PDBsum entry 2lab

Hydrolase

PDB id: 2lab

Contents

Protein chain

104 a.a.

PDB id:

2lab

Name:

Hydrolase

Title:

Solution strucuture of the cbm25-2 of beta/alpha-amylase from paenibacillus polymyxa

Structure:

Beta/alpha-amylase. Chain: a. Fragment: unp residues 565-668. Synonym: beta-amylase, alpha-amylase. Engineered: yes

Source:

Paenibacillus polymyxa. Bacillus polymyxa. Organism_taxid: 1406. Expressed in: escherichia coli. Expression_system_taxid: 562.

NMR struc:

20 models

Authors:

R.Takahashi,S.Nishimura,T.Ohkubo,T.Yoshida

Key ref:

R.Takahashi et al. A functional and structural analysis of tundem family carbohydrate-Binding modules from paenibacillus polym beta/alpha-Amylase. To be published, .

Date:

09-Mar-11 Release date: 04-Apr-12

Protein chain

P21543  (AMYB_PAEPO) -  Beta/alpha-amylase from Paenibacillus polymyxa

Seq: 1196 a.a.

Struc: 104 a.a.

Enzyme reactions

• Enzyme class 2: E.C.3.2.1.1 - alpha-amylase.
• Reaction: Endohydrolysis of 1,4-alpha-glucosidic linkages in oligosaccharides and polysaccharides.
• Enzyme class 3: E.C.3.2.1.2 - beta-amylase.
• Reaction: Hydrolysis of 1,4-alpha-glucosidic linkages in polysaccharides so as to remove successive maltose units from the non-reducing ends of the chains.

Note, where more than one E.C. class is given (as above), each may correspond to a different protein domain or, in the case of polyprotein precursors, to a different mature protein.