Functional protein CxrD and coding gene and application thereof

The invention discloses a functional protein CxrD as well as a coding gene and application thereof. The functional protein CxrD disclosed by the invention is derived from a Penicillium oxalicum strain HP7-1, the sequence of the functional protein CxrD is a sequence 1 in a sequence table, and the coding gene of the functional protein CxrD is a sequence 2 in the sequence table. Under solid state fermentation, the functional protein CxrD plays a key role in the expression regulation process of a cellulase gene and a xylanase gene, has application potential in improving the yield of cellulase and xylanase, and can also improve the biomass of penicillium oxalicum. 本发明公开了功能蛋白CxrD及其编码基因与应用。本发明公开的功能蛋白CxrD，来源于草酸青霉(Penicillium oxalicum)菌株HP7-1，其序列为序列表中序列1，CxrD编码基因为序列表中序列2。在固态发酵下，本发明的功能蛋白CxrD在纤维素酶基因和木聚糖酶基因的表达调控过程中起到关键作用，在提高纤维素酶和木聚糖酶产量中具有应用潜力，另外还可以提到草酸青霉的生物量。