Carbohydrate-Binding Module Family 3

Activities in FamilyModules of approx. 150 residues found in bacterial enzymes. The cellulose-binding function has been demonstrated in many cases. In one instance binding to chitin has been reported.
3D Structure Statusβ-sandwich
NotePreviously known as cellulose-binding domain family III (CBD III).
External resourcesCAZypedia; HOMSTRAD; PROSITE;
Commercial Enzyme Provider(s)NZYTech; PROZOMIX;
Statistics GenBank accession (1461); Uniprot accession (275); PDB accession (34); 3D entries (19); cryst (0)
All (1537) Archaea (4) Bacteria (1530) Eukaryota (2) unclassified (1) Structure (19) Characterized (137)
| 1 | 2 |
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D
 endoglucanase (GuxA) 3.2.1.4 Acidothermus cellulolyticus ABH87623.1
ABH87626.1
ABH87627.1
   
 β-mannanase (ManA) 3.2.1.78 Acidothermus cellulolyticus ABJ41262.1
ABJ41264.1
   
 xylanase 10B (Acel_0180) (Xyn10B) 3.2.1.8 Acidothermus cellulolyticus 11B ABK51955.1 A0LR95  
 endoglucanase (GuxA;Acel_0615) 3.2.1.4 Acidothermus cellulolyticus 11B ABK52388.1 A0LSH8  
 avicelase (AviIII;AcGH74;Acel_0618) (Cel74A) 3.2.1.- Acidothermus cellulolyticus 11B ABK52391.1
ACE14916.1
ACS09146.1
A0LSI1  
 endoglucanase (EglII) 3.2.1.4 Bacillus amyloliquefaciens PSM 3.1 ADC54852.1 D3Y2F0  
 endo-β-1,4-glucanase (Egl01) 3.2.1.4 Bacillus licheniformis AIY72753.1    
 endoglucanase (BLi01880;BL01232;BlCel9) 3.2.1.4 Bacillus licheniformis DSM 13 = ATCC 14580 AAU40775.1
AAU23415.1
Q65JI9  
 endo-β-1,4-glucanase C (BglC;BLi02088;BL01471) (Cel5A) 3.2.1.4 Bacillus licheniformis DSM 13 = ATCC 14580 AAU23613.2
AAU23613.1
AAU40977.1
ACR87895.1
CAF05574.1
CAV28462.1
A5A671
Q65IY7
 
 cellulase (Cel9A) (Cel9A) 3.2.1.4 Bacillus licheniformis GXN151 AAR29083.1 Q6SYB5  
 endo-β-1,4-glucanase (Cel5A) (Cel5A) 3.2.1.4 Bacillus licheniformis GXN151 / B-41361 AAP51020.1 Q7X3S6  
 endoglucanase (CelA) 3.2.1.4 Bacillus licheniformis MD1 CAE82178.1 Q5QSM2  
 glucanase (BglC) (fragment) 3.2.1.4 Bacillus megaterium L103 AGG91154.1    
 endo-β-1,4-glucanase A (EglA) 3.2.1.4 Bacillus pumilus CL16 AAQ91573.1 Q5YLG1  
 endo-β-1,4-glucanase 3.2.1.4 Bacillus pumilus S-27 AAF15367.1 Q9R9H6  
 endo-β-1,4-glucanase 3.2.1.4 Bacillus sp. (in: Bacteria) 5H BAA31712.1 O83012  
 endo-β-1,4-glucanase (Cel) (fragment) 3.2.1.4 Bacillus sp. (in: Bacteria) D04 AAC43478.1 Q45430  
 endo-β-1,4-glucanase IV 3.2.1.4 Bacillus sp. (in: Bacteria) KSM-522 BAA24918.1 P28622  
 CelS 3.2.1.4 Bacillus sp. 79-23 AAC02536.1 O52731  
 endoglucanase A (Ega;Bα-EGA) 3.2.1.4 Bacillus sp. AC-1 ABM68635.1 A6Y862  
 endo-β-1,4-glucanase 3.2.1.4 Bacillus subtilis AAA22307.1 Q45532  
 β-1,3-1,4-glucanase / cellulase C (CelA;CelC) 3.2.1.4 Bacillus subtilis A8-8 AAO63626.1 Q6Y4Q1  
 endoglucanase (Egl173;Cel;EglS) 3.2.1.4 Bacillus subtilis BEC-1 / Y106 / shu-3 AAK39540.1
ADM12805.1
ADP05286.1
Q93TJ6  
 endo-β-1,4-glucanase (Eg15) (Cel5A) 3.2.1.4 Bacillus subtilis BME-15 ACI15227.1
ACJ12786.1
ACJ12787.1
ACJ12788.1
ACJ12789.1
ACJ12790.1
ACJ12791.1
ACJ12792.1
B6DVJ2  
 endo-β-1,4-glucanase (CMCase;BglC) 3.2.1.4 Bacillus subtilis BSE616 BAA00859.1 P23549  
 endo-β-1,4-glucanase (EglS;EG) 3.2.1.4 Bacillus subtilis C-36 ABG78039.1 Q0PPV7  
 endo-β-1,4-glucanase (CelG) 3.2.1.4 Bacillus subtilis CHZ1 AAK94871.1 Q93LD0  
 endo-β-1,4-glucanase (EglS) 3.2.1.4 Bacillus subtilis CK-2 CAA47429.1 G1DE47
P10475
 
 endo-β-1,4-glucanase (BglC;Gld) 3.2.1.4 Bacillus subtilis DLG AAA22496.1 P07983  
 cellulase (CelDR) 3.2.1.4 Bacillus subtilis DR ABV45393.1
ACI63223.1
A8D0T0  
 endo-β-1,4-glucanase (CelI15) 3.2.1.4 Bacillus subtilis I15 ACK38261.1 B7UAM4  
 endo-β-1,4-glucanase (Egl499;Egl330) 3.2.1.4 Bacillus subtilis JA18 AAZ22322.1 Q45T78  
 cellulase (Cel15;Cell15) 3.2.1.4 Bacillus subtilis LN ACR59602.1 C5I946  
 endo-β-1,4-glucanase (EglS;BglC;Gld;BSU18130;BsCel5;BsCel5A) (Cel5A) 3.2.1.4 Bacillus subtilis subsp. subtilis str. 168 CAA82317.1
AEJ76923.1
AIY93123.1
AQR81804.1
AQR86018.1
CAA97610.1
CAB13696.2
NP_389695.1
P10475 2L8A[A]
 endo-β-1,4-glucanase 3.2.1.4 Bacillus subtilis subsp. subtilis UMC7 AGG11030.1    
 β-1,4-mannanase (ManA) 3.2.1.78 Caldibacillus cellulovorans AAF22274.1 Q9RFX5  
 β-1,4-mannanase (ManA) 3.2.1.78 Caldibacillus cellulovorans AAF22274.1 Q9RFX5  
 xylanase (XynA) 3.2.1.8 Caldibacillus cellulovorans AAF61649.1 Q9L8L8  
 xylanase (XynA) 3.2.1.8 Caldibacillus cellulovorans AAF61649.1 Q9L8L8  
 cellulase (CelA;CbCelA;Athe_1867;Cbes1867;Cbes_1867;CbCBH48A) (Cel9A+Cbh48A) 3.2.1.176
3.2.1.4
Caldicellulosiruptor bescii DSM 6725 ACM60955.1
CAB06786.1
B9MKU7
P96311
 
 cellulase (CelA;CbCelA;Athe_1867;Cbes1867;Cbes_1867;CbCBH48A) (Cel9A+Cbh48A) 3.2.1.176
3.2.1.4
Caldicellulosiruptor bescii DSM 6725 ACM60955.1
CAB06786.1
B9MKU7
P96311
 
