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URL: https://www.rcsb.org/structure/1Z28

⇱ RCSB PDB - 1Z28: Crystal Structures of SULT1A2 and SULT1A1*3: Implications in the bioactivation of N-hydroxy-2-acetylamino fluorine (OH-AAF)

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Structures from the PDB archive		1,062,058
Computed Structure Models (CSM)

 1Z28 | pdb_00001z28

Crystal Structures of SULT1A2 and SULT1A1*3: Implications in the bioactivation of N-hydroxy-2-acetylamino fluorine (OH-AAF)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 
    0.231 (Depositor), 0.231 (DCC) 
  • R-Value Work: 
    0.193 (Depositor), 0.193 (DCC) 
  • R-Value Observed: 
    0.216 (Depositor) 

Starting Model: experimental
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wwPDB Validation3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history. 

Literature

Crystal structures of SULT1A2 and SULT1A1 *3: insights into the substrate inhibition and the role of Tyr149 in SULT1A2.

Lu, J., Li, H., Zhang, J., Li, M., Liu, M.Y., An, X., Liu, M.C., Chang, W.

(2010) Biochem Biophys Res Commun 396: 429-434

  • DOI: https://doi.org/10.1016/j.bbrc.2010.04.109
  • Primary Citation Related Structures: 
    1Z28, 1Z29

  • PubMed Abstract: 

    The cytosolic sulfotransferases (SULTs) in vertebrates catalyze the sulfonation of endogenous thyroid/steroid hormones and catecholamine neurotransmitters, as well as a variety of xenobiotics, using 3'-phosphoadenosine 5'-phosphosulfate (PAPS) as the sulfonate donor. In this study, we determined the structures of SULT1A2 and an allozyme of SULT1A1, SULT1A1 *3, bound with 3'-phosphoadenosine 5'-phosphate (PAP), at 2.4 and 2.3A resolution, respectively. The conformational differences between the two structures revealed a plastic substrate-binding pocket with two channels and a switch-like substrate selectivity residue Phe247, providing clearly a structural basis for the substrate inhibition. In SULT1A2, Tyr149 extends approximately 2.1A further to the inside of the substrate-binding pocket, compared with the corresponding His149 residue in SULT1A1 *3. Site-directed mutagenesis study showed that, compared with the wild-type SULT1A2, mutant Tyr149Phe SULT1A2 exhibited a 40 times higher K(m) and two times lower V(max) with p-nitrophenol as substrate. These latter data imply a significant role of Tyr149 in the catalytic mechanism of SULT1A2.

    • Organizational Affiliation: 
    • National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China.

Macromolecule Content 

  • Total Structure Weight: 34.63 kDa 
  • Atom Count: 2,571 
  • Modeled Residue Count: 289 
  • Deposited Residue Count: 295 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Phenol-sulfating phenol sulfotransferase 1295Homo sapiensMutation(s): 0 
EC: 2.8.2.1
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UniProt & NIH Common Fund Data Resources
Find proteins for P50225 (Homo sapiens)
Explore P50225 
Go to UniProtKB:  P50225
PHAROS:  P50225
GTEx:  ENSG00000196502 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP50225
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
A3P

Query on A3P


Download:Ideal Coordinates CCD File
B [auth A]ADENOSINE-3'-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
WHTCPDAXWFLDIH-KQYNXXCUSA-N		👁 Image

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free:  0.231 (Depositor), 0.231 (DCC) 
  • R-Value Work:  0.193 (Depositor), 0.193 (DCC) 
  • R-Value Observed: 0.216 (Depositor) 
Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.24α = 90
b = 122.53β = 90
c = 43.82γ = 90
Software Package:
Software NamePurpose
MAR345data collection
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-05-30
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2023-10-25
    Changes: Data collection, Database references, Derived calculations, Refinement description

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.