Glucan 1,4-α-maltotetraohydrolase

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Glucan 1,4-alpha-maltotetraohydrolase
Glucan 1,4-alpha-maltotetraohydrolase
Identifiers
EC no.	3.2.1.60
CAS no.	37288-44-1
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
PMC
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PMC	articles
PubMed	articles
NCBI	proteins

Glucan 1,4-alpha-maltotetraohydrolase (EC 3.2.1.60, exo-maltotetraohydrolase, 1,4-alpha-D-glucan maltotetraohydrolase) is an enzyme with systematic name 4-alpha-D-glucan maltotetraohydrolase.^[1]^[2] This enzyme catalyses the following chemical reaction

Hydrolysis of (1->4)-alpha-D-glucosidic linkages in amylaceous polysaccharides, to remove successive maltotetraose residues from the non-reducing chain ends

References

^ Nakakuki, T.; Azuma, K.; Kainuma, K. (1984). "Action patterns of various exo-amylases and the anomeric configurations of their products". Carbohydr. Res. 128: 297–310. doi:10.1016/0008-6215(84)85337-9.
^ Robyt, J.F.; Ackerman, R.J. (1971). "Isolation, purification, and characterization of a maltotetraose-producing amylase from Pseudomonas stutzeri". Arch. Biochem. Biophys. 145: 105–114. doi:10.1016/0003-9861(71)90015-4. PMID 5123132.

External links

Glucan+1,4-alpha-maltotetraohydrolase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

[1] Nakakuki, T.; Azuma, K.; Kainuma, K. (1984). "Action patterns of various exo-amylases and the anomeric configurations of their products". Carbohydr. Res. 128: 297–310. doi:10.1016/0008-6215(84)85337-9.

[2] Robyt, J.F.; Ackerman, R.J. (1971). "Isolation, purification, and characterization of a maltotetraose-producing amylase from Pseudomonas stutzeri". Arch. Biochem. Biophys. 145: 105–114. doi:10.1016/0003-9861(71)90015-4. PMID 5123132.

[1]

[2]

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)