2A3R

Crystal Structure of Human Sulfotransferase SULT1A3 in Complex with Dopamine and 3-Phosphoadenosine 5-Phosphate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.238 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of human sulfotransferase SULT1A3 in complex with dopamine and 3'-phosphoadenosine 5'-phosphate

Lu, J.H.Li, H.T.Liu, M.C.Zhang, J.P.Li, M.An, X.M.Chang, W.R.

(2005) Biochem Biophys Res Commun 335: 417-423

  • DOI: 10.1016/j.bbrc.2005.07.091
  • Primary Citation of Related Structures:  
    2A3R

  • PubMed Abstract: 
  • The human sulfotransferase, SULT1A3, catalyzes specifically the sulfonation of monoamines such as dopamine, epinephrine, and norepinephrine. SULT1A3 also has a unique 3,4-dihydroxyphenylalanine (Dopa)/tyrosine-sulfating activity that is preferentially toward their D-form enantiomers and can be stimulated dramatically by Mn2+ ...

    The human sulfotransferase, SULT1A3, catalyzes specifically the sulfonation of monoamines such as dopamine, epinephrine, and norepinephrine. SULT1A3 also has a unique 3,4-dihydroxyphenylalanine (Dopa)/tyrosine-sulfating activity that is preferentially toward their D-form enantiomers and can be stimulated dramatically by Mn2+. To further our understanding of the molecular basis for the unique substrate specificity of this enzyme, we solved the crystal structure of human SULT1A3, complexed with dopamine and 3'-phosphoadenosine 5'-phosphate, at 2.6 A resolution and carried out autodocking analysis with D-Dopa. The structure of SULT1A3 enzyme-ligand complex clearly showed that residue Glu146 can form electrostatic interaction with dopamine and may play a pivotal role in the stereoselectivity and sulfating activity. On the other hand, residue Asp86 appeared to be critical to the Mn2+-stimulation of the Dopa/tyrosine-sulfating activity of SULT1A3, in addition to a supporting role in the stereoselectivity and sulfating activity.


    Organizational Affiliation

    National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Bejing 100101, PR China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Monoamine-sulfating phenol sulfotransferaseA, B295Homo sapiensMutation(s): 0 
Gene Names: SULT1A3STM
EC: 2.8.2.1
UniProt & NIH Common Fund Data Resources
Find proteins for P0DMM9 (Homo sapiens)
Explore P0DMM9 
Go to UniProtKB:  P0DMM9
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
A3P (Subject of Investigation/LOI)
Query on A3P

Download Ideal Coordinates CCD File 
C [auth A], E [auth B]ADENOSINE-3'-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
WHTCPDAXWFLDIH-KQYNXXCUSA-N
 Ligand Interaction
LDP (Subject of Investigation/LOI)
Query on LDP

Download Ideal Coordinates CCD File 
D [auth A], F [auth B]L-DOPAMINE
C8 H11 N O2
VYFYYTLLBUKUHU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.238 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.263α = 90
b = 123.61β = 90
c = 73.116γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
MOLREPphasing
CNSrefinement
HKL-2000data reduction

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-08-30
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance