abstract：:Spontaneous insertion of membrane proteins into liposomes formed from Escherichia coli polar phospholipids is blocked by diacylglycerol (DAG) at a physiological level. We found that cholesterol also blocks this spontaneous insertion, although a much larger amount is necessary for sufficient blockage. Reversely, sphing...

journal_title：Journal of biochemistry

authors： Nakamura S,Suzuki S,Saito H,Nishiyama KI

更新日期：2018-04-01 00:00:00

abstract：:DNA synthesis in the Bacillus subtilis cells has become possible using extra-cellular DNA. Generally, purified DNAs in a test tube have been required to introduce into the host cells for molecular cloning technology in the laboratory. We have developed a cell lysis technique for natural transformation using stable ext...

journal_title：Journal of biochemistry

authors： Kaneko S,Fukushima H,Nakahama M,Asano S,Miyazaki Y,Aizawa Y,Itaya M

更新日期：2018-04-01 00:00:00

abstract：:Cilia and flagella of eukaryotic cells are evolutionarily conserved organelles with a microtubule-based axoneme as a scaffold. To fulfil their functions in cellular motility, sensory reception and developmental signalling, cilia contain unique proteins, such as receptors and ion channels. The assembly and maintenance ...

journal_title：Journal of biochemistry

authors： Nakayama K,Katoh Y

更新日期：2018-03-01 00:00:00

abstract：:The stress-related protein Stm1 interacts with ribosomes, and is implicated in repressing translation. Stm1 was previously studied both in vivo and in vitro by cell-free translation systems using crude yeast lysates, but its precise functional mechanism remains obscure. Using an in vitro reconstituted translation syst...

journal_title：Journal of biochemistry

authors： Hayashi H,Nagai R,Abe T,Wada M,Ito K,Takeuchi-Tomita N

更新日期：2018-03-01 00:00:00

abstract：:Roxadustat (FG-4592, Rox) is a stabilizer for hypoxia-inducible transcription factors (HIFs), which induce production of the erythroid growth factor erythropoietin, and has been listed by the World Anti-Doping Agency as a prohibited substance for athletes since 2011. Although the detection technologies for Rox and its...

journal_title：Journal of biochemistry

authors： Saigusa D,Suzuki N,Matsumoto Y,Umeda K,Tomioka Y,Koshiba S,Yamamoto M

更新日期：2018-02-09 00:00:00

abstract：:Peroxiredoxin from Pyrococcus horikoshii (PhPrx) is a decameric protein formed by ring-type assembly of five dimers. To engineer the quaternary structure of PhPrx, we created a mutant PhPrx (PhPrx6m) by introducing six point mutations designed to dissociate PhPrx into dimers. Although PhPrx6m was a dimer in solution, ...

journal_title：Journal of biochemistry

authors： Nakamura T,Oshima M,Yasuda M,Shimamura A,Morita J,Uegaki K

更新日期：2017-12-01 00:00:00

abstract：:Protein tyrosine phosphatase receptor type Z (PTPRZ, also known as PTPζ or RPTPβ) is preferentially expressed in the central nervous system (CNS). PTPRZ plays important roles during development and adulthood in CNS myelination, learning and memory. Three splicing isoforms for PTPRZ have been identified to date: two re...

journal_title：Journal of biochemistry

authors： Fujikawa A,Chow JPH,Matsumoto M,Suzuki R,Kuboyama K,Yamamoto N,Noda M

更新日期：2017-11-01 00:00:00

abstract：:Tissue remodelling and regeneration in various pathophysiological conditions (e.g. the processes of development, pregnancy, inflammation, wound healing, tissue regeneration, tumor growth, etc.) require angiogenesis, a dynamically coordinated response to stimuli from the extracellular microenvironment. During angiogeni...

