Patent ID: 8524483
Filing Date: 2013-09-03
Classification: C12J,C12N,C12P

Abstract:
1. A method for enhancing the acetic acid fermentation ability of an acetic acid bacterium belonging to the genus Acetobacter or the genus Gluconacetobacter , wherein the function of one or two proteins which are encoded by the genes involved in the quorum-sensing system in the acetic acid bacterium belonging to the genus Acetobacter or the genus Gluconacetobacter is reduced or deleted, wherein the gene involved in the quorum-sensing system is a gene encoding: (A) a protein consisting of the amino acid sequence of SEQ ID NO: 2; or (B) a protein which consists of an amino acid sequence having at least 90% or more identity to the amino acid sequence of SEQ ID NO: 2, and which has the activity of an acyl homoserine lactone synthase, or a gene encoding: (A) a protein consisting of the amino acid sequence of SEQ ID NO: 3; or (B) a protein which consists of an amino acid sequence having at least 90% or more identity to the amino acid sequence of SEQ ID NO: 3, and which has the function as an acyl homoserine lactone receptor-type transcription factor.