 cellulase (CelA;CbCelA;Athe_1867;Cbes1867;Cbes_1867;CbCBH48A) (Cel9A+Cbh48A) 3.2.1.176
3.2.1.4
Caldicellulosiruptor bescii DSM 6725 ACM60955.1
CAB06786.1
B9MKU7
P96311
 
 bifunctional mannanase / endoglucanase (CbMan5A/Cel44A;Athe_1859;Cbes_1859;ORF1946) (Man5A-Cel44A) 3.2.1.4
3.2.1.78
Caldicellulosiruptor bescii DSM 6725 ACM60947.1 B9MKT9  
 bifunctional mannanase / endoglucanase (CbMan5A/Cel44A;Athe_1859;Cbes_1859;ORF1946) (Man5A-Cel44A) 3.2.1.4
3.2.1.78
Caldicellulosiruptor bescii DSM 6725 ACM60947.1 B9MKT9  
 bifunctional cellulase / β-mannanase (CelC-ManB;CbCel9B/Man5A;Athe_1865;Cbes_1865;Orf1952) (Cel9B-Man5A) 3.2.1.4
3.2.1.78
Caldicellulosiruptor bescii DSM 6725 ACM60953.1 B9MKU5  
 bifunctional cellulase / β-mannanase (CelC-ManB;CbCel9B/Man5A;Athe_1865;Cbes_1865;Orf1952) (Cel9B-Man5A) 3.2.1.4
3.2.1.78
Caldicellulosiruptor bescii DSM 6725 ACM60953.1 B9MKU5  
 bifunctional cellulase / β-mannanase (CelC-ManB;CbCel9B/Man5A;Athe_1865;Cbes_1865;Orf1952) (Cel9B-Man5A) 3.2.1.4
3.2.1.78
Caldicellulosiruptor bescii DSM 6725 ACM60953.1 B9MKU5  
 Athe_1866 (CelB;CbMan5C/Cel5A) (Man5C-Cel5A) 3.2.1.4 Caldicellulosiruptor bescii DSM 6725 ACM60954.1 B9MKU6  
 Athe_1866 (CelB;CbMan5C/Cel5A) (Man5C-Cel5A) 3.2.1.4 Caldicellulosiruptor bescii DSM 6725 ACM60954.1 B9MKU6  
 Athe_1866 (CelB;CbMan5C/Cel5A) (Man5C-Cel5A) 3.2.1.4 Caldicellulosiruptor bescii DSM 6725 ACM60954.1 B9MKU6  
 xylanase / cellobiohydrolase (CelF;Athe_1857;Cbes_1857) (Xyn10C/Cel48B) 3.2.1.- Caldicellulosiruptor bescii DSM 6725 ACM60945.1 B9MKT7  
 xylanase / cellobiohydrolase (CelF;Athe_1857;Cbes_1857) (Xyn10C/Cel48B) 3.2.1.- Caldicellulosiruptor bescii DSM 6725 ACM60945.1 B9MKT7  
 endo-β-1,3-1,4-glucanase (Cel19;Calkr_2522) 3.2.1.73 Caldicellulosiruptor kristjanssonii I77R1B ADQ41951.1 E4S8G9  
 endo-β-1,3-1,4-glucanase (Cel19;Calkr_2522) 3.2.1.73 Caldicellulosiruptor kristjanssonii I77R1B ADQ41951.1 E4S8G9  
 bifunctional β-mannanase / endo-β-1,4-glucanase (ManA) 3.2.1.4
3.2.1.78
Caldicellulosiruptor saccharolyticus AAA71887.1 P22533  
 bifunctional β-mannanase / endo-β-1,4-glucanase (ManA) 3.2.1.4
3.2.1.78
Caldicellulosiruptor saccharolyticus AAA71887.1 P22533  
 cellulase (CelA) 3.2.1.4 Caldicellulosiruptor saccharolyticus AAA91086.1 P22534  
 cellulase (CelA) 3.2.1.4 Caldicellulosiruptor saccharolyticus AAA91086.1 P22534  
 cellulase (CelA) 3.2.1.4 Caldicellulosiruptor saccharolyticus AAA91086.1 P22534  
 endo-β-1,4-glucanase / exo-β-1,4-glucanase (CelB;EgB) 3.2.1.4 Caldicellulosiruptor saccharolyticus CAA31936.1
A43802
P10474  
 cellulase (CBH-B;CelB;Csac_1078) 3.2.1.4 Caldicellulosiruptor saccharolyticus DSM 8903 ABP66692.1 A4XIF7  
 xylanase C (XynC) (multidomain protein) 3.2.1.8 Caldicellulosiruptor sp. Rt69B.1 AAB95326.1 O52374  
 xylanase C (XynC) (multidomain protein) 3.2.1.8 Caldicellulosiruptor sp. Rt69B.1 AAB95326.1 O52374  
 xylanase C (XynC) (multidomain protein) 3.2.1.8 Caldicellulosiruptor sp. Rt69B.1 AAB95326.1 O52374  
 bifunctional β-1,4-xylanase / α-L-arabinosidase (XynA) 3.2.1.55
3.2.1.8
Caldicellulosiruptor sp. Tok7B.1 AAD30363.1 Q9X3P5  
 bifunctional β-1,4-xylanase / α-L-arabinosidase (XynA) 3.2.1.55
