C6CRV0 (XYNA1_PAESJ) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 21.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Endo-1,4-beta-xylanase A EC=3.2.1.8 Alternative name(s): 1,4-beta-D-xylan xylanohydrolase A | ||||||
| Gene names |
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| Organism | Paenibacillus sp. (strain JDR-2) [Complete proteome] [HAMAP] | ||||||
| Taxonomic identifier | 324057 [NCBI] | ||||||
| Taxonomic lineage | Bacteria › Firmicutes › Bacillales › Paenibacillaceae › Paenibacillus |
Protein attributes
| Sequence length | 1462 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Catalyzes the depolymerization of methylglucuronoxylan (MeGAXn), a beta-1,4 xylan in which 10% to 20% of the xylose residues are substituted with alpha-1,2-4-O-methylglucuronate (MeGA) residues, which is predominant in hemicellulose fractions of hardwood and crop residues. Generates xylobiose (X2) and aldotetrauronate (MeGAX3) as the predominant products of MeGAXn hydrolysis; these products are then directly assimilated by the bacterium for subsequent metabolism. Thus, allows the bacterium to efficiently use polymeric MeGAXn as a growth substrate. Ref.1 |
| Catalytic activity | Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans. Ref.1 |
| Pathway | |
| Subcellular location | |
| Sequence similarities | Belongs to the glycosyl hydrolase 10 (cellulase F) family. Contains 3 CBM-cenC (cenC-type cellulose-binding) domains. Contains 3 SLH (S-layer homology) domains. |
| Biophysicochemical properties | Kinetic parameters: Vmax=8.0 µmol/min/mg enzyme with sweet gum methylglucuronoxylan as substrate Ref.1 pH dependence: Optimum pH is 6.5 with sweet gum methylglucuronoxylan as substrate. Temperature dependence: Optimum temperature is 45 degrees Celsius with sweet gum methylglucuronoxylan as substrate. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Carbohydrate metabolism Polysaccharide degradation Xylan degradation |
| Cellular component | Cell wall Secreted |
| Domain | Repeat Signal |
| Molecular function | Glycosidase Hydrolase |
| Technical term | Complete proteome |
| Gene Ontology (GO) | |
| Biological process | polysaccharide catabolic process Inferred from electronic annotation. Source: UniProtKB-KW xylan catabolic processInferred from direct assay Ref.1. Source: UniProtKB |
| Cellular component | cell wall Inferred from direct assay Ref.1. Source: UniProtKB extracellular regionInferred from electronic annotation. Source: UniProtKB-KW |
| Molecular function | carbohydrate binding Inferred from electronic annotation. Source: InterPro cation bindingInferred from electronic annotation. Source: InterPro endo-1,4-beta-xylanase activityInferred from direct assay Ref.1. Source: UniProtKB |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 30 | 30 | Potential | ||||||
| Chain | 31 – 1462 | 1432 | Endo-1,4-beta-xylanase A | PRO_5000484609 | |||||
Regions | |||||||||
| Domain | 64 – 165 | 102 | CBM-cenC 1 | ||||||
| Domain | 207 – 319 | 113 | CBM-cenC 2 | ||||||
| Domain | 360 – 490 | 131 | CBM-cenC 3 | ||||||
| Domain | 1279 – 1342 | 64 | SLH 1 | ||||||
| Domain | 1345 – 1404 | 60 | SLH 2 | ||||||
| Domain | 1407 – 1462 | 56 | SLH 3 | ||||||
| Compositional bias | 186 – 191 | 6 | Poly-Thr | ||||||
Sites | |||||||||
| Active site | 651 | 1 | Proton donor By similarity | ||||||
| Active site | 706 | 1 | By similarity | ||||||
| Active site | 775 | 1 | Nucleophile By similarity | ||||||
Experimental info | |||||||||
| Sequence conflict | 313 | 1 | S → T in CAI79477. Ref.1 | ||||||
| Sequence conflict | 454 – 461 | 8 | SLASKTIT → TPTTQAWQARRLP in CAI79477. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Paenibacillus sp. strain JDR-2 and XynA1: a novel system for methylglucuronoxylan utilization." Stjohn F.J., Rice J.D., Preston J.F. Appl. Environ. Microbiol. 72:1496-1506(2006) [PubMed: 16461704] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, CATALYTIC ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES, SUBCELLULAR LOCATION. Strain: JDR-2. |
| [2] | "Complete sequence of Paenibacillus sp. JDR-2." Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G., Shanmugam K.T., Ingram L.O., Preston J. Submitted (JUN-2009) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: JDR-2. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AJ938162 Genomic DNA. Translation: CAI79477.1. CP001656 Genomic DNA. Translation: ACS98901.1. |
| RefSeq | YP_003008988.1. NC_012914.1. |
3D structure databases | |
| ProteinModelPortal | C6CRV0. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | C6CRV0. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| GeneID | 8127565. |
| GenomeReviews | Gene locus Pjdr2_0221 in contig CP001656_GR. |
| KEGG | pjd:Pjdr2_0221. |
| PATRIC | 22830917. VBIPaeSp118865_0225. |
Organism-specific databases | |
| CMR | Search... |
Phylogenomic databases | |
| OMA | FYIGDIL. |
| ProtClustDB | CLSK2482236. |
Family and domain databases | |
| InterPro | IPR010502. Carb-bd_dom_fam9. IPR008960. Carb-bd_dom_fam9-like. IPR015922. Carb-bd_dom_fam9-like_subgr. IPR003305. CenC_carb-bd. IPR008979. Galactose-bd-like. IPR001000. Glyco_hydro_10. IPR013781. Glyco_hydro_subgr_catalytic. IPR017853. Glycoside_hydrolase_SF. IPR001119. S-layer_homology_dom. [Graphical view] |
| Gene3D | G3DSA:2.60.40.1190. CBD9. 1 hit. G3DSA:3.20.20.80. Glyco_hydro_cat. 1 hit. |
| KO | K01181. |
| Pfam | PF02018. CBM_4_9. 3 hits. PF06452. DUF1083. 1 hit. PF00331. Glyco_hydro_10. 1 hit. PF00395. SLH. 3 hits. [Graphical view] |
| PRINTS | PR00134. GLHYDRLASE10. |
| SMART | SM00633. Glyco_10. 1 hit. [Graphical view] |
| SUPFAM | SSF49344. CBD9-like. 1 hit. SSF49785. Gal_bind_like. 3 hits. SSF51445. Glyco_hydro_cat. 1 hit. |
| PROSITE | PS00591. GLYCOSYL_HYDROL_F10. 1 hit. PS51272. SLH. 3 hits. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | XYNA1_PAESJ | ||||||||
| Accession | Primary (citable) accession number: C6CRV0 Secondary accession number(s): Q53I45 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Prokaryotic Protein Annotation Program | ||||||||
Relevant documents
| Glycosyl hydrolases Classification of glycosyl hydrolase families and list of entries |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with