IUBMB Enzyme Nomenclature


Accepted name: branched primary-alkylsulfatase

Reaction: 2-butyloctyl sulfate + H2O = 2-butyloctan-1-ol + sulfate

Other name(s): DP1 (gene name); type III branched primary-alkylsulfatase

Systematic name: branched primary-alkyl sulfate ester sulfohydrolase

Comments: Sulfatase enzymes are classified as type I, in which the key catalytic residue is 3-oxo-L-alanine, type II, which are non-heme iron-dependent dioxygenases, or type III, whose catalytic domain adopts a metallo-β-lactamase fold and binds two zinc ions as cofactors. This enzyme belongs to the type III family. The enzyme, characterized from a Pseudomonas strain, is specific for branched primary-alkyl sulfate esters and does not act on linear substrates such as dodecyl sulfate. cf. EC, arylsulfatase (type I), EC, alkyl sulfatase, EC, (R)-specific secondary-alkylsulfatase (type III) and EC, linear primary-alkylsulfatase.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Ellis, A.J., Hales, S.G., Ur-Rehman, N.G. and White, G.F. Novel alkylsulfatases required for biodegradation of the branched primary alkyl sulfate surfactant 2-butyloctyl sulfate. Appl. Environ. Microbiol. 68 (2002) 31-36. [PMID: 11772605]

2. Toesch, M., Schober, M. and Faber, K. Microbial alkyl- and aryl-sulfatases: mechanism, occurrence, screening and stereoselectivities. Appl. Microbiol. Biotechnol. 98 (2014) 1485-1496. [PMID: 24352732]

[EC created 2021]

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