>cd01873 RhoBTB RhoBTB subfamily. Members of the RhoBTB subfamily of Rho GTPases are present in vertebrates, Drosophila, and Dictyostelium. RhoBTB proteins are characterized by a modular organization, consisting of a GTPase domain, a proline rich region, a tandem of two BTB (Broad-Complex, Tramtrack, and Bric a brac) domains, and a C-terminal region of unknown function. RhoBTB proteins may act as docking points for multiple components participating in signal transduction cascades. RhoBTB genes appeared upregulated in some cancer cell lines, suggesting a participation of RhoBTB proteins in the pathogenesis of particular tumors. Note that the Dictyostelium RacA GTPase domain is more closely related to Rac proteins than to RhoBTB proteins, where RacA actually belongs. Thus, the Dictyostelium RacA is not included here. Most Rho proteins contain a lipid modification site at the C-terminus; however, RhoBTB is one of few Rho subfamilies that lack this feature.

Probab=99.02 E-value=9e-10 Score=87.61 Aligned_cols=131 Identities=26% Similarity=0.325 Sum_probs=79.5 Q ss_pred CCCEEEECCCCCCHHHHHHHHHCCH-----HCCCCCCCCCCE--E-------ECC-CCCCCCC--EEEEEEECCHHCCCC Q ss_conf 2302431146631888999985520-----002345468721--1-------000-1245683--589995081000241 Q gi|254780809|r 219 GYKIVILGHSNAGKSSLFNALAKKD-----VAIVTDIPGTTR--D-------VLT-IDLDLEG--YLVKISDTAGIRETD 281 (440) Q Consensus 219 g~~v~i~G~pN~GKSSL~N~L~~~~-----~aIVs~~~GTTR--D-------~i~-~~~~i~g--~~~~l~DTaGir~t~ 281 (440) T Consensus 2 t~KiVlvGDs~VGKTsLl~~~~~n~~~~~~~~~~~~~p-Tv~~~~~~~~~~~~~~~~~~~vdg~~v~L~iWDTAG~---~ 77 (195) T cd01873 2 TIKCVVVGDNAVGKTRLICARACNKTLTQYQLLATHVP-TVWAIDQYRVCQEVLERSRDVVDGVSVSLRLWDTFGD---H 77 (195) T ss_pred CEEEEEECCCCCCHHHHHHHHHHCCCCCCCCCCCCCCC-CCCCCCCCEEEEEECCCCEEEECCEEEEEEEEECCCC---H T ss_conf 77999987899898999977874787655656667588-6633333134444302211421895999999978996---2 Q ss_pred HHHHHHHHHHHHHHHHHHCCEEECCCCCCHHHHH--------H----HCCCCCCCCCCCCCCCCCCC------------- Q ss_conf 0356666788899850301102013589856634--------3----12898532222333446542------------- Q gi|254780809|r 282 DIVEKEGIKRTFLEVENADLILLLKEINSKKEIS--------F----PKNIDFIFIGTKSDLYSTYT------------- 336 (440) Q Consensus 282 d~IE~~GI~ra~~~i~~aDlil~v~D~~~~~~~~--------~----~~~~~~i~V~NK~Dl~~~~~------------- 336 (440) T Consensus 78 ---~~~---r~~-~y~~~~~~ll~fdv~~~~Sf~~v~~~W~~ei~~~~~~~piiLVG~K~DLr~~~~~~~~~~~~~~~~~ 150 (195) T cd01873 78 ---DKD---RRF-AYGRSDVVLLCFSIASPNSLRNVKTMWYPEIRHFCPRVPVILVGCKLDLRYADLDEVNRARRPLARP 150 (195) T ss_pred ---HHC---CCC-CCCCCCEEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCEEEEEECHHHCCCCCHHHHHHHHCCCCC T ss_conf ---001---214-3568889999996698014899999999999986899988999637575446302455543001365 Q ss_pred --HH-----------------HHHHHHHHHHHHHHHHHHHHHH Q ss_conf --00-----------------0001333323235899999999 Q gi|254780809|r 337 --EE-----------------YDHLISSFTGEGLEELINKIKS 360 (440) Q Consensus 337 --~~-----------------~~~~ISaktg~Gi~~L~~~I~~ 360 (440) T Consensus 151 ~~~~~~v~~ee~~~~A~~~g~~y~EtSAkt~~gV~e~F~~air 193 (195) T cd01873 151 IKNADILPPETGRAVAKELGIPYYETSVVTQFGVKDVFDNAIR 193 (195) T ss_pred CCCCCCCCHHHHHHHHHHHCCEEEECCCCCCCCHHHHHHHHHH T ss_conf 5435767899999999982998998284879897999999998

HHsearch alignment for GI: 254780809 and conserved domain: cd01873