Updated annotation (from data): lysine/tyrosine outer membrane transporter, TonB-dependent receptor component Rationale: Specifically important in nitrogen source L-Lysine; nitrogen source L-tyrosine disodium salt. Echvi_4214 is a TonB-dependent outer membrane transporter that is required for utilization of lysine. Mutants also have a defect in tyrosine utilization. It probably functions with Echvi_4215, which is cofit and part of a conserved gene cluster. Inner membrane protein Echvi_4216 (PFam PepSY_TM) is also conserved nearby but does not have a phenotype; it may have a regulatory role. Original annotation: Outer membrane receptor proteins, mostly Fe transport Type 1: Protein-coding gene Located on scaffold Echvi_Contig97.1, + strand, nucleotides 5,046,074 to 5,048,524 See nucleotide sequence around Echvi_4214 or for all of scaffold Echvi_Contig97.1