>cd01881 Obg_like The Obg-like subfamily consists of five well-delimited, ancient subfamilies, namely Obg, DRG, YyaF/YchF, Ygr210, and NOG1. Four of these groups (Obg, DRG, YyaF/YchF, and Ygr210) are characterized by a distinct glycine-rich motif immediately following the Walker B motif (G3 box). Obg/CgtA is an essential gene that is involved in the initiation of sporulation and DNA replication in the bacteria Caulobacter and Bacillus, but its exact molecular role is unknown. Furthermore, several OBG family members possess a C-terminal RNA-binding domain, the TGS domain, which is also present in threonyl-tRNA synthetase and in bacterial guanosine polyphosphatase SpoT. Nog1 is a nucleolar protein that might function in ribosome assembly. The DRG and Nog1 subfamilies are ubiquitous in archaea and eukaryotes, the Ygr210 subfamily is present in archaea and fungi, and the Obg and YyaF/YchF subfamilies are ubiquitous in bacteria and eukaryotes. The Obg/Nog1 and DRG subfamilies appear to

Probab=99.97 E-value=4.6e-31 Score=228.24 Aligned_cols=157 Identities=24% Similarity=0.303 Sum_probs=115.7 Q ss_pred EEECCCCCHHHHHHHHHCCCCCCCHHHHHHHHHCCCCEEEEC-CEEEEEEECHHCCCCCCCCCHHHHHHCCCCCEEEECC Q ss_conf 640356425678876520121100024566542023114203-4069998171104444430001110001210012012 Q gi|255764471|r 208 VVGRPNVGKSTLINRLLGYNRLLTGSQSGITRDSVSISWNWK-NHPIEIFDTAGMRKPSRITESLEQKTVKKSMQSVRTC 286 (470) Q Consensus 208 ~~G~pN~GKStl~N~l~~~~r~ivs~~~GtTrD~i~~~~~~~-~~~~~liDTaGirkk~~~~~~~E~~s~~~t~~~i~~a 286 (470) T Consensus 1 ivG~PNvGKSTL~N~Lt~~~-~~v~~~pgTTr~~~~g~~~~~~~~~i~~~DtpGi~~~~~~~~~~----~~~~l~~~~~~ 75 (176) T cd01881 1 LVGLPNVGKSTLLNALTNAK-PKVANYPFTTLEPNLGVVEVPDGARIQVADIPGLIEGASEGRGL----GNQFLAHIRRA 75 (176) T ss_pred CCCCCCCCHHHHHHHHHCCC-CEEECCCCCEEEEEEEEEEECCCCEEEEEECCCCCCCCHHHHHH----HHHHHHHHHCC T ss_conf 96999888999999996899-60307899676124679994799669999578754573378789----99999874108 Q ss_pred EEEEEECCCCCCCHHHHH------HHHH-----------HHHCCCCCCCEEEECCCCCCCHHHHHHHHHHHCCCCCCCCC Q ss_conf 059984553212202122------3200-----------00003576655894422335415556665420133320048 Q gi|255764471|r 287 ETTIVLLDATIPFEKQDL------RIVD-----------SVFNTGHAVVLALNKWDMVSDKLNLLQDLRTKAIKNLPQIG 349 (470) Q Consensus 287 dvvi~viDa~~~~~~qd~------~i~~-----------~i~~~~k~~iiv~NK~Dli~~~~~~~~~~~~~~~~~~~~~~ 349 (470) T Consensus 76 d~il~vvD~~~~~~~~~~~~~~~~~~i~~el~~~~~~~~~~~~~~kp~i~v~NK~Dl~~~~~~~-~~~----~~~~~~~~ 150 (176) T cd01881 76 DAILHVVDASEDDDIGGVDPLEDYEILNAELKLYDLETILGLLTAKPVIYVLNKIDLDDAEELE-EEL----VRELALEE 150 (176) T ss_pred CEEEEEEECCCCCCCCCCCHHHHHHHHHHHHHHCCHHHHHHHHCCCCEEEEEECEECCCHHHHH-HHH----HHHHHHCC T ss_conf 8999999898765545445899999999999971156655543269719999686034700315-999----99997468 Q ss_pred CCCCCCCCCCCCCCHHHHHHHHHHH Q ss_conf 8311123453334858999999999 Q gi|255764471|r 350 DIYINTISGRTGEGLDDLMVSVLEI 374 (470) Q Consensus 350 ~~~i~~iSA~~g~gi~~l~~~i~~~ 374 (470) T Consensus 151 ~~~ii~iSA~~~~gi~~L~~~i~~~ 175 (176) T cd01881 151 GAEVVPISAKTEEGLDELIRAIYEL 175 (176) T ss_pred CCCEEEEECCCCCCHHHHHHHHHHH T ss_conf 9958999777887999999999965

HHsearch alignment for GI: 255764471 and conserved domain: cd01881