Titre du document / Document title

Cofactor requirement of ribosome-inactivating proteins from plants

Auteur(s) / Author(s)

CARNICELLI D. ⁽¹⁾ ; BRIGOTTI M. ⁽¹⁾ ; ALVERGNA P. ⁽¹⁾ ; PALLANCA A. ⁽¹⁾ ; SPERTI S. ⁽¹⁾ ; MONTANARO L. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Dipartimento di Patologia sperimentale dell'Università di Bologna, Via San Giacomo 14, 40126 Bologna, ITALIE

Résumé / Abstract

A large number of type 1 ribosome-inactivating proteins (RIPs) from plants (families of Caryophyllaceae, Cucurbitaceae, Euphorbiaceae, Phytolaccaceae, and Poaceae) were examined for their requirement for ATP and supernatant factors for full activity. A marked requirement was observed with agrostin among Caryophyllaceae, gelonin among Euphorbiaceae, and with both barley RIP and tritin-S among Poaceae. The distribution of cofactor requirement in Phytolaccaceae discriminates leaf forms (cofactor-independent) from seed and root forms (cofactor-dependent). The results are discussed on the basis of the present knowledge on the tissue localization of RIPs and on the sensitivity of ribosomes to conspecific RIPs.

Revue / Journal Title

Journal of experimental botany   ISSN 0022-0957   CODEN JEBOA6 

Source / Source

1997, vol. 48, n^o313, pp. 1519-1523 (28 ref.)

Langue / Language

Anglais

Editeur / Publisher

Oxford University Press, Oxford, ROYAUME-UNI  (1950) (Revue)

Mots-clés anglais / English Keywords

rRNA N-glycosidase ; Enzymatic activity ; Cofactor ; ATP ; Biological activity ; Antiviral ; Gramineae ; Phytolaccaceae ; Euphorbiaceae ; Cucurbitaceae ; Caryophyllaceae ; N-Glycosidases ; Glycosidases ; Hydrolases ; Enzyme ; Monocotyledones ; Angiospermae ; Spermatophyta ; Dicotyledones ;

Mots-clés français / French Keywords

rRNA N-glycosidase ; Activité enzymatique ; Cofacteur ; ATP ; Activité biologique ; Antiviral ; Gramineae ; Phytolaccaceae ; Euphorbiaceae ; Cucurbitaceae ; Caryophyllaceae ; N-Glycosidases ; Glycosidases ; Hydrolases ; Enzyme ; Monocotyledones ; Angiospermae ; Spermatophyta ; Dicotyledones ;

Mots-clés espagnols / Spanish Keywords

rRNA N-glycosidase ; Actividad enzimática ; Cofactor ; ATP ; Actividad biológica ; Antiviral ; Gramineae ; Phytolaccaceae ; Euphorbiaceae ; Cucurbitaceae ; Caryophyllaceae ; N-Glycosidases ; Glycosidases ; Hydrolases ; Enzima ; Monocotyledones ; Angiospermae ; Spermatophyta ; Dicotyledones ;

Localisation / Location

INIST-CNRS, Cote INIST : 6923, 35400006917414.0030