Alpha-amino-acid esterase

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name of this enzyme class is alpha-amino-acid-ester aminoacylhydrolase. This enzyme is also called alpha-amino acid ester hydrolase.

Structural studies

As of late 2007, 5 structures have been solved for this class of enzymes, with PDB accession codes 1MPX, 1NX9, 1RYY, 2B4K, and 2B9V.

References

Kato K, Kawahara K, Takahashi T & Kakinuma A (1980). "Purification of an alpha-amino acid ester hydrolase from Xanthomonas citri". Agric. Biol. Chem. 44: 1069–1074. doi:10.1271/bbb1961.44.1069.
Kato K, Kawahara K, Takahashi T & Kakinuma A (1980). "Substrate specificity of an alpha-amino acid ester hydrolase from Xanthomonas citri". Agric. Biol. Chem. 44: 1075–1081. doi:10.1271/bbb1961.44.1075.
Takahashi T, Yamazaki Y, Kato K (1974). "Substrate specificity of an alpha-amino acid ester hydrolase produced by Acetobacter turbidans A.T.C.C. 9325". Biochem. J. 137 (3): 497–503. PMC 1166149. PMID 4424889.

Hydrolase: esterases (EC 3.1)

3.1.1: Carboxylic
ester hydrolases

Lipase

Phospholipase
- A1
- A2
- B

3.1.2: Thioesterase

3.1.3: Phosphatase

3.1.4: Phosphodiesterase

3.1.6: Sulfatase

Nuclease (includes
deoxyribonuclease and
ribonuclease)

3.1.11-16: Exonuclease

Exodeoxyribonuclease	RecBCD

Exoribonuclease	Oligonucleotidase

3.1.21-31: Endonuclease

Endodeoxyribonuclease	Deoxyribonuclease I Deoxyribonuclease II Deoxyribonuclease IV Restriction enzyme UvrABC endonuclease

Endoribonuclease	RNase III RNase H 1 2A 2B 2C RNase P RNase A 1 2 3 4/5 RNase T1 RNA-induced silencing complex

either deoxy- or ribo-	Aspergillus nuclease S1 Micrococcal nuclease

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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