Cloning, characterization and functional expression of an endoglucanase-encoding gene from the phytopathogenic fungus Macrophomina phaseolina.
Gene
; 158(1): 125-8, 1995 May 26.
Article
en En
| MEDLINE
| ID: mdl-7789795
ABSTRACT
An endoglucanase-encoding clone (egl2) was isolated from the phytopathogenic soilborne deuteromycete fungus Macrophomina phaseolina (Mp). Clones were obtained from a cDNA library by functional expression in Escherichia coli. The egl2 clone hybridized to a 1.3-kb mRNA. Expression is induced by carboxymethylcellulose (CMC) and repressed by glucose. The deduced amino acid (aa) sequence revealed strong similarity to the egl3 from Trichoderma reesei (Tr) (72% for identical residues and 81% with conservative substitution over a span of 324 aa). The Mp egl2 lacks the cellulose-binding domain and linker region found in the Tr egl3. Different codon usage between the two fungi resulted in a much shorter span of nucleotide homology. The Egl2 protein cleaves cellodextrins with continguous beta, 1-4 linkages of four and larger, and shows activity against CMC and birchwood xylan.
Buscar en Google
Banco de datos:
MEDLINE
Asunto principal:
Celulasa
/
Hongos Mitospóricos
Idioma:
En
Revista:
Gene
Año:
1995
Tipo del documento:
Article
País de afiliación:
Estados Unidos