journal_title：Journal of biochemistry

authors： Sakaue T,Maekawa M,Nakayama H,Higashiyama S

更新日期：2017-10-01 00:00:00

abstract：:Long interspersed nuclear element (LINE) is known to be transposed by reverse transcription using its RNA transcript. Recognition of the 3' stem-loop of LINE RNA by its reverse transcriptase (RT) is an important step of the retrotransposition. Our previous study revealed that the second G residue (G8) in the GGAUA loo...

journal_title：Journal of biochemistry

authors： Otsu M,Kajikawa M,Okada N,Kawai G

更新日期：2017-10-01 00:00:00

abstract：:Neuronal synapse formation is regulated by pre- and postsynaptic cell adhesion molecules. Presynaptic neurexins (NRXNs) and receptor protein tyrosine phosphatases (RPTPs; PTPδ, PTPσ and LAR in mammals) can induce postsynaptic differentiation through the interaction with various postsynaptic cell adhesion molecules. He...

journal_title：Journal of biochemistry

authors： Uemura T,Shiroshima T,Maeda A,Yasumura M,Shimada T,Fukata Y,Fukata M,Yoshida T

更新日期：2017-10-01 00:00:00

abstract：:When compared with collagens isolated from animal sources, collagens and collagen-like (CL) proteins from non-animal sources are non-immunogenic and thus promising as biomedical materials. Recently, a CL protein, V-CL, was identified from a bacterial source, Streptococcus pyogenes. In this study, an acid-precipitation...

journal_title：Journal of biochemistry

authors： Ma L,Chai Y,Wu T,Wang M

更新日期：2017-09-01 00:00:00

abstract：:Bispecific antibody targeting of two different antigens is promising, but when fragment-based antibodies are used, homogeneous production is difficult. To overcome this difficulty, we developed a method using the SpyTag/SpyCatcher system in which a covalent bond is formed between the two polypeptides. Using this metho...

journal_title：Journal of biochemistry

authors： Yumura K,Akiba H,Nagatoishi S,Kusano-Arai O,Iwanari H,Hamakubo T,Tsumoto K

更新日期：2017-09-01 00:00:00

abstract：:FOXP2 is a member of the P subfamily of FOX transcription factors, the DNA-binding domain of which is the winged helix forkhead domain (FHD). In this work we show that the FOXP2 FHD is able to bind to various DNA sequences, including a novel sequence identified in this work, with different affinities and rates as dete...

journal_title：Journal of biochemistry

authors： Webb H,Steeb O,Blane A,Rotherham L,Aron S,Machanick P,Dirr H,Fanucchi S

更新日期：2017-07-01 00:00:00

abstract：:Aggregatibacter actinomycetemcomitans is an oral pathogen for aggressive periodontitis, and encodes a triheme c-containing membrane-bound enzyme, quinol peroxidase (QPO) that catalyzes peroxidase activity using quinol in the respiratory chain. In the previous work, we have characterized recombinant QPO purified from t...

journal_title：Journal of biochemistry

authors： Abe T,Kawarai T,Takahashi Y,Konishi K

更新日期：2017-06-01 00:00:00

abstract：:Inhibitory PAS domain protein (IPAS) is a dual function protein acting as a transcriptional repressor and as a pro-apoptotic protein. Simultaneous dual-color single-molecule imaging of EGFP-IPAS coexpressed with Mit-TagRFP-T in living HeLa cells revealed that fraction of EGFP-IPAS was arrested in the nucleus and on mi...

journal_title：Journal of biochemistry

authors： Kasai S,Kajimoto S,Ito Y,Saito T,Yasumoto KI,Tokunaga M,Sakata-Sogawa K,Fukumura H,Sogawa K

更新日期：2017-03-01 00:00:00

abstract：:The G72 gene is one of the most susceptible genes to schizophrenia and is contained exclusively in the genomes of primates. The product of the G72 gene modulates the activity of D-amino acid oxidase (DAO) and is a small protein prone to aggregate, which hampers its structural studies. In addition, lack of a known stru...

