The acetyl xylan esterase II gene from Penicillium purpurogenum is differentially expressed in several carbon sources, and tightly regulated by pH

http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000100011&lng=es&nrm=isoThe expression of the acetyl xylan esterase II (axeII) gene from Penicillium purpurogenum is repressed by glucose and induced by xylan, as well as to a small degree by xylose and xylitol. This gene is expressed at neutral pH, but not under alkaline or acidic conditions, in agreement with previous findings for other xylanolytic genes of this organism. This is the first report showing pH regulation of an axe gene

Geografía y destino de Chile

Un periodista agudo, Tibor Mende, ha querido subrayar a través de una leyenda, la singular complejidad geográfica de Chile..

Tyrosine Activation and Transfer to Soluble Ribonucleic Acid

132 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1963.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD