>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=99.34 E-value=2.2e-11 Score=93.98 Aligned_cols=151 Identities=21% Similarity=0.260 Sum_probs=91.7 Q ss_pred EECCCCCCHHHHHHHHHHHCCCCCCCCCCCCEECCCCHHHHHCCCEEEEEEEEEEEC-CEEEEEECCCCCCC-C------ Q ss_conf 985468987788999999839614232200000388577987096064679999989-97999972898754-0------ Q gi|254780233|r 24 IIAHVDHGKTTLVDELLKQSGVFRDNQRVSERVMDCNDLEKERGITILAKVTSIVWN-DVRINIVDTPGHAD-F------ 95 (624) Q Consensus 24 IiaHvDhGKTTL~d~LL~~sG~~~~~~~v~~~vmD~~~~EreRGITI~a~~~~~~~~-~~~iNiiDTPGH~D-F------ 95 (624) T Consensus 1 ivG~PNvGKSTL~N~L---t~~~~---~v~----~------~pgTTr~~~~g~~~~~~~~~i~~~DtpGi~~~~~~~~~~ 64 (176) T cd01881 1 LVGLPNVGKSTLLNAL---TNAKP---KVA----N------YPFTTLEPNLGVVEVPDGARIQVADIPGLIEGASEGRGL 64 (176) T ss_pred CCCCCCCCHHHHHHHH---HCCCC---EEE----C------CCCCEEEEEEEEEEECCCCEEEEEECCCCCCCCHHHHHH T ss_conf 9699988899999999---68996---030----7------899676124679994799669999578754573378789 Q ss_pred HHHHHHHHHHHCEEEEEEECCCCCCHHHHHHH------HH-----------HHHCCCCEEEEEECCCCCCCCHHHHHHHH Q ss_conf 79999998742178999976878864789999------99-----------99729978999975436674025689999 Q gi|254780233|r 96 GGEVERILCMVESVVVLVDAAEGPMPQTKFVV------GK-----------ALKIGLRPIVVVNKVDRSDARADEVINEV 158 (624) Q Consensus 96 ~gEVer~l~~~DgaiLvVdA~eGv~~QT~~vl------~~-----------A~~~~l~~IvvINKiDr~~a~~~~v~~ei 158 (624) T Consensus 65 ~~~~l~~~~~~d~il~vvD~~~~~~~~~~~~~~~~~~i~~el~~~~~~~~~~~~~~kp~i~v~NK~Dl~~~~--~~~~~~ 142 (176) T cd01881 65 GNQFLAHIRRADAILHVVDASEDDDIGGVDPLEDYEILNAELKLYDLETILGLLTAKPVIYVLNKIDLDDAE--ELEEEL 142 (176) T ss_pred HHHHHHHHHCCCEEEEEEECCCCCCCCCCCHHHHHHHHHHHHHHCCHHHHHHHHCCCCEEEEEECEECCCHH--HHHHHH T ss_conf 999998741088999999898765545445899999999999971156655543269719999686034700--315999 Q ss_pred HHHHHHCCCCHHHCCHHHHHHHHHCCEECCCCCCCCCCCCHHHHHHHHCCC Q ss_conf 988862267301104266887886591646742233486413555321024 Q gi|254780233|r 159 FDLFSALDATDAQLDFPILYGSGRFGWMSDSSDGSRDQGMVPLLNLIVDHV 209 (624) Q Consensus 159 ~dlf~~l~a~de~ld~Pv~~~Sa~~G~~~~~~~~~~~~gl~~Lld~Ii~~i 209 (624) T Consensus 143 ~~~~~~------~~~~~ii~iSA~~~-----------~gi~~L~~~i~~~L 176 (176) T cd01881 143 VRELAL------EEGAEVVPISAKTE-----------EGLDELIRAIYELL 176 (176) T ss_pred HHHHHH------CCCCCEEEEECCCC-----------CCHHHHHHHHHHHC T ss_conf 999974------68995899977788-----------79999999999659

HHsearch alignment for GI: 254780233 and conserved domain: cd01881