>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=98.57 E-value=1.5e-07 Score=63.38 Aligned_cols=144 Identities=15% Similarity=0.210 Sum_probs=106.6 Q ss_pred HHHHHHHHHCCC-CCCCEEEECCCCCHHHHHHHHHCCCCEEEEECCHHHHHHHHHHCCC----------------CCH-H Q ss_conf 999978986368-9870999859985899999862697089972001135775311001----------------200-1 Q gi|254780322|r 34 KEIAFRLNMINQ-TFENALELHGITGIVGYTCMETKKIHRMIRAEISTEFSTLKREVIS----------------CPL-E 95 (273) Q Consensus 34 ~~l~~~l~~~~~-~~~~vLdlGcGtG~~~~~l~~~~~~~~v~~~D~s~~~~~~~~~~~~----------------~d~-e 95 (273) T Consensus 62 hEMi~HvpL~~H~NPk~VLvIGGGDGG~lREV~KH~sVE~~~lVdID~~VI~~srkyLP~~~~g~~dderv~~~i~DG~~ 141 (284) T TIGR00417 62 HEMIAHVPLFAHPNPKKVLVIGGGDGGVLREVVKHKSVEKATLVDIDEKVIELSRKYLPKLAAGSFDDERVDLAIDDGFK 141 (284) T ss_pred HHHHHHHHHHCCCCCCEEEEEECCCCCEEEEEEECCCCCEEEEEECCHHHHHHHHHHCHHHHCCCCCCCEEEEEECCCHH T ss_conf 78998756536898854789963888468788755981679999727478999888261210566588803589825179 Q ss_pred HHCCC-----CCCCCHHHHHHHHHCCCCH---------HHHHHHHHHHHCCCCEEEEEECCCCCCHHHHHHHHHHHHHHH Q ss_conf 10143-----3352226666674222346---------999999999818787089840686763347788998754542 Q gi|254780322|r 96 EIPSI-----SQSVDLILSPLNLHIINDT---------LEMFSKINHMLKPGGMFLAAIPGIGTLHELRKALLKAETELT 161 (273) Q Consensus 96 ~l~~~-----~~sfDli~s~~~l~w~~d~---------~~~l~~~~r~LkpgG~~~~s~~~~~~~~el~~~~~~a~~~~~ 161 (273) T Consensus 142 fl~~~Gasdv~~~fDVIIvDst-----DPvGPa~~LF~~~Fy~~~~~aL~~~Gv~v~Qss-------------------- 196 (284) T TIGR00417 142 FLRDTGASDVEKKFDVIIVDST-----DPVGPAETLFTKEFYELLKKALNEDGVIVAQSS-------------------- 196 (284) T ss_pred HHHHCCCCCCCCCCCEEEEECC-----CCCCCCCCHHHHHHHHHHHHHCCCCCEEEEECC-------------------- T ss_conf 8976152222121447997277-----895655410217999999985299988998027-------------------- Q ss_pred CCCCCCCCCCCC---HHHHHHHHHHCCCCCEEEEEEEEEEECCCHHHHHHHHH Q ss_conf 686642167459---99999999850898546773136883589899999999 Q gi|254780322|r 162 GGASPRVIPFMD---IKSAGTLMEKSGFISPIIDQDTYTVYYKSMLHLMHDLR 211 (273) Q Consensus 162 ~~~~~~~~~~~~---~~~~~~ll~~agf~~~~~~~~~~~~~~~~~~~l~~~lk 211 (273) T Consensus 197 ------~s~~~~~~~~~d~~r~~~~~~F~~~~~y~~~iPTYp~G---~~~F~~ 240 (284) T TIGR00417 197 ------ESPWLQLELIKDLKRKVKEVPFPITEYYTAAIPTYPSG---LWSFII 240 (284) T ss_pred ------CCCCCCHHHHHHHHHHHHHCCCCCCEEEEEECCCCHHH---HHHHHH T ss_conf ------88432748888788877526897530466407865023---545322

HHsearch alignment for GI: 254780322 and conserved domain: TIGR00417