3.2.1.8
Caldicellulosiruptor sp. Tok7B.1 AAD30363.1 Q9X3P5  
 bifunctional β-1,4-xylanase / α-L-arabinosidase (XynA) 3.2.1.55
3.2.1.8
Caldicellulosiruptor sp. Tok7B.1 AAD30363.1 Q9X3P5  
 endo-β-1,4-glucanase B (CenB;Celf_0019) (Cel9A) 3.2.1.4 Cellulomonas fimi ATCC 484 AAA23086.1
AEE44171.1
P26225  
 endoglucanase (CBP105) (processive) 3.2.1.4 Cellulomonas flavigena CDBB-531 AAW62376.2 Q3ZMA8  
 cellobiohydrolase (CGSCsYakCAS_04820) (Cel48A) 3.2.1.- Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98592.1 D2KFJ0  
 endoglucanase (CelG;CAC0916) 3.2.1.4 Clostridium acetobutylicum ATCC 824 AAK78892.1
NP_347552.1
Q97KK3  
 endo-β-1,4-glucanase (EngZ;NC1;Clocel_2741) 3.2.1.4 Clostridium cellulovorans 743B ADL52438.1
YP_003844202.1
D9SRK9  
 endo-β-1,4-glucanase H (EngH) 3.2.1.4 Clostridium cellulovorans ATCC 35296 AAC38572.2 O65987  
 endoglucanase / cellulose-binding protein A / E1 (Cbpe1;CbpA) 3.2.1.4 Eubacterium cellulosolvens 5 BAB86305.1 Q8RR29  
 endoglucanase / cellulose-binding protein B (CbpB) 3.2.1.4 Eubacterium cellulosolvens 5 BAE20171.1 Q402U6  
 endo-β-1,4-glucanase (Cel9B) 3.2.1.4 Hungateiclostridium cellulolyticum CD2 ATCC 33288 CAI94607.1    
 endo-β-1,4-glucanase (Cel9B) 3.2.1.4 Hungateiclostridium cellulolyticum CD2 ATCC 33288 CAI94607.1    
 endoglucanase (Clocl_2225) 3.2.1.4 Hungateiclostridium clariflavum DSM 19732 AEV68817.1    
 endo-β-1,4-glucanase I (CelI;Cthe_0040) (Cel9I) 3.2.1.4 Hungateiclostridium thermocellum ATCC 27405 ABN51281.1 Q02934  
 endo-β-1,4-glucanase I (CelI;Cthe_0040) (Cel9I) 3.2.1.4 Hungateiclostridium thermocellum ATCC 27405 ABN51281.1 Q02934  
 endo-β-1,4-glucanase Y (CelY;Cthe_0071) (Cel48B=Cel48Y) 3.2.1.4 Hungateiclostridium thermocellum ATCC 27405 ABN51312.1 A3DBI3  
 cellobiohydrolase (CbhA;Cthe_0413) (Cbh9A) 3.2.1.91 Hungateiclostridium thermocellum ATCC 27405 ABN51651.1 A3DCH2 4C8X[A,B,C,D]
 endo-β-1,4-glucanase F (CelF;Cthe_0543) (Cel9B) 3.2.1.4 Hungateiclostridium thermocellum ATCC 27405 ABN51779.1 P26224  
 endo-β-1,4-glucanase R / cellotetraohydrolase (CelR;Cthe_0578) (Cel9R) 3.2.1.4 Hungateiclostridium thermocellum ATCC 27405 ABN51814.1 A3DCY5  
 endo-β-1,4-glucanase Q (CelQ;Cthe_0625) (Cel9I) 3.2.1.4 Hungateiclostridium thermocellum ATCC 27405 ABN51860.1
ARU79883.1
A3DD31  
 endoglucanase Q (CelQ) (Cel9I) 3.2.1.4 Hungateiclostridium thermocellum F1 BAB33148.1 Q9AJF8 5GXX[A,B]
5GXY[A,B]
5GXZ[A,B]
5GY0[A,B]
5GY1[A,B]
 cellobiohydrolase A (CbhA) (Cbh9A) 3.2.1.91 Hungateiclostridium thermocellum F7 CAA56918.2
CAA56918.1
Q59325 2YLK[A,B,C,D]
3ZQX[A]
 cellotetraose-producing endo-β-1,4-glucanase (CelR) (Cel9R) 3.2.1.4 Hungateiclostridium thermocellum F7 CAE51308.1 Q70DK3  
 cellobiohydrolase (CelO) (Cel5F) 3.2.1.91 Hungateiclostridium thermocellum F7 CAB76938.1 Q9L3J2  
 endo-β-1,4-glucanase N (CelN) (Cel9N) 3.2.1.4 Hungateiclostridium thermocellum F7 CAB76935.1 Q9L3J5  
 endo-β-1,4-glucanase F (CelF) (Cel9B) 3.2.1.4 Hungateiclostridium thermocellum NCIB 10682 CAA43035.1 P26224  
 endo-β-1,4-glucanase I (CelI;CMC) (Cel9C=Cel9I) 3.2.1.4 Hungateiclostridium thermocellum NCIB10682 / F7 AAA20892.1
CAB76932.1
Q02934
Q9L3J8
 
