Carbohydrate-Binding Module Family 20

Activities in FamilyThe granular starch-binding function has been demonstrated in several cases. Interact strongly with cyclodextrins. Often designated as starch-binding domains (SBD).
NotePDB:1b90
External resourcesHOMSTRAD; PROSITE;
Statistics GenBank accession (1342); Uniprot accession (320); PDB accession (80); 3D entries (15); cryst (0)
All (1275) Archaea (7) Bacteria (993) Eukaryota (259) unclassified (16) Structure (15) Characterized (121)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 β-amylase (SpoII) 3.2.1.2 Bacillus cereus VAR. MYCOIDES BAA34650.1
BAA75890.1
P36924
Q9Z4N9
1B90[A] 2.50
1B9Z[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.10
1CQY[A] 1.95
1ITC[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.10
1ITD[nd]
1ITJ[nd]
1J0Y[A,B,C,D] β-D-Glcp
2.10
1J0Z[A,B,C,D] α-D-Glcp-(1-4)-β-D-Glcp
2.20
1J10[A,B,C,D] α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Xylp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Xylp
2.10
1J11[A,B,C,D] 2.00
1J12[A,B,C,D] 2.10
1J18[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.00
1VEM[A] α-D-Glcp-(1-4)-α-D-Glcp
1.85
1VEN[A] D-1-deoxy-Glcp
α-D-Glcp
2.02
1VEO[A] α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.12
1VEP[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.06
5BCA[A,B,C,D] 2.20
 β-cyclodextrin glucanotransferase (Cgt) 2.4.1.19 Bacillus circulans 251 CAA55023.1 P43379
1CDG[A] α-D-Glcp-(1-4)-α-D-Glcp
2.00
1CGV[A] α-D-Glcp-(1-4)-α-D-Glcp
2.50
1CGW[A] α-D-Glcp-(1-4)-α-D-Glcp
2.50
1CGX[A] α-D-Glcp-(1-4)-α-D-Glcp
2.50
1CGY[A] α-D-Glcp-(1-4)-α-D-Glcp
2.50
1CXE[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.10
1CXF[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
a-cyclodextrin
2.10
1CXH[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.41
1CXI[A] α-D-Glcp-(1-4)-α-D-Glcp
2.20
1CXK[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.09
1CXL[A] α-D-4-deoxy-Glcp-(1-4)-α-D-Glcp
α-D-4-deoxy-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp1F
α-D-4-deoxy-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp-(1-4)-ASP
1.81
1D3C[A] α-D-Glcp-(1-4)-α-D-Glcp
1.78
1DTU[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.40
1EO5[A] α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.00
1EO7[A] α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.48
1KCK[A] α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.43
1KCL[A] α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
β-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
1.94
1OT1[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.00
1OT2[A] α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.10
1PEZ[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.32
1PJ9[A] α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.00
1TCM[A,B] 2.20
2CXG[A] α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.50
2DIJ[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
2.60
 β-cyclodextrin glucanotransferase (CGTase) 2.4.1.19 Bacillus circulans 8 CAA48401.1 P30920
1CGT[A] 2.00
1CGU[A] α-D-Glcp-(1-4)-β-D-Glcp-(1-4)-GLU
2.50
3CGT[A] b-cyclodextrin
2.40
4CGT[A] 2.60
5CGT[A] α-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
2.50
6CGT[A] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
2.60
7CGT[A] 3.00
8CGT[A] α-D-Glcp-(1-4)-α-D-Glcp4S-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp4S-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp4S
2.40
9CGT[A] α-D-Glcp-(1-4)-α-D-Glcp4S-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp4S-(1-4)-α-D-Glcp1S
2.50
 g-cyclodextrin glucanotransferase (Cgt) 2.4.1.19 Bacillus clarkii 7364 BAH14968.1
ABC06412.1
BAB91217.1
BAB91217.2
CAD87625.1
B9A1J6
Q8L3E0
4JCM[A] 1.65
 β-cyclodextrin glucanotransferase (Cgt) 2.4.1.19 Bacillus sp. 1011 AAA22308.1 P05618
1D7F[A] 1.90
1DED[A] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.00
1I75[A] <carb_like_NOJ>
2.00
1PAM[A] 1.80
1UKQ[A,B] α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-β-D-Glcp
2.00
1UKS[A,B] α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-β-D-Glcp
1.90
1UKT[A,B] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
2.20
1V3J[A,B] 2.00
1V3K[A,B] 2.00
1V3L[A,B] α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-β-D-Glcp
2.10
1V3M[A,B] α-D-Glcp
α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-β-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp
β-D-Glcp
2.00
 maltogenic α-amylase (BSuA;Novamyl) 3.2.1.133 Geobacillus stearothermophilus C599 ABA38666.1
AAA22233.1
AAE62848.1
AAE62849.1
AAY11155.1
ALJ77020.1
CAL60144.1
CAZ67881.1
P19531
1QHO[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp1N-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp
1.70
1QHP[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-β-D-Glcp
1.70
 a/β-cyclodextrin glucanotransferase (Cgt;CgtS;Aga2) 2.4.1.19 Geobacillus stearothermophilus No. 2 / NO2 CAA41770.1
CAA41771.1
CAA41772.1
P31797
1CYG[A] 2.50
 α-cyclodextrin glucanotransferase (partial) 2.4.1.19 Paenibacillus macerans 602-1 AGT21379.1  
3WMS[A] 2.30
 α-cyclodextrin glucanotransferase (CD;Cgt;CgtM) 2.4.1.19 Paenibacillus macerans IAM1243/ IB7 / IFO 3490 (NRRL B-388) / JFB05-01 (CCTCC M203062) CAA41773.1
AAA22298.1
AAC04359.1
O52766
P04830
4JCL[A] 1.70
 a/β-cyclodextrin glucanotransferase (AmyA) 2.4.1.19 Thermoanaerobacterium thermosulfurigenes EM1 AAB00845.1 P26827
1A47[A] α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.56
1CIU[A] 2.30
3BMV[A] 1.60
3BMW[A] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
1.60
Eukaryota
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 glucoamylase (partial)   Aspergillus niger B1 AAM18050.2 Q8TG09
5GHL[A,B,C,D] 2.00
 glucoamylase (GlaA;An03g06550) 3.2.1.3 Aspergillus niger CBS 513.88 CAK38411.1
AAP60775.1
AAT67041.1
ABL16522.1
ACJ91357.1
ACP59407.1
ADX86749.1
AEE60909.1
CAA25219.1
CAA25303.1
CAY05387.1
A2QHE1
P69328
Q6DNH5
1AC0[A] NMR
1ACZ[A] NMR
1KUL[A] NMR
1KUM[A] NMR
 laforin / Hs-laforin (Epm2a)   Homo sapiens AAG18377.1
AAC83347.2
AAH70047.1
AAW18454.1
ACW03513.1
CAA10199.1
CAI20057.1
CAI21419.1
CAI21420.1
CAI21675.1
CAI21676.1
CAI21677.1
NP_005661.1
O95278
4RKK[A,C] α-D-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-D-1-deoxy-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-D-1-deoxy-Glcp
α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp
2.40
 glycerophosphodiester phosphodiesterase 5 (Gde5;KIAA1434;FLJ11085)   Homo sapiens AAH27588.1
BAA92672.2
CAB91047.2
CAD83808.1
NP_062539.1
D3DW06
Q9NPB8
2Z0B[A,B,C,D,E,F] 2.00
 glucoamylase (GA) 3.2.1.3 Trichoderma reesei    
2VN4[A] 1.85
2VN7[A] 1.90
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