Gene: AT5G38530 (Arabidopsis thaliana)

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Gene Identifier
Transcript Identifier
Gene Type
Coding gene
5 : 15424097-15426294 : positive


Gene family
(33 genes in 27 species)
specific family

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tryptophan synthase beta type 2
Curated Summary
TSBtype2 encodes a type 2 tryptophan synthase beta subunit that catalyzes a condensation reaction between serine and indole to generate tryptophan.It appears to form a homodimer. Its biological role has not yet been determined, but it has a very high affinity for indole which may be involved in allowing TSBtype2 to carefully limit free indole build-up. But, to date no overall change in plant morphology or seedling root growth have been observed in tsbtype2 mutants, indicating that this gene is not essential under optimum conditions. n most organs, TSBtype2 is transcripts are expressed at a lower level than TSB1 but in dry seeds they are expressed at comparable levels.
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Identifier Name
aliastryptophan synthase beta type 2





Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0000162IDA, ISS, IEAGene Ontologytryptophan biosynthetic process1 2
GO:0046219IEAPLAZA Homologyindolalkylamine biosynthetic processHOM03D006698

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0004834ISS, IEAGene Ontologytryptophan synthase activity1
GO:0042803IDAGene Ontologyprotein homodimerization activity1
GO:0052684IDAGene OntologyL-serine hydro-lyase (adding indole, L-tryptophan-forming) activity1
GO:0030170IEAInterPropyridoxal phosphate binding

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0009507ISMGene Ontologychloroplast1

Color Legend

Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR006316Tryptophan synthase, beta chain-like
IPR023026Tryptophan synthase beta chain/beta chain-like
IPR001926Tryptophan synthase beta subunit-like PLP-dependent enzymes superfamily

Mapman id Description acid metabolism.synthesis.aromatic aa.tryptophan.tryptophan synthase
No SignalP domains detected for this gene.