>cd04138 H_N_K_Ras_like H-Ras/N-Ras/K-Ras subfamily. H-Ras, N-Ras, and K-Ras4A/4B are the prototypical members of the Ras family. These isoforms generate distinct signal outputs despite interacting with a common set of activators and effectors, and are strongly associated with oncogenic progression in tumor initiation. Mutated versions of Ras that are insensitive to GAP stimulation (and are therefore constitutively active) are found in a significant fraction of human cancers. Many Ras guanine nucleotide exchange factors (GEFs) have been identified. They are sequestered in the cytosol until activation by growth factors triggers recruitment to the plasma membrane or Golgi, where the GEF colocalizes with Ras. Active (GTP-bound) Ras interacts with several effector proteins that stimulate a variety of diverse cytoplasmic signaling activities. Some are known to positively mediate the oncogenic properties of Ras, including Raf, phosphatidylinositol 3-kinase (PI3K), RalGEFs, and Tiam1.

Probab=99.20 E-value=1e-10 Score=91.22 Aligned_cols=142 Identities=20% Similarity=0.253 Sum_probs=96.9 Q ss_pred EEEEECCCCCHHHHHHHHHHHHHHHCCCCCCEECCCEEE-----EECCCCEEEEEECCCHHHHHHHHHHHHHCCCCEEEE Q ss_conf 898623685044677788642221001231000121499-----951784388885166157899986664206805999 Q gi|254780787|r 386 VTIMGHVDHGKTSLLDAIRKADVAKGEIGGITQHIGAYQ-----VAYQGKNITFLDTPGHAAFYEMRARGARVTDIAVLV 460 (884) Q Consensus 386 v~v~ghvd~GKt~lld~~r~~~~~~~e~ggitq~iga~~-----~~~~~~~~~~iDtPGh~~f~~~r~rg~~~~d~~ilv 460 (884) T Consensus 4 vvlvGd~~VGKTsli~r~~~~~F~~~y----~~Ti~~~~~k~~~i~~~~~~l~iwDtaG~e~~~~l~~~~~~~a~~~ilv 79 (162) T cd04138 4 LVVVGAGGVGKSALTIQLIQNHFVDEY----DPTIEDSYRKQVVIDGETCLLDILDTAGQEEYSAMRDQYMRTGEGFLCV 79 (162) T ss_pred EEEECCCCCCHHHHHHHHHHCCCCCCC----CCCCCCEEEEEEEECCEEEEEEEEECCCCCCCCHHHHHHHCCCCEEEEE T ss_conf 999899998899999999839288756----8855527999999999999999997998601114789871578779999 Q ss_pred EECCCCCCHHHHHHHHH----HH----HCCCCEEEECCCCCCCCCCCCHHHHHHHCCCCCCCCCCCCCEEEEEEECCCCC Q ss_conf 98366740235777898----99----70994156123312443320002210000132000123474036311002477 Q gi|254780787|r 461 LAADEEIMPQAIESINH----AK----AADVSIIVAINKIDKLGADPQKVRMSLLKHDVFVESMGGDILDVEISAKNNLN 532 (884) Q Consensus 461 v~~~~g~~~qt~e~~~~----~~----~~~~p~iva~nk~d~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 532 (884) T Consensus 80 ydvt~---~~Sf~~v~~w~~~i~~~~~~~~~piilVgNK~Dl~~---r~V~~~e~--~~~a~~~--~~~f~E~SAk~~~n 149 (162) T cd04138 80 FAINS---RKSFEDIHTYREQIKRVKDSDDVPMVLVGNKCDLAA---RTVSSRQG--QDLAKSY--GIPYIETSAKTRQG 149 (162) T ss_pred EECCC---HHHHHHHHHHHHHHHHHCCCCCCEEEEEEEECCHHH---CCCCHHHH--HHHHHHC--CCEEEEECCCCCCC T ss_conf 61798---899998999999999854888854999976535645---55889999--9999980--99899973899859 Q ss_pred CCCCCCCHH Q ss_conf 411221000 Q gi|254780787|r 533 LDKLLDAIL 541 (884) Q Consensus 533 ~~~~~~~~~ 541 (884) T Consensus 150 V~e~F~~l~ 158 (162) T cd04138 150 VEEAFYTLV 158 (162) T ss_pred HHHHHHHHH T ss_conf 899999999

HHsearch alignment for GI: 254780787 and conserved domain: cd04138