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  • Articles  (138)
  • Cloning, Molecular  (138)
  • 2020-2023
  • 2020-2020
  • 1995-1999  (66)
  • 1990-1994  (72)
  • 1965-1969
  • Computer Science  (138)
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  • Articles  (138)
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  • 1
    Publication Date: 1995-12-15
    Description: The rice Xa21 gene, which confers resistance to Xanthomonas oryzae pv. oryzae race 6, was isolated by positional cloning. Fifty transgenic rice plants carrying the cloned Xa21 gene display high levels of resistance to the pathogen. The sequence of the predicted protein, which carries both a leucine-rich repeat motif and a serine-threonine kinase-like domain, suggests a role in cell surface recognition of a pathogen ligand and subsequent activation of an intracellular defense response. Characterization of Xa21 should facilitate understanding of plant disease resistance and lead to engineered resistance in rice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, W Y -- Wang, G L -- Chen, L L -- Kim, H S -- Pi, L Y -- Holsten, T -- Gardner, J -- Wang, B -- Zhai, W X -- Zhu, L H -- Fauquet, C -- Ronald, P -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1804-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, University of California, Davis 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525370" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cloning, Molecular ; *Genes, Plant ; Genetic Linkage ; Molecular Sequence Data ; Oryza/enzymology/*genetics/microbiology ; Plant Diseases ; Plant Proteins/*genetics/metabolism ; Plants, Genetically Modified ; Protein-Serine-Threonine Kinases/*genetics/metabolism ; Receptor Protein-Tyrosine Kinases ; Receptors, Cell Surface/*genetics/metabolism ; Xanthomonas/physiology
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1990-06-08
    Description: X-linked Alport syndrome is a hereditary glomerulonephritis in which progressive loss of kidney function is often accompanied by progressive loss of hearing. Ultrastructural defects in glomerular basement membranes (GBM) of Alport syndrome patients implicate an altered structural protein as the cause of nephritis. The product of COL4A5, the alpha 5(IV) collagen chain, is a specific component of GBM within the kidney, and the gene maps to the same X chromosomal region as does Alport syndrome. Three structural aberrations were found in COL4A5, in intragenic deletion, a Pst I site variant, and an uncharacterized abnormality, which appear to cause nephritis and deafness, with allele-specific severity, in three Alport syndrome kindreds in Utah.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barker, D F -- Hostikka, S L -- Zhou, J -- Chow, L T -- Oliphant, A R -- Gerken, S C -- Gregory, M C -- Skolnick, M H -- Atkin, C L -- Tryggvason, K -- DK 36200/DK/NIDDK NIH HHS/ -- DK 39497/DK/NIDDK NIH HHS/ -- M01 RR 00064/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1990 Jun 8;248(4960):1224-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Informatics, University of Utah School of Medicine, Salt Lake City 84132.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2349482" target="_blank"〉PubMed〈/a〉
    Keywords: Blotting, Southern ; Cloning, Molecular ; Collagen/*genetics ; DNA/genetics/isolation & purification ; Exons ; Female ; *Genes ; Humans ; Male ; Molecular Weight ; *Mutation ; Nephritis, Hereditary/*genetics ; Pedigree ; Restriction Mapping ; X Chromosome
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 1991-10-04
    Description: LIV-I, a high-affinity system that transports neutral, branched-chain amino acids into Escherichia coli, has two components, LivG and LivF, that are homologous to the cystic fibrosis (CF) transmembrane conductance regulator (CFTR). CF-associated mutations of human CFTR were introduced into corresponding regions of LivG, and their effects on leucine transport could be grouped into three classes. Mutations were found that (i) abolished LIV-I--directed transport, (ii) retained about a quarter of wild-type activity at the Michaelis-Menten constant (KM), and (iii) had minimal activity at the KM. A mutation equivalent to a benign polymorphism had no effect on transport. The correlation of these mutational phenotypes in LivG and CFTR suggests that the LIV-I prokaryotic transporter is functionally similar to the CF protein and that this similarity can be exploited to clarify the properties of the nucleotide-binding fold in this superfamily of proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibson, A L -- Wagner, L M -- Collins, F S -- Oxender, D L -- New York, N.Y. -- Science. 