>cd06201 SiR_like2 Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta subunits to catalyze the NADPH dependent reduction of sulfite to sulfide. Beta subunits have an Fe4S4 cluster and a siroheme, while the alpha subunits (cysJ gene) are of the cytochrome p450 (CyPor) family having FAD and FMN as prosthetic groups and utilizing NADPH. Cypor (including cyt -450 reductase, nitric oxide synthase, and methionine synthase reductase) are ferredoxin reductase (FNR)-like proteins with an additional N-terminal FMN domain and a connecting sub-domain inserted within the flavin binding portion of the FNR-like domain. The connecting domain orients the N-terminal FMN domain with the C-terminal FNR domain. NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via F

Probab=99.95 E-value=1.4e-26 Score=182.47 Aligned_cols=179 Identities=20% Similarity=0.284 Sum_probs=145.0 Q ss_pred CCCCEEEEEEEEEECCC----CEEEEEEECCCCC-------CCCCCCEEEECCCCCCCCEEEEEEECCCCCCCCCEEEEE Q ss_conf 73421178989984799----8699998078999-------738985788031458611055643205667776017999 Q gi|254780364|r 9 AADVYCESVISVKHYTD----RLFRFCITRPKSF-------RFRSGEFVMLGLIVNGRPIFRAYSIASPCRDDKLEFCSI 77 (224) Q Consensus 9 p~~~~~~~V~~~~~~T~----~~~~l~l~~p~~~-------~f~aGQ~~~l~~~~~g~~~~R~ySiaS~p~~~~~~~~i~ 77 (224) T Consensus 42 ~p~~~~~~L~~R~~ln~~~~~~t~ilrl~~~~~~~~~~~~p~f~aGDLl~i~Pp--~~~~~R~YSiAs~~~dg~~~l~Vr 119 (289) T cd06201 42 LPRTKALELVERKDYGAAVQAPTAILRFKPAKRKLSGKGLPSFEAGDLLGILPP--GSDVPRFYSLASSSSDGFLEICVR 119 (289) T ss_pred CCCCCCEEEEEECCCCCCCCCCEEEEEEECCCCCCCCCCCCCCCCCCEEEECCC--CCCCCCCCCCCCCCCCCEEEEEEE T ss_conf 997614389841104987789717999852645544466888887773233489--999875224043699997999999 Q ss_pred EECCCCCCCCCCCCCCCCCCEECCCCCCCCCCCCCCCCCCEEEEECCCCHHHHHHHHHHHHHCCCCCEEEEEEECCCHH- Q ss_conf 6157676531000022222100168875335644676881799965868088999999865308863389999405864- Q gi|254780364|r 78 KVDKGFFTTYLQNIQPGDTILLHKKSTGDLILDSLIPGNRLYLFSMGTGIAPFASMIRDPETYKKFDEVIITHTCGRVA- 156 (224) Q Consensus 78 ~~~~g~~s~~l~~~~~gd~~~~~~~p~g~f~~~~~~~~~~lvlIAgGtGiaP~~silr~~~~~~~~~~i~l~~g~R~~~- 156 (224) T Consensus 120 ~~~~GlcS~~L~~L~~Gd~i~~~ir~n~~F~~P~--~~~PvImIg~GTGIAPfrgfl~~~---~~~~~~~LffG~R~~~~ 194 (289) T cd06201 120 KHPGGLCSGYLHGLKPGDTIKAFIRPNPSFRPAK--GAAPVILIGAGTGIAPLAGFIRAN---AARRPMHLYWGGRDPAS 194 (289) T ss_pred ECCCCCCHHHHHCCCCCCEEEEEEECCCCCCCCC--CCCCEEEEECCCCCHHHHHHHHHH---HHCCCEEEEECCCCCCC T ss_conf 6799743677715999898999983499877999--999889991786718889999976---51498499951788887 Q ss_pred HHHHHHHHHHHHHHHHHHCCCCCCCEEEEEEECCCCCCCCCCCHHHHH Q ss_conf 543048889988753321012468759998105788776672168785 Q gi|254780364|r 157 ELQYGIDVMHEISQDEILKDLIGQKLKFYRTVTQEDYLYKGRITNHIL 204 (224) Q Consensus 157 dl~~~~el~~l~~~~~~~~~~~~~~~~~~~~isre~~~~~GrIt~~i~ 204 (224) T Consensus 195 D~lY~~el~~~~~~g~--------l~~l~~AfSR~~~--k~YVQd~l~ 232 (289) T cd06201 195 DFLYEDELDQYLADGR--------LTQLHTAFSRTPD--GAYVQDRLR 232 (289) T ss_pred CHHHHHHHHHHHHCCC--------CCEEEEEECCCCC--CCCHHHHHH T ss_conf 6789999999997699--------5257665435887--512899999

HHsearch alignment for GI: 254780364 and conserved domain: cd06201