journal_title：Journal of biochemistry

authors： Kato Y,Fukui K

更新日期：2017-02-01 00:00:00

abstract：:Cell metabolism can be considered as a process of serial construction and destruction of cellular components, both of which must be regulated accurately. In eukaryotic cells, a variety of cellular components are actively delivered into lysosomes/vacuoles, specialized compartments for hydrolysis of macromolecules. Such...

journal_title：Journal of biochemistry

authors： Fujiwara Y,Wada K,Kabuta T

更新日期：2017-02-01 00:00:00

abstract：:Paramyosin is a myosin-binding protein characteristic of invertebrate animals, while troponin is a Ca2+-dependent regulator of muscle contraction. Both proteins are widely distributed in protostomes, while in deuterostomes, their distribution is limited; namely, presence of paramyosin and absence of troponin are commo...

journal_title：Journal of biochemistry

authors： Sonobe H,Obinata T,Minokawa T,Haruta T,Kawamura Y,Wakatsuki S,Sato N

更新日期：2016-12-01 00:00:00

abstract：:d-Aspartate is found in the nervous and reproductive system and participates in various physiological roles. While several lines of evidence suggest that this amino acid has an endogenous origin, the enzyme responsible for mammalian d-Asp biosynthesis has not yet been identified. We show that mammalian serine racemase...

journal_title：Journal of biochemistry

authors： Ito T,Hayashida M,Kobayashi S,Muto N,Hayashi A,Yoshimura T,Mori H

更新日期：2016-12-01 00:00:00

abstract：:Microvesicles (MVs) serve as vectors of nucleic-acid dissemination and are important mediators of intercellular communication. However, the functionality of packaged nucleic acids on recipient cells following transfer of MV cargo has not been clearly elucidated. This limitation is attributed to a lack of methodology a...

journal_title：Journal of biochemistry

authors： Lu JF,Pokharel D,Padula MP,Bebawy M

更新日期：2016-11-01 00:00:00

abstract：:Two transferrin (Tf) glycan-isoforms were previously found in cerebrospinal fluid (CSF); one appears to be derived from serum (Tf-2) and the other from choroid plexus, a CSF-producing tissue (Tf-1). To analyse metabolic differences associated with the two isoforms, their ratio (Tf-2/Tf-1) was defined as the Tf index. ...

journal_title：Journal of biochemistry

authors： Yoshihara A,Fukatsu M,Hoshi K,Ito H,Nollet K,Yamaguchi Y,Ishii R,Tokuda T,Miyajima M,Arai H,Kato T,Furukawa K,Arai H,Kikuchi A,Takeda A,Ugawa Y,Hashimoto Y

更新日期：2016-08-01 00:00:00

abstract：:Parathyroid hormone-related protein (PTHrP) has two different targeting signals: an N-terminal signal peptide for the endoplasmic reticulum (ER) targeting and an internal nuclear localization signal. The protein not only functions as a secretory protein, but is also found in the nucleus and/or nucleolus under certain ...

journal_title：Journal of biochemistry

authors： Amaya Y,Nakai T,Miura S

更新日期：2016-04-01 00:00:00

abstract：:The 5'-AMP-activated protein kinase (AMPK) functions as a cellular energy sensor. 5-Aminoimidazole-4-carboxyamide-1-β-D-ribofranoside (AICAR) is a chemical activator of AMPK. In the liver, AICAR suppresses expression of thephosphoenolpyruvate carboxykinase(PEPCK) gene. The rat enhancer of split- and hairy-related prot...

journal_title：Journal of biochemistry

authors： Komatsu Y,Yanagisawa Y,Moriizumi M,Tsuchiya Y,Yokouchi H,Otsuka H,Aoyagi M,Tsukada A,Kanai Y,Haneishi A,Takagi K,Asano K,Ono M,Tanaka T,Tomita K,Yamada K

更新日期：2016-04-01 00:00:00

abstract：:Activation of antiviral innate immunity is triggered by cellular pattern recognition receptors. Retinoic acid inducible gene-I (RIG-I)-like receptors (RLRs) detect viral non-self RNA in cytoplasm of virus-infected cells and play a critical role in the clearance of the invaded viruses through production of antiviral cy...

