>TIGR01790 carotene-cycl lycopene cyclase family protein; InterPro: IPR010108 Carotenoids have important functions in photosynthesis, nutrition, and protection against oxidative damage, and are essential components of the photosynthetic membranes in all plants, algae, and cyanobacteria. The final steps in the biosynthesis of carotenoids usually involve the cyclization of lycopene by one of two pathways: the formation of a beta ring by beta-cyclase, or an epsilon ring by epsilon-cyclase. Epsilon-cyclase adds only one ring, forming the monocyclic delta-carotene, whereas beta-cyclase introduces a ring at both ends of lycopene to form the bicyclic beta-carotene . Both enzymes show high sequence similarities, and may have evolved from the same ancestor . This family includes lycopene beta-and epsilion-cyclases, which are involved in the biosynthesis of carotenoids in bacteria and plants, and the related capsanthin capsorubin synthase (Ccs) from plants, which converts antheraxanthin or violaxanthin into capsanthin or capsorubin by a mechanism similar to lycopene cyclization.; GO: 0016705 oxidoreductase activity acting on paired donors with incorporation or reduction of molecular oxygen, 0016117 carotenoid biosynthetic process.

Probab=98.81 E-value=2.6e-07 Score=66.36 Aligned_cols=311 Identities=20% Similarity=0.209 Sum_probs=151.9 Q ss_pred CEEEECCCHHHHHHHHHHH--HCCCCEEEEECCCC-CCCCCHHCCCCEEEECCCCCCCCHHHHHHHHHHHCCCCCCHHHH Q ss_conf 5889899689999999999--88982999986898-85210411653425137899999999999899845887799999 Q gi|254781043|r 19 DVVVVGAGGAGLRATLGMA--EKGFKTACITKVFP-TRSHTVAAQGGIAASLANMTPDSWQWHLYDTIKGSDWLGDVDAI 95 (611) Q Consensus 19 DVlVIG~G~AGl~AAi~A~--e~G~~V~lieK~~~-~~g~s~~A~GGi~a~~~~~~~Ds~~~~~~Dt~~~g~~l~d~~lv 95 (611) T Consensus 1 D~~ViGgGpAG~aiA~~l~~a~~gL~V~~i~p~p~f~~~~~tyg---~---w----~~d----l~~~--------~hawl 58 (419) T TIGR01790 1 DLIVIGGGPAGLAIALELADARPGLRVQLIEPAPPFLPGNNTYG---V---W----DDD----LSDL--------GHAWL 58 (419) T ss_pred CEEEECCCHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCCC---C---C----CCC----HHHH--------HHHHH T ss_conf 97887477578999999997505871898678887677687442---1---2----222----3278--------99999 Q ss_pred HHHHHHHHHHHHHHHHCCCCCCCCCCCCEEEECCCCCCCCCCCCCCCCEEEEECCCCCHHHHHHHHHHHHHC-CCEEECC Q ss_conf 999998899999999869981327998551001464114567876564079866654266789999998731-2303113 Q gi|254781043|r 96 QYLAMEAPQSVYELEHYGVPFSRNEAGKIYQRPFGGHMQNYGEGPPVQRTCAAADRTGHAILHTLYGQALKN-NAEFFIE 174 (611) Q Consensus 96 ~~~~~~a~~~i~~Le~~Gv~f~r~~~G~~~~~~~gg~~~~~~~g~~~~R~~~~~d~tG~~i~~~L~~~~~~~-gv~i~~~ 174 (611) T Consensus 59 ~~l~~~-------------~W~---~~-~~y~-~~--~~~~~L~~~Y~~~------~~~~L~~~l~~~~~~~sG~~~~~~ 112 (419) T TIGR01790 59 ADLVEH-------------RWS---DA-YEYR-FP--EEPIKLGRAYGSV------DRAQLHEELLQKCPEGSGVLWLEA 112 (419) T ss_pred HHHHCC-------------CCC---CE-EEEC-CC--CCCHHCCCCCEEE------CHHHHHHHHHHHHHCCCCEEEEHH T ss_conf 988416-------------389---80-6883-87--3430105665000------158999999986200376133013 