The following are corrections and additional information for mutation locations reported in Sandoval et al., 2014, eLife 3: e03558 FBrf0226654). MarfA is an insertion of an A at amino acid position 493 (after the nucleotide string CAATATGCCCTTCCA). This results in the addition of 93 novel amino acids, followed by a premature stop. MarfB - Correction, should be Amino acid replacement: I221N. MarfG - Correction, should be Amino acid replacement: Q66@. For MarfE, MarfF, and MarfH 1. Using Marf RD or PD Marf E is mutated at position 695 from a V to an E (Val to Glu) Marf F is mutated at position 708 from a L to an P (Leu to Pro) Marf H is mutated at position 674 from a V to an D (Val to Asp) 2. Using Marf RB and Marf RC or PB and PC Marf E is mutated at position 691 from a V to an E (Val to Glu) Marf F is mutated at position 704 from a L to an P (Leu to Pro) Marf H is mutated at position 670 from a V to an D (Val to Asp)