RPSBLAST alignment for GI: 254781062 and conserved domain: TIGR02539

>gnl|CDD|162909 TIGR02539, SepCysS, Sep-tRNA:Cys-tRNA synthase. Aminoacylation of tRNA(Cys) with Cys, and cysteine biosynthesis in the process, happens in Methanocaldococcus jannaschii and several other archaea by misacylation of tRNA(Cys) with O-phosphoserine (Sep), followed by modification of the phosphoserine to cysteine. In some species, direct tRNA-cys aminoacylation also occurs but this pathway is required for Cys biosynthesis. Members of this protein catalyze the second step in this two step pathway, using pyridoxal phosphate and a sulfur donor to synthesize Cys from Sep while attached to the tRNA. Length = 370
 Score = 43.6 bits (103), Expect = 8e-05
 Identities = 36/175 (20%), Positives = 76/175 (43%), Gaps = 23/175 (13%)

Query: 74  DKVRRFINASSVKEIIFTRSATESINLVSYGWGARHISTGDEIVLSVMEHHSNIIPWYFL 133
           + +  F+     +    T  A E    V +         GD +VL  + H+++    Y  
Sbjct: 58  EDLAEFLGMDEAR---VTHGAREGKFAVMHALCKE----GDWVVLDGLAHYTS----YVA 106

Query: 134 RQRRGASLVWVP--------IDNQGFFH-IDEFKNRLTERTKLIAITHMSNVLGTVIPIK 184
            +R G ++  VP        +D +G+   I+E ++   +   L  +TH+    G +    
Sbjct: 107 AERAGLNVKEVPHTGHPEYKVDPEGYGEVIEEVEDESGKPPVLALLTHVDGEYGNLPDAG 166

Query: 185 EICRIAHERNIPVLVDGSQGSVHNFVDVQDIDCDWYIITGHK---LYGPSGIGGL 236
           ++ ++  E+ +P+L++ +       V  ++I  D+ + +GHK     GP G+ G+
Sbjct: 167 KVAKVCREKGVPLLLNCAYTVGRMPVSAKEIGADFIVGSGHKSMAASGPCGVLGM 221