Updated annotation (from data): Homocysteine formation from aspartate semialdehyde (NIL/ferredoxin component) Rationale: Mutants in all three genes of this putative system are rescued by casamino acids or methionine but not by threonine. We propose that these three genes act together to enable the formation of homocysteine from asparate semialdehyde (the pathway proposed by Allen et al 2015 (PMID:25938369)). (auxotroph) Original annotation: 4Fe-4S ferredoxin iron-sulfur binding domain protein (RefSeq) Type 1: Protein-coding gene Located on scaffold 254340, - strand, nucleotides 300,268 to 300,711 See nucleotide sequence around DvMF_0262 or for all of scaffold 254340