>cd03115 SRP The signal recognition particle (SRP) mediates the transport to or across the plasma membrane in bacteria and the endoplasmic reticulum in eukaryotes. SRP recognizes N-terminal sighnal sequences of newly synthesized polypeptides at the ribosome. The SRP-polypeptide complex is then targeted to the membrane by an interaction between SRP and its cognated receptor (SR). In mammals, SRP consists of six protein subunits and a 7SL RNA. One of these subunits is a 54 kd protein (SRP54), which is a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 is a multidomain protein that consists of an N-terminal domain, followed by a central G (GTPase) domain and a C-terminal M domain.

Probab=100.00 E-value=0 Score=401.86 Aligned_cols=173 Identities=43% Similarity=0.685 Sum_probs=169.1 Q ss_pred CEEECCCCCCCCHHHHHHHHHHHHHHCCCCEEEEECCCCCHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHH Q ss_conf 12311354444424789999999852267426774345124568899999753035321223586612454228999965 Q gi|254780709|r 112 HVILVVGVNGVGKTTVIGKLSKKMSDAGLKVMLAAGDTFRSAAIDQLKIWADRTSADFVCSEIGSDAAALAYEAFKQAQA 191 (321) Q Consensus 112 ~vil~vG~nG~GKTTT~aKLA~~~~~~g~kV~lva~DtfR~aA~eQL~~~a~~~~v~~~~~~~~~dp~~v~~~a~~~a~~ 191 (321) T Consensus 1 ~Vi~lvGptGvGKTTTiaKLA~~~~~~~~kV~lit~Dt~R~gA~eQL~~~a~~l~v~~~~~~~~~~~~~~~~~~~~~~~~ 80 (173) T cd03115 1 TVILLVGLQGVGKTTTAAKLALYLKKKGKKVLLVAADTYRPAAIEQLRVLGEQVGVPVFEEGEGKDPVSIAKRAIEHARE 80 (173) T ss_pred CEEEEECCCCCCHHHHHHHHHHHHHHCCCEEEEEECCCCCHHHHHHHHHHHHHCCCEEEECCCCCCHHHHHHHHHHHHHH T ss_conf 99999899999889999999999997699289997488757799999999997498599227755879999999999875 Q ss_pred HCCCEEEEECCCCCCCHHHHHHHHHHHHHHHHCCCCCCCCEEEEECCCCCCHHHHHHHHHHHHHCCCCEEEEECCCCCCC Q ss_conf 14875998654333211577899998998763022234301123102335225778999876435897699965457870 Q gi|254780709|r 192 KKVDVLIIDTAGRLHNNSILMAGIGKMIRVLKRLDPHAPHSVLQVLDATTGQNALRQVEMFHAVAGTTGLIMTKMDGTAR 271 (321) Q Consensus 192 ~~~DvvliDTAGR~~~~~~lm~EL~ki~~v~~~~~~~~p~~~~lVlda~~gq~~~~~a~~F~~~~~~~g~I~TKlD~ta~ 271 (321) T Consensus 81 ~~~D~IlIDTaGr~~~d~~~~~el~~l~~~~~------p~~~~LVl~a~~~~~~~~~~~~f~~~~~~~~~I~TKlDet~~ 154 (173) T cd03115 81 ENFDVVIVDTAGRLQIDENLMEELKKIKRVVK------PDEVLLVVDAMTGQDAVNQAKAFNEALGITGVILTKLDGDAR 154 (173) T ss_pred CCCCEEEEECCCCCCCCHHHHHHHHHHHHHHC------CCCCEEECCCCCHHHHHHHHHHHHHCCCCCEEEEEEECCCCC T ss_conf 68998999788878799999999999986448------972157424655065899999987427997899971438997 Q ss_pred HHHHHHHHHHHCCCEEEEE Q ss_conf 6999999999769889997 Q gi|254780709|r 272 GGGLIPIVVTHKIPVYFLG 290 (321) Q Consensus 272 ~G~~ls~~~~~~~Pi~fig 290 (321) T Consensus 155 ~G~~ls~~~~~~~Pi~fig 173 (173) T cd03115 155 GGAALSIRAVTGKPIKFIG 173 (173) T ss_pred CCHHHHHHHHHCCCEEEEC T ss_conf 5799999999890908509

HHsearch alignment for GI: 254780709 and conserved domain: cd03115