanaka A,Inouye K

更新日期：2006-06-01 00:00:00

abstract：:A fluorescent photoreactive ATP derivative, 2'(3')-O-(4-benzoylbenzoyl)-1,N(6)-etheno-ATP (Bz(2)-epsilonATP), was synthesized and reacted with the rice kinesin K16 motor domain (K16MD). In the presence of ADP or ATP, UV irradiation of the K16MD solution containing Bz(2)-epsilonATP resulted in a new 100 kDa band, which...

journal_title：Journal of biochemistry

authors： Umeki N,Mitsui T,Koike Y,Maruta S

更新日期：2006-05-01 00:00:00

abstract：:Hepatitis C virus (HCV) core protein has been suggested to play crucial roles in the pathogeneses of liver steatosis and hepatocellular carcinomas due to HCV infection. Intracellular HCV core protein is localized mainly in lipid droplets, in which the core protein should exert its significant biological/pathological f...

journal_title：Journal of biochemistry

authors： Sato S,Fukasawa M,Yamakawa Y,Natsume T,Suzuki T,Shoji I,Aizaki H,Miyamura T,Nishijima M

更新日期：2006-05-01 00:00:00

abstract：:We have developed a new DNA chip whose substrate has a unique minute columnar array structure made of plastic. The DNA chip exhibits ultrahigh sensitivity, up to 100-fold higher than that of reference DNA chips, which makes it possible to monitor gene expression profiles even with very small amounts of RNA (0.1-0.01 m...

journal_title：Journal of biochemistry

authors： Nagino K,Nomura O,Takii Y,Myomoto A,Ichikawa M,Nakamura F,Higasa M,Akiyama H,Nobumasa H,Shiojima S,Tsujimoto G

更新日期：2006-04-01 00:00:00

abstract：:The three-dimensional structure of rat-liver acyl-CoA oxidase-II (ACO-II) in a complex with a C12-fatty acid was solved by the molecular replacement method based on the uncomplexed ACO-II structure. The crystalline form of the complex was obtained by cocrystallization of ACO-II with dodecanoyl-CoA. The crystalline com...

journal_title：Journal of biochemistry

authors： Tokuoka K,Nakajima Y,Hirotsu K,Miyahara I,Nishina Y,Shiga K,Tamaoki H,Setoyama C,Tojo H,Miura R

更新日期：2006-04-01 00:00:00

abstract：:We have isolated a gene (clone Y113G7A.11) from Caenorhabditis elegans (C. elegans), that we have designated as ceST1, and which is the only member of the cytosolic sulfotransferase (SULT) gene family present in the genome of this organism. We identified the SULT motifs of ceST1 based upon their deduced amino acid seq...

journal_title：Journal of biochemistry

authors： Hattori K,Inoue M,Inoue T,Arai H,Tamura HO

更新日期：2006-03-01 00:00:00

abstract：:Activation of muscarinic acetylcholine receptors (mAChRs) causes the rapid release of Ca2+ from intracellular stores and a sustained influx of external Ca2+ in PC12D cells, a subline of the widely studied cell line PC12. Release of Ca2+ from intracellular stores and a sustained influx of Ca2+ are also observed followi...

journal_title：Journal of biochemistry

authors： Ebihara T,Guo F,Zhang L,Kim JY,Saffen D

更新日期：2006-03-01 00:00:00

abstract：:Pseudomonas L-phenylalanine oxidase (deaminating and decarboxylating) mainly catalyzes oxygenation when L-phenylalanine is used as the substrate, but oxidation when L-methionine is used as the substrate. Using [C(alpha)-H]-DL-methionine and [C(alpha)-D]-DL-methionine as substrate, the reductive half reaction of FAD co...