journal_title：Journal of biochemistry

authors： Yoneyama M,Jogi M,Onomoto K

更新日期：2016-03-01 00:00:00

abstract：:Methylobacterium extorquens AM1 is an aerobic facultative methylotroph known to secrete pyrroloquinoline quinone (PQQ), a cofactor of a number of bacterial dehydrogenases, into the culture medium. To elucidate the molecular mechanism of PQQ biosynthesis, we are focusing on PqqE which is believed to be the enzyme catal...

journal_title：Journal of biochemistry

authors： Saichana N,Tanizawa K,Pechoušek J,Novák P,Yakushi T,Toyama H,Frébortová J

更新日期：2016-01-01 00:00:00

abstract：:Thioredoxin 1 (Trx1) is known to play an important role in protecting against cell death. However, the mechanism for control of Trx1 in cell death resulting from DNA damage has not been fully investigated. In this study, we used the DNA-damaging agent methyl methanesulfonate (MMS) to investigate the protective effects...

journal_title：Journal of biochemistry

authors： Gu L,Gao W,Yang HM,Wang BB,Wang XN,Xu J,Zhang H

更新日期：2016-01-01 00:00:00

abstract：:Hyperthermophilic bacteria Thermotoga maritima and Thermotoga hypogea produce ethanol as a metabolic end product, which is resulted from acetaldehyde reduction catalysed by an alcohol dehydrogenase (ADH). However, the enzyme that is involved in the production of acetaldehyde from pyruvate is not well characterized. An...

journal_title：Journal of biochemistry

authors： Eram MS,Wong A,Oduaran E,Ma K

更新日期：2015-12-01 00:00:00

abstract：:The Mediator complex (Mediator) plays key roles in transcription and functions as the nexus for integration of various transcriptional signals. Previously, we screened for Mediator cyclin-dependent kinase (CDK)-interacting factors and identified three proteins related to chromatin regulation. One of them, SUZ12 is req...

journal_title：Journal of biochemistry

authors： Fukasawa R,Iida S,Tsutsui T,Hirose Y,Ohkuma Y

更新日期：2015-11-01 00:00:00

abstract：:Certain proteins utilize the high reactivity of radicals for catalysing chemically challenging reactions. These proteins contain or form a radical and therefore named 'radical enzymes'. Radicals are introduced by enzymes themselves or by (re)activating proteins called (re)activases. The X-ray structures of radical enz...

journal_title：Journal of biochemistry

authors： Shibata N,Toraya T

更新日期：2015-10-01 00:00:00

abstract：:Acid ceramidase (ACDase) metabolizes ceramide to sphingosine, leading to sphingosine 1-phosphate production. Reportedly, ACDase has been upregulated in prostate cancer. However, its regulatory mechanism remains unclear. LNCaP (androgen-sensitive prostate cancer cell line) but not PC3 and DU-145, (androgen-unresponsive...

journal_title：Journal of biochemistry

authors： Mizutani N,Inoue M,Omori Y,Ito H,Tamiya-Koizumi K,Takagi A,Kojima T,Nakamura M,Iwaki S,Nakatochi M,Suzuki M,Nozawa Y,Murate T

更新日期：2015-10-01 00:00:00

abstract：:Eph/ephrin signalling plays essential roles in various tissue developments, such as axon guidance, angiogenesis and tissue separation. Interaction between Ephs and ephrins upon cell-cell contact results in forward (towards Eph-expressing cells) and reverse (towards ephrin-expressing cells) signalling. Although the mol...

journal_title：Journal of biochemistry

authors： Takeuchi S,Katoh H,Negishi M

更新日期：2015-09-01 00:00:00

abstract：:The scaffolding protein Salvador (Sav) plays a key role in the Hippo (Hpo) signalling pathway, which controls tissue growth by inhibiting cell proliferation and promoting apoptosis. Dysregulation of the Hippo pathway contributes to cancer development. Since the identification of the first Sav gene in 2002, very little...

