Carbohydrate-Binding Module Family 68

Activities in FamilyBinding to maltotriose and maltotetraose shown for the pullulanase of Anoxybacillus sp. LM18-11. Binding function derived from crystal structure and deletion of the CBM, which showed reduced specific activity and increased Km value compared to the wild type enzyme.
NoteFamily created following Xu et al., Proteins 82:1685-1693 [PMID: 24375572].
Statistics GenBank accession (384); Uniprot accession (43); PDB accession (6); 3D entries (2); cryst (0)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 type I pullulanase (PulA) 3.2.1.41 Anoxybacillus sp. LM18-11 AEW23439.1  
3WDH[A] 1.75
3WDI[A] α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.20
3WDJ[A] α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.22
 pullulanase type I / glycogen-debranching enzyme (AmyX;BSU29930) 2.4.1.25
3.2.1.33
3.2.1.41
Bacillus subtilis subsp. subtilis str. 168 AAC00283.1
ACH14984.1
AIY94319.1
AQR83021.1
AQR87236.1
CAB14971.1
CAB14971.2
NP_390871.1
C0SPA0
O34587
2E8Y[A,B] 2.11
2E8Z[A,B] 2.20
2E9B[A,B] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
β-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.30
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