journal_title：Journal of biochemistry

authors： Ohta Y,Mukouyama EB,Suzuki H

更新日期：2006-03-01 00:00:00

abstract：:Proteins in the brush border membrane (BBM) of the midgut binding to the insecticidal Cry1Ac toxin from Bacillus thuringiensis were investigated to examine the lower sensitivity of Bombyx mori to Cry1Ac, and new aminopeptidase N that bound to Cry1Ac was discovered. DEAE chromatography of Triton X-100-soluble BBM prote...

journal_title：Journal of biochemistry

authors： Shitomi Y,Hayakawa T,Hossain DM,Higuchi M,Miyamoto K,Nakanishi K,Sato R,Hori H

更新日期：2006-02-01 00:00:00

abstract：:Hyaluronan (HA), a high-molecular-weight glycosaminoglycan ubiquitously present in the extracellular matrices (ECMs) of animals, plays important roles in ECM organization and cell behavior through binding to hyaluronan-binding proteins (HABPs). We previously reported that HA has anti-inflammatory effects on guinea pig...

journal_title：Journal of biochemistry

authors： Nochi H,Shinomiya T,Tamoto K

更新日期：2006-01-01 00:00:00

abstract：:ADAMTS13 is the metalloprotease responsible for the proteolytic degradation of von Willebrand factor (VWF). A severe deficiency of this VWF-cleaving protease activity causes thrombotic thrombocytopenic purpura. This protease, comprising 1,427 amino acid residues, is composed of multiple domains, i.e., a preproregion, ...

journal_title：Journal of biochemistry

authors： Soejima K,Nakamura H,Hirashima M,Morikawa W,Nozaki C,Nakagaki T

更新日期：2006-01-01 00:00:00

abstract：:ISG15 is a ubiquitin-like protein that is upregulated on treatment with interferon. ISG15 is considered to be covalently conjugated to cellular proteins through a sequential reaction similar to that of the ubiquitin conjugation system consisting of E1/E2/E3 enzymes: UBE1L and UbcH8 have been reported to function as E1...

journal_title：Journal of biochemistry

authors： Takeuchi T,Iwahara S,Saeki Y,Sasajima H,Yokosawa H

更新日期：2005-12-01 00:00:00

abstract：:We previously reported that caldesmon (CaD), together with tropomyosin (TM), effectively protects actin filaments from gelsolin, an actin-severing protein. To elucidate the structure/function relationship of CaD, we dissected the functional domain of CaD required for the protection. The basic C-terminal half of rat no...

journal_title：Journal of biochemistry

authors： Takiguchi K,Matsumura F

更新日期：2005-12-01 00:00:00

abstract：:Dimer formation of HIV-1 genomic RNA through its dimerization initiation site (DIS) is crucial to maintaining infectivity. Two types of dimers, the initially generated kissing-loop dimer and the subsequent product of the extended-duplex dimer, are formed in the stem-bulge-stem region with a loop including a self-compl...

journal_title：Journal of biochemistry

authors： Baba S,Takahashi K,Noguchi S,Takaku H,Koyanagi Y,Yamamoto N,Kawai G

更新日期：2005-11-01 00:00:00

abstract：:Studies on the solution structure dynamics of RNA/DNA are becoming crucially important. The phenomena of SSCP (single-strand conformation polymorphism), small RNA dynamics in a cell, and others can be related to the conformational changes of single-stranded (ss) RNAs/DNAs in solution. However, little is known about th...

journal_title：Journal of biochemistry

authors： Biyani M,Nishigaki K

更新日期：2005-10-01 00:00:00

abstract：:The chromatin remodeling complex, SWI/SNF, is known to regulate the transcription of several genes by altering the chromatin structure in an ATP-dependent manner. SWI/SNF exclusively contains BRG1 or BRM as an ATPase subunit. In the present study, we studied the role of SWI/SNF containing BRM or BRG1 in the expression...

