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B0Y8K2 (CBHB_ASPFC) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 28. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Probable 1,4-beta-D-glucan cellobiohydrolase B

EC=3.2.1.91
Alternative name(s):
Beta-glucancellobiohydrolase B
Exocellobiohydrolase B
Exoglucanase B
Gene names
Name:cbhB
ORF Names:AFUB_077630
OrganismNeosartorya fumigata (strain CEA10 / CBS 144.89 / FGSC A1163) (Aspergillus fumigatus) [Complete proteome]
Taxonomic identifier451804 [NCBI]
Taxonomic lineageEukaryotaFungiDikaryaAscomycotaPezizomycotinaEurotiomycetesEurotiomycetidaeEurotialesAspergillaceaeAspergillus

Protein attributes

Sequence length532 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceInferred from homology

General annotation (Comments)

Function

The biological conversion of cellulose to glucose generally requires three types of hydrolytic enzymes: (1) Endoglucanases which cut internal beta-1,4-glucosidic bonds; (2) Exocellobiohydrolases that cut the dissaccharide cellobiose from the non-reducing end of the cellulose polymer chain; (3) Beta-1,4-glucosidases which hydrolyze the cellobiose and other short cello-oligosaccharides to glucose By similarity.

Catalytic activity

Hydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose and cellotetraose, releasing cellobiose from the non-reducing ends of the chains.

Subcellular location

Secreted Probable.

Sequence similarities

Belongs to the glycosyl hydrolase 7 (cellulase C) family.

Contains 1 CBM1 (fungal-type carbohydrate-binding) domain.

Ontologies

Keywords
   Biological processCarbohydrate metabolism
Cellulose degradation
Polysaccharide degradation
   Cellular componentSecreted
   DomainSignal
   Molecular functionGlycosidase
Hydrolase
   PTMDisulfide bond
Glycoprotein
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processcellulose catabolic process

Inferred from electronic annotation. Source: UniProtKB-KW

   Cellular_componentextracellular region

Inferred from electronic annotation. Source: UniProtKB-SubCell

   Molecular_functioncellulose 1,4-beta-cellobiosidase activity

Inferred from electronic annotation. Source: UniProtKB-EC

cellulose binding

Inferred from electronic annotation. Source: InterPro

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Signal peptide1 – 2626 Potential
Chain27 – 532506Probable 1,4-beta-D-glucan cellobiohydrolase B
PRO_0000393547

Regions

Domain496 – 53237CBM1
Region27 – 461435Catalytic
Region462 – 49635Thr-rich linker

Sites

Active site2381Nucleophile By similarity
Active site2431Proton donor By similarity

Amino acid modifications

Glycosylation2961N-linked (GlcNAc...) Potential
Disulfide bond504 ↔ 521 By similarity
Disulfide bond515 ↔ 531 By similarity

Sequences

Sequence LengthMass (Da)Tools
B0Y8K2 [UniParc].

Last modified April 8, 2008. Version 1.
Checksum: 03EBC7D15A5EAE78

FASTA53256,457
        10         20         30         40         50         60 
MLASTFSYRM YKTALILAAL LGSGQAQQVG TSQAEVHPSM TWQSCTAGGS CTTNNGKVVI 

        70         80         90        100        110        120 
DANWRWVHKV GDYTNCYTGN TWDTTICPDD ATCASNCALE GANYESTYGV TASGNSLRLN 

       130        140        150        160        170        180 
FVTTSQQKNI GSRLYMMKDD STYEMFKLLN QEFTFDVDVS NLPCGLNGAL YFVAMDADGG 

       190        200        210        220        230        240 
MSKYPTNKAG AKYGTGYCDS QCPRDLKFIN GQANVEGWQP SSNDANAGTG NHGSCCAEMD 

       250        260        270        280        290        300 
IWEANSISTA FTPHPCDTPG QVMCTGDACG GTYSSDRYGG TCDPDGCDFN SFRQGNKTFY 

       310        320        330        340        350        360 
GPGMTVDTKS KFTVVTQFIT DDGTSSGTLK EIKRFYVQNG KVIPNSESTW TGVSGNSITT 

       370        380        390        400        410        420 
EYCTAQKSLF QDQNVFEKHG GLEGMGAALA QGMVLVMSLW DDHSANMLWL DSNYPTTASS 

       430        440        450        460        470        480 
TTPGVARGTC DISSGVPADV EANHPDAYVV YSNIKVGPIG STFNSGGSNP GGGTTTTTTT 

       490        500        510        520        530 
QPTTTTTTAG NPGGTGVAQH YGQCGGIGWT GPTTCASPYT CQKLNDYYSQ CL 

« Hide

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
DS499599 Genomic DNA. Translation: EDP49733.1.

3D structure databases

ProteinModelPortalB0Y8K2.
SMRB0Y8K2. Positions 27-463, 500-532.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblFungiCADAFUBT00007703; CADAFUBP00007567; CADAFUBG00007703.

Phylogenomic databases

HOGENOMHOG000182210.
OrthoDBEOG7ZGXCF.
PhylomeDBB0Y8K2.

Family and domain databases

Gene3D2.70.100.10. 1 hit.
InterProIPR000254. Cellulose-bd_dom_fun.
IPR008985. ConA-like_lec_gl_sf.
IPR001722. Glyco_hydro_7.
[Graphical view]
PfamPF00734. CBM_1. 1 hit.
PF00840. Glyco_hydro_7. 1 hit.
[Graphical view]
PRINTSPR00734. GLHYDRLASE7.
ProDomPD001821. CBD_fun. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SMARTSM00236. fCBD. 1 hit.
[Graphical view]
SUPFAMSSF49899. SSF49899. 1 hit.
SSF57180. SSF57180. 1 hit.
PROSITEPS00562. CBM1_1. 1 hit.
PS51164. CBM1_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameCBHB_ASPFC
AccessionPrimary (citable) accession number: B0Y8K2
Entry history
Integrated into UniProtKB/Swiss-Prot: April 20, 2010
Last sequence update: April 8, 2008
Last modified: April 16, 2014
This is version 28 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Glycosyl hydrolases

Classification of glycosyl hydrolase families and list of entries