Carbohydrate-Binding Module Family 2

Activities in FamilyModules of approx. 100 residues and which are found in a large number of bacterial enzymes. The cellulose-binding function has been demonstrated in many cases. Several of these modules have been shown to also bind chitin or xylan.
3D Structure Statusβ-sandwich
NotePreviously known as cellulose-binding domain family II (CBD II).
External resourcesHOMSTRAD; PROSITE;
Statistics GenBank accession (3534); Uniprot accession (776); PDB accession (16); 3D entries (8); cryst (0)
All (3425) Archaea (17) Bacteria (3208) Eukaryota (146) Viruses (43) unclassified (11) Structure (8) Characterized (167)
| 1 | 2 |
Archaea
Protein Name EC#OrganismGenBank UniprotPDB/3D
 chitinase (PF1234+PF1233;ChiA+ChiB) (Chi18B+Chi18A) 3.2.1.14 Pyrococcus furiosus DSM 3638 AAL81357.1
NP_578962.1
Q8U1H5 2CWR[A]
2CZN[A]
 exo-chitinase (ChiD;Tc-ChiD;CHITON_1119) (reducing end-acting) 3.2.1.- Thermococcus chitonophagus DSM 10152 CUX77898.1
BAU88504.1
   
 exo-chitinase (ChiD;Tc-ChiD;CHITON_1119) (reducing end-acting) 3.2.1.- Thermococcus chitonophagus DSM 10152 CUX77898.1
BAU88504.1
   
 chitinase A (ChiA;CHITON_1717) 3.2.1.14 Thermococcus chitonophagus DSM 10152 CUX78496.1
AAR13021.1
BAU88507.1
Q6T390  
 chitinase A (ChiA;CHITON_1717) 3.2.1.14 Thermococcus chitonophagus DSM 10152 CUX78496.1
AAR13021.1
BAU88507.1
Q6T390  
 chitinase A (ChiA;TK1765) 3.2.1.14
3.2.1.-
Thermococcus kodakarensis KOD1 BAD85954.1
CAT70561.1
Q9UWR7 5DHD[A]
 chitinase A (ChiA;TK1765) 3.2.1.14
3.2.1.-
Thermococcus kodakarensis KOD1 BAD85954.1
CAT70561.1
Q9UWR7 5DHE[A,B]
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D
 endoglucanase (GuxA) 3.2.1.4 Acidothermus cellulolyticus ABH87623.1
ABH87627.1
ABH87629.1
   
 β-mannanase (ManA) 3.2.1.78 Acidothermus cellulolyticus ABJ41262.1
ABJ41265.1
   
 endo-β-1,4-glucanase E1 (EGAc;EGI;TcE1;Acel_0614) (Cel5A) 3.2.1.4 Acidothermus cellulolyticus 11B AAA75477.1
ABH84883.1
ABK52387.1
ACW33392.1
CAD42489.1
CAR96693.1
P54583  
 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 A0LSI1  
 cellulase (Cel12;AcCel12B;Acel_0619) (Cel12B) 3.2.1.4 Acidothermus cellulolyticus 11B ABK52392.1 A0LSI2  
 endo-β-1,4-glucanase 3.2.1.4 Actinomyces sp. 40 AAC06196.1 O66064  
 endo-β-1,4-glucanase (Egl;AZC_1301) 3.2.1.4 Azorhizobium caulinodans ORS 571 BAF87299.1 A8I0V5  
 endo-β-1,4-glucanase (Egl;AZC_1301) 3.2.1.4 Azorhizobium caulinodans ORS 571 BAF87299.1 A8I0V5  
 chitinase CW (ChiCW) 3.2.1.14 Bacillus cereus 28-9 AAM48520.2 Q8KVU8  
 chitinase B (ChiB) 3.2.1.14 Bacillus cereus CH BAB16891.1 Q9FAC8  
 chitinase (ChiA;BTZK0359;BCE33L0359) 3.2.1.14 Bacillus cereus E33L AAU19880.1
AJI29955.1
Q63GJ3  
 chitinase 3.2.1.14 Bacillus thuringiensis 97243-1 ACA34287.1 B1PBV0  
 chitinase (Chi) 3.2.1.14 Bacillus thuringiensis BT-7216 / 010 ABO63962.1 A4L294  
 chitinase (ChiA74;Chi) 3.2.1.14 Bacillus thuringiensis LBIT-82 AAL17867.1
AAL71886.2
ABO21095.1
Q8RSX8
Q93AD3
 
