Cloning and expression of a second Aspergillus niger pectin lyase gene (pelA): Indications of a pectin lyase gene family in A. niger

Autor: Jaap Visser, M. A. Kusters Van Someren, J.A.M. Harmsen
Rok vydání: 1990
Předmět:
Zdroj: Current Genetics, 18, 161-166
Current Genetics 18 (1990)
ISSN: 1432-0983
0172-8083
DOI: 10.1007/bf00312604
Popis: Using the previously cloned Aspergillus niger N756 pectin lyase D gene as a probe, the corresponding pelD gene has been isolated from a genomic library of the loboratory strain A. niger N400. This gene encodes PLD, previously described as PLI, which is one of the two major pectin lyases isolated from the commeriial pectinase preparation Ultrazym®. Heterologous hybridization of the A. niger N400 genomic library with the pelD gene led to the isolation of another five genes: pelA, B, C, E, and F. These genes differ in their hybridization patterns with probes containing either the entire pelD gene, or 5′ or 3′ parts thereof. By partial sequencing, and expression in an A. niger transformant containing multiple copies of the pelA gene, we show that this gene, which hybridizes strongest with the pelD gene, encodes the other major pectin lyase from Ultrazym®, PLII.
Databáze: OpenAIRE