RPSBLAST alignment for GI: 254780321 and conserved domain: TIGR00475
>gnl|CDD|129567 TIGR00475, selB, selenocysteine-specific elongation factor SelB. In prokaryotes, the incorporation of selenocysteine as the 21st amino acid, encoded by TGA, requires several elements: SelC is the tRNA itself, SelD acts as a donor of reduced selenium, SelA modifies a serine residue on SelC into selenocysteine, and SelB is a selenocysteine-specific translation elongation factor. 3-prime or 5-prime non-coding elements of mRNA have been found as probable structures for directing selenocysteine incorporation. This model describes the elongation factor SelB, a close homolog rf EF-Tu. It may function by replacing EF-Tu. A C-terminal domain not found in EF-Tu is in all SelB sequences in the seed alignment except that from Methanococcus jannaschii. This model does not find an equivalent protein for eukaryotes. Length = 581
Score = 94.9 bits (236), Expect = 6e-20
Identities = 64/242 (26%), Positives = 104/242 (42%), Gaps = 28/242 (11%)
Query: 13 NFSIVAHIDHGKSTLADRFIQHCRGLTEREMSSQVLDNMDIERERGITIKAQTVRLNYTS 72
+ H+DHGK+TL + LT D + E++RG+TI L +
Sbjct: 2 IIATAGHVDHGKTTLL-------KALTGIAA-----DRLPEEKKRGMTID-----LGFAY 44
Query: 73 TDAKDYQLNLIDTPGHVDFTYEVSRSLSACEGSLLVVDATQGVEAQTLANVYQA-IDNNH 131
DY+L ID PGH F + +LLVVDA +GV QT ++ +
Sbjct: 45 FPLPDYRLGFIDVPGHEKFISNAIAGGGGIDAALLVVDADEGVMTQTGEHLAVLDLLGIP 104
Query: 132 EIITVLNKAD-LPSADPDRVKKQI----EETIGISTEDALLVSAKTGEGIPLLLERIVQQ 186
I V+ KAD + + R + + I + SAKTG+GI L + + +
Sbjct: 105 HTIVVITKADRVNEEEIKRTEMFMKQILNSYIFLKNAKIFKTSAKTGQGIGELKKEL-KN 163
Query: 187 LPSPTSPEGANAPLKALLIDSWYNSYLGVMVLVR--IINGQLTKGQSIRLMGTNAKYQVE 244
L + PL+ + ID + G +V +G++ G ++RL+ N + +V+
Sbjct: 164 LLESLDIKRIQKPLR-MAIDRAF-KVKGAGTVVTGTAFSGEVKVGDNLRLLPINHEVRVK 221
Query: 245 RI 246
I
Sbjct: 222 AI 223