>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=94.78 E-value=0.026 Score=34.67 Aligned_cols=165 Identities=17% Similarity=0.274 Sum_probs=102.5 Q ss_pred CCHHHHHHHHHHCCCC---CCCEEEEECCCCCHHHHHHHHCC-CCEEEEECCCCCCHHHHHHHHHH-----HH-CCCCCC Q ss_conf 3989999999971989---99879997589882346775023-52599842554303688787532-----20-012200 Q gi|254780398|r 31 LDLNILKKIAESSGSL---DGITVIEIGAGPGNLTQMLLTLG-ARKVIVIEKDQQFFPILKDISSQ-----HP-NRLEII 100 (284) Q Consensus 31 ~d~~i~~~iv~~~~~~---~~~~VlEIGpG~G~LT~~Ll~~~-~~~v~aiEiD~~~~~~l~~~~~~-----~~-~~~~ii 100 (284) T Consensus 56 ~DEF~YhEMi~HvpL~~H~NPk~VLvIGGGDGG~lREV~KH~sVE~~~lVdID~~VI~~srkyLP~~~~g~~dderv~~~ 135 (284) T TIGR00417 56 RDEFIYHEMIAHVPLFAHPNPKKVLVIGGGDGGVLREVVKHKSVEKATLVDIDEKVIELSRKYLPKLAAGSFDDERVDLA 135 (284) T ss_pred CCCHHHHHHHHHHHHHCCCCCCEEEEEECCCCCEEEEEEECCCCCEEEEEECCHHHHHHHHHHCHHHHCCCCCCCEEEEE T ss_conf 54435678998756536898854789963888468788755981679999727478999888261210566588803589 Q ss_pred HHHHCCCCHHHH--CCCCCCEEEE---ECCCHHHHHHH----HHHHHHHHCCCCCCCHHHHEEE-HHHHHHHHHCCCHHH Q ss_conf 000001431552--1332220112---02322467889----9999852010000001102033-447887530123123 Q gi|254780398|r 101 QDDALKVDFEKF--FNISSPIRII---ANLPYNIGTRL----LFNWISADTWPPFWESLTLLFQ-KEVGERITAQKNSPH 170 (284) Q Consensus 101 ~~Dal~~d~~~~--~~~~~~~~vv---gNLPYnIss~I----l~~ll~~~~~~~~~~~~vlmvQ-kEvA~Rl~a~pg~k~ 170 (284) T Consensus 136 i~DG~~fl-~~~Gasdv~~~fDVIIvDstDPvGPa~~LF~~~Fy~~~~~aL~~----~Gv~v~Qss~----------s~~ 200 (284) T TIGR00417 136 IDDGFKFL-RDTGASDVEKKFDVIIVDSTDPVGPAETLFTKEFYELLKKALNE----DGVIVAQSSE----------SPW 200 (284) T ss_pred ECCCHHHH-HHCCCCCCCCCCCEEEEECCCCCCCCCCHHHHHHHHHHHHHCCC----CCEEEEECCC----------CCC T ss_conf 82517989-76152222121447997277895655410217999999985299----9889980278----------843 Q ss_pred HHHHHHHHCCCCCEEEE-CCCCCCEECCCCCCCEEEEEECCC Q ss_conf 32345432013320120-001100001057875788730125 Q gi|254780398|r 171 YGRLSVLTGWRTKATMM-FDISPHVFFPSPKVTSTVIHFIPH 211 (284) Q Consensus 171 Yg~LSv~~q~~~~v~~~-~~V~~~~F~P~PkVdS~vi~l~pk 211 (284) T Consensus 201 ~-~~~~~~d~~r~~~~~~F~~~~~y~~~iPTYp~G~~~F~~~ 241 (284) T TIGR00417 201 L-QLELIKDLKRKVKEVPFPITEYYTAAIPTYPSGLWSFIIA 241 (284) T ss_pred C-CHHHHHHHHHHHHHCCCCCCEEEEEECCCCHHHHHHHHHC T ss_conf 2-7488887888775268975304664078650235453220

HHsearch alignment for GI: 254780398 and conserved domain: TIGR00417