>cd02922 FCB2_FMN Flavocytochrome b2 (FCB2) FMN-binding domain. FCB2 (AKA L-lactate:cytochrome c oxidoreductase) is a respiratory enzyme located in the intermembrane space of fungal mitochondria which catalyzes the oxidation of L-lactate to pyruvate. FCB2 also participates in a short electron-transport chain involving cytochrome c and cytochrome oxidase which ultimately directs the reducing equivalents gained from L-lactate oxidation to oxygen, yielding one molecule of ATP for every L-lactate molecule consumed. FCB2 is composed of 2 domains: a C-terminal flavin-binding domain, which includes the active site for lacate oxidation, and an N-terminal b2-cytochrome domain, required for efficient cytochrome c reduction. FCB2 is a homotetramer and contains two noncovalently bound cofactors, FMN and heme per subunit.

Probab=98.17 E-value=3e-05 Score=58.56 Aligned_cols=162 Identities=23% Similarity=0.301 Sum_probs=109.5 Q ss_pred HHCCCCCCCEEEEEEC-CCHHHHHHHHHHHHCCCCCEEEECCCCCHHHH----HHHHHH-------------------HH Q ss_conf 3027457846999826-99899999887531045377744256413677----666889-------------------99 Q gi|254781167|r 41 LGFSTQEKPLALQIGG-ADISKLVEAAKIVEDFGYNEINLNVGCPSARV----HEGSFG-------------------AC 96 (322) Q Consensus 41 ~~~~~~e~p~~~Ql~g-~~p~~~~~aa~~~~~~g~~~idlN~GCP~~~v----~~~g~G-------------------aa 96 (322) T Consensus 111 a~a~~~~~~~wfQLY~~~dr~~~~~li~RA~~aG~~alvlTvD~p~~G~R~rd~r~~~~~~~~~~~~~~~~~~~~~~~~~ 190 (344) T cd02922 111 VDARPPDQPLFFQLYVNKDRTKTEELLKRAEKLGAKAIFLTVDAPVLGKRERDERLKAEEAVSDGPAGKKTKAKGGGAGR 190 (344) T ss_pred HHHCCCCCCEEEEEECCCCHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCHHHHHCCCCCCCCCCCCCCCCCCCCCHHHH T ss_conf 98656898669998247767999999999998699889995678887752266650777788766543333446631667 Q ss_pred ---HHHHHHHHHHHHHHHHCCCCEEEEEEEECCCCCCCCCCCHHHHHHHHCCCCCCHHHH--HHHHHHHHCCCCCCCCCC Q ss_conf ---985589999999998502790699986113456653220145543200012201210--013566402577421227 Q gi|254781167|r 97 ---LMLNPDIVGDCIAAMCKALSIPVTVKCRIGVDDQIPAVALRNLVKSIKKSGVNGIWI--HARKAILKGLSPKDNRKI 171 (322) Q Consensus 97 ---Ll~~p~~~~~iv~~~~~~~~~pvsvK~RlG~~~~~~~~~~~~~~~~~~~~g~~~iti--H~Rt~~~~g~s~~~~~~~ 171 (322) T Consensus 191 ~~~~~~~~~~tw~di~~lr~~~~~plivK---GIl-------~~~DA~~A~~~G~dgIiVSNHGGR----------qLD~ 250 (344) T cd02922 191 AMSGFIDPTLTWDDIKWLRKHTKLPIVLK---GVQ-------TVEDAVLAAEYGVDGIVLSNHGGR----------QLDT 250 (344) T ss_pred HHHHCCCCCCCHHHHHHHHHHCCCCEEEC---CCC-------CHHHHHHHHHCCCCEEEEECCCCC----------CCCC T ss_conf 77750488899999999998669970100---257-------799999999659988997188621----------2578 Q ss_pred CCCHHHHHHHHHH----HCCCCCCCCCCCCCCHHHHHHHHH-CCCCEEEECCCCCHHHHHH Q ss_conf 6610467876667----388753025777789989888742-0352344122000124399 Q gi|254781167|r 172 PNLDYDIVYEIKK----ENPDLFIGLNGGLEDMSQALKILP-SVDGVMIGRAAYKNSAMLT 227 (322) Q Consensus 172 ~~~~~~~i~~l~~----~~~~~~i~~NGdi~~~~~a~~~l~-~~dgvMigRga~~~P~if~ 227 (322) T Consensus 251 ~~~~i~~Lp~I~~~~~av~~~~~v~~DgGiR~G~DV~KAlALGA~aV~iGR-----p~l~g 306 (344) T cd02922 251 APAPIEVLLEIRKHCPEVFDKIEVYVDGGVRRGTDVLKALCLGAKAVGLGR-----PFLYA 306 (344) T ss_pred CCCHHHHHHHHHHHHHHHCCCEEEEECCCCCCHHHHHHHHHCCCCEEEECH-----HHHHH T ss_conf 831899989999988985887089971885757899999976999897678-----99999

HHsearch alignment for GI: 254781167 and conserved domain: cd02922