Carbohydrate-Binding Module Family 13

Activities in FamilyModules of approx. 150 residues which always appear as a threefold internal repeat. The only apparent exception to this, xylanase II of Actinomadura sp. FC7 (GenBank U08894), is in fact not completely sequenced. These modules were first identified in several plant lectins such as ricin or agglutinin of Ricinus communis which bind galactose residues. The three-dimensional structure of a plant lectin has been determined and displays a pseudo-threefold symmetry in accord with the observed sequence threefold repeat. These modules have since been found in a number of other proteins of various functions including glycoside hydrolases and glycosyltransferases. While in the plant lectins this module binds mannose, binding to xylan has been demonstrated in the Streptomyces lividans xylanase A and arabinofuranosidase B. Binding to GalNAc has been shown for the corresponding module of GalNAc transferase 4. For the other proteins, the binding specificity of these modules has not been established. The pseudo three-fold symmetry of the CBM13 module has now been confirmed in the 3-D structure of the intact, two-domain, xylanase of Streptomyces olivaceoviridis.
3D Structure Statusβ-trefoil
NotePreviously known as cellulose-binding domain family XIII (CBD XIII).
External resourcesHOMSTRAD;
Statistics GenBank accession (5533); Uniprot accession (902); PDB accession (143); 3D entries (56); cryst (1)
All (5278) Archaea (18) Bacteria (4665) Eukaryota (558) Viruses (26) unclassified (11) Structure (56 - 1 cryst) Characterized (99)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 47 |
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D
 B737_7275 (GalA)   Amycolatopsis mediterranei RB AGT87936.1    
 B737_8252   Amycolatopsis mediterranei RB AGT88913.1    
 B737_5527   Amycolatopsis mediterranei RB AGT86191.1    
 B737_3372   Amycolatopsis mediterranei RB AGT84036.1    
 B737_3254   Amycolatopsis mediterranei RB AGT83918.1    
 B737_7713   Amycolatopsis mediterranei RB AGT88374.1    
 B737_2877 (AbfA)   Amycolatopsis mediterranei RB AGT83541.1    
 B737_1397   Amycolatopsis mediterranei RB AGT82061.1    
 B737_2347   Amycolatopsis mediterranei RB AGT83011.1    
 B737_3946 (AbfA)   Amycolatopsis mediterranei RB AGT84610.1    
 B737_3938   Amycolatopsis mediterranei RB AGT84602.1    
 B737_8369   Amycolatopsis mediterranei RB AGT89030.1    
 B737_3702   Amycolatopsis mediterranei RB AGT84366.1    
 B737_3259   Amycolatopsis mediterranei RB AGT83923.1    
 B737_6339 (XynA)   Amycolatopsis mediterranei RB AGT87003.1    
 B737_5465   Amycolatopsis mediterranei RB AGT86129.1    
 B737_8251 (SrfJ)   Amycolatopsis mediterranei RB AGT88912.1    
 B737_7708 (AbfA)   Amycolatopsis mediterranei RB AGT88369.1    
 B737_3255   Amycolatopsis mediterranei RB AGT83919.1    
 B737_3945   Amycolatopsis mediterranei RB AGT84609.1    
 B737_1460   Amycolatopsis mediterranei RB AGT82124.1    
 B737_3703   Amycolatopsis mediterranei RB AGT84367.1    
 B737_7707 (GalA)   Amycolatopsis mediterranei RB AGT88368.1    
 B737_1289   Amycolatopsis mediterranei RB AGT81953.1    
 B737_7371   Amycolatopsis mediterranei RB AGT88032.1    
 B737_3373   Amycolatopsis mediterranei RB AGT84037.1    
 B737_3887   Amycolatopsis mediterranei RB AGT84551.1    
 B737_3261 (AbfA)   Amycolatopsis mediterranei RB AGT83925.1    
 B737_7706   Amycolatopsis mediterranei RB AGT88367.1    
 B737_6338   Amycolatopsis mediterranei RB AGT87002.1    
 B737_3060   Amycolatopsis mediterranei RB AGT83724.1    
 B737_5387   Amycolatopsis mediterranei RB AGT86051.1    
 B737_8249   Amycolatopsis mediterranei RB AGT88910.1    
 B737_3256 (AbfA)   Amycolatopsis mediterranei RB AGT83920.1    
 B737_3940   Amycolatopsis mediterranei RB AGT84604.1    
 B737_3257   Amycolatopsis mediterranei RB AGT83921.1    
 B737_1908 (GalA)   Amycolatopsis mediterranei RB AGT82572.1    
 B737_7266   Amycolatopsis mediterranei RB AGT87927.1    
 B737_8250 (fragment)   Amycolatopsis mediterranei RB AGT88911.1    
 B737_5544   Amycolatopsis mediterranei RB AGT86208.1    
 B737_8855 (fragment)   Amycolatopsis mediterranei RB AGT89515.1    
 RAM_43025   Amycolatopsis mediterranei S699 AEK47072.1
AFO81783.1
   
