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Table 1 Translational capacity of mitochondrially encoded tRNAs in Silene latifolia

From: Extensive loss of translational genes in the structurally dynamic mitochondrial genome of the angiosperm Silene latifolia

UUU Phe -- UCU Ser -- UAU Tyr wobble UGU Cys wobble
UUC Phe -- UCC Ser -- UAC Tyr trnY(gua) UGC Cys trnC(gca)
UUA Leu -- UCA Ser -- UAA * -- UGA * --
UUG Leu -- UCG Ser -- UAG * -- UGG Trp trnW(cca)-cp
CUU Leu -- CCU Pro wobble CAU His wobble CGU Arg --
CUC Leu -- CCC Pro wobble CAC His trnH(gug)-cp CGU Arg --
CUA Leu -- CCA Pro trnP(ugg)3 CAA Gln -- CGA Arg --
CUG Leu -- CCG Pro wobble CAG Gln -- CGG Arg --
AUU Ile -- ACU Thr -- AAU Asn wobble AGU Ser --
AUC Ile -- ACC Thr -- AAC Asn trnN(guu)-cp AGC Ser --
AUA Ile trnI(cau)1 ACA Thr -- AAA Lys -- AGA Arg --
AUG Met trnfM(cau)2 ACG Thr -- AAG Lys -- AGG Arg --
GUU Val -- GCU Ala -- GAU Asp -- GGU Gly --
GUC Val -- GCC Ala -- GAC Asp -- GGC Gly --
GUA Val -- GCA Ala -- GAA Glu trnE(uuc) GGA Gly --
GUG Val -- GCG Ala -- GAG Glu wobble GGG Gly --
  1. 1The C in the first anticodon position of trnI(cau) is assumed to be post-transcriptionally converted to lysidine, which pairs with A.
  2. 2trnfM(cau) transfers formylmethionine and therefore is assumed to recognize only the AUG start codon. The genome also contains a gene with homology to the chloroplast trnM gene (which recognizes internal AUG codons), but it has experienced a large expansion in its anticodon loop, making its functionality (and its anticodon) uncertain (Additional File 2).
  3. 3The genome contains a native trnP(ugg) gene as well as a homolog of the chloroplast trnP(ugg) gene. The chloroplast-derived copy is likely a pseudogene in S. latifolia, as it is believed to be in some other angiosperm mitochondrial genomes [90, 93]. Its anticodon loop has experienced multiple substitutions, including one that converts the ancestral UGG anticodon to AGG (Additional File 2).