Further clues concerning the vectors essential to regulation of hexose transport, as studied in fibroblast cultures from a metabolic mutant.

abstract：:Cytochrome ba3 from Thermus thermophilus reacts slowly with excess HCN at pH 7.4 to create a form of the enzyme in which CuA, cytochrome b, and CuB remain oxidized, while cytochrome a3 is reduced by one electron, presumably with the formation of cyanogen. We have examined this form of the enzyme by UV-visible, resonan...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Surerus KK,Oertling WA,Fan C,Gurbiel RJ,Einarsdóttir O,Antholine WE,Dyer RB,Hoffman BM,Woodruff WH,Fee JA

更新日期：1992-04-15 00:00:00

abstract：:RecQ helicases are a widely conserved family of ATP-dependent motors with diverse roles in nearly every aspect of bacterial and eukaryotic genome maintenance. However, the physical mechanisms by which RecQ helicases recognize and process specific DNA replication and repair intermediates are largely unknown. Here, we s...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Pike AC,Gomathinayagam S,Swuec P,Berti M,Zhang Y,Schnecke C,Marino F,von Delft F,Renault L,Costa A,Gileadi O,Vindigni A

更新日期：2015-04-07 00:00:00

abstract：:Melittin messenger RNA from queen bee venom glands has been translated in a cell-free system from wheat germ. A product larger than promelittin is formed which has the carboxy-terminal sequence-Gln-Gln-GlyCOOH. Melittin and promelittin from venom glands terminate in -Gln-GlnCONH2. The possible role of the extra glycin...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Suchanek G,Kreil G

更新日期：1977-03-01 00:00:00

abstract：:Pristine meteoritic materials carry light element isotopic fractionations that constrain physiochemical conditions during solar system formation. Here we report the discovery of a unique xenolith in the metal-rich chondrite Isheyevo. Its fine-grained, highly pristine mineralogy has similarity with interplanetary dust ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Briani G,Gounelle M,Marrocchi Y,Mostefaoui S,Leroux H,Quirico E,Meibom A

更新日期：2009-06-30 00:00:00

abstract：:All proteins of this world are constructed in compliance with the same rule. Accordingly, two totally unrelated proteins, on the average, share 30 identical tripeptides, two tetrapeptides, and one pentapeptide per 500 residues. With this in mind, the 221-residue-long influenza virus hemagglutinin II (IVHA-II), as a re...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Ohno S

更新日期：1991-04-15 00:00:00

abstract：:Dynamic signals linking the actin cytoskeleton and cell adhesion receptors are essential for morphogenesis during development and normal tissue homeostasis. Abi1 is a central regulator of actin polymerization through interactions with multiple protein complexes. However, the in vivo role of Abi1 remains to be defined....

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Ring C,Ginsberg MH,Haling J,Pendergast AM

更新日期：2011-01-04 00:00:00

abstract：:The flavin cofactor in photoenzyme photolyase and photoreceptor cryptochrome may exist in an oxidized state and should be converted into reduced state(s) for biological functions. Such redox changes can be efficiently achieved by photoinduced electron transfer (ET) through a series of aromatic residues in the enzyme. ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Liu Z,Tan C,Guo X,Li J,Wang L,Sancar A,Zhong D

更新日期：2013-08-06 00:00:00

abstract：:This study examines the basis of resistance and sensitivity of normal and transformed cells to histone deacetylase inhibitor (HDACi)-induced cell death, specifically the role of caspases and thioredoxin (Trx). An important attribute of HDACis is that they induce cancer cell death at concentrations to which normal cell...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Ungerstedt JS,Sowa Y,Xu WS,Shao Y,Dokmanovic M,Perez G,Ngo L,Holmgren A,Jiang X,Marks PA

更新日期：2005-01-18 00:00:00

abstract：:The transmembrane precursor of tumor necrosis factor-alpha (TNF) exits the trans-Golgi network (TGN) in tubular carriers for subsequent trafficking and delivery to the cell surface; however, the molecular machinery responsible for Golgi export is unknown. We previously reported that members of the TGN golgin family ar...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Lieu ZZ,Lock JG,Hammond LA,La Gruta NL,Stow JL,Gleeson PA

更新日期：2008-03-04 00:00:00

abstract：:Eukaryotic mRNA degradation proceeds through two main pathways, both involving mRNA cap breakdown. In the 3'-5' mRNA decay pathway, mRNA body degradation generates free m7GpppN that is hydrolyzed by DcpS generating m7GMP. In the 5'-3' pathway, the recently identified human Dcp2 decapping enzyme cleaves the cap of dead...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： van Dijk E,Le Hir H,Séraphin B

