>cd06452 SepCysS Sep-tRNA:Cys-tRNA synthase. This family belongs to the pyridoxal phosphate (PLP)-dependent aspartate aminotransferase superfamily (fold I). Cys-tRNA(Cys) is produced by O-phosphoseryl-tRNA synthetase which ligates O-phosphoserine (Sep) to tRNA(Cys), and Sep-tRNA:Cys-tRNA synthase (SepCysS) converts Sep-tRNA(Cys) to Cys-tRNA(Cys), in methanogenic archaea. SepCysS forms a dimer, each monomer is composed of a large and small domain; the larger, a typical pyridoxal 5'-phosphate (PLP)-dependent-like enzyme fold. In the active site of each monomer, PLP is covalently bound to a conserved Lys residue near the dimer interface.

Probab=93.60 E-value=0.5 Score=27.68 Aligned_cols=153 Identities=16% Similarity=0.215 Sum_probs=86.9 Q ss_pred CCCCCCCCCCCHHHHHHHHHHHHHHCCEEEEECCCHHHHHHH--HHH---CCEEEECHHHCCCHHHHHHHHHC-CCEEEE Q ss_conf 663222456712488899988665287688522889999876--502---15788225762899999998505-977998 Q gi|254780669|r 90 SSLAGKRGVGLKKGREIFRDLKKKYGFPILTDVHTEQQCEAI--ADS---VDILQIPALLCRQTDLLTAAAQT-GRVINV 163 (301) Q Consensus 90 tS~~sfrG~Gle~gL~il~e~k~~~glpv~TeV~~~~~~e~~--~~~---vDilQIgA~~~rqtdLl~a~a~t-~kpV~i 163 (301) T Consensus 36 ~~ld~~~~P~i~efe---~~aAeflG~d~A~~V~Ggt~Gnqa~i~t~c~~GD~VIv-~~naH~S~~-~a~~laG~~~~~v 110 (361) T cd06452 36 GRLDEIEKPPIKDFH---HDLAEFLGMDEARVTPGAREGKFAVMHSLCEKGDWVVV-DGLAHYTSY-VAAERAGLNVREV 110 (361) T ss_pred CCCCCCCCCCHHHHH---HHHHHHCCCCEEEEECCCCHHHHHHHHHHHCCCCEEEE-CCCCHHHHH-HHHHHCCCEEEEE T ss_conf 653347699889999---99998719966999468520899999998479988985-575128899-8888638469995 Q ss_pred ECC----CCCCHHHHHHHHHHHHH-CCCC-CEEEEECCCCCCCHHHCCCCCCCHHH-HHHCCCEEECHHHHHHHCCCCCC Q ss_conf 367----77899999999999972-5878-08995146544401000000010688-85187168711777421223453 Q gi|254780669|r 164 KKG----QFLSPWEMHNILQKLHA-HGAK-DVLFCERGTSFGYNTLVTDMRSIPIM-TSMGVPVIFDASHSVQQPGIHGN 236 (301) Q Consensus 164 Kkg----q~~s~~e~~~a~eki~~-~Gn~-~i~lcERG~~fgy~~lvvD~~~i~~l-k~~~~PVi~D~SHs~q~p~~~~~ 236 (301) T Consensus 111 ~~~~~~~~~i~pe~~~~~Iee~~~e~g~~p~Lilit-~~dy~yG~-~~dl~~I~~iah~y~iPvlvD~A~~~-------- 180 (361) T cd06452 111 PNTGHPEYHITPEGYAEVIEEVKDEFGKPPALALLT-HVDGNYGN-LHDAKKIAKVCHEYGVPLLLNGAYTV-------- 180 (361) T ss_pred CCCCCCCCCCCHHHHHHHHHHHHHHHCCCCEEEEEE-CCCCCCCC-CCCHHHHHHHHHHCCCCEEECCCCCC-------- T ss_conf 677685665188999999999998618996499996-67877366-31379999999985996897154224-------- Q ss_pred CCCCCHHHHHHHHHHHHHHCCCEEEEEECC Q ss_conf 212638899999999997189889998369 Q gi|254780669|r 237 CSGGERQYIVPLAKAAVAIGIAGIFLETHQ 266 (301) Q Consensus 237 ~~gG~r~~v~~la~aa~a~G~dGlfiE~Hp 266 (301) T Consensus 181 ---g~------lpv~a~~~gaD~v~~s~hK 201 (361) T cd06452 181 ---GR------MPVSGKELGADFIVGSGHK 201 (361) T ss_pred ---CC------CCCCHHHCCCCEEEEECCC T ss_conf ---75------7987545079689986565

HHsearch alignment for GI: 254780669 and conserved domain: cd06452