>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=94.31 E-value=0.16 Score=31.03 Aligned_cols=151 Identities=21% Similarity=0.227 Sum_probs=80.0 Q ss_pred EEECCCHHH-HHHHHHHHHCCC-CCEEEECCCCCHHHHHHHHHH-------HHHHHHHHHHHHHHHHHHCCC--CEEEEE Q ss_conf 982699899-999887531045-377744256413677666889-------999855899999999985027--906999 Q gi|254781167|r 53 QIGGADISK-LVEAAKIVEDFG-YNEINLNVGCPSARVHEGSFG-------ACLMLNPDIVGDCIAAMCKAL--SIPVTV 121 (322) Q Consensus 53 Ql~g~~p~~-~~~aa~~~~~~g-~~~idlN~GCP~~~v~~~g~G-------aaLl~~p~~~~~iv~~~~~~~--~~pvsv 121 (322) T Consensus 76 ~l~hp~gE~a~AraA~---~~gi~~~lSt~ss~slEdVa~a~~~~~~~wfQLY~~~dr~~~~~li~RA~~aG~~alvlTv 152 (344) T cd02922 76 KLAHPDGELNLARAAG---KHGILQMISTNASCSLEEIVDARPPDQPLFFQLYVNKDRTKTEELLKRAEKLGAKAIFLTV 152 (344) T ss_pred HHCCCCHHHHHHHHHH---HCCCCEEEECCCCCCHHHHHHHCCCCCCEEEEEECCCCHHHHHHHHHHHHHCCCCEEEEEC T ss_conf 4328845699999999---7488657405777888999986568986699982477679999999999986998899956 Q ss_pred EE----------ECCCCCCCCCCCHHHHHHHHCCCCCCHHHHHHHHHHHHCCCC-CCCCCCCCCHHHHHHHHHHHCCCCC Q ss_conf 86----------113456653220145543200012201210013566402577-4212276610467876667388753 Q gi|254781167|r 122 KC----------RIGVDDQIPAVALRNLVKSIKKSGVNGIWIHARKAILKGLSP-KDNRKIPNLDYDIVYEIKKENPDLF 190 (322) Q Consensus 122 K~----------RlG~~~~~~~~~~~~~~~~~~~~g~~~itiH~Rt~~~~g~s~-~~~~~~~~~~~~~i~~l~~~~~~~~ 190 (322) T Consensus 153 D~p~~G~R~rd~r~~~~~~~~-~~~---------------~~~~~~~~~~~~~~~~~~~~~~~~tw~di~~lr~~~-~~p 215 (344) T cd02922 153 DAPVLGKRERDERLKAEEAVS-DGP---------------AGKKTKAKGGGAGRAMSGFIDPTLTWDDIKWLRKHT-KLP 215 (344) T ss_pred CCCCCCCCHHHHHCCCCCCCC-CCC---------------CCCCCCCCCCHHHHHHHHCCCCCCCHHHHHHHHHHC-CCC T ss_conf 788877522666507777887-665---------------433334466316677775048889999999999866-997 Q ss_pred CCCCCCCCCHHHHHHHHH-CCCCEEE----ECCCCCHHH Q ss_conf 025777789989888742-0352344----122000124 Q gi|254781167|r 191 IGLNGGLEDMSQALKILP-SVDGVMI----GRAAYKNSA 224 (322) Q Consensus 191 i~~NGdi~~~~~a~~~l~-~~dgvMi----gRga~~~P~ 224 (322) T Consensus 216 liv-KGIl~~~DA~~A~~~G~dgIiVSNHGGRqLD~~~~ 253 (344) T cd02922 216 IVL-KGVQTVEDAVLAAEYGVDGIVLSNHGGRQLDTAPA 253 (344) T ss_pred EEE-CCCCCHHHHHHHHHCCCCEEEEECCCCCCCCCCCC T ss_conf 010-02577999999996599889971886212578831

HHsearch alignment for GI: 254781167 and conserved domain: cd02922