Q12550XYN4_ASPNGEndo-1,4-beta-xylanase 4Xylanase 43.2.1.81,4-beta-D-xylan xylanohydrolase 4XYN4Aspergillus nigerEukaryotaFungiDikaryaAscomycotaPezizomycotinaEurotiomycetesEurotiomycetidaeEurotialesAspergillaceaeAspergillusAspergillus subgen. CircumdatiCloning of two beta-xylanase-encoding genes from Aspergillus niger and their expression in Saccharomyces cerevisiae.NUCLEOTIDE SEQUENCE [MRNA]FUNCTIONBIOPHYSICOCHEMICAL PROPERTIESEndo-1,4-beta-xylanase involved in the hydrolysis of xylan, a major structural heterogeneous polysaccharide found in plant biomass representing the second most abundant polysaccharide in the biosphere, after cellulose.Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans.Optimum pH is 4.0.Optimum temperature is 60 degrees Celsius.Glycan degradation; xylan degradation.SecretedBelongs to the glycosyl hydrolase 11 (cellulase G) family.Carbohydrate metabolismGlycoproteinGlycosidaseHydrolasePolysaccharide degradationSecretedSignalXylan degradationMKVTAAFAGLLVTAFAPPVPEPVLVSRSAGINYVQNYNGNLGDFTYDESAGTFSMYWEDGVSSDFVVGLGWTTGSSNAITYSAEYSASGSSSYLAVYGWVNLSQAEYYIVEDYGDYNPCSSATSLGTEYSDGSTYQVCTDTRTNEPSITGTSTFTQYFSVRESTRTSGTVTVAIHFNFWAQHGFGNSDFNYQVMAVEAWSGACSASVTISS
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