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Table 1 Notable genomic differences between N. equitans and Nst1

From: Insights into archaeal evolution and symbiosis from the genomes of a nanoarchaeon and its inferred crenarchaeal host from Obsidian Pool, Yellowstone National Park

Features N. equitans Nst1 Note
Split Proteins
Reverse gyrase NEQ 318-434 Nst 337-402 Same site
Glu-tRNAGln amidotransferase NEQ 245-396 Nst 197-449 Same site
Predicted RNA-binding protein NEQ 438-506 Nst 176-251 Same site
Archaeosine tRNA-guanine transglycosylase NEQ 124-305 Nst 096-232 Same site
RNA polymerase subunit B NEQ 156-173 Nst 632-633 Same site
Large helicase-related protein NEQ 003-409 Nst 172-239 Different site
DNA polymerase I NEQ 068-528 Nst 417 Not split in Nst1
Topoisomerase I NEQ 045-324 Nst 174 Not split in Nst1
P-loop ATPase-acetyltransferase fusion protein NEQ 096-495 Nst 401 Not split in Nst1
Alanyl-tRNA synthetase NEQ 211-547 Nst 054 Not split in Nst1
Diphthamide synthase sub. DPH2 - Nst 222-440 Absent in N.eq.
Uncharacterized conserved protein (arCOG04253) - Nst 474-480 Absent in N.eq.
tRNAs
cis-spliced tRNAs Ile, Met, Trp, Tyr Ile, Tyr  
trans-joined tRNAs iMet, His, Lys, Gln, Glu (2) none  
RNase P Absent Present  
Gluconeogenesis-Glycolysis Absent Present  
Polyamine biosynthesis Absent Present  
ATP synthase Present Absent  
Glutamate dehydrogenase Present Absent  
  1. * Split in other archaea also.