>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=99.63 E-value=1.1e-15 Score=124.54 Aligned_cols=150 Identities=21% Similarity=0.253 Sum_probs=94.2 Q ss_pred EEEEEEECCCCCHHHHHHHHHCCCCCCCHHHHHHHHHCCCCEEEECCEE--EEEEECHHCCCCCCCCCHHHHHHCCCCCE Q ss_conf 0388640356425678876520121100024566542023114203406--99981711044444300011100012100 Q gi|255764471|r 204 LRIAVVGRPNVGKSTLINRLLGYNRLLTGSQSGITRDSVSISWNWKNHP--IEIFDTAGMRKPSRITESLEQKTVKKSMQ 281 (470) Q Consensus 204 i~~~~~G~pN~GKStl~N~l~~~~r~ivs~~~GtTrD~i~~~~~~~~~~--~~liDTaGirkk~~~~~~~E~~s~~~t~~ 281 (470) T Consensus 2 ~KvvlvGd~~VGKTsli~r~~~~~-F~-~~y~~Ti~~~~~k~~~i~~~~~~l~iwDtaG----------~e~~~~l~-~~ 68 (162) T cd04138 2 YKLVVVGAGGVGKSALTIQLIQNH-FV-DEYDPTIEDSYRKQVVIDGETCLLDILDTAG----------QEEYSAMR-DQ 68 (162) T ss_pred EEEEEECCCCCCHHHHHHHHHHCC-CC-CCCCCCCCCEEEEEEEECCEEEEEEEEECCC----------CCCCCHHH-HH T ss_conf 399998999988999999998392-88-7568855527999999999999999997998----------60111478-98 Q ss_pred EEECCEEEEEECCCCCCCHHHH--HHHHHHHH----CCCCCCCEEEECCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCC Q ss_conf 1201205998455321220212--23200000----03576655894422335415556665420133320048831112 Q gi|255764471|r 282 SVRTCETTIVLLDATIPFEKQD--LRIVDSVF----NTGHAVVLALNKWDMVSDKLNLLQDLRTKAIKNLPQIGDIYINT 355 (470) Q Consensus 282 ~i~~advvi~viDa~~~~~~qd--~~i~~~i~----~~~k~~iiv~NK~Dli~~~~~~~~~~~~~~~~~~~~~~~~~i~~ 355 (470) T Consensus 69 ~~~~a~~~ilvydvt~~~Sf~~v~~w~-~~i~~~~~~~~~piilVgNK~Dl~~-r~V~~~e~~-~~a~~----~~~~f~E 141 (162) T cd04138 69 YMRTGEGFLCVFAINSRKSFEDIHTYR-EQIKRVKDSDDVPMVLVGNKCDLAA-RTVSSRQGQ-DLAKS----YGIPYIE 141 (162) T ss_pred HHCCCCEEEEEEECCCHHHHHHHHHHH-HHHHHHCCCCCCEEEEEEEECCHHH-CCCCHHHHH-HHHHH----CCCEEEE T ss_conf 715787799996179889999899999-9999854888854999976535645-558899999-99998----0998999 Q ss_pred CCCCCCCCHHHHHHHHHH Q ss_conf 345333485899999999 Q gi|255764471|r 356 ISGRTGEGLDDLMVSVLE 373 (470) Q Consensus 356 iSA~~g~gi~~l~~~i~~ 373 (470) T Consensus 142 ~SAk~~~nV~e~F~~l~~ 159 (162) T cd04138 142 TSAKTRQGVEEAFYTLVR 159 (162) T ss_pred ECCCCCCCHHHHHHHHHH T ss_conf 738998598999999999

HHsearch alignment for GI: 255764471 and conserved domain: cd04138