journal_title：Journal of biochemistry

authors： Song J,Hong HR,Yamashita E,Park IY,Lee SJ

更新日期：2015-09-01 00:00:00

abstract：:Many membrane proteins such as ion channels are oligomers, but the determinants of the degree of oligomerization are not fully understood. Mechanosensitive channel with large conductance (MscL), which is ubiquitous in bacteria, is a homopentamer with two transmembrane helices and a cytoplasmic helix in each subunit. T...

journal_title：Journal of biochemistry

authors： Ando C,Liu N,Yoshimura K

更新日期：2015-08-01 00:00:00

abstract：:Two G-protein-coupled receptors (GPCRs) that couple with Gαq/11, B2 bradykinin (BK) receptor (B2R) and ATP/UTP receptor P2Y2 (P2Y2R), are ubiquitously expressed and responsible for vascular tone, inflammation, and pain. We analysed the cellular signalling of P2Y2Rs in cells that express B2Rs. B2R desensitization induc...

journal_title：Journal of biochemistry

authors： Yashima S,Shimazaki A,Mitoma J,Nakagawa T,Abe M,Yamada H,Higashi H

更新日期：2015-08-01 00:00:00

abstract：:RPE65 is a membrane-associated retinoid isomerase involved in the visual cycle responsible for sustaining vision. Many mutations in the human RPE65 gene are associated with distinct forms of retinal degenerative diseases. The pathogenic mechanisms for most of these mutations remain poorly understood. Here, we show tha...

journal_title：Journal of biochemistry

authors： Li S,Hu J,Jin RJ,Aiyar A,Jacobson SG,Bok D,Jin M

更新日期：2015-08-01 00:00:00

abstract：:A number of gene mutations are detected in cells derived from human cancer tissues, but roles of these mutations in cancer cell development are largely unknown. We examined G364R mutation of MCM4 detected in human skin cancer cells. Formation of MCM4/6/7 complex is not affected by the mutation. Consistent with this no...

journal_title：Journal of biochemistry

authors： Ishimi Y,Irie D

更新日期：2015-06-01 00:00:00

abstract：:The cellular Src (c-Src) tyrosine kinase is upregulated and believed to play a pivotal role in various human cancers. However, the molecular mechanism underlying c-Src-mediated tumour progression remains elusive. Recent studies have revealed that several microRNAs (miRNAs) function as tumour suppressors by regulating ...

journal_title：Journal of biochemistry

authors： Oneyama C,Okada M

更新日期：2015-06-01 00:00:00

abstract：:Glycogen phosphorylase (GP) is biologically active as a dimer of identical subunits. Each subunit has two distinct maltooligosaccharide binding sites: a storage site and a catalytic site. Our characterization of the properties of these sites suggested that GP activity consists of two activities: (i) binding to the gly...

journal_title：Journal of biochemistry

authors： Makino Y,Fujii Y,Taniguchi M

更新日期：2015-06-01 00:00:00

abstract：:Heparin-binding epidermal growth factor-like growth factor (HB-EGF), a ligand of EGF receptor, is involved in the growth and malignant progression of cancers. Cross-reacting material 197, CRM197, a non-toxic mutant of diphtheria toxin (DT), specifically binds to the EGF-like domain of HB-EGF and inhibits its mitogenic...

journal_title：Journal of biochemistry

authors： Suzuki K,Mizushima H,Abe H,Iwamoto R,Nakamura H,Mekada E

更新日期：2015-05-01 00:00:00

abstract：:The DegS-DegU two-component regulatory system regulates many cellular events in Bacillus subtilis. Genes for DegSU constitutes an operon directed by the P1 promoter and downstream degU is autoregulated via the P3 promoter activated by phosphorylated DegU. In the Gram-positive bacteria, Spx plays a major role in the pr...

journal_title：Journal of biochemistry

authors： Shiwa Y,Yoshikawa H,Tanaka T,Ogura M

更新日期：2015-05-01 00:00:00