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. 2021 Apr 26;105(9):3507–3520. doi: 10.1007/s00253-021-11288-w

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Fig. 9 — a Protein motif analysis suggested that LTTAs contain two unique aa motifs compared to E. coli SHMT enzyme. Some of aa residues are highly conserved among LTTAs. b The hydrogen bond network formed among H324 and Q325 with the residues, H207 and R366, in the active site of ObiH is shown as pink dashes. Lys-bound PLP is shown in orange