 RAM_18735   Amycolatopsis mediterranei S699 AEK42233.1
AFO77175.1
   
 RAM_20365   Amycolatopsis mediterranei S699 AEK42553.1
AFO77483.1
   
 RAM_19085   Amycolatopsis mediterranei S699 AEK42303.1
AFO77239.1
   
 RAM_16735   Amycolatopsis mediterranei S699 AEK41835.1
AFO76790.1
   
 RAM_28565   Amycolatopsis mediterranei S699 AEK44190.1
AFO79063.1
   
 RAM_06740   Amycolatopsis mediterranei S699 AEK39840.1
AFO74857.1
   
 RAM_40205   Amycolatopsis mediterranei S699 AEK46508.1
AFO81239.1
   
 RAM_18195   Amycolatopsis mediterranei S699 AEK42125.1
AFO77076.1
   
 RAM_18195   Amycolatopsis mediterranei S699 AEK42125.1
AFO77076.1
   
 RAM_14765   Amycolatopsis mediterranei S699 AEK41441.1
AFO76412.1
   
 RAM_43015   Amycolatopsis mediterranei S699 AEK47070.1
AFO81781.1
   
 RAM_28195   Amycolatopsis mediterranei S699 AEK44116.1
AFO79001.1
   
 RAM_16780   Amycolatopsis mediterranei S699 AEK41844.1
AFO76798.1
   
 RAM_17320   Amycolatopsis mediterranei S699 AEK41950.1
AFO76903.1
   
 RAM_43030   Amycolatopsis mediterranei S699 AEK47073.1
AFO81784.1
   
 RAM_26250   Amycolatopsis mediterranei S699 AEK43727.1
AFO78627.1
   
 RAM_37970   Amycolatopsis mediterranei S699 AEK46061.1
AFO80808.1
   
 RAM_20355   Amycolatopsis mediterranei S699 AEK42551.1
AFO77481.1
   
 RAM_40240   Amycolatopsis mediterranei S699 AEK46515.1
AFO81246.1
   
 RAM_16745   Amycolatopsis mediterranei S699 AEK41837.1
AFO76792.1
   
 RAM_06575   Amycolatopsis mediterranei S699 AEK39807.1
AFO74824.1
   
 RAM_20315   Amycolatopsis mediterranei S699 AEK42543.1
AFO77474.1
   
 RAM_17350   Amycolatopsis mediterranei S699 AEK41956.1
AFO76908.1
   
 RAM_19080   Amycolatopsis mediterranei S699 AEK42302.1
AFO77238.1
   
 RAM_20360   Amycolatopsis mediterranei S699 AEK42552.1
AFO77482.1
   
 RAM_20325   Amycolatopsis mediterranei S699 AEK42545.1
AFO77476.1
   
 RAM_07455   Amycolatopsis mediterranei S699 AEK39983.1
AFO74995.1
   
 RAM_20045   Amycolatopsis mediterranei S699 AEK42493.1
AFO77423.1
   
 RAM_09755   Amycolatopsis mediterranei S699 AEK40441.1
AFO75443.1
   
 RAM_40210   Amycolatopsis mediterranei S699 AEK46509.1
AFO81240.1
   
 RAM_27790   Amycolatopsis mediterranei S699 AEK44035.1
AFO78923.1
   
 RAM_38455   Amycolatopsis mediterranei S699 AEK46158.1
AFO80904.1
   
 RAM_16750   Amycolatopsis mediterranei S699 AEK41838.1
AFO76793.1
   
 RAM_32975   Amycolatopsis mediterranei S699 AEK45068.1
AFO79875.1
   
 RAM_24520   Amycolatopsis mediterranei S699 AEK43384.1
AFO78294.1
   
 RAM_12070   Amycolatopsis mediterranei S699 AEK40904.1
AFO75882.1
   
 RAM_18905   Amycolatopsis mediterranei S699 AEK42267.1
AFO77206.1
   
 RAM_15730   Amycolatopsis mediterranei S699 AEK41634.1
AFO76595.1
   
 RAM_20310   Amycolatopsis mediterranei S699 AEK42542.1
AFO77473.1
   
 RAM_16740   Amycolatopsis mediterranei S699 AEK41836.1
AFO76791.1
   
 RAM_17355   Amycolatopsis mediterranei S699 AEK41957.1
AFO76909.1
   
 RAM_40235   Amycolatopsis mediterranei S699 AEK46514.1
AFO81245.1
   
 RAM_28675   Amycolatopsis mediterranei S699 AEK44212.1
AFO79080.1
   
 RAM_43020 (fragment)   Amycolatopsis mediterranei S699 AEK47071.1
AFO81782.1
   
 RAM_46115 (fragment)   Amycolatopsis mediterranei S699 AEK47688.1
AFO82386.1
   
 AMES_8368   Amycolatopsis mediterranei S699 AFO81901.1
AEK47190.1
   
 AMES_7266   Amycolatopsis mediterranei S699 AFO80799.1
AEK46052.1
   
 AMES_6338   Amycolatopsis mediterranei S699 AFO79874.1
AEK45067.1
   
 AMES_3878   Amycolatopsis mediterranei S699 AFO77414.1
AEK42483.1
   
 AMES_3261 (AbfA)   Amycolatopsis mediterranei S699 AFO76797.1
AEK41843.1
   
 AMES_3259   Amycolatopsis mediterranei S699 AFO76795.1
AEK41841.1
   
 AMES_3886   Amycolatopsis mediterranei S699 AEK42492.1
AFO77422.1
   
 AMES_7708 (AbfA)   Amycolatopsis mediterranei S699 AFO81241.1
AEK46510.1
   
 AMES_1396   Amycolatopsis mediterranei S699 AFO74932.1
AEK39916.1
   
 AMED_7828   Amycolatopsis mediterranei U32 ADJ49536.1 D8HQB2  
 AMED_1296   Amycolatopsis mediterranei U32 ADJ43110.1 D8I6W0  
 AMED_1469   Amycolatopsis mediterranei U32 ADJ43282.1 D8I8I3  
 AMED_1923 (GalA)   Amycolatopsis mediterranei U32 ADJ43732.1 D8HQM1  
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