Identification and cloning of a second phytase gene (phyB) from Aspergillus niger (ficuum).

Abstract:

:An Aspergillus niger (ficuum) genomic DNA lambda EMBL3 library was probed with a 354-bp DNA fragment obtained by polymerase chain reaction of A. niger DNA with oligonucleotides based on partial amino acid sequence of a pH 2.5 optimum acid phosphatase. A clone containing a 1605 bp segment (phyB) encoding the 479 amino acid enzyme was isolated and found to contain four exons. Global alignment revealed 23.5% homology to Aspergillus niger phytase (PhyA); four regions of extensive homology were identified. Some of these regions may contain catalytic sites for phosphatase function.

authors

Ehrlich KC,Montalbano BG,Mullaney EJ,Dischinger HC Jr,Ullah AH

doi

10.1006/bbrc.1993.2008

subject

Has Abstract

pub_date

1993-08-31 00:00:00

pages

53-7

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(83)72008-5

journal_volume

195

pub_type

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