>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=99.43 E-value=2.8e-12 Score=101.87 Aligned_cols=151 Identities=23% Similarity=0.310 Sum_probs=90.2 Q ss_pred EECCCCCCHHHHHHHHHHHCCCCCCCCCCCEEECCCHHHHHHCCEEEEEEEEEEEECCCCCEEEEEEEECCCCCH----- Q ss_conf 980138987788999999829805444431130586779871950523279999743788438999961787300----- Q gi|254780321|r 16 IVAHIDHGKSTLADRFIQHCRGLTEREMSSQVLDNMDIERERGITIKAQTVRLNYTSTDAKDYQLNLIDTPGHVD----- 90 (606) Q Consensus 16 IiaHvDhGKTTL~d~lL~~tg~i~~~~~~~~vlD~~~~EreRGITIka~~~~~~~~~~~~~~y~iNlIDTPGH~D----- 90 (606) T Consensus 1 ivG~PNvGKSTL~N~L---t~~--~~~----v~~------~pgTTr~~~~g~~~~--~~--~~~i~~~DtpGi~~~~~~~ 61 (176) T cd01881 1 LVGLPNVGKSTLLNAL---TNA--KPK----VAN------YPFTTLEPNLGVVEV--PD--GARIQVADIPGLIEGASEG 61 (176) T ss_pred CCCCCCCCHHHHHHHH---HCC--CCE----EEC------CCCCEEEEEEEEEEE--CC--CCEEEEEECCCCCCCCHHH T ss_conf 9699988899999999---689--960----307------899676124679994--79--9669999578754573378 Q ss_pred H--HHHHHHHHHHCCEEEEEEECCCCCCHHHHH----------HHHH-------HHHCCCCEEEEECCCCCCCCCCCCHH Q ss_conf 2--799999997302689999868788655899----------9999-------99709967998326788753211338 Q gi|254780321|r 91 F--TYEVSRSLSACEGSLLVVDATQGVEAQTLA----------NVYQ-------AIDNNHEIITVLNKADLPSADPDRVK 151 (606) Q Consensus 91 F--~~EV~r~l~a~dgaiLvVdA~~Gvq~QT~~----------~~~~-------A~~~~l~~I~viNKiD~~~A~~e~v~ 151 (606) T Consensus 62 ~~~~~~~l~~~~~~d~il~vvD~~~~~~~~~~~~~~~~~~i~~el~~~~~~~~~~~~~~kp~i~v~NK~Dl~~~~--~~~ 139 (176) T cd01881 62 RGLGNQFLAHIRRADAILHVVDASEDDDIGGVDPLEDYEILNAELKLYDLETILGLLTAKPVIYVLNKIDLDDAE--ELE 139 (176) T ss_pred HHHHHHHHHHHHCCCEEEEEEECCCCCCCCCCCHHHHHHHHHHHHHHCCHHHHHHHHCCCCEEEEEECEECCCHH--HHH T ss_conf 789999998741088999999898765545445899999999999971156655543269719999686034700--315 Q ss_pred HHHHHHH-HHHHHHHHHHHHHCCCCCCHHHHHHHHHH Q ss_conf 8877555-32232100011100223200678776321 Q gi|254780321|r 152 KQIEETI-GISTEDALLVSAKTGEGIPLLLERIVQQL 187 (606) Q Consensus 152 ~ei~~~~-g~~~~~ii~vSAktG~GV~~LLd~Iv~~i 187 (606) T Consensus 140 ~~~~~~~~~~~~~~ii~iSA~~~~gi~~L~~~i~~~L 176 (176) T cd01881 140 EELVRELALEEGAEVVPISAKTEEGLDELIRAIYELL 176 (176) T ss_pred HHHHHHHHHCCCCCEEEEECCCCCCHHHHHHHHHHHC T ss_conf 9999999746899589997778879999999999659

HHsearch alignment for GI: 254780321 and conserved domain: cd01881