Q9UUZ3MANBA_ASPNGBeta-mannosidase A3.2.1.25Mannanase AMannase AmndAAspergillus nigerEukaryotaFungiDikaryaAscomycotaPezizomycotinaEurotiomycetesEurotiomycetidaeEurotialesAspergillaceaeAspergillusAspergillus subgen. CircumdatiCloning and characterization of Aspergillus niger genes encoding an alpha-galactosidase and a beta-mannosidase involved in galactomannan degradation.NUCLEOTIDE SEQUENCE [GENOMIC DNA]FUNCTIONCATALYTIC ACTIVITYHydrolytic properties of a beta-mannosidase purified from Aspergillus niger.PROTEIN SEQUENCE OF 490-504BIOPHYSICOCHEMICAL PROPERTIESSUBCELLULAR LOCATIONSUBUNITGLYCOSYLATIONPhylogenetic analysis and substrate specificity of GH2 beta-mannosidases from Aspergillus species.FUNCTIONSUBSTRATE SPECIFICITYExoglycosidase that cleaves the single beta-linked mannose residue from the non-reducing end of beta-mannosidic oligosaccharides of various complexity and length. Involved in the degradation of polymeric mannan and galactomannan. Releases the terminal mannose residue from mannobiose and mannotriose, as well as from galactosyl-mannobiose (GM2), galactosyl-mannotriose (GM3) and di-galactosyl-mannopentaose (G2M5).Hydrolysis of terminal, non-reducing beta-D-mannose residues in beta-D-mannosides.0.3 mM for p-nitrophenyl-beta-mannopyranosidekcat is 4048 min(-1) with p-nitrophenyl-beta-mannopyranoside as substrate.Optimum pH is 2.5-5.Optimum temperature is 70 degrees Celsius.Glycan metabolism; N-glycan degradation.Homodimer.SecretedN-glycosylated.Belongs to the glycosyl hydrolase 2 family. Beta-mannosidase A subfamily.Direct protein sequencingGlycoproteinGlycosidaseHydrolaseSecretedSignalMRHSIGLAAALLAPTLPVALGQHIRDLSSEKWTLSSRALNRTVPAQFPSQVHLDLLRAGVIGEYHGLNDFNLRWIAAANWTYTSQPIKGLLDNYGSTWLVFDGLDTFATISILWTANRIHGQSVSPVSGSMYLPALEACQRRILIRKVSFRGGVTAEVNTCYLHIEWPDDVQLTYEYPNRWFMRKEQSDFGWDWGPAFAPAGPWKPAYIVQLDKKESVYVLNTDLDIYRKNQINYLPPDQSQPWVVNASIDILGPLPAKPTMSIEVRDTHSGTILTSRTLNNVSVAGNAITGVTVLDGLNPKLWWPQSSVIRTSTMFLSLSKVEGTRPWPVWTNGRASAPFFLNQRNITEVQRAQGIAPGANWHFEVNGHEFYAKGSNLIPPDSFWTRVTEERISRLFDAVVVGNQNMLRVWSSGAYLHDYIYDLADEKGILLWSEFEFSDALYPSDDAFLENVAAEIVYNVRRVNHHPSLALWAGGNEIESLMLPRVKDAAPSSYSYYVGEYEKMYISLFLPLVYENTRSISYSPSSTTEGYLYIDLSAPVPMAERYDNTTSGSYYGDTDHYDYDTSVAFDYGSYPVGRFANEFGFHSMPSLQTWQQAVDTEDLYFNSSVVMLRNHHDPAGGLMTDNYANSATGMGEMTMGVISYYPIPSKSDHISNFSAWCHATQLFQADMYKSQIQFYRRGSGMPERQLGSLYWQLEDIWQAPSWAGIEYGGRWKVLHHVMRDIYQPVIVSPFWNYTTGSLDVYVTSDLWSPAAGTVDLTWLDLSGRPIAGNAGTPKSVPFTVGGLNSTRIYGTNVSSLGLPDTKDAVLILSLSAHGRLPNSDRTTNLTHENYATLSWPKDLKIVDPGLKLGYSSKKTTVTVEATSGVSLYTWLDYPEGVVGYFEENAFVLAPGEKKEIGFTVLDDTTNGAWVRNITVQSLWDQKVRG
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