Structure of PDB 1k3u Chain A

Receptor sequence
>1k3uA (length=268) [Search protein sequence]
MERYENLFAQLNDRREGAFVPFVTLGDPGIEQSLKIIDTLIDAGADALEL
GVPFSDPLADGPTIQNANLRAFAAGVTPAQCFEMLALIREKHPTIPIGLL
MYANLVFNNGIDAFYARCEQVGVDSVLVADVPVEESAPFRQAALRHNIAP
IFICPPNADDDLLRQVASYGRGYTYLLSRSGVTGAENRGALPLHHLIEKL
KEYHAAPALQGFGISSPEQVSAAVRAGAAGAISGSAIVKIIEKNLASPKQ
MLAELRSFVSAMKAASRA
3D structure
PDB1k3u Crystal structures of a new class of allosteric effectors complexed to tryptophan synthase.
ChainA
Resolution1.7 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) E49 D60 Y175
Catalytic site (residue number reindexed from 1) E49 D60 Y175
Enzyme Commision number 4.2.1.20: tryptophan synthase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 IAD A F22 D60 I64 L100 Y175 T183 G184 F212 G213 I214 I232 S233 G234 S235 F22 D60 I64 L100 Y175 T183 G184 F212 G213 I214 I232 S233 G234 S235
Gene Ontology
Molecular Function
GO:0004834 tryptophan synthase activity
GO:0005515 protein binding
GO:0016829 lyase activity
Biological Process
GO:0000162 tryptophan biosynthetic process
GO:0006568 tryptophan metabolic process
Cellular Component
GO:0005829 cytosol

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1k3u, PDBe:1k3u, PDBj:1k3u
PDBsum1k3u
PubMed11756456
UniProtP00929|TRPA_SALTY Tryptophan synthase alpha chain (Gene Name=trpA)

[Back to BioLiP]