ebr:ECB_01450 K20265 glutamate:GABA antiporter | (GenBank) xasA; predicted glutamate:gamma-aminobutyric acid antiporter ebr:ECB_01451 K01580 glutamate decarboxylase [EC:4.1.1.15] | (GenBank) gadB; glutamate decarboxylase B, PLP-dependent