>cd01676 RNR_II_monomer Class II ribonucleotide reductase, monomeric form. Ribonucleotide reductase (RNR) catalyzes the reductive synthesis of deoxyribonucleotides from their corresponding ribonucleotides. It provides the precursors necessary for DNA synthesis. RNRs are separated into three classes based on their metallocofactor usage. Class I RNRs, found in eukaryotes, bacteria, and bacteriophage, use a diiron-tyrosyl radical. Class II RNRs, found in bacteria, bacteriophage, algae and archaea, use coenzyme B12 (adenosylcobalamin, AdoCbl). Class III RNRs, found in anaerobic bacteria, bacteriophage, and archaea, use an FeS cluster and S-adenosylmethionine to generate a glycyl radical. Many organisms have more than one class of RNR present in their genomes. All three RNRs have a ten-stranded alpha-beta barrel domain that is structurally similar to the domain of PFL (pyruvate formate lyase). Class II RNRs are found in bacteria that can live under both aerobic and anaerobic conditions. Man

Probab=100.00 E-value=1.7e-43 Score=341.59 Aligned_cols=403 Identities=20% Similarity=0.207 Sum_probs=292.2 Q ss_pred CCCCCCCHHHHHHHHHHHHHHHHHCCC--CCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHH------------------ Q ss_conf 254766413589999899999851054--441012443111200012787642889999998------------------ Q gi|254780502|r 373 LTTVPDDLYGIFGALQENAMLAKYSGG--LGNDWTPVRGLGAHIHGTNGKSQGVIPFLKVAN------------------ 432 (954) Q Consensus 373 l~~v~Dsl~~I~~~~~~~a~isk~ggG--iG~~~s~iR~~Gs~I~g~~G~ssG~v~flk~~n------------------ 432 (954) T Consensus 165 ~~~V~DSrEGWa~Al~~Ll~-~~~~~~~~~~~D~S~IRp~Ga~lk~fGG~AsGp~pL~~~~~~i~~il~~~~g~~L~~i~ 243 (658) T cd01676 165 IIKVPDSREGWVKSVQLLLD-LYFNPAQTLIFDYSDIRPAGERLKGFGGIASGPEPLKKLHKAIAAILNDRSGKPLTSVD 243 (658) T ss_pred EEEECCCHHHHHHHHHHHHH-HHHCCCCCEEEEHHHCCCCCCEEEECCCCCCCCHHHHHHHHHHHHHHHHHCCCCCCCCH T ss_conf 99948988999999999999-97189984587866757689832326736458388999999999998764078766210 Q ss_pred ------HHHHHHHCCCCCCCCEEEEEECCCCCHHHHHHHCCCCCCHHHHHHCCCHHHCCCHHHHHHHHCCCCEEEEECCC Q ss_conf ------99999740466677247898356788999973025787302332023202034879999852128747871011 Q gi|254780502|r 433 ------DTAVAVNQGGKRKGAVCAYLETWHIDVEEFLDLRKNTGDDRRRTHDMNTANWIPDLFMKRVTQNAGWTLFSPDE 506 (954) Q Consensus 433 ------~~~~~v~QgG~RrGA~~~~l~~wH~Di~eFl~~k~n~G~~~~r~~~~~~av~i~D~Fm~~v~~~~~w~Lf~P~~ 506 (954) T Consensus 244 ~~Di~~~ig~~VvaGgvRRsA~i~l~---~~~D~e~~~aK~~~w~~~~~~-------------~r~~sNnSv---~---- 300 (658) T cd01676 244 IVDLMNLIGVCVVSGNVRRSAEIAFG---QPEDEDFADLKQYQWNPGRRE-------------HGWASNNSV---V---- 300 (658) T ss_pred HHHHHHHHHHHHCCCCCHHCEEEECC---CCCHHHHHHHCCCCCCCCCHH-------------HHHHCCCEE---E---- T ss_conf 99998888788302661002055435---802588987213666777677-------------775427759---9---- Q ss_pred CCCCCCCCCCCHHHHHHHHHHHHCCCCCEEEEEEEHHHHHHHHHHHHHHHCCCEEEEECHHHCCCCC------CCCCEEE Q ss_conf 4441001344378998778752104886057786688999999999988288127833112022212------4667034 Q gi|254780502|r 507 VSDLHDLYGKEFEIAYENYERQADRGEIKVFRKISAVALWRKMLTMLFETGHPWITFKDPCNIRSPQ------QHVGVVH 580 (954) Q Consensus 507 ~~~L~d~~g~~fe~~Y~~~e~~~~~~~~~~~k~i~A~~l~~~i~~~~~etG~P~i~f~D~~N~~~p~------~~~g~I~ 580 (954) T Consensus 301 ------------------------------~~~k~~~~~~~~~~~~~~~sGEpGi~n~~~a~~~~~~~~~~~~~~~~~~~ 350 (658) T cd01676 301 ------------------------------FESKPDRLEYSFACMLIRGNGEPGIAWLDNMKAYARMVLLTTPYHDLRAK 350 (658) T ss_pred ------------------------------EECCCCHHHHHHHHHHHHCCCCCCEEEHHHHHHHHHHCCCCCCCCCCCCC T ss_conf ------------------------------81389889999999987438997565579899865532687766455423 