>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=99.94 E-value=6.6e-27 Score=206.50 Aligned_cols=137 Identities=26% Similarity=0.304 Sum_probs=105.9 Q ss_pred EECCCCCCHHHHHHHHHCCHHCCCCCCCCCCEEECCCCCCCC-CEEEEEEECCHHCCCCHHHHHHHHHHHHHHHHHHCCE Q ss_conf 311466318889999855200023454687211000124568-3589995081000241035666678889985030110 Q gi|254780809|r 224 ILGHSNAGKSSLFNALAKKDVAIVTDIPGTTRDVLTIDLDLE-GYLVKISDTAGIRETDDIVEKEGIKRTFLEVENADLI 302 (440) Q Consensus 224 i~G~pN~GKSSL~N~L~~~~~aIVs~~~GTTRD~i~~~~~i~-g~~~~l~DTaGir~t~d~IE~~GI~ra~~~i~~aDli 302 (440) T Consensus 1 ivG~PNvGKSTL~N~Lt~~~-~~v~~~pgTTr~~~~g~~~~~~~~~i~~~DtpGi~~~~~~~~~~-~~~~l~~~~~~d~i 78 (176) T cd01881 1 LVGLPNVGKSTLLNALTNAK-PKVANYPFTTLEPNLGVVEVPDGARIQVADIPGLIEGASEGRGL-GNQFLAHIRRADAI 78 (176) T ss_pred CCCCCCCCHHHHHHHHHCCC-CEEECCCCCEEEEEEEEEEECCCCEEEEEECCCCCCCCHHHHHH-HHHHHHHHHCCCEE T ss_conf 96999888999999996899-60307899676124679994799669999578754573378789-99999874108899 Q ss_pred EECCCCCCHHH---------HH----------------HHCCCCCCCCCCCCCCCCCCCH-------------HHHHHHH Q ss_conf 20135898566---------34----------------3128985322223334465420-------------0000133 Q gi|254780809|r 303 LLLKEINSKKE---------IS----------------FPKNIDFIFIGTKSDLYSTYTE-------------EYDHLIS 344 (440) Q Consensus 303 l~v~D~~~~~~---------~~----------------~~~~~~~i~V~NK~Dl~~~~~~-------------~~~~~IS 344 (440) T Consensus 79 l~vvD~~~~~~~~~~~~~~~~~~i~~el~~~~~~~~~~~~~~kp~i~v~NK~Dl~~~~~~~~~~~~~~~~~~~~~ii~iS 158 (176) T cd01881 79 LHVVDASEDDDIGGVDPLEDYEILNAELKLYDLETILGLLTAKPVIYVLNKIDLDDAEELEEELVRELALEEGAEVVPIS 158 (176) T ss_pred EEEEECCCCCCCCCCCHHHHHHHHHHHHHHCCHHHHHHHHCCCCEEEEEECEECCCHHHHHHHHHHHHHHCCCCCEEEEE T ss_conf 99998987655454458999999999999711566555432697199996860347003159999999746899589997 Q ss_pred HHHHHHHHHHHHHHHHHH Q ss_conf 332323589999999996 Q gi|254780809|r 345 SFTGEGLEELINKIKSIL 362 (440) Q Consensus 345 aktg~Gi~~L~~~I~~~l 362 (440) T Consensus 159 A~~~~gi~~L~~~i~~~L 176 (176) T cd01881 159 AKTEEGLDELIRAIYELL 176 (176) T ss_pred CCCCCCHHHHHHHHHHHC T ss_conf 778879999999999659

HHsearch alignment for GI: 254780809 and conserved domain: cd01881