Accession | TIGR02103 |
Name | pullul_strch |
Function | alpha-1,6-glucosidases, pullulanase-type |
Gene Symbol | pulA |
Trusted Cutoff | 697.60 |
Domain Trusted Cutoff | 697.60 |
Noise Cutoff | 384.05 |
Domain Noise Cutoff | 384.05 |
Isology Type | subfamily_domain |
EC Number | 3.2.1.41 |
HMM Length | 900 |
Mainrole Category | Energy metabolism |
Subrole Category | Biosynthesis and degradation of polysaccharides |
Gene Ontology Term | GO:0005983: starch catabolic process biological_process |
| GO:0051060: pullulanase activity molecular_function |
| GO:0051678: pullulan catabolic process biological_process |
Author | Haft DH |
Entry Date | Jan 20 2004 3:36PM |
Last Modified | Feb 14 2011 3:27PM |
Comment | Members of this protein family include secreted (or membrane-anchored) pullulanases of Gram-negative bacteria and pullulanase-type starch debranching enzymes of plants. Both enzymes hydrolyze alpha-1,6 glycosidic linkages. Pullulan is an unusual, industrially important polysaccharide in which short alpha-1,4 chains (maltotriose) are connected in alpha-1,6 linkages. Enzymes that cleave alpha-1,6 linkages in pullulan and release maltotriose are called pullulanases although pullulan itself may not be the natural substrate. This family is closely homologous to, but architecturally different from, the Gram-positive pullulanases of Gram-positive bacteria (TIGR02102). |