journal_title：Journal of biochemistry

authors： Inayoshi Y,Kaneoka H,Machida Y,Terajima M,Dohda T,Miyake K,Iijima S

更新日期：2005-10-01 00:00:00

abstract：:Activity-oligomeric assembly relationships using octaethylene glycol dodecyl ether (C12E8) solubilized pig gastric H/K-ATPase (unmodified H/K-ATPase) or H/K-ATPase modified with Fluorescein 5'-isothiocyanate (FITC-H/K-ATPase) were examined. The amount of oligomeric species in FITC-H/K-ATPase, which retained little H/K...

journal_title：Journal of biochemistry

authors： Abe K,Kaya S,Taniguchi K,Hayashi Y,Imagawa T,Kikumoto M,Oiwa K,Sakaguchi K

更新日期：2005-09-01 00:00:00

abstract：:The phosphomannomutase/phosphoglucomutase (PMM/PGM) enzyme catalyzes reversibly the intra-molecular phosphoryl interconverting reaction of mannose-6-phosphate and mannose-1-phosphate or glucose-6-phosphate and glucose-1-phosphate. Glucose-6-phosphate and glucose-1-phosphate are known to be utilized for energy metaboli...

journal_title：Journal of biochemistry

authors： Akutsu J,Zhang Z,Tsujimura M,Sasaki M,Yohda M,Kawarabayasi Y

更新日期：2005-08-01 00:00:00

abstract：:Aspartic proteases of human malarial parasites are thought to play key roles in essential pathways of merozoite release, invasion and host cell hemoglobin degradation during the intraerythrocytic stages of their life cycle. Therefore, we have purified and characterized Plasmodium vivax aspartic protease, to determine ...

journal_title：Journal of biochemistry

authors： Sharma A,Eapen A,Subbarao SK

更新日期：2005-07-01 00:00:00

abstract：:We have previously reported that the amount of Apg-2, an Hsp110 family protein, decreases during apoptosis in Jurkat T cells. Since we hypothesized that Apg-2 would be cleaved by caspase-3 during apoptosis, a cleavage-site-directed antibody was raised against the carboxyl-terminus of the Apg-2 fragment that appears af...

journal_title：Journal of biochemistry

authors： Kato M,Nonaka T,Imajoh-Ohmi S

更新日期：2005-06-01 00:00:00

abstract：:Thrombomodulin (TM) is a thrombin receptor on the surface of endothelial cells that converts thrombin from a procoagulant to an anticoagulant. Thrombin promotes invasion by various tumor cells, and positive or negative correlations are found between the expression of TM and tumorigenesis in some patients. In this stud...

journal_title：Journal of biochemistry

authors： Niimi S,Harashima M,Takayama K,Hara M,Hyuga M,Seki T,Ariga T,Kawanishi T,Hayakawa T

更新日期：2005-05-01 00:00:00

abstract：:Dupuytren's disease is a palmar fibromatosis associated with changes in fibroblast activity that also affect the metabolism of extracellular matrix components. In contrast to disease connected alterations in collagen and non-collagenous glycoproteins (mainly fibronectin), the metabolism of proteoglycans, being glycosa...

journal_title：Journal of biochemistry

authors： Koźma EM,Olczyk K,Wisowski G,Głowacki A,Bobiński R

更新日期：2005-04-01 00:00:00

abstract：:The FLI-1 transcription factor is a member of the ETS gene family, most closely related to ERG. In this study, the FLI-1 protein products were characterized using a specific monoclonal antibody previously developed against bacterially expressed protein. In the human T-cell line Jurkat, both isoforms of FLI-1, p51 and ...

journal_title：Journal of biochemistry

authors： Zhang XK,Watson DK

更新日期：2005-03-01 00:00:00

abstract：:D-type cyclin-dependent kinases (Cdk4 and Cdk6) regulate the G1 to S phase progression of the mammalian cell cycle. It has been suggested that Cdk4 and Cdk6 may have distinct functions in vivo, even though they are indistinguishable biochemically. Here we show that although these Cdks phosphorylate multiple residues i...

journal_title：Journal of biochemistry

authors： Takaki T,Fukasawa K,Suzuki-Takahashi I,Semba K,Kitagawa M,Taya Y,Hirai H

