Carbohydrate-Binding Module Family 4

Activities in FamilyModules of approx. 150 residues found in bacterial enzymes. Binding of these modules has been demonstrated with xylan, β-1,3-glucan, β-1,3-1,4-glucan, β-1,6-glucan and amorphous cellulose but not with crystalline cellulose.
3D Structure Statusβ-sandwich
NotePreviously known as cellulose-binding domain family IV (CBD IV).
External resourcesHOMSTRAD;
Statistics GenBank accession (481); Uniprot accession (125); PDB accession (18); 3D entries (10); cryst (4)
All (647) Archaea (2) Bacteria (637) unclassified (8) Structure (10 - 4 cryst) Characterized (52)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 endo-β-1,4-glucanase C (CenC) (Cel9B) 3.2.1.4 Cellulomonas fimi ATCC 484 CAA40993.1
AAA23087.1
AAA23088.1
AEE45671.1
P14090
1GU3[A] β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp
2.3
1ULO[A] NMR
1ULP[A] NMR
 endo-β-1,4-glucanase C (CenC) (Cel9B) 3.2.1.4 Cellulomonas fimi ATCC 484 CAA40993.1
AAA23088.1
AEE45671.1
P14090
1CX1[A] NMR
 xylanase (Xynl;Xyn1;RmXyn10A;Rmar_1069) (Xyn10A) 3.2.1.8 Rhodothermus marinus DSM 4252 CAA72323.2
AAR06926.1
AAT06999.1
AAT07000.1
AAT07001.1
AAT07002.1
AAT07003.1
AAT07004.1
AAT07005.1
AAT07006.1
AAT07007.1
AAT07008.1
AAT07009.1
AAT07010.1
AAT07011.1
AAT07012.1
AAT07013.1
AAT07014.1
AAT07015.1
AAT07016.1
AAT07017.1
AAT07018.1
AAT07019.1
AAT07020.1
AAT07021.1
AAT07022.1
AAT07023.1
AAT07024.1
AAT07025.1
AAT07026.1
AAT07027.1
AAT07028.1
AAT07029.1
AAT07030.1
AAT07031.1
ACY47961.1
Q7WTN6
1K42[A] NMR
1K45[A] NMR
2Y64[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
1.40
2Y6G[A] β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp
1.30
2Y6H[A] 1.08
2Y6J[A] 1.70
2Y6K[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
1.36
2Y6L[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
1.28
3JXS[A,B,C] 1.60
4BJ0[A] α-D-Xylp-(1-6)-β-D-Glcp-(1-4)[α-D-Xylp-(1-6)]-β-D-Glcp-(1-4)[α-D-Xylp-(1-6)]-β-D-Glcp-(1-4)-β-D-Glcp
1.00
5DPN[A] α-D-Xylp-(1-6)-β-D-Glcp-(1-4)[α-D-Xylp-(1-6)]-β-D-Glcp-(1-4)[α-D-Xylp-(1-6)]-β-D-Glcp-(1-4)-β-D-Glcp
1.60
 cellobiohydrolase (CbhA;Cthe_0413) (Cbh9A) 3.2.1.91 Ruminiclostridium thermocellum ATCC 27405 ABN51651.1 A3DCH2
3K4Z[A] β-D-Glcp-(1-4)-β-D-Glcp
<carb_like_XGP>
2.11
 lichenase A / laminarinase (LicA) (Lic16A) 3.2.1.6
3.2.1.73
Ruminiclostridium thermocellum DSM 1237 CAA61884.2 Q59328
cryst    
 lichenase A / laminarinase (LicA) (Lic16A) 3.2.1.6
3.2.1.73
Ruminiclostridium thermocellum DSM 1237 CAA61884.2 Q59328
cryst    
 lichenase A / laminarinase (LicA) (Lic16A) 3.2.1.6
3.2.1.73
Ruminiclostridium thermocellum DSM 1237 CAA61884.2 Q59328
cryst    
 lichenase A / laminarinase (LicA) (Lic16A) 3.2.1.6
3.2.1.73
Ruminiclostridium thermocellum DSM 1237 CAA61884.2 Q59328
cryst    
 cellobiohydrolase K (CelK) (Cel9K) 3.2.1.4
3.2.1.91
Ruminiclostridium thermocellum JW 20 / F7 AAC06139.1 O68438
P0C2S1
3P6B[A,B] 2.00
 laminarinase (Lam;TmLam;TM0024) (Lam16) 3.2.1.39 Thermotoga maritima MSB8 AAD35118.1
AGL48947.1
AHD18205.1
AKE27833.1
NP_227840.1
Q9WXN1
1GUI[A] β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.9
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