1991 Oct 4;254(5028):109-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, University of Michigan, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1718037" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Bacterial Proteins/*genetics ; Biological Transport, Active ; Cloning, Molecular ; Cystic Fibrosis/*genetics ; Cystic Fibrosis Transmembrane Conductance Regulator ; DNA Mutational Analysis ; Escherichia coli/genetics ; *Escherichia coli Proteins ; Humans ; Kinetics ; Leucine/metabolism ; Membrane Proteins/*genetics ; *Membrane Transport Proteins ; Molecular Sequence Data ; Protein Binding ; Restriction Mapping ; Sequence Alignment ; Structure-Activity Relationship
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 1992-05-08
    Description: Voltage-sensitive sodium channels are responsible for the initiation and propagation of the action potential and therefore are important for neuronal excitability. Complementary DNA clones encoding the beta 1 subunit of the rat brain sodium channel were isolated by a combination of polymerase chain reaction and library screening techniques. The deduced primary structure indicates that the beta 1 subunit is a 22,851-dalton protein that contains a single putative transmembrane domain and four potential extracellular N-linked glycosylation sites, consistent with biochemical data. Northern blot analysis reveals a 1,400-nucleotide messenger RNA in rat brain, heart, skeletal muscle, and spinal cord. Coexpression of beta 1 subunits with alpha subunits increases the size of the peak sodium current, accelerates its inactivation, and shifts the voltage dependence of inactivation to more negative membrane potentials. These results indicate that the beta 1 subunit is crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the rat brain sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Isom, L L -- De Jongh, K S -- Patton, D E -- Reber, B F -- Offord, J -- Charbonneau, H -- Walsh, K -- Goldin, A L -- Catterall, W A -- NS15751/NS/NINDS NIH HHS/ -- NS25704/NS/NINDS NIH HHS/ -- NS26729/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 May 8;256(5058):839-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1375395" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Brain/*physiology ; Cloning, Molecular ; DNA/genetics/isolation & purification ; Female ; Kinetics ; Macromolecular Substances ; Membrane Potentials ; Molecular Sequence Data ; Oocytes/physiology ; Polymerase Chain Reaction/methods ; Protein Conformation ; RNA/genetics/isolation & purification ; RNA, Messenger/genetics ; Rats ; Sodium Channels/*genetics/*physiology ; Voltage-Gated Sodium Channel beta-1 Subunit ; Xenopus
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 1996-07-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, S L -- Rodrigo, A G -- Shankarappa, R -- Learn, G H -- Hsu, L -- Davidov, O -- Zhao, L P -- Mullins, J I -- New York, N.Y. -- Science. 1996 Jul 26;273(5274):415-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8677432" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; DNA, Viral/genetics ; *Genetic Variation ; HIV/classification/*genetics ; Humans ; Leukocytes, Mononuclear/virology ; Polymerase Chain Reaction ; Probability ; Sample Size ; Sequence Analysis, DNA
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  • 6
    Publication Date: 1996-07-26
    Description: Random phage display peptide libraries and affinity selective methods were used to isolate small peptides that bind to and activate the receptor for the cytokine erythropoietin (EPO). In a panel of in vitro biological assays, the peptides act as full agonists and they can also stimulate erythropoiesis in mice. These agonists are represented by a 14- amino acid disulfide-bonded, cyclic peptide with the minimum consensus sequence YXCXXGPXTWXCXP, where X represents positions allowing occupation by several amino acids. The amino acid sequences of these peptides are not found in the primary sequence of EPO. The signaling pathways activated by these peptides appear to be identical to those induced by the natural ligand. This discovery may form the basis for the design of small molecule mimetics of EPO.