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Eng1p, an Endo-1,3-β-Glucanase Localized at the Daughter Side of the Septum, Is Involved in Cell Separation in Saccharomyces cerevisiae

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dc.creator Baladrón, Victoriano
dc.creator Ufano, Sandra
dc.creator Dueñas, Encarnación
dc.creator Martín-Cuadrado, Ana Belén
dc.creator Rey Iglesias, Francisco del
dc.creator Vázquez de Aldana, Carlos R.
dc.date 2008-06-18T09:50:58Z
dc.date 2008-06-18T09:50:58Z
dc.date 2002-10
dc.date.accessioned 2017-01-31T01:43:13Z
dc.date.available 2017-01-31T01:43:13Z
dc.identifier Eukaryot Cell 1(5): 774–786 (2002)
dc.identifier 1535-9778
dc.identifier http://hdl.handle.net/10261/5161
dc.identifier 10.1128/EC.1.5.774-786.2002
dc.identifier 1535-9786
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5161
dc.description ENG1 (YNR067c), a gene encoding a new endo-1,3-β-glucanase, was cloned by screening a genomic library with a DNA probe obtained by PCR with synthetic oligonucleotides designed according to conserved regions found between yeast exo-1,3-β-glucanases (Exg1p, Exg2p, and Ssg1p). Eng1p shows strong sequence similarity to the product of the Saccharomyces cerevisiae ACF2 gene, involved in actin assembly “in vitro,” and to proteins present in other yeast and fungal species. It is also related to plant glucan-binding elicitor proteins, which trigger the onset of a defense response upon fungal infection. Eng1p and Acf2p/Eng2p are glucan-hydrolyzing proteins that specifically act on 1,3-β linkages, with an endolytic mode of action. Eng1p is an extracellular, heavily glycosylated protein, while Acf2p/Eng2p is an intracellular protein with no carbohydrate linked by N-glycosidic bonds. ENG1 transcription fluctuates periodically during the cell cycle; maximal accumulation occurs during the M/G1 transition and is dependent on the transcription factor Ace2p. Interestingly, eng1 deletion mutants show defects in cell separation, and Eng1p localizes asymmetrically to the daughter side of the septum, suggesting that this protein is involved, together with chitinase, in the dissolution of the mother-daughter septum.
dc.description This research was supported by grants from the Comisión Interministerial de Ciencia y Tecnología (1FD97-1897-C02-02 and BIO2000-1573) and from the European Community (QKL3-2000-01537). V. Baladrón and S. Ufano were recipients of a fellowship from the Ministerio de Educación y Ciencia (Spain), and A. B. Martín was the recipient of a fellowship from the Ministerio de Ciencia y Tecnología (Spain).
dc.description Peer reviewed
dc.format 25053 bytes
dc.format application/pdf
dc.language eng
dc.publisher American Society for Microbiology
dc.relation http://dx.doi.org/10.1128/EC.1.5.774-786.2002
dc.rights closedAccess
dc.title Eng1p, an Endo-1,3-β-Glucanase Localized at the Daughter Side of the Septum, Is Involved in Cell Separation in Saccharomyces cerevisiae
dc.type Artículo

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