更新日期：2003-10-14 00:00:00

abstract：:A molecular genetic approach employing polymorphic DNA markers has been used to investigate the role of chromosomal aberrations in meningioma, one of the most common tumors of the human nervous system. Comparison of the alleles detected by DNA markers in tumor DNA versus DNA from normal tissue revealed chromosomal alt...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Seizinger BR,de la Monte S,Atkins L,Gusella JF,Martuza RL

更新日期：1987-08-01 00:00:00

abstract：:Using an antibody highly specific for D-serine conjugated to glutaraldehyde, we have localized endogenous D-serine in rat brain. Highest levels of D-serine immunoreactivity occur in the gray matter of the cerebral cortex, hippocampus, anterior olfactory nucleus, olfactory tubercle, and amygdala. Localizations of D-ser...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Schell MJ,Molliver ME,Snyder SH

更新日期：1995-04-25 00:00:00

abstract：:Protein-DNA interactions were studied in vivo at the region containing a human DNA replication origin, located at the 3' end of the lamin B2 gene and partially overlapping the promoter of another gene, located downstream. DNase I treatment of nuclei isolated from both exponentially growing and nonproliferating HL-60 c...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Dimitrova DS,Giacca M,Demarchi F,Biamonti G,Riva S,Falaschi A

更新日期：1996-02-20 00:00:00

abstract：:Most kinases are capable of recognizing and phosphorylating peptides containing short, linear sequence motifs. To measure the activation state of many kinases from the same cell lysate, we created a multiplexed, mass-spectrometry-based in vitro kinase assay. Ninety chemically synthesized peptides derived from well-cha...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Yu Y,Anjum R,Kubota K,Rush J,Villen J,Gygi SP

更新日期：2009-07-14 00:00:00

abstract：:The acid-sensing ion channel 1a (ASIC1a) is abundantly expressed in the amygdala complex and other brain regions associated with fear. Studies of mice with a disrupted ASIC1 gene suggested that ASIC1a may contribute to learned fear. To test this hypothesis, we generated mice overexpressing human ASIC1a by using the pa...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wemmie JA,Coryell MW,Askwith CC,Lamani E,Leonard AS,Sigmund CD,Welsh MJ

更新日期：2004-03-09 00:00:00

abstract：:To successfully colonize the human gut, enteric bacteria must activate acid resistance systems to survive the extreme acidity (pH 1.5-3.5) of the stomach. The antiporter AdiC is the master orchestrator of the arginine-dependent system. Upon acid shock, it imports extracellular arginine (Arg) into the cytoplasm, provid...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Tsai MF,Miller C

更新日期：2013-04-09 00:00:00

abstract：:Estimation of evolutionary distances has always been a major issue in the study of molecular evolution because evolutionary distances are required for estimating the rate of evolution in a gene, the divergence dates between genes or organisms, and the relationships among genes or organisms. Other closely related issue...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gu X,Li WH

更新日期：1998-05-26 00:00:00

abstract：:We report the optical conductivity in high-quality crystals of the chiral topological semimetal CoSi, which hosts exotic quasiparticles known as multifold fermions. We find that the optical response is separated into several distinct regions as a function of frequency, each dominated by different types of quasiparticl...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Xu B,Fang Z,Sánchez-Martínez MÁ,Venderbos JWF,Ni Z,Qiu T,Manna K,Wang K,Paglione J,Bernhard C,Felser C,Mele EJ,Grushin AG,Rappe AM,Wu L

更新日期：2020-11-03 00:00:00

abstract：:The effect of pressure up to 175 kilobars on the electronic structure of three ferric hydroxamates and on ferrichrome A has been studied by optical absorption and Mössbauer resonance. The ferric ion was reduced to ferrous ion with pressure, as has been previously observed for various compounds. For the hydroxamates, t...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Grenoble DC,Drickamer HG

更新日期：1971-03-01 00:00:00

abstract：:Calcium, a universal second messenger, regulates diverse cellular processes in eukaryotes. Ca2+ and Ca2+/calmodulin-regulated protein phosphorylation play a pivotal role in amplifying and diversifying the action of Ca(2+)-binding domain was cloned and characterized from lily. The cDNA clone contains an open reading fr...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Patil S,Takezawa D,Poovaiah BW

