DP00731: Glutathione S-transferase alpha-1FASTA viewXML view

General information
DisProt:DP00731
Name:Glutathione S-transferase alpha-1
Synonym(s):GSTA1_RAT
GST 1-1
GST 1a-1a
GST A1-1
GST B
Glutathione S-transferase Ya-1
Ligandin
GST Ya1
First appeared in release:Release 6.01 (10/15/2012)
UniProt:P00502
UniGene: 
SwissProt: GSTA1_RAT
TrEMBL:  
NCBI (GI):  
Source organism:Rattus norvegicus (Rat)
Sequence length:222
Percent disordered:6%
Homologues: 


Native sequence

        10         20         30         40         50         60
         |          |          |          |          |          |
MSGKPVLHYF NARGRMECIR WLLAAAGVEF DEKFIQSPED LEKLKKDGNL MFDQVPMVEI - 60
DGMKLAQTRA ILNYIATKYD LYGKDMKERA LIDMYTEGIL DLTEMIMQLV ICPPDQKEAK - 120
TALAKDRTKN RYLPAFEKVL KSHGQDYLVG NRLTRVDIHL LELLLYVEEF DASLLTSFPL - 180
LKAFKSRISS LPNVKKFLQP GSQRKLPVDA KQIEEARKIF KF



Functional narrative    

Function: Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles.
CATALYTIC ACTIVITY: RX + glutathione = HX + R-S-glutathione.
SUBUNIT: Homodimer.


Subcellular Location: Cytoplasm.
MISCELLANEOUS: In addition to its enzymatic activity, the homodimer of Ya chains, called ligandin, binds various organic anions, xenobiotics, and azocarcinogen dyes.
SIMILARITY: Belongs to the GST superfamily. Alpha family.
SIMILARITY: Contains 1 GST C-terminal domain.
SIMILARITY: Contains 1 GST N-terminal domain.
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Region 1: 210-222

Map of ordered and disordered regions







Note: 'Mouse' over a region to see the start and stop residues. Click on a region to see detailed information.


Region 1
Type:Disordered
Name:C-terminal region
Location:210 - 222
Length:13
Region sequence:

AKQIEEARKIFKF

Modification type: Mutant
PDB: 1EV4:A, 1EV9:A
Structural/functional type: Function arises via a disorder to order transition
Functional classes: Molecular recognition effectors
Functional subclasses: Intraprotein interaction
Substrate/ligand binding
Detection methods:
  1. X-ray crystallography (298 K; pH: 10.5; 3-cyclohexylamino-1-propane sulfonic acid (CAPS) 0.1 M; GSTA1-1 protein (W21F mutant (PDB 1EV9)) 10 mg/mL; lithium sulfate 0.2 M; saturated ammonium sulfate 50 %)

  2. X-ray crystallography (298 K; pH: 6.5; GSTA1-1 protein (W21F, F220Y mutant (PDB 1EV4)) 10 mg/mL; HEPES 0.1 M; saturated ammonium sulfate 60 %; S-hexyl glutathione 1 mM)

  3. Fluorescence polarization/anisotropy (298 K; pH: 6.5; GSH, GS-EA, GSO3-, S-hexyl GSH or EA (0.2 to 200uM); GST protein (F222W mutant) 2 uM; MES (buffer) 100 mM)

References:
  1. Adman ET, Le Trong I, Stenkamp RE, Nieslanik BS, Dietze EC, Tai G, Ibarra C, Atkins WM. "Localization of the C-terminus of rat glutathione S-transferase A1-1: crystal structure of mutants W21F and W21F/F220Y." Proteins. 2001; 42(2): 192-200. PubMed: 11119643

Comments:
 



Comments


AV sent 10/1/2012 (PMID:11119643)


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