>cd06059 Tubulin The tubulin superfamily includes five distinct families, the alpha-, beta-, gamma-, delta-, and epsilon-tubulins and a sixth family (zeta-tubulin) which is present only in kinetoplastid protozoa. The alpha- and beta-tubulins are the major components of microtubules, while gamma-tubulin plays a major role in the nucleation of microtubule assembly. The delta- and epsilon-tubulins are widespread but unlike the alpha, beta, and gamma-tubulins they are not ubiquitous among eukaryotes. The alpha/beta-tubulin heterodimer is the structural subunit of microtubules. The alpha- and beta-tubulins share 40% amino-acid sequence identity, exist in several isotype forms, and undergo a variety of posttranslational modifications. The structures of alpha- and beta-tubulin are basically identical: each monomer is formed by a core of two beta-sheets surrounded by alpha-helices. The monomer structure is very compact, but can be divided into three regions based on function: the amino-termi

Probab=99.32 E-value=1.3e-11 Score=105.18 Aligned_cols=200 Identities=18% Similarity=0.278 Sum_probs=155.0 Q ss_pred EEEEEECCCHHHHHHHHHHCCCCCCEEEEECCCHHHHHHCCCCE-EEEE--CCCCCCCCCCCCCHHHHH-----HHHHHH Q ss_conf 79999668147999999985899844999825578855189970-4851--554255678888838999-----999972 Q gi|254781176|r 17 ITVFGVGGGGGNAVNNMVSSGLQGVNFVVANTDAQALMMSKAKQ-IIQL--GSGITEGLGAGSHPEVGR-----AAAEEC 88 (502) Q Consensus 17 i~v~g~gg~g~n~~~~~~~~~~~~~~~~~~ntd~~~l~~~~~~~-~~~~--g~~~~~g~g~g~~~~~g~-----~~a~~~ 88 (502) T Consensus 2 iItiqiGqcGnqIG~~~w~~------~v~iD~e~~vi~~i~~~~~~~~~~~~~~~~~~~gsgnnwa~Gy~~~g~~~~d~i 75 (382) T cd06059 2 IISIQIGQCGNQIGNKFWEL------LILVDLDPRVINEILQGQLSKLFDPNQLVNGKEGSGNNWARGYYTIGPELIDEI 75 (382) T ss_pred EEEEEECCCHHHHHHHHHHH------HHEEECCHHHHHHHHCCCCCCCCCCCCEEECCCCCCCCCCCEEECCCHHHHHHH T ss_conf 79997077299999999999------881018745788763588545778302786788863120253103448889999 Q ss_pred HHHHHHHHCCCCE---EEEEECCCCCCCCCHHHHHHHHHHHC--CCEEEEEEECCCCCCC--HHHHHHHHHHHHHHHHHH Q ss_conf 9999997269989---99980367666740789999999864--9849999504300040--678888999999999863 Q gi|254781176|r 89 IDEITEMLDKTHM---CFVTAGMGGGTGTGAAPIIAKIARNK--GVLTVGVVTKPFHFEG--SRRMRVAESGIEALQETV 161 (502) Q Consensus 89 ~~~i~~~~~~~~~---~~~~ag~gggtgtg~~p~ia~~a~~~--~~~~~~~v~~pf~~eg--~~r~~~a~~~~~~l~~~~ 161 (502) T Consensus 76 ~d~Irk~~E~CD~l~GF~~~~Sl~GGTGSGlGs~l~e~L~d~ypk~~~~~~~V~Ps~~~~~~vvq~YNtvLsl~~L~e~s 155 (382) T cd06059 76 LDRIRKQVEKCDSLQGFQITHSLGGGTGSGLGSLLLELLSDEYPKILINTFSIFPSPQGSSNVVEPYNSILSLNHLLENS 155 (382) T ss_pred HHHHHHHHHHCCCCCCEEEEEECCCCCCCCHHHHHHHHHHHHCCCCEEEEEEECCCCCCCCCCCCCCHHHHHHHHHHHHC T ss_conf 99999999847886633788767998757588999999998716560653375178655776041445477589998648 Q ss_pred HHHHHHHHHHHHHHCCCCCHHH-HHHHHHHHHHHHHHHHHHHHHHCCCCCCCCHHHHHHHHC Q ss_conf 3354502788874136653189-997446799999988888765166555589878787641 Q gi|254781176|r 162 DTLIVIPNQNLFRIANDKTTFA-DAFSMADQVLYSGVSCITDLMIKEGLINLDFADVRSVMR 222 (502) Q Consensus 162 d~~i~i~n~~l~~~~~~~~~~~-~af~~~d~~l~~~v~~i~~~i~~~g~in~df~d~~~v~~ 222 (502) T Consensus 156 d~~~~~dN~al~~i~~~~l~~~~~~~~~~N~vIa~~ls~~t~~~Rf~~~~n~~l~~l~~nLv 217 (382) T cd06059 156 DSVILFDNEALYNILTRQLDIDEPSFDDLNNIIAQIISSITASLRFPGYLNFDLRKLATNLV 217 (382) T ss_pred CEEEEEEHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHCCCCCCCCCCCCCCCCHHHHHCCCC T ss_conf 77898204999999997358899997999999997613566631158766876577720577

HHsearch alignment for GI: 254781176 and conserved domain: cd06059