Cited by 127Enzyme Structure and FunctionLysosomal Storage Disorders ResearchProtein Structure and Dynamics

Human sulfatases: a structural perspective to catalysis

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Ghosh, D.·2007·Cellular and Molecular Life Sciences

Abstract

The sulfatase family of enzymes catalyzes hydrolysis of sulfate ester bonds of a wide variety of substrates. Seventeen genes have been identified in this class of sulfatases, many of which are associated with genetic disorders leading to reduction or loss of function of the corresponding enzymes. Amino acid sequence homology suggests that the enzymes have similar overall folds, mechanisms of action, and bivalent metal ion-binding sites. A catalytic cysteine residue, strictly conserved in prokaryotic and eukaryotic sulfatases, is post-translationally modified into a formylglycine. Hydroxylation of the formylglycine residue by a water molecule forming the activated hydroxylformylglycine (a formylglycine hydrate or a gem-diol) is a necessary step for the enzyme's sulfatase activity. Crystal structures of three human sulfatases, arylsulfatases A and B(ARSA and ARSB), and estrone/dehydroepiandrosterone sulfatase or steroid sulfatase (STS), also known as arylsulfatase C, have been determined. While ARSA and ARSB are water-soluble enzymes, STS has a hydrophobic domain and is an integral membrane protein of the endoplasmic reticulum. In this article, we compare and contrast sulfatase structures and revisit the proposed catalytic mechanism in light of available structural and functional data. Examination of the STS active site reveals substrate-specific interactions previously identified as the estrogen-recognition motif. Because of the proximity of the catalytic cleft of STS to the membrane surface, the lipid bilayer has a critical role in the constitution of the active site, unlike other sulfatases.

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Crossref · 10.1007/s00018-007-7175-y

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  • STS is a membrane-bound enzyme on the luminal side of the endoplasmic reticulum and ubiquitously expressed in all human tissues.

    “STS is a membrane-bound enzyme on the luminal side of the endoplasmic reticulum (Ghosh, 2007) and ubiquitously expressed in all human tissues (Reed et al., 2005).”

    From Intracrine androgen biosynthesis, metabolism and action revisited (2018) · cites this paper as Ghosh, 2007

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Authors
Ghosh, D.
Affiliations
Hauptman-Woodward Medical Research Institute (US)
Corresponding author
Ghosh, D.
Venue
Cellular and Molecular Life Sciences
Published
2007-06-11
Volume
64
Issue
15
Pages
2013-2022
ISSN
  • 1420-682X (ISSN-L)
  • 1420-9071
OpenAlex
W2007796873
Cited by
123
References
52
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 8 · 2022: 4 · 2021: 3 · 2020: 9 · 2019: 5 · 2018: 5 · 2017: 2 · 2016: 8 · 2015: 7 · 2014: 12 · 2013: 11 · 2012: 5
FWCI
4.97
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Life Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of General Medical Sciences (R01GM062794, GM62794)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
sulfatase, enzyme mechanism, formylglycine, arylsulfatase A, arylsulfatase B, steroid sulfatase, estrone sulfatase, arylsulfatase C, crystal structure, active site, endoplasmic reticulum membrane protein, lipid bilayers, genetic disorders
MeSH terms
Amino Acids, Breast Neoplasms, Catalysis, Cerebroside-Sulfatase, Female, Humans, Male, Models, Molecular, Pregnancy, Prostatic Neoplasms, Sulfatases, Protein Structure, Tertiary, Crystallography, X-Ray, N-Acetylgalactosamine-4-Sulfatase, Catalytic Domain, Steryl-Sulfatase, Static Electricity, In Vitro Techniques

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