Q ss_pred ECCCCCCCCCCCCCCCCCCCCHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHCCCCCHHHHHHHHHHHHHHHCCCCH Q ss_conf 04675200136654433211125540686254344798885589999999976531121000188888644331000211 Q gi|254780502|r 581 SSNLCTEITLNSSSEETAVCNLGSINLLAHFANNQFDYDKLASTIRTAVRVLDNVIDINCHTIEKAKKSNHTHRAIGLGL 660 (954) Q Consensus 581 ~sNlC~Ei~l~~~~~e~~vCnL~SiNL~~~v~~~~~D~~~l~~~v~~avr~LDnVId~n~yp~~~~~~~~~~~R~iGlGv 660 (954) T Consensus 351 GtNPC~EI~L~~~ef----CNL~EV~~~~~~~----~~~~l~~~~~lA~~~~~~~T~~~~~-~~~~~~~~~~nrliGVSl 421 (658) T cd01676 351 GGNPCGEISLESYEL----CNLVEVFPLKHEG----DLEDLQETLYLAGRYAKTVTLLPLH-WEITNEIILRNRRIGVSM 421 (658) T ss_pred CCCCCEEEECCCCCC----CCCEEEECCCCCC----HHHHHHHHHHHHHHHHHHHHCCCCC-HHHHHHHHHHHHHCEEEE T ss_conf 468741010368986----3120575134688----3999999999999999999816653-788999987600000323 Q ss_pred HHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHCCCCCHHHHHCCHHHCCCCCCCC Q ss_conf 11889999729632337889999999999857799978987531177887667812138762446630055225334540 Q gi|254780502|r 661 MGFQSALHLLHIPYASPEAVEIADESMEFISFHAISASVELAQERGAYSSFKGSLWDQGVFPIDSIGLLAEVRDELAMNR 740 (954) Q Consensus 661 ~Glad~L~~~gi~Y~S~ea~~~~~~i~e~i~~~a~~aS~~LAkErG~~~~f~gS~~~~G~~~~d~~~~~~~~~~~~~~~~ 740 (954) T Consensus 422 TGI~d~~~~~~~~~~~~~----l~~~l~~~~~~v~~~~~~~A~~lgi~-------------------------------- 465 (658) T cd01676 422 SGIADFIVRAGGDLTLHD----LKRWRNIGYEAVYQYDERLSKWLGIP-------------------------------- 465 (658) T ss_pred EEHHHHHHHCCCCCCHHH----HHHHHHHHHHHHHHHHHHHHHHHCCC-------------------------------- T ss_conf 235056564388400899----99999999999999999999970999-------------------------------- Q ss_pred HHHCCHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHCCCCCCCCCCHHEEEEECCCCCEEEECHHHHHHHHHCCCCCHHH Q ss_conf 21027289999999841204430110774368778388988475601203453267613664658999899858986899 Q gi|254780502|r 741 TSRLPWDELKKRVKTIGMRNSNCMAIAPTATIANICGVSQSIDPSYQNLYVKSNMSGDFTVVNSFLVNELKQRDLWDEAM 820 (954) Q Consensus 741 ~~~~dW~~Lr~~i~~~G~RNs~l~aiAPT~t~S~i~g~s~gIEP~~a~~y~r~~~~G~~~~vn~~l~~~l~~~g~~~~~~ 820 (954) T Consensus 466 ------------------~~~~~t~vkPsGt~s~l~~~~~GiH~~~~~yyiRrvr~~~----~dpl~~~l~~~Gy~ve~~ 523 (658) T cd01676 466 ------------------LSIKVTCVKPSGTISLLAGASPGMHYPLGKYLIRRIRFQK----HDPLAPALIAAGYHVEPD 523 (658) T ss_pred ------------------CCCCEEEECCCCCEECCCCCCCCCCCCCCHHHHHEEECCC----CCHHHHHHHHCCCCCCCC T ss_conf ------------------5313135568886101158788777541346670011557----885899999829987787 Q ss_pred HHHHHHCCCCCCCCCCCCHHHHHHCCCHHCCCHHHHHHHHHHHCC-HHCCCEEEEEECC-CCCHHHHHHHHHHHHHCCCC Q ss_conf 999985199627764488678865052220688999999985206-3005232047548-99989999999999972986 Q gi|254780502|r 821 ISDLKYHDGSIGNIERIPDDLKKIHATAFEIDPMWLIESASRRQK-WIDQAQSLNLYLD-EPSGKKLDFIYRQAWLMGLK 898 (954) Q Consensus 821 ~~~i~~~~Gsv~~i~~ip~~~k~~f~ta~ei~~~~~i~~~a~~Q~-~IDqsiS~tl~~~-~~t~~~i~~~y~~Aw~~GlK 898 (954) T Consensus 524 ---~~~~~t~Vv---~fPvk~~~~~~~~~d~sa~eqL~~~~~~q~~W~d~~vS~Tv~~~~~~E~~~v~~wl~~-n~~~~~ 596 (658) T cd01676 524 ---IYDPTSVLV---EFPVKAGNADRTANTVSIVEQLSLLAFLQTYWADNQVSNTISFDPSPEGPALIQALQQ-FQYQYK 596 (658) T ss_pred ---CCCCCCEEE---EEEEECCCCCCCCCCCCHHHHHHHHHHHHHHCCCCCCEEEEEECCCHHHHHHHHHHHH-CCCCEE T ss_conf ---579996799---9987768776253437799999999999986576887279997961549999999985-558636 Q ss_pred EEEEE Q ss_conf 79796 Q gi|254780502|r 899 TTYYL 903 (954) Q Consensus 899 t~yy~ 903 (954) T Consensus 597 gvSfL 601 (658) T cd01676 597 SVSLL 601 (658) T ss_pred EEEEE T ss_conf 99971

HHsearch alignment for GI: 254780502 and conserved domain: cd01676