Q ss_pred CEEEEEEECCCCCCEEEEEEEECCCEEEEECCCCEEEECCCCC-CCCCCCCCCCEECCHHHHHHHHHCCCCCCCCCCCCC Q ss_conf 1565200013443012468980587089950672474157656-543342106401444887887513653333222328 Q gi|254781043|r 175 YFALDLIINSEGCCVGVVAWQLETGEIHRFSAKLVVLATGGYG-RAYFSATSAHTCTGDGAGMVARAGLPLQDMEFVQFH 253 (611) Q Consensus 175 ~~~~~Li~d~dG~V~Gav~~~~~~G~~~~i~AkaVILATGG~~-~ly~~~t~~~~~tGdG~~mA~~aGa~l~~mEf~qfh 253 (611) T Consensus 113 -ka~~~~~~---~~~~~~v~-~~~g~--~i~Ar~V~Da~G~~~G~l~~~~~~~-~--~~g~Q~ayG~~~rl~~------~ 176 (419) T TIGR01790 113 -KAIKVEAD---AVSLSLVE-CAGGQ--RIQARLVIDARGFKPGKLVQYEKAS-L--AVGYQAAYGVEVRLSE------P 176 (419) T ss_pred -HHHHHHHH---HCCCCEEE-CCCCE--EEEEEEEEECCCCCCCCEECCCCCC-C--CCEEEEEEEEEEEEEC------C T ss_conf -56666544---05511144-28973--7840078832577765101125667-6--4212131327788724------7 Q ss_pred CCCCCCCEEECCCCCCCCCEEEE---ECCCCC-----CCCCCCCCCCCCCCCCEEHHHHHHHHHHCCCCCCCCCEEEEEE Q ss_conf 88442201430456655780898---326861-----2554076510047520111568899881788888887468861 Q gi|254781043|r 254 PTGIYGAGCLITEGARGEGGYLV---NSKGER-----FMERYAPSAKDLASRDVVSRCMMMEIREGRGVGKSKDHIHLYL 325 (611) Q Consensus 254 Pt~~~~~~~l~~~~~rg~G~~l~---n~~Ger-----f~~~y~~~~~el~~rd~~s~ai~~ei~~g~g~~~~~~~v~ld~ 325 (611) T Consensus 177 P~~~~~~-V~MD~r~----~~~~~~~~l~~~~sripTFl-----YampL~~~~~-----f~E-----------eT~l~~~ 230 (419) T TIGR01790 177 PHGPSSM-VIMDYRV----DQLKDAPELKGYRSRIPTFL-----YAMPLSSDRV-----FIE-----------ETSLAAR 230 (419) T ss_pred CCCCCCC-EEECCCH----HHHCCCCCCCCCCCCCCCEE-----EECCCCCCEE-----EEE-----------EEEECCC T ss_conf 8799986-5831152----52357853235566676156-----6305899647-----888-----------5100268 Q ss_pred CCCCHHHHHHHHHHHHHHHHHHCCCCCCCCEEEEECCCCCCCCCCCCCCCCEEECCCCCCCCCCCCCEEECCCCCCCCCC Q ss_conf 11798999998537999997643678654406752033100123421577158537788853322760340212203356 Q gi|254781043|r 326 NHLDPAVLQERLPGISESARIFAGVDVTRDPIPVIPTVHYNMGGIPTNYWGEVLDANSKNPERFAPGLMAIGEAGCASVH 405 (611) Q Consensus 326 ~~~~~~~l~~~~~~~~~~~~~~~g~D~~~~~i~v~p~~hy~~GGi~vd~~g~v~~~~~~~~~t~i~GLyAaGe~a~~g~h 405 (611) T Consensus 231 p~l~~~~L~~rl~---~rl~~-~G~~~~~i-------~~eE~~~lP~~~~~p---~sa~~~~q~~PGv~~~G~aA-g~vH 295 (419) T TIGR01790 231 PALPRDRLKQRLL---ARLAA-QGWQVKEI-------EEEEQGLLPVNLPLP---SSAYVLEQRIPGVVAFGAAA-GMVH 295 (419) T ss_pred CCCCHHHHHHHHH---HHHHH-CCCCCCCH-------HHCCHHHCCCCCCCC---CCCCCCCCCCCCHHHCCCCC-CCCC T ss_conf 9989899999999---99984-68823400-------320011114355788---52220689987033100133-4557 Q ss_pred CCCCCCCCCCCCCCCCCHHHHHHHHHHHHHCC Q ss_conf 64304764322222232156775566542026 Q gi|254781043|r 406 GANRLGSNSLIDLVVFGRAAVIRASEMIDKSS 437 (611) Q Consensus 406 Ganrlggnsl~~~~vfG~~Ag~~aa~~~~~~~ 437 (611) T Consensus 296 ---P~TGY~v~~al~~Ap~~A~~~A~~L~~~~ 324 (419) T TIGR01790 296 ---PATGYSVARALSEAPKLAAAIAQALALSS 324 (419) T ss_pred ---CCCHHHHHHHHHHHHHHHHHHHHHHCCCC T ss_conf ---75111489999987888999997413333

HHsearch alignment for GI: 254781043 and conserved domain: TIGR01790