TABLE 2.

Metabolic genes of defined function on the R7A symbiosis island

Msi number functional category and gene no.Gene/operon mnemonicGene product(s) or predicted function
Amino acid metabolism related to 1-carbon metabolism
    msi156ltaMLow specificity l-threonine aldolase
    msi160metE5-methyltetrahydropteroyltriglutamate-homocysteine methyltransferase
    msi166metKSAM synthetase
    msi167glyASerine hydroxymethyltransferase
    msi204cysMCysteine synthase
    msi237-msi234soxBDAG1Sarcosine oxidase
    msi246kbl2-amino-3-ketobutyrate coenzyme A ligase
    msi256-msi253soxBDAG2Sarcosine oxidase
Other amino acid metabolism
    msi043dapADihydrodipicolinate synthase
    msi182maaLMethylaspartate ammonia-lyase
    msi203Fusion protein containing putative ligase and arginosuccinate lyase
    msi323asnBAsparagine synthetase
    msi326aatAAspartate aminotransferase
Carbon metabolism
    msi040cahA-type carbonic anhydrase
    msi177fumAFumarate hydratase Class I
    msi282adcAcetoacetate decarboxylase
    msi327pepMPhosphoenolpyruvate phosphomutase
Phosphate metabolism
    msi311-msi305phnGHIJKMLPhosphonate degradation
Cofactor synthesis
    msi363-msi365nadABCNicotinate biosynthesis
    msi367-msi371bioBFDAZBiotin biosynthesis
    msi372panDAspartate 1-decarboxylase
    msi389-msi394thiCOSGEDThiamine biosynthesis