更新日期：1995-05-23 00:00:00

abstract：:Friend murine leukemia virus (F-MuLV) is a replication-competent retrovirus that induces a rapidly fetal leukemia in susceptible mice (stage I disease). Leukemia cells obtained from these animals do not grow in cell culture using standard tissue culture conditions. However, in the presence of WEHI-3 cell-conditioned m...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Oliff A,Oliff I,Schmidt B,Famulari N

更新日期：1984-09-01 00:00:00

abstract：:The formation of myelin by Schwann cells (SCs) occurs via a series of orchestrated molecular events. We previously used global expression profiling to examine peripheral nerve myelination and identified the NAD(+)-dependent deacetylase Sir-two-homolog 2 (Sirt2) as a protein likely to be involved in myelination. Here, ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Beirowski B,Gustin J,Armour SM,Yamamoto H,Viader A,North BJ,Michán S,Baloh RH,Golden JP,Schmidt RE,Sinclair DA,Auwerx J,Milbrandt J

更新日期：2011-10-25 00:00:00

abstract：:Water-biomolecule interactions have been extensively studied in dilute solutions, crystals, and rehydrated powders, but none of these model systems may capture the behavior of water in the highly organized intracellular milieu. Because of the experimental difficulty of selectively probing the structure and dynamics of...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Persson E,Halle B

更新日期：2008-04-29 00:00:00

abstract：:We construct a C*-algebra that has only one irreducible representation up to unitary equivalence but is not isomorphic to the algebra of compact operators on any Hilbert space. This answers an old question of Naimark. Our construction uses a combinatorial statement called the diamond principle, which is known to be co...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Akemann C,Weaver N

更新日期：2004-05-18 00:00:00

abstract：:Glutamatergic synaptic terminals harbor reluctant synaptic vesicles (SVs) that contribute little to synchronous release during action potentials but are release competent when stimulated by sucrose or by direct intracellular application of calcium. It has been noted that the proximity of a release-competent SV to the ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Lee JS,Ho WK,Lee SH

更新日期：2012-03-27 00:00:00

abstract：:Human pluripotent stem cells have the potential to provide comprehensive model systems for the earliest stages of human ontogenesis. To serve in this capacity, these cells must undergo a targeted, stepwise differentiation process that follows a normal developmental timeline. Here we demonstrate the ability of both hum...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Meyer JS,Shearer RL,Capowski EE,Wright LS,Wallace KA,McMillan EL,Zhang SC,Gamm DM

更新日期：2009-09-29 00:00:00

abstract：:Lung cancers caused by activating mutations in the epidermal growth factor receptor (EGFR) are initially responsive to small molecule tyrosine kinase inhibitors (TKIs), but the efficacy of these agents is often limited because of the emergence of drug resistance conferred by a second mutation, T790M. Threonine 790 is ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Yun CH,Mengwasser KE,Toms AV,Woo MS,Greulich H,Wong KK,Meyerson M,Eck MJ

更新日期：2008-02-12 00:00:00

abstract：:Adult naive T cells, which are at rest in normal conditions, proliferate strongly when transferred to lymphopenic hosts. In neonates, the first mature thymocytes to migrate to the periphery reach a compartment devoid of preexisting T cells. We have extensively analyzed the proliferation rate and phenotype of periphera...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Le Campion A,Bourgeois C,Lambolez F,Martin B,Léaument S,Dautigny N,Tanchot C,Pénit C,Lucas B

更新日期：2002-04-02 00:00:00

abstract：:The use of probes to genes (IG and TCRB) encoding immunoglobulins (IG) and the beta chain of the T-cell antigen receptor (TCRB), respectively, have become a sensitive means to assess clonality and lineage in lymphoid malignancies. It has become apparent that some individual cases show rearrangements of both IG and TCR...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Davey MP,Bongiovanni KF,Kaulfersch W,Quertermous T,Seidman JG,Hershfield MS,Kurtzberg J,Haynes BF,Davis MM,Waldmann TA

更新日期：1986-11-01 00:00:00

abstract：:The "apoptotic ring" is characterized by the phosphorylation of histone H2AX at serine 139 (γ-H2AX) by DNA-dependent protein kinase (DNA-PK). The γ-H2AX apoptotic ring differs from the nuclear foci patterns observed in response to DNA-damaging agents. It contains phosphorylated DNA damage response proteins including a...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Solier S,Kohn KW,Scroggins B,Xu W,Trepel J,Neckers L,Pommier Y

更新日期：2012-08-07 00:00:00