Protein
Cytoplasmic tRNA 2-thiolation protein 2
Organism
Meyerozyma guilliermondii (strain ATCC 6260 / CBS 566 / DSM 6381 / JCM 1539 / NBRC 10279 / NRRL Y-324)
Function
Plays a central role in 2-thiolation of mcm(5)S(2)U at tRNA wobble positions of tRNA(Lys), tRNA(Glu) and tRNA(Gln). May act by forming a heterodimer with NCS6 that ligates sulfur from thiocarboxylated URM1 onto the uridine of tRNAs at wobble position. Prior mcm(5) tRNA modification by the elongator complex is required for 2-thiolation. May also be involved in protein urmylation.
Similarity
Belongs to the CTU2/NCS2 family.
Sequence
MSLAVEYISDKTPCQRCSTKDAVLLARRENYCGDCFIRFIRGKQRRSMQDEAYKVKYKTVENPHRVLLALSGGSSSLVLLDAVASLLQEQAGQHGGRQGFALTVVNVDERERLKLDKSFQDIISELKSRYLPVDIDFVSLDYDMYVDGRLLHHIKVASDFSSYSIPLNKGTNINDILKGCNSKSSEEDLLSIILNELLLKTAITHQCGTLLYGHSMTRLADEVLALTIKGRGSTIHSSVLDHTEEISGQTINVKYPLRDVLMGEIEAYCKLAKLDSVVMSSTIPDPVINKNKTVRGLTAQYFRQLDATGYSSTASTVVRTAAKLAAPTVGTKSGTCKVCGVEIRQDPHQWLRRITVAENEKVENNSEESGEIGADKKEDVGEQIDLCYGCTVTIGDAPSFRWPLSDKDIIAEYTLDSDED