>TIGR00417 speE spermidine synthase; InterPro: IPR001045 Synonym(s): Spermidine aminopropyltransferase A group of polyamine biosynthetic enzymes involved in the fifth (last) step in the biosynthesis of spermidine from arginine and methionine which includes; spermidine synthase (), spermine synthase () and putrescine N-methyltransferase () . The Thermotoga maritima spermidine synthase monomer consists of two domains: an N-terminal domain composed of six beta-strands, and a Rossmann-like C- terminal domain . The larger C-terminal catalytic core domain consists of a seven-stranded beta-sheet flanked by nine alpha helices. This domain resembles a topology observed in a number of nucleotide and dinucleotide-binding enzymes, and in S-adenosyl-L-methionine (AdoMet)- dependent methyltransferase (MTases) . ; GO: 0003824 catalytic activity.

Probab=90.77 E-value=0.61 Score=26.35 Aligned_cols=130 Identities=15% Similarity=0.227 Sum_probs=73.2 Q ss_pred HCCCCC--CCCEEEEEECCCCHHHHHHHHHHCCC-CCCEEEEEECCC-------CCCCC-------CCCEEEECCCCHHH Q ss_conf 458313--79678885045530689999970687-883278641121-------33346-------98178301122079 Q gi|254780313|r 61 KHQILQ--SNRRIVDLGSSPGSWSQVAARITGSN-ANNTRVVAIDIL-------DMEPI-------LGVKFFKFDFLDLD 123 (227) Q Consensus 61 kf~l~k--~g~~VlDLGaaPGgWsQva~~~~~~~-~~~~~VigVDl~-------~~~~i-------~gv~~~~gDi~~~~ 123 (227) T Consensus 67 HvpL~~H~NPk~VLvIGGGDGG~l---REV~KH~sVE~~~lVdID~~VI~~srkyLP~~~~g~~dderv~~~i~DG---- 139 (284) T TIGR00417 67 HVPLFAHPNPKKVLVIGGGDGGVL---REVVKHKSVEKATLVDIDEKVIELSRKYLPKLAAGSFDDERVDLAIDDG---- 139 (284) T ss_pred HHHHHCCCCCCEEEEEECCCCCEE---EEEEECCCCCEEEEEECCHHHHHHHHHHCHHHHCCCCCCCEEEEEECCC---- T ss_conf 756536898854789963888468---7887559816799997274789998882612105665888035898251---- Q ss_pred HHHHHHHH----CCCCCCEEEECCCHHHCCCCCCHHHHHHHHHHHH-HHHHHHCCCCCCEEEEE-E----ECCCCHHHHH Q ss_conf 99999973----1388748975320211022210157889899988-98764114877469999-3----0599989999 Q gi|254780313|r 124 SWEFIRQA----IGGNPDLVLSDMAYPTIGHRKIDHLRTMSLCEAA-TFFALEMLNIGGDFLVK-T----FQGGTTNDIL 193 (227) Q Consensus 124 ~~~~i~~~----l~~~~DlVlSDmapn~SG~~~~D~~~~~~L~~~a-l~~A~~~Lk~gG~fV~K-~----F~G~~~~~l~ 193 (227) T Consensus 140 -~~fl~~~Gasdv~~~fDVIIvD-stDPvGPa~-------~LF~~~Fy~~~~~aL~~~Gv~v~Qss~s~~~~~~~~~d~~ 210 (284) T TIGR00417 140 -FKFLRDTGASDVEKKFDVIIVD-STDPVGPAE-------TLFTKEFYELLKKALNEDGVIVAQSSESPWLQLELIKDLK 210 (284) T ss_pred -HHHHHHCCCCCCCCCCCEEEEE-CCCCCCCCC-------CHHHHHHHHHHHHHCCCCCEEEEECCCCCCCCHHHHHHHH T ss_conf -7989761522221214479972-778956554-------1021799999998529998899802788432748888788 Q ss_pred HHHHHH-CCEEEEE Q ss_conf 999862-5846997 Q gi|254780313|r 194 CLLKKH-FQKVIHV 206 (227) Q Consensus 194 ~~l~~~-F~~V~~~ 206 (227) T Consensus 211 r~~~~~~F~~~~~y 224 (284) T TIGR00417 211 RKVKEVPFPITEYY 224 (284) T ss_pred HHHHHCCCCCCEEE T ss_conf 87752689753046

HHsearch alignment for GI: 254780313 and conserved domain: TIGR00417