RPSBLAST alignment for GI: 254780150 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 = 160 bits (407), Expect = 4e-40
Identities = 81/280 (28%), Positives = 136/280 (48%), Gaps = 26/280 (9%)
Query: 17 TIGHVDHGKTTLTAAITKYYSEEKKEYGDIDSAPEEKLRGITIATAHVSYETDKRFYSHI 76
T GHVDHGKTTL A+T D PEEK RG+TI + I
Sbjct: 5 TAGHVDHGKTTLLKALTGI---------AADRLPEEKKRGMTIDLGFAYFPLPDYRLGFI 55
Query: 77 DCPGHADYVKNMITGATQADGAILVCAAEDGPKPQTREHILLARQIGISSIVVYMNKVDA 136
D PGH ++ N I G D A+LV A++G QT EH+ + +GI +V + K D
Sbjct: 56 DVPGHEKFISNAIAGGGGIDAALLVVDADEGVMTQTGEHLAVLDLLGIPHTIVVITKADR 115
Query: 137 VDDDELLDISEYEIRDLLKEHKYSDDTPIIRGSALCALQGTNKELGE--DSIHALMKAVD 194
V ++E + +E ++ +L + + + I + SA T + +GE + L++++D
Sbjct: 116 V-NEEEIKRTEMFMKQILNSYIFLKNAKIFKTSAK-----TGQGIGELKKELKNLLESLD 169
Query: 195 THIPTPQRSLDAPFLMHIEGSCGIEGRGTVVTGCIKRGRIKAGSDVEIIGMGGKKLKVKC 254
+ + P M I+ + ++G GTVVTG G +K G ++ ++ + +++VK
Sbjct: 170 I------KRIQKPLRMAIDRAFKVKGAGTVVTGTAFSGEVKVGDNLRLLPI-NHEVRVK- 221
Query: 255 TDVEMFRKKLDEAIAGDNVGLLLRGVNRADVPRGRVVCAP 294
++ + ++ A AG + L L V + RG ++ P
Sbjct: 222 -AIQAQNQDVEIAYAGQRIALNLMDVEPESLKRGLLILTP 260