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Mapping the primary structure of copper/topaquinone-containing methylamine oxidase from Aspergillus niger

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F05%3A00002191" target="_blank" >RIV/61989592:15310/05:00002191 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mapping the primary structure of copper/topaquinone-containing methylamine oxidase from Aspergillus niger

  • Original language description

    The amino acid sequence of methylamine oxidase (MeAO) from the fungus Aspergillus niger was analyzed using mass spectrometry (MS). First, MeAO was characterized by an accurate molecular mass of 72.4 kDa of the monomer measured using MALDI-TOF-MS and by apI value of 5.8 determined by isoelectric focusing. MALDI-TOF-MS revealed a clear peptide mass fingerprint after tryptic digestion, which did not provide any relevant hit when searched against a nonredundant protein database and was different from thatof A. niger amine oxidase AO-I. Tandem mass spectrometry with electrospray ionization coupled to liquid chromatography allowed unambiguous reading of six peptide sequences (11-19 amino acids) and seven sequence tags (4-15 amino acids), which were used for MS BLAST homology searching. MeAO was found to be largely homologous to a hypothetical protein AN7641.2 (EMBL/GenBank protein accession code EAA61827) from Aspergillus nidulans FGSC A4 with a theoretical molecular mass of 76 460 Da and

  • Czech name

    Mapování primární struktury methylaminoxidasy z Aspergillus niger obsahující topachinon a měď

  • Czech description

    Aminokyselinová sekvence methylaminoxidasy izolované z plísně Aspergillus niger byla analyzována různými MS technikami. MALDI-MS umožnila stanovení přesné hmoty monomeru o velikosti 72,4 kDa. Isoelektrický bod byl určen pomocí isoelektrické fokusace. Peptidové mapování pomocí MALDI-MS ukázalo, že sekvence methylaminoxidasy se výrazně liší od sekvence aminoxidasy AO-I. Částečná sekvence vyizolované methylaminoxidasy byla určena pomocí konbinace přístupu MALDI-PSD-MS a nanoLC-ESI-MSMS a s využitím MS BLAST softwaru pro hledání homologie podle zadaných peptidových sekvencí proteinu. V databázi byl nalezen homologní hypotetický protein AN7641.2 (EMBL/GenBank protein-accession code EAA61827) z Aspergillus nidulans FGSC A4 o teoretické molekulové hmotnosti 76.46 kDa a pI 6.14, ktery patří do skupiny aminoxidas obsahujících měď. Tento protein vykazuje pouze malou homologii k aminooxidase AO-I (32 % identity, 49 % podobnost).

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CE - Biochemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/ME%20664" target="_blank" >ME 664: Conjugates of proteolythic enzyms in highly outputable proteomic.</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Folia Microbiologica

  • ISSN

    0015-5632

  • e-ISSN

  • Volume of the periodical

    50

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    8

  • Pages from-to

    401-408

  • UT code for WoS article

  • EID of the result in the Scopus database