Annotation for this protein is in progress - please check future releases for more complete information



DP00252: Tryptophan synthase alpha chainFASTA viewXML view

General information
DisProt:DP00252
Name:Tryptophan synthase alpha chain
Synonym(s):TRPA_ECOLI
EC 4.2.1.20
First appeared in release:Release 3.0 (02/17/2006)
UniProt:P0A877
UniGene: 
SwissProt: TRPA_ECOLI
TrEMBL:  
NCBI (GI): 67473577
Source organism:Escherichia coli
Sequence length:268
Percent disordered:4%
Homologues: 


Native sequence

        10         20         30         40         50         60
         |          |          |          |          |          |
MERYESLFAQ LKERKEGAFV PFVTLGDPGI EQSLKIIDTL IEAGADALEL GIPFSDPLAD - 60
GPTIQNATLR AFAAGVTPAQ CFEMLALIRQ KHPTIPIGLL MYANLVFNKG IDEFYAQCEK - 120
VGVDSVLVAD VPVEESAPFR QAALRHNVAP IFICPPNADD DLLRQIASYG RGYTYLLSRA - 180
GVTGAENRAA LPLNHLVAKL KEYNAAPPLQ GFGISAPDQV KAAIDAGAAG AISGSAIVKI - 240
IEQHINEPEK MLAALKVFVQ PMKAATRS

Region 3: 59-63 Region 1: 57-64 Region 2: 184-185

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: 
Location:57 - 64
Length:8
Region sequence:

PLADGPTI

Modification type:  
PDB:  
Structural/functional type: Function arises via an order to disorder transition
Functional classes: Molecular assembly
Functional subclasses: Protein-protein binding
Detection methods:
  1. X-ray crystallography (288 K; ammonium sulfate 1.8 M; potassium phosphate (buffer (pH 7.0)) 5 mM; protein (solution (20 mg/mL)) 1 uL; sodium cacodylate (pH 6.5) 0.1 M)

References:
  1. Nishio K, Morimoto Y, Ishizuka M, Ogasahara K, Tsukihara T, Yutani K. "Conformational changes in the alpha-subunit coupled to binding of the beta 2-subunit of tryptophan synthase from Escherichia coli: crystal structure of the tryptophan synthase alpha-subunit alone." Biochemistry. 2005; 44(4): 1184-92. PubMed: 15667212

Comments:
These densities were unclear in molecule A only. The region stayed disordered when in a complex with molecule B.




Region 2
Type:Disordered
Name: 
Location:184 - 185
Length:2
Region sequence:

GA

Modification type:  
PDB:  
Structural/functional type: Relationship to function unknown
Functional classes: Unknown
Functional subclasses: Unknown
Detection methods:
  1. X-ray crystallography (288 K; ammonium sulfate 1.8 M; potassium phosphate (buffer (pH 7.0)) 5 mM; protein (solution (20 mg/mL)) 1 uL; sodium cacodylate (pH 6.5) 0.1 M)

References:
  1. Nishio K, Morimoto Y, Ishizuka M, Ogasahara K, Tsukihara T, Yutani K. "Conformational changes in the alpha-subunit coupled to binding of the beta 2-subunit of tryptophan synthase from Escherichia coli: crystal structure of the tryptophan synthase alpha-subunit alone." Biochemistry. 2005; 44(4): 1184-92. PubMed: 15667212

Comments:
These densities were unclear in molecules A and B.




Region 3
Type:Disordered
Name: 
Location:59 - 63
Length:5
Region sequence:

ADGPT

Modification type:  
PDB:  
Structural/functional type: Function arises via an order to disorder transition
Functional classes: Molecular assembly
Functional subclasses: Protein-protein binding
Detection methods:
  1. X-ray crystallography (288 K; ammonium sulfate 1.8 M; potassium phosphate (buffer (pH 7.0)) 5 mM; protein (solution (20 mg/mL)) 1 uL; sodium cacodylate (pH 6.5) 0.1 M)

References:
  1. Nishio K, Morimoto Y, Ishizuka M, Ogasahara K, Tsukihara T, Yutani K. "Conformational changes in the alpha-subunit coupled to binding of the beta 2-subunit of tryptophan synthase from Escherichia coli: crystal structure of the tryptophan synthase alpha-subunit alone." Biochemistry. 2005; 44(4): 1184-92. PubMed: 15667212

Comments:
These densities are unclear in molecule B only. The region stayed disordered when in complex with molecule A.



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