 chitinase B (ChiB) 3.2.1.14 Bacillus thuringiensis serovar colmeri 15A3 ABF57674.1 Q1G154  
 chitinase (Schi;Kchi) 3.2.1.14 Bacillus thuringiensis serovar kurstaki AAO34713.1 Q84FN2  
 chitinase (Chi;BtCHI) (partial) 3.2.1.14 Bacillus thuringiensis serovar kurstaki ACW83014.1 D0EW64  
 chitobiosidase / exochitinase (Chi255) 3.2.1.14
3.2.1.-
Bacillus thuringiensis serovar kurstaki BUPM255 CAG25670.1 Q3MTV5  
 chitinase (ChiA;ChiA-HD73) 3.2.1.14 Bacillus thuringiensis serovar kurstaki HD-73 ABQ65137.2 A5YRG4  
 chitinase (Chi9602;Chi) 3.2.1.14 Bacillus thuringiensis serovar tenebrionis 9602 AHA95666.1    
 chitinase (Chi) 3.2.1.14 Bacillus thuringiensis SUBSP. PAKISTANI AAB58579.1 O07088  
 cellulase (CelA10) 3.2.1.4 bacterium enrichment culture clone CelA10 ACR23656.1 C5HG53  
 cellulase (CelA20) 3.2.1.4 bacterium enrichment culture clone CelA20 ACR23658.1 C5HG55  
 xylanase (XylB8) 3.2.1.8 bacterium enrichment culture clone Xyl8B8 AFH35005.1    
 chitinase (ChiA) 3.2.1.14 Brevibacillus laterosporus M64 AKN21157.1    
 chitinase 72A (Chi72A) 3.2.1.14 Brevibacillus sp. CDY64 AKN79541.1    
 endo-β-1,4-glucanase 1 (End1;EglI;EGI) 3.2.1.4
3.2.1.73
Butyrivibrio fibrisolvens H17C CAA35574.1
AAE29745.1
P20847  
 xylanase D / 11A (XynD;XylD;Xyl11A) (Xyn11A) 3.1.1.72
3.2.1.8
Cellulomonas fimi 221 CAA54145.1 P54865 1E5B[A]
1E5C[A]
1XBD[A]
2XBD[A]
 xylanase D / 11A (XynD;XylD;Xyl11A) (Xyn11A) 3.1.1.72
3.2.1.8
Cellulomonas fimi 221 CAA54145.1 P54865 1HEH[C]
1HEJ[C]
 cellobiohydrolase A (CbhA;Celf_1925) (Cel6B) 3.2.1.91 Cellulomonas fimi ATCC 484 AAC36898.1
AEE46055.1
P50401  
 cellobiohydrolase B (Cbp120;CbhB;CenE) (Cel48A) 3.2.1.176 Cellulomonas fimi ATCC 484 AAB00822.1
AEE47513.1
P50899  
 endo-β-1,4-glucanase A (CenA;Celf_3184) (Cel6A) 3.2.1.4 Cellulomonas fimi ATCC 484 AEE47298.1
AAA23084.1
P07984  
 endo-β-1,4-glucanase B (CenB;Celf_0019) (Cel9A) 3.2.1.4 Cellulomonas fimi ATCC 484 AAA23086.1
AEE44171.1
P26225  
 endo-β-1,4-glucanase D (CenD;Celf_1924) (Cel5A) 3.2.1.4 Cellulomonas fimi ATCC 484 AAA23089.1
AEE46054.1
P50400  
 xylanase B / 10A (Cex;Exg;XynB;Celf_1271) (Xyn10A) 3.2.1.8 Cellulomonas fimi ATCC 484 AEA30147.1
AAA56791.1
AAA56792.1
AAB34464.1
AEE45406.1
P07986
Q59277
1EXG[A]
1EXH[A]
 β-1,4-xylanase (Cfx) 3.2.1.8 Cellulomonas fimi ATCC 484 AAZ76373.1 Q3YAW6  
 endo-β-1,4-glucanase B (CelB;CflB;CelCflB;SP18) 3.2.1.4 Cellulomonas flavigena CDBB-531 AAD48494.3
AAD48494.2
Q9S3V3  
 endoglucanase (CBP105) (processive) 3.2.1.4 Cellulomonas flavigena CDBB-531 AAW62376.2 Q3ZMA8  
 endo-β-1,4-xylanase (XynI) (fragment) 3.2.1.8 Cellulomonas flavigena CDBB-531 CAH03685.3
AAK15536.1
Q14ST6
Q9AG99
 
