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Jerusalem artichoke invertases—Immunocharacterization of a soluble form and its putative precursor

Identifieur interne : 000B49 ( Istex/Corpus ); précédent : 000B48; suivant : 000B50

Jerusalem artichoke invertases—Immunocharacterization of a soluble form and its putative precursor

Auteurs : P. Goupil ; Y. Croisille ; F. Croisille ; G. Ledoigt

Source :

RBID : ISTEX:4DCC6B1D18791F89D255959492976DB9B58FB89B

Abstract

Using AcA 22 Ultrogel immobilized anti-yeast invertase antibodies a soluble acid invertase (β D fructofuranoside fructohydrolase, EC 3.2.1.26), representing only part of the total acid invertase activity, has been purified from Helianthus tuberosus shoot extracts. Under denaturing conditions (SDS-PAGE) this enzyme usually yields a 58 kDa polypeptide. From one particular extract out of nine, however, a second acid invertase form, yielding essentially a 30 kDa polypeptide, was obtained. Furthermore, after in vitro translation of either polysomal RNA followed by immunoprecipitation, or mRNA isolated from previously immunoselected polysomes, a 97 kDa polypeptide which could be the precursor of both acid invertase forms was observed. The possible physiological significance of these observations is discussed.

Url:
DOI: 10.1016/0168-9452(88)90054-4

Links to Exploration step

ISTEX:4DCC6B1D18791F89D255959492976DB9B58FB89B

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<affiliation>Laboratoire de Biologie Animale — UA 677, Embryologie, Sexualité et Endocrinologie, Université Blaise Pascal (Clermont II), Complexe des Cézeaux, 24, avenue des Landais, 63170 Aubière France</affiliation>
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<affiliation>Laboratoire de Biologie Animale — UA 677, Embryologie, Sexualité et Endocrinologie, Université Blaise Pascal (Clermont II), Complexe des Cézeaux, 24, avenue des Landais, 63170 Aubière France</affiliation>
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<name type="personal">
<namePart type="given">G.</namePart>
<namePart type="family">Ledoigt</namePart>
<affiliation>To whom correspondence should be sent.</affiliation>
<affiliation>Laboratoire de Phytomorphogenèse — UA 45, Biologie Physiologie Végétales, Université Blaise Pascal (Clermont II), 4, rue Ledru, 63038 Clermont-Ferrand, France</affiliation>
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<dateIssued encoding="w3cdtf">1988</dateIssued>
<dateModified encoding="w3cdtf">1987-08-25</dateModified>
<copyrightDate encoding="w3cdtf">1988</copyrightDate>
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<abstract lang="en">Using AcA 22 Ultrogel immobilized anti-yeast invertase antibodies a soluble acid invertase (β D fructofuranoside fructohydrolase, EC 3.2.1.26), representing only part of the total acid invertase activity, has been purified from Helianthus tuberosus shoot extracts. Under denaturing conditions (SDS-PAGE) this enzyme usually yields a 58 kDa polypeptide. From one particular extract out of nine, however, a second acid invertase form, yielding essentially a 30 kDa polypeptide, was obtained. Furthermore, after in vitro translation of either polysomal RNA followed by immunoprecipitation, or mRNA isolated from previously immunoselected polysomes, a 97 kDa polypeptide which could be the precursor of both acid invertase forms was observed. The possible physiological significance of these observations is discussed.</abstract>
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<genre>Keywords</genre>
<topic>Helianthus</topic>
<topic>invertase</topic>
<topic>immunoselection</topic>
<topic>invertase biosynthesis</topic>
<topic>polysomes</topic>
</subject>
<subject>
<genre>Abbreviations</genre>
<topic>BSA, bovine serum albumin</topic>
<topic>Hepes, 4-(2-hydroxyethyl)-1-piperazineethanesulphonic acid</topic>
</subject>
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<title>Plant Science</title>
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<titleInfo type="abbreviated">
<title>PSL</title>
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<genre type="journal">journal</genre>
<originInfo>
<dateIssued encoding="w3cdtf">1988</dateIssued>
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<identifier type="ISSN">0168-9452</identifier>
<identifier type="PII">S0168-9452(00)X0164-1</identifier>
<part>
<date>1988</date>
<detail type="volume">
<number>54</number>
<caption>vol.</caption>
</detail>
<detail type="issue">
<number>1</number>
<caption>no.</caption>
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<extent unit="issue pages">
<start>1</start>
<end>91</end>
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<extent unit="pages">
<start>45</start>
<end>54</end>
</extent>
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<identifier type="istex">4DCC6B1D18791F89D255959492976DB9B58FB89B</identifier>
<identifier type="DOI">10.1016/0168-9452(88)90054-4</identifier>
<identifier type="PII">0168-9452(88)90054-4</identifier>
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