 endo-β-1,4-glucanase I (CelI;CMC) (Cel9C=Cel9I) 3.2.1.4 Hungateiclostridium thermocellum NCIB10682 / F7 AAA20892.1
CAB76932.1
Q02934
Q9L3J8
2XFG[B]
 endo-β-1,4-glucanase (cphy3367;CpCel9;Cphy_3367) (Cel9A) 3.2.1.4 Lachnoclostridium phytofermentans ISDg ABX43720.1 A9KT90  
 endo-β-1,4-glucanase (cphy3367;CpCel9;Cphy_3367) (Cel9A) 3.2.1.4 Lachnoclostridium phytofermentans ISDg ABX43720.1 A9KT90  
 cellobiohydrolase (cphy3368;CpCel48;Cphy_3368) (Cel48) 3.2.1.176 Lachnoclostridium phytofermentans ISDg ABX43721.1 A9KT91  
 endocellulase (EgltA) (Cel9) 3.2.1.4 Myxobacter sp. AL-1 AAF19168.1 Q9RAI8  
 cellobiohydrolase (Cel48C) 3.2.1.176 Paenibacillus barcinonensis BP-23 CAD32945.1 Q8KKF7  
 endo-β-1,4-glucanase B (CelB) (Cel9B) 3.2.1.4 Paenibacillus barcinonensis BP-23 CAB38941.1 Q9Z4I1  
 endo-β-1,4-glucanase B (CelB) (Cel9B) 3.2.1.4 Paenibacillus barcinonensis BP-23 CAB38941.1 Q9Z4I1  
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