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wrighton, N C -- Farrell, F X -- Chang, R -- Kashyap, A K -- Barbone, F P -- Mulcahy, L S -- Johnson, D L -- Barrett, R W -- Jolliffe, L K -- Dower, W J -- New York, N.Y. -- Science. 1996 Jul 26;273(5274):458-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Affymax Research Institute, 4001 Miranda Avenue, Palo Alto, CA 94304, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662529" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bacteriophages ; Cell Division/drug effects ; Cell Line ; Cloning, Molecular ; Erythropoiesis/drug effects ; Erythropoietin/chemistry/*metabolism/*pharmacology ; Humans ; Ligands ; Mice ; *Molecular Mimicry ; Molecular Sequence Data ; Mutagenesis ; Peptides, Cyclic/chemistry/*metabolism/*pharmacology ; Phosphorylation ; Protein Structure, Secondary ; Receptors, Erythropoietin/*agonists/chemistry/*metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Signal Transduction ; Solubility ; Tyrosine/metabolism
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  • 7
    Publication Date: 1996-06-14
    Description: The basal cell nevus syndrome (BCNS) is characterized by developmental abnormalities and by the postnatal occurrence of cancers, especially basal cell carcinomas (BCCs), the most common human cancer. Heritable mutations in BCNS patients and a somatic mutation in a sporadic BCC were identified in a human homolog of the Drosophila patched (ptc) gene. The ptc gene encodes a transmembrane protein that in Drosophila acts in opposition to the Hedgehog signaling protein, controlling cell fates, patterning, and growth in numerous tissues. The human PTC gene appears to be crucial for proper embryonic development and for tumor suppression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, R L -- Rothman, A L -- Xie, J -- Goodrich, L V -- Bare, J W -- Bonifas, J M -- Quinn, A G -- Myers, R M -- Cox, D R -- Epstein, E H Jr -- Scott, M P -- AR3995/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jun 14;272(5268):1668-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Howard Hughes Medical Institute, Stanford University School of Medicine, California 94305-5427, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8658145" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Animals ; Basal Cell Nevus Syndrome/*genetics ; Base Sequence ; Cloning, Molecular ; DNA, Neoplasm ; Drosophila ; *Drosophila Proteins ; Female ; Frameshift Mutation ; *Genes, Tumor Suppressor ; Humans ; Insect Hormones/genetics ; Male ; Membrane Proteins/*genetics ; Middle Aged ; Molecular Sequence Data ; Polymerase Chain Reaction ; Polymorphism, Single-Stranded Conformational ; Protein Conformation ; Receptors, Cell Surface
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  • 8
    Publication Date: 1994-04-15
    Description: The first step in oral absorption of many medically important peptide-based drugs is mediated by an intestinal proton-dependent peptide transporter. This transporter facilitates the oral absorption of beta-lactam antibiotics and angiotensin-converting enzyme inhibitors from the intestine into enterocytes lining the luminal wall. A monoclonal antibody that blocked uptake of cephalexin was used to identify and clone a gene that encodes an approximately 92-kilodalton membrane protein that was associated with the acquisition of peptide transport activity by transport-deficient cells. The amino acid sequence deduced from the complementary DNA sequence of the cloned gene indicated that this transport-associated protein shares several conserved structural elements with the cadherin superfamily of calcium-dependent, cell-cell adhesion proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dantzig, A H -- Hoskins, J A -- Tabas, L B -- Bright, S -- Shepard, R L -- Jenkins, I L -- Duckworth, D C -- Sportsman, J R -- Mackensen, D -- Rosteck, P R Jr -- New York, N.Y. -- Science. 1994 Apr 15;264(5157):430-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8153632" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Transport ; CHO Cells ; Cadherins/*chemistry ; Carrier Proteins/*chemistry/genetics/isolation & purification/metabolism ; Cephalexin/*metabolism ; Cloning, Molecular ; Cricetinae ; Glycosylation ; Humans ; Hydrogen-Ion Concentration ; Intestinal Mucosa/*metabolism ; Leucine/analogs & derivatives/metabolism ; *Membrane Transport Proteins ; Mice ; Mice, Inbred A ; Molecular Sequence Data ; Open Reading Frames ; Sequence Homology, Amino Acid ; Transfection ; Tumor Cells, Cultured