更新日期：2005-03-01 00:00:00

abstract：:We have previously reported that calpastatin, an endogenous inhibitory protein of calpain, is cleaved by a caspase-3-like protease during apoptosis in human Jurkat T cells [Kato, M. et al. (2000) J. Biochem. 127, 297-305]. In this study, we found that nonmuscle myosin heavy chain-A (NMHC-A) is cleaved during apoptosis...

journal_title：Journal of biochemistry

authors： Kato M,Fukuda H,Nonaka T,Imajoh-Ohmi S

更新日期：2005-02-01 00:00:00

abstract：:An esterase that specifically hydrolyzes medium-chain (C(3)-C(5)) monoalkyl phthalates was purified from phthalate-grown Micrococcus sp. YGJ1. The enzyme activity was split into two fractions by hydrophobic chromatography on Phenyl Sepharose, and the enzymes were purified to homogeneity from each fraction. The purifie...

journal_title：Journal of biochemistry

authors： Maruyama K,Akita K,Naitou C,Yoshida M,Kitamura T

更新日期：2005-01-01 00:00:00

abstract：:The structural glycoprotein E(rns) of classical swine fever virus (CSFV) is one of the major antibody targets upon infection of pigs with the virus. Molecular dissection of the structure of E(rns) would define the minimal immunodominant regions that induce antibody responses after infection and may thus help design an...

journal_title：Journal of biochemistry

authors： Lin M,Trottier E,Pasick J,Sabara M

更新日期：2004-12-01 00:00:00

abstract：:The SoxR protein of Escherichia coli responds to redox signals by activating the transcription of soxS, which encodes another transcription activator that directly stimulates oxidative stress genes. In contrast, Pseudomonas aeruginosa has an open reading frame (ORF) encoding a putative protein homologous to E. coli So...

journal_title：Journal of biochemistry

authors： Kobayashi K,Tagawa S

更新日期：2004-11-01 00:00:00

abstract：:To gain insight into the mechanism by which the sequence at the rne-dependent site of substrate RNA affects the substrate specificity of Escherichia coli RNase E, we performed kinetic analysis of the cleavage of precursor M1 RNA molecules containing various sequences at the rne-dependent site by the N-terminal catalyt...

journal_title：Journal of biochemistry

authors： Kim KS,Sim S,Ko JH,Cho B,Lee Y

更新日期：2004-11-01 00:00:00

abstract：:LukF and Hlg2 of staphylococcal gamma-hemolysin assemble into hetero-oligomeric pores on human red blood cells (HRBC). Here, we demonstrate, using a single-molecule imaging technique, that a W177T/R198T mutant of LukF, which exhibits no binding activity toward phosphatidylcholine, could form intermediate oligomers wit...

journal_title：Journal of biochemistry

authors： Monma N,Nguyen VT,Kaneko J,Higuchi H,Kamio Y

更新日期：2004-10-01 00:00:00

abstract：:In this work we have studied the equilibrium and kinetic stability of a hyperthermophilic protein, O(6)-methylguanine-DNA methyltransferase (Tk-MGMT), and its mesophilic counterpart AdaC, in various chemical solutions. In an unfolding experiment using guanidine hydrochloride (GdnHCl), the unfolding free-energy change ...

journal_title：Journal of biochemistry

authors： Nishikori S,Shiraki K,Okanojo M,Imanaka T,Takagi M

更新日期：2004-10-01 00:00:00

abstract：:The mitogen-activated protein (MAP) kinase cascades play essential roles in a variety of cell processes by influencing transcriptional or translational regulation. ERKs play a central role in survival and mitogenic signaling, while JNKs and p38 MAP kinases are preferentially activated by environmental stresses and are...

journal_title：Journal of biochemistry

authors： Matsukawa J,Matsuzawa A,Takeda K,Ichijo H

更新日期：2004-09-01 00:00:00