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  • Phylogeny  (3)
  • American Association for the Advancement of Science (AAAS)  (3)
  • 2000-2004  (3)
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Publisher
  • American Association for the Advancement of Science (AAAS)  (3)
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  • 1
    Publication Date: 2002-12-14
    Description: The first chordates appear in the fossil record at the time of the Cambrian explosion, nearly 550 million years ago. The modern ascidian tadpole represents a plausible approximation to these ancestral chordates. To illuminate the origins of chordate and vertebrates, we generated a draft of the protein-coding portion of the genome of the most studied ascidian, Ciona intestinalis. The Ciona genome contains approximately 16,000 protein-coding genes, similar to the number in other invertebrates, but only half that found in vertebrates. Vertebrate gene families are typically found in simplified form in Ciona, suggesting that ascidians contain the basic ancestral complement of genes involved in cell signaling and development. The ascidian genome has also acquired a number of lineage-specific innovations, including a group of genes engaged in cellulose metabolism that are related to those in bacteria and fungi.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dehal, Paramvir -- Satou, Yutaka -- Campbell, Robert K -- Chapman, Jarrod -- Degnan, Bernard -- De Tomaso, Anthony -- Davidson, Brad -- Di Gregorio, Anna -- Gelpke, Maarten -- Goodstein, David M -- Harafuji, Naoe -- Hastings, Kenneth E M -- Ho, Isaac -- Hotta, Kohji -- Huang, Wayne -- Kawashima, Takeshi -- Lemaire, Patrick -- Martinez, Diego -- Meinertzhagen, Ian A -- Necula, Simona -- Nonaka, Masaru -- Putnam, Nik -- Rash, Sam -- Saiga, Hidetoshi -- Satake, Masanobu -- Terry, Astrid -- Yamada, Lixy -- Wang, Hong-Gang -- Awazu, Satoko -- Azumi, Kaoru -- Boore, Jeffrey -- Branno, Margherita -- Chin-Bow, Stephen -- DeSantis, Rosaria -- Doyle, Sharon -- Francino, Pilar -- Keys, David N -- Haga, Shinobu -- Hayashi, Hiroko -- Hino, Kyosuke -- Imai, Kaoru S -- Inaba, Kazuo -- Kano, Shungo -- Kobayashi, Kenji -- Kobayashi, Mari -- Lee, Byung-In -- Makabe, Kazuhiro W -- Manohar, Chitra -- Matassi, Giorgio -- Medina, Monica -- Mochizuki, Yasuaki -- Mount, Steve -- Morishita, Tomomi -- Miura, Sachiko -- Nakayama, Akie -- Nishizaka, Satoko -- Nomoto, Hisayo -- Ohta, Fumiko -- Oishi, Kazuko -- Rigoutsos, Isidore -- Sano, Masako -- Sasaki, Akane -- Sasakura, Yasunori -- Shoguchi, Eiichi -- Shin-i, Tadasu -- Spagnuolo, Antoinetta -- Stainier, Didier -- Suzuki, Miho M -- Tassy, Olivier -- Takatori, Naohito -- Tokuoka, Miki -- Yagi, Kasumi -- Yoshizaki, Fumiko -- Wada, Shuichi -- Zhang, Cindy -- Hyatt, P Douglas -- Larimer, Frank -- Detter, Chris -- Doggett, Norman -- Glavina, Tijana -- Hawkins, Trevor -- Richardson, Paul -- Lucas, Susan -- Kohara, Yuji -- Levine, Michael -- Satoh, Nori -- Rokhsar, Daniel S -- HD-37105/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2002 Dec 13;298(5601):2157-67.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Department of Energy Joint Genome Institute, 2800 Mitchell Drive, Walnut Creek, CA 94598, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12481130" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Apoptosis ; Base Sequence ; Cellulose/metabolism ; Central Nervous System/physiology ; Ciona intestinalis/anatomy & histology/classification/*genetics/physiology ; Computational Biology ; Endocrine System/physiology ; Gene Dosage ; Gene Duplication ; Genes ; Genes, Homeobox ; *Genome ; Heart/embryology/physiology ; Immunity/genetics ; Molecular Sequence Data ; Multigene Family ; Muscle Proteins/genetics ; Organizers, Embryonic/physiology ; Phylogeny ; Polymorphism, Genetic ; Proteins/genetics/physiology ; *Sequence Analysis, DNA ; Sequence Homology, Nucleic Acid ; Species Specificity ; Thyroid Gland/physiology ; Urochordata/genetics ; Vertebrates/anatomy & histology/classification/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2000-02-26
    Description: Most aerobic bacteria secrete siderophores to facilitate iron acquisition. Two families of siderophores were isolated from strains belonging to two different genera of marine bacteria. The aquachelins, from Halomonas aquamarina strain DS40M3, and the marinobactins, from Marinobacter sp. strains DS40M6 and DS40M8, each contain a unique peptidic head group that coordinates iron(III) and an appendage of one of a series of fatty acid moieties. These siderophores have low critical micelle concentrations (CMCs). In the absence of iron, the marinobactins are present as micelles at concentrations exceeding their CMC; upon addition of iron(III), the micelles undergo a spontaneous phase change to form vesicles. These observations suggest that unique iron acquisition mechanisms may have evolved in marine bacteria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martinez, J S -- Zhang, G P -- Holt, P D -- Jung, H T -- Carrano, C J -- Haygood, M G -- Butler, A -- GM38130/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Feb 18;287(5456):1245-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10678827" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/analysis ; Chemistry, Physical ; Cryoelectron Microscopy ; Evolution, Molecular ; Fatty Acids/analysis ; Ferric Compounds/metabolism ; Gammaproteobacteria/*chemistry/isolation & purification/metabolism ; Halomonas/*chemistry/isolation & purification/metabolism ; Light ; Micelles ; Phylogeny ; Physicochemical Phenomena ; Scattering, Radiation ; Seawater/microbiology ; Siderophores/*chemistry/isolation & purification/metabolism ; Surface Properties
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2002-12-10
    Description: We have catalogued the protein kinase complement of the human genome (the "kinome") using public and proprietary genomic, complementary DNA, and expressed sequence tag (EST) sequences. This provides a starting point for comprehensive analysis of protein phosphorylation in normal and disease states, as well as a detailed view of the current state of human genome analysis through a focus on one large gene family. We identify 518 putative protein kinase genes, of which 71 have not previously been reported or described as kinases, and we extend or correct the protein sequences of 56 more kinases. New genes include members of well-studied families as well as previously unidentified families, some of which are conserved in model organisms. Classification and comparison with model organism kinomes identified orthologous groups and highlighted expansions specific to human and other lineages. We also identified 106 protein kinase pseudogenes. Chromosomal mapping revealed several small clusters of kinase genes and revealed that 244 kinases map to disease loci or cancer amplicons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manning, G -- Whyte, D B -- Martinez, R -- Hunter, T -- Sudarsanam, S -- New York, N.Y. -- Science. 2002 Dec 6;298(5600):1912-34.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉SUGEN Inc., 230 East Grand Avenue, South San Francisco, CA 94080, USA. gerard-manning@sugen.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12471243" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catalysis ; Chromosome Mapping ; Computational Biology ; Databases, Genetic ; Genes ; *Genome, Human ; Humans ; Neoplasms/genetics ; Phylogeny ; Protein Kinases/chemistry/classification/*genetics/*metabolism ; Protein Structure, Tertiary ; Pseudogenes ; Sequence Analysis, DNA ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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