Glycoside Hydrolase Family 13 / Subf 21

Activities in Familyα-amylase (EC; pullulanase (EC; cyclomaltodextrin glucanotransferase (EC; cyclomaltodextrinase (EC; trehalose-6-phosphate hydrolase (EC; oligo-α-glucosidase (EC; maltogenic amylase (EC; neopullulanase (EC; α-glucosidase (EC; maltotetraose-forming α-amylase (EC; isoamylase (EC; glucodextranase (EC; maltohexaose-forming α-amylase (EC; maltotriose-forming α-amylase (EC; branching enzyme (EC; trehalose synthase (EC; 4-α-glucanotransferase (EC; maltopentaose-forming α-amylase (EC 3.2.1.-) ; amylosucrase (EC ; sucrose phosphorylase (EC; malto-oligosyltrehalose trehalohydrolase (EC; isomaltulose synthase (EC; malto-oligosyltrehalose synthase (EC; amylo-α-1,6-glucosidase (EC; α-1,4-glucan: phosphate α-maltosyltransferase (EC; 6'-P-sucrose phosphorylase (EC 2.4.1.-); amino acid transporter
Activities in Sub Family
Mechanism Retaining
3D Structure Status( β / α ) 8
Catalytic Nucleophile/BaseAsp (experimental)
Catalytic Proton DonorGlu (experimental)
NoteNew: many members have been assigned to subfamilies as described by Stam et al. (2006) Protein Eng Des Sel. 19, 555-562 (PMID: 17085431)
External resourcesCAZypedia; EBI Protein of the Month; HOMSTRAD; PDB Molecule of the Month; PRINTS;
Commercial Enzyme Provider(s)MEGAZYME; PROZOMIX;
Statistics GenBank accession (2596); Uniprot accession (118); PDB accession (10); 3D entries (2); cryst (0)
Protein Name EC#Organism GenBankUniprotPDB/3DSubf
 WN16_09220   Citrobacter sp. ABFQG QBI29323.1     21
 E1B03_06685 (MalZ)   Citrobacter sp. LY-1 QBM22139.1     21
 E4Z61_11620 (MalZ)   Citrobacter sp. SNU WT2 QBX80973.1     21
 ECC18A13_009750   Enterobacter sp. 18A13 BBJ66410.1     21
 FD428_16305 (MalZ)   Citrobacter sp. TBCP-5362 QCQ72484.1     21
 C1N80_12830   Brachybacterium sp. SGAir0954 QCR54373.1     21
 FEM41_10810 (MalZ)   Izhakiella sp. KSNA2 QCT20104.1     21

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