Crystal structure of human tyrosylprotein sulfotransferase-1 complexed with PAP and C4 peptide

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.133 
  • R-Value Observed: 0.135 

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Structural basis for the broad substrate specificity of the human tyrosylprotein sulfotransferase-1.

Tanaka, S.Nishiyori, T.Kojo, H.Otsubo, R.Tsuruta, M.Kurogi, K.Liu, M.C.Suiko, M.Sakakibara, Y.Kakuta, Y.

(2017) Sci Rep 7: 8776-8776

  • DOI: https://doi.org/10.1038/s41598-017-07141-8
  • Primary Citation of Related Structures:  
    5WRI, 5WRJ

  • PubMed Abstract: 

    Tyrosylprotein sulfotransferases (TPSTs) are enzymes that catalyze post-translational tyrosine sulfation of proteins. In humans, there are only two TPST isoforms, designated TPST1 and TPST2. In a previous study, we reported the crystal structure of TPST2, which revealed the catalytic mechanism of the tyrosine sulfation reaction. However, detailed molecular mechanisms underlying how TPSTs catalyse a variety of substrate proteins with different efficiencies and how TPSTs catalyze the sulfation of multiple tyrosine residues in a substrate protein remain unresolved. Here, we report two crystal structures of the human TPST1 complexed with two substrate peptides that are catalysed by human TPST1 with significantly different efficiencies. The distinct binding modes found in the two complexes provide insight into the sulfation mechanism for these substrates. The present study provides valuable information describing the molecular mechanism of post-translational protein modifications catalysed by TPSTs.

  • Organizational Affiliation

    Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Hakozaki 6-10-1, Fukuoka, 812-8581, Japan.

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein-tyrosine sulfotransferase 1
A, B
320Homo sapiensMutation(s): 0 
Gene Names: TPST1
UniProt & NIH Common Fund Data Resources
Find proteins for O60507 (Homo sapiens)
Explore O60507 
Go to UniProtKB:  O60507
PHAROS:  O60507
GTEx:  ENSG00000169902 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO60507
Sequence Annotations
  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
D [auth E]
8synthetic constructMutation(s): 0 
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.178 
  • R-Value Work: 0.133 
  • R-Value Observed: 0.135 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.576α = 90
b = 155.972β = 90
c = 48.892γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-09-13
    Type: Initial release