>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=98.64 E-value=9e-07 Score=64.94 Aligned_cols=156 Identities=22% Similarity=0.271 Sum_probs=88.2 Q ss_pred EEEEECCCCCCHHHHHHHHHHHCC-CCCCCCCC----CEE--ECCCHHHHHHCCEEEEEEEEEEEECCCCCEEEEEEEEC Q ss_conf 799980138987788999999829-80544443----113--05867798719505232799997437884389999617 Q gi|254780321|r 13 NFSIVAHIDHGKSTLADRFIQHCR-GLTEREMS----SQV--LDNMDIERERGITIKAQTVRLNYTSTDAKDYQLNLIDT 85 (606) Q Consensus 13 N~~IiaHvDhGKTTL~d~lL~~tg-~i~~~~~~----~~v--lD~~~~EreRGITIka~~~~~~~~~~~~~~y~iNlIDT 85 (606) T Consensus 4 KiVlvGDs~VGKTsLl~~~~--~n~~~~~~~~~~~~~pTv~~~~~--------~~~~~~~~~~~~~~vdg~~v~L~iWDT 73 (195) T cd01873 4 KCVVVGDNAVGKTRLICARA--CNKTLTQYQLLATHVPTVWAIDQ--------YRVCQEVLERSRDVVDGVSVSLRLWDT 73 (195) T ss_pred EEEEECCCCCCHHHHHHHHH--HCCCCCCCCCCCCCCCCCCCCCC--------CEEEEEECCCCEEEECCEEEEEEEEEC T ss_conf 99998789989899997787--47876556566675886633333--------134444302211421895999999978 Q ss_pred CCCCHHHHHHHHH--HHHCCEEEEEEECCCCCCHHHHHH-HHHHHH---CCCCEEEEECCCCCCCCCCCCHH-------- Q ss_conf 8730027999999--973026899998687886558999-999997---09967998326788753211338-------- Q gi|254780321|r 86 PGHVDFTYEVSRS--LSACEGSLLVVDATQGVEAQTLAN-VYQAID---NNHEIITVLNKADLPSADPDRVK-------- 151 (606) Q Consensus 86 PGH~DF~~EV~r~--l~a~dgaiLvVdA~~Gvq~QT~~~-~~~A~~---~~l~~I~viNKiD~~~A~~e~v~-------- 151 (606) T Consensus 74 AG~~~~----~r~~~y~~~~~~ll~fdv~~~~Sf~~v~~~W~~ei~~~~~~~piiLVG~K~DLr~~~~~~~~~~~~~~~~ 149 (195) T cd01873 74 FGDHDK----DRRFAYGRSDVVLLCFSIASPNSLRNVKTMWYPEIRHFCPRVPVILVGCKLDLRYADLDEVNRARRPLAR 149 (195) T ss_pred CCCHHH----CCCCCCCCCCEEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCEEEEEECHHHCCCCCHHHHHHHHCCCC T ss_conf 996200----1214356888999999669801489999999999998689998899963757544630245554300136 Q ss_pred ----------HH---HHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHH Q ss_conf ----------88---77555322321000111002232006787763 Q gi|254780321|r 152 ----------KQ---IEETIGISTEDALLVSAKTGEGIPLLLERIVQ 185 (606) Q Consensus 152 ----------~e---i~~~~g~~~~~ii~vSAktG~GV~~LLd~Iv~ 185 (606) T Consensus 150 ~~~~~~~v~~ee~~~~A~~~g~---~y~EtSAkt~~gV~e~F~~air 193 (195) T cd01873 150 PIKNADILPPETGRAVAKELGI---PYYETSVVTQFGVKDVFDNAIR 193 (195) T ss_pred CCCCCCCCCHHHHHHHHHHHCC---EEEECCCCCCCCHHHHHHHHHH T ss_conf 5543576789999999998299---8998284879897999999998

HHsearch alignment for GI: 254780321 and conserved domain: cd01873