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  • 9
    Publication Date: 1999-06-05
    Description: We purified, cloned, and expressed aggrecanase, a protease that is thought to be responsible for the degradation of cartilage aggrecan in arthritic diseases. Aggrecanase-1 [a disintegrin and metalloproteinase with thrombospondin motifs-4 (ADAMTS-4)] is a member of the ADAMTS protein family that cleaves aggrecan at the glutamic acid-373-alanine-374 bond. The identification of this protease provides a specific target for the development of therapeutics to prevent cartilage degradation in arthritis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tortorella, M D -- Burn, T C -- Pratta, M A -- Abbaszade, I -- Hollis, J M -- Liu, R -- Rosenfeld, S A -- Copeland, R A -- Decicco, C P -- Wynn, R -- Rockwell, A -- Yang, F -- Duke, J L -- Solomon, K -- George, H -- Bruckner, R -- Nagase, H -- Itoh, Y -- Ellis, D M -- Ross, H -- Wiswall, B H -- Murphy, K -- Hillman, M C Jr -- Hollis, G F -- Newton, R C -- Magolda, R L -- Trzaskos, J M -- Arner, E C -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1664-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Inflammatory Diseases Research, DuPont Pharmaceuticals Company, Wilmington, DE 19880-0400, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10356395" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins ; Aggrecans ; Amino Acid Sequence ; Arthritis/drug therapy ; Cartilage/metabolism ; Catalytic Domain ; Cloning, Molecular ; Disintegrins/chemistry/metabolism ; *Extracellular Matrix Proteins ; Humans ; Hydroxamic Acids/pharmacology ; Interleukin-1/pharmacology ; Lectins, C-Type ; Metalloendopeptidases/*chemistry/*genetics/isolation & purification/metabolism ; Molecular Sequence Data ; Procollagen N-Endopeptidase ; Protease Inhibitors/pharmacology ; Protein Sorting Signals ; Proteoglycans/metabolism ; Recombinant Proteins/chemistry/metabolism ; Sequence Analysis
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  • 10
    Publication Date: 1999-06-26
    Description: Motilin is a 22-amino acid peptide hormone expressed throughout the gastrointestinal (GI) tract of humans and other species. It affects gastric motility by stimulating interdigestive antrum and duodenal contractions. A heterotrimeric guanosine triphosphate-binding protein (G protein)-coupled receptor for motilin was isolated from human stomach, and its amino acid sequence was found to be 52 percent identical to the human receptor for growth hormone secretagogues. The macrolide antibiotic erythromycin also interacted with the cloned motilin receptor, providing a molecular basis for its effects on the human GI tract. The motilin receptor is expressed in enteric neurons of the human duodenum and colon. Development of motilin receptor agonists and antagonists may be useful in the treatment of multiple disorders of GI motility.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feighner, S D -- Tan, C P -- McKee, K K -- Palyha, O C -- Hreniuk, D L -- Pong, S S -- Austin, C P -- Figueroa, D -- MacNeil, D -- Cascieri, M A -- Nargund, R -- Bakshi, R -- Abramovitz, M -- Stocco, R -- Kargman, S -- O'Neill, G -- Van Der Ploeg, L H -- Evans, J -- Patchett, A A -- Smith, R G -- Howard, A D -- New York, N.Y. -- Science. 1999 Jun 25;284(5423):2184-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Metabolic Disorders, Department of Medicinal Chemistry, Merck Research Laboratories, Building RY-80Y-265, 126 East Lincoln Avenue, Rahway, NJ 07065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10381885" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; Base Sequence ; Binding Sites ; Calcium/metabolism ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 13 ; Cloning, Molecular ; Colon/*metabolism ; Erythromycin/metabolism ; GTP-Binding Proteins/metabolism ; Humans ; In Situ Hybridization ; Intestine, Small/*metabolism ; Ligands ; Molecular Sequence Data ; Motilin/analogs & derivatives/*metabolism ; Receptors, Gastrointestinal Hormone/*chemistry/*genetics/metabolism ; Receptors, Neuropeptide/*chemistry/*genetics/metabolism ; Stomach/*metabolism ; Thyroid Gland/metabolism ; Transfection
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