>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 = 47.9 bits (114), Expect = 4e-06
 Identities = 27/98 (27%), Positives = 50/98 (51%), Gaps = 3/98 (3%)

Query: 127 VDIQALTDFLEQRNSTCGIP--MIAVMFVNNETGVIQPIKEIAQIVKEYQGILVVDAVQA 184
           VD +   + +E+     G P  +  +  V+ E G +    ++A++ +E    L+++    
Sbjct: 127 VDPEGYGEVIEEVEDESGKPPVLALLTHVDGEYGNLPDAGKVAKVCREKGVPLLLNCAYT 186

Query: 185 AGRIPLSIEEIKADFLIISSHK-LGAPVGAGALVFRED 221
            GR+P+S +EI ADF++ S HK + A    G L   E+
Sbjct: 187 VGRMPVSAKEIGADFIVGSGHKSMAASGPCGVLGMSEE 224