 xylanase (XIB;XylXib;ClXyn11A) (Xyn11A) 3.2.1.8 Cellulomonas flavigena CDBB-531 CAJ57849.1 A2AWV8  
 chitinase 63 (Chi63) 3.2.1.14 Cellulomonas sp. GM13 AAF00931.2 Q84BN2  
 chitinase A (ChiA) 3.2.1.14 Cellulomonas uda ATCC 21399 AAG27061.2 Q9EY44  
 endoglucanase / xylanase (CGSCsYakCAS_09989) (Cel5A) 3.2.1.- Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98591.1 D2KFI9  
 endoglucanase / xylanase (CGSCsYakCAS_09989) (Cel5A) 3.2.1.- Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98591.1 D2KFI9  
 xylanase (CGSCsYakCAS_10610) (fragment) (Xyn10A) 3.2.1.8 Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98596.1 D2KFJ4  
 xylanase (CGSCsYakCAS_10610) (fragment) (Xyn10A) 3.2.1.8 Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98596.1 D2KFJ4  
 CGSCsYakCAS_04919 (Xyn30A) 3.2.1.8 Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98597.1 D2KFJ5  
 feruloyl esterase I (FaeI;CGSCsYakCAS_18248) (Fae1A) 3.1.1.73 Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98598.1 D2KFJ6  
 endo-β-1,4-xylanase 3.2.1.8 Cellulosimicrobium cellulans CKMX1 CDG66213.1    
 endo-β-1,4-glucanase (CelL) 3.2.1.4
3.2.1.73
Cellulosimicrobium funkei HY-13 ALK04194.1    
 xylanase (XylK1;XylK-1) 3.2.1.8 Cellulosimicrobium sp. HY-13 ACY75514.1 D1GET5  
 α-L-arabinofuranosidase C (XynC;XylC;CJA_3281) (Abf62A) 3.2.1.55 Cellvibrio japonicus Ueda107 ACE85320.1
CAA38390.1
B3PEH9
P23031
 
 feruloyl esterase D (Fae1;XylD;XynD;CJA_3282) (Fee1B) 3.1.1.73 Cellvibrio japonicus Ueda107 ACE85652.1
CAA41727.1
B3PEI0
Q51815
 
 xylanase B /10B (XynB;XylB;CJA_3280) (Xyn10B) 3.2.1.8 Cellvibrio japonicus Ueda107 ACE84499.1
CAA38389.1
B3PEH8
P23030
 
 endo-β-1,4-glucanase E / 5B (CelE;CJA_2983) (Cel5B) 3.2.1.4 Cellvibrio japonicus Ueda107 ACE84076.1
CAA60493.1
B3PCS3
Q59665
 
 rhamnogalacturonan lyase (CJA_3559) (Rgl11A) 4.2.2.23 Cellvibrio japonicus Ueda107 ACE83155.1
AAK20911.1
B3PGW4
Q9AF09
 
 endo-β-1,4-glucanase A (CelA;CJA_2472) (Cel9A) 3.2.1.4 Cellvibrio japonicus Ueda107 ACE85757.1
CAA31082.1
B3PKK4
P10476
 
 xylanase A / 10A (XynA;XylA;Xyl10A;CjXyn10A;CJA_2471) (Xyn10A) 3.2.1.8 Cellvibrio japonicus Ueda107 ACE85439.1
CAA33469.1
B3PKK3
P14768
 
 pectate lyase (PelA;CJA_3104) (Pel10A) 4.2.2.2 Cellvibrio japonicus Ueda107 ACE85516.1
AAG29353.1
B3PDE6
Q9F7L3
 
 endo-β-1,4-glucanase B / 45A (CelB;EGB;CJA_0374) (Cel45A) 3.2.1.4 Cellvibrio japonicus Ueda107 ACE82688.1
CAA36844.1
B3PI35
P18126
 
 cellodextrinase C / 5A (CelC;CJA_1462) (Cel5A) 3.2.1.74 Cellvibrio japonicus Ueda107 ACE82870.1
CAA43597.1
B3PDK2
P27033
 
 endo-β-1,4-mannanase 5B (CJA_2475) (Man5B) 3.2.1.78 Cellvibrio japonicus Ueda107 AAO31760.1
ACE84941.1
B3PKK7
Q840C1
 
 cellobiohydrolase 6A (CJA_2473) (Cel6A) 3.2.1.91 Cellvibrio japonicus Ueda107 ACE85978.1 B3PKK5  
 bifunctional cellulase / expansin (CelA;pCM1_0020) 3.2.1.4 Clavibacter michiganensis subsp. michiganensis NCPPB 382 CAA44467.2
CAM98473.1
Q9K5C7  
 cellulase (CelA;pCS0061) 3.2.1.4 Clavibacter michiganensis subsp. sepedonicus ATCC33113 AAK16222.1
CAQ03244.1
B0RJ54
Q9AF65
 
 endo-β-1,4-glucanase / xylanase D (EngD) 3.2.1.4
3.2.1.73
3.2.1.8
Clostridium cellulovorans ATCC 35269 AAA23233.1 P28623 3ICG[A,B,C,D]
3NDY[E,F,G,H]
3NDZ[E,F,G,H]
 endo-β-1,4-glucanase (CelA) 3.2.1.4 Clostridium longisporum AAC37035.1 P54937  
 endo-β-1,4-xylanase (Mxyn10) 3.2.1.8 Demequina sp. JK4 ACM41799.1 B9VSZ3  
 endoglucanase (partial) 3.2.1.4 Fibrobacter succinogenes subsp. succinogenes S85 AAC06197.1 O66065  
 lytic cellulose monooxygenase (HcAA10-2;HCH_00807) 1.-.-.- Hahella chejuensis KCTC 2396 ABC27701.1 Q2SNS3  
 cellulase (HCH_02465) 3.2.1.- Hahella chejuensis KCTC 2396 ABC29272.1 Q2SJA2  
 xyloglucanase (Xeg) 3.2.1.151 Jonesia DSM 14140 CAD58415.1    
 xylanase (XynB;KSE_59480) 3.2.1.8 Kitasatospora setae KM-6054 BAJ31718.1 E4N0N4  
 endo-β-1,4-glucanase (CenA;MCenA) 3.2.1.4 Micromonospora cellulolyticum AAC60491.1 Q53488  
 cellulose acetate esterase (CaeA) 3.1.1.- Neisseria sicca SB BAJ21448.1 E1CAJ7  
 endo-β-1,4-glucanase I (EGI;EGII) 3.2.1.4 Neisseria sicca SB BAJ21449.1 E1CAJ8  
 xylanase 10A (SviXyn10A;Svir_05340) (Xyn10A) 3.2.1.8 Saccharomonospora viridis DSM 43017 ACU95608.1 C7MUP5  
 endo-β-1,4-glucanase 6A (Sde_2272) (Cel6A) 3.2.1.4 Saccharophagus degradans 2-40 ABD81532.1 Q21IE7  
 endo-β-1,4-glucanase 6A (Sde_2272) (Cel6A) 3.2.1.4 Saccharophagus degradans 2-40 ABD81532.1 Q21IE7  
 endo-β-1,4-glucanase 5D (Sde_2636) (Cel5D) 3.2.1.4 Saccharophagus degradans 2-40 ABD81896.1 Q21HD3  
 processive endoxyloglucanase (SaGH74A;SAV1856;SAV_1856) 3.2.1.151 Streptomyces avermitilis MA-4680 = NBRC 14893 BAC69567.1
NP_823032.1
   
 chitinase C (ChiC;Chi18aC;ScChiC;2SC6G5.20c;SCO5376) (Chi18C) 3.2.1.14 Streptomyces coelicolor A3(2) CAB94547.1
AAD16453.1
BAA75644.1
NP_629515.1
Q7AKG2
Q9Z9M8
2RTT[A]
 xyloglucan-specific endo-β-1,4-glucanase (SCO6545) 3.2.1.151 Streptomyces coelicolor A3(2) CAA20642.1
NP_630626.1
O86727  
 xylanase (XlnB;SCO2292) 3.2.1.8 Streptomyces coelicolor A3(2) CAB61738.1
NP_626540.1
Q9RKN6  
 lytic cellulose monooxygenase (C1-specific) (CelS2;ScLPMO10C;ScAA10C;SCO1188;SCG11A.19) 1.-.-.- Streptomyces coelicolor A3(2) CAB61600.1
NP_625478.1
Q9RJY2  
 chitinase III (ChiIII;Chi III) 3.2.1.14 Streptomyces griseus HUT 6037 BAB86377.1 Q8RQP6  
 endo-β-1,4-glucanase (CelA2;Cel2) 3.2.1.4 Streptomyces halstedii JM8 AAC45429.1 O08468  
 xylanase (Xys1;XysA) 3.2.1.8 Streptomyces halstedii JM8 AAC45554.1
AAO95222.1
Q59922  
 acetyl xylan esterase (AxeA;AcXE;SlCE4) 3.1.1.72 Streptomyces lividans 1326 AAC06115.2
AAC06115.1
Q54413  
 xylanase B (XlnB;XlnB1;XlnB2) 3.2.1.8 Streptomyces lividans 1326 AAC06114.2
AAS31736.1
P26515  
 endo-β-1,4-glucanase A (CelA) 3.2.1.4 Streptomyces lividans 1326   P27035  
 endo-β-1,4-glucanase (CelB;CelB2;EGI) 3.2.1.4 Streptomyces lividans 1326 AAB71950.1
AAR63649.1
AAR67702.1
ABJ29233.1
ACP76252.1
Q54331  
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