CBM13

Summary
Family
Carbohydrate-Binding Module Family 13
CAZy
Activities
Modules of approx. 150 residues which always appear as a threefold internal repeat. The only apparent exception to this, xylanase II of Actinomadura sp. FC7 (GenBank U08894), is in fact not completely sequenced. These modules were first identified in several plant lectins such as ricin or agglutinin of Ricinus communis which bind galactose residues. The three-dimensional structure of a plant lectin has been determined and displays a pseudo-threefold symmetry in accord with the observed sequence threefold repeat. These modules have since been found in a number of other proteins of various functions including glycoside hydrolases and glycosyltransferases. While in the plant lectins this module binds mannose, binding to xylan has been demonstrated in the Streptomyces lividans xylanase A and arabinofuranosidase B. Binding to GalNAc has been shown for the corresponding module of GalNAc transferase 4. For the other proteins, the binding specificity of these modules has not been established. The pseudo three-fold symmetry of the CBM13 module has now been confirmed in the 3-D structure of the intact, two-domain, xylanase of Streptomyces olivaceoviridis.
Protein List
Displaying entries 251 - 275 of 374 in total
UniProt ID Protein Name GenBank Gene ID Enzyme Organism
A0A6I6RVA3 Hydrogenase expression protein
Q28D20 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-
A1A5P1 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-
A0A653EYR6 Ricin-type beta-trefoil lectin domain protein
Q97TI3 Possible xylan degradation enzyme (Glycosyl hydrolase family 30-like domain and Ricin B-like domain)
G1X3G7 Ricin B-type lectin domain-containing protein
Q6PB93 Polypeptide N-acetylgalactosaminyltransferase 2
  • 2.4.1.41
Q97L56 Endo-1,4-beta glucanase (Fused to two ricin-B-like domains)
Q5RFJ6 N-acetylgalactosaminyltransferase 7
  • 2.4.1.41
Q8MYY6 Putative polypeptide N-acetylgalactosaminyltransferase 13
  • 2.4.1.41
F0VAC6 Putative UDP-N-acetyl-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase T3
Q9SLV9 XSP30
C9Z041 Putative secreted arabinase
B1VQ97 Ricin B-type lectin domain-containing protein
Q9EWR5 Putative secreted hydrolase
Q10472 Polypeptide N-acetylgalactosaminyltransferase 1
  • 2.4.1.41
Q6NX01 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-
C9YSR8 Putative exported fucosidase
Q4G146 GALNTL2 protein
A0A1C9TA72 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-
F5XVG5 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-
Q7Z203 Calcium up-regulated protein B
B1VN08 Ricin B-type lectin domain-containing protein
V9KHL7 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-
Q6AYA4 Polypeptide N-acetylgalactosaminyltransferase
  • 2.4.1.-

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: August 19, 2024