Entry
Name
spermine synthase;
spermidine aminopropyltransferase;
spermine synthetase;
S-adenosylmethioninamine:spermidine 3-aminopropyltransferase;
S-adenosyl 3-(methylthio)propylamine:spermidine 3-aminopropyltransferase
Class
Transferases;
Transferring alkyl or aryl groups, other than methyl groups;
Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
BRITE hierarchy
Sysname
S-adenosyl 3-(methylsulfanyl)propylamine:spermidine 3-aminopropyltransferase
Reaction(IUBMB)
S-adenosyl 3-(methylsulfanyl)propylamine + spermidine = S-methyl-5'-thioadenosine + spermine [RN:
R02869 ]
Reaction(KEGG)
Substrate
S-adenosyl 3-(methylsulfanyl)propylamine [CPD:
C01137 ];
spermidine [CPD:
C00315 ]
Product
S-methyl-5'-thioadenosine [CPD:
C00170 ];
spermine [CPD:
C00750 ]
Comment
The enzyme from mammalia is highly specific for spermidine [2,3]. cf. EC
2.5.1.16 (spermidine synthase) and EC
2.5.1.23 (sym-norspermidine synthase).
History
EC 2.5.1.22 created 1982, modified 2013
Pathway
ec00270 Cysteine and methionine metabolism
ec00330 Arginine and proline metabolism
Orthology
Genes
PTR : 107966193(SMS) 739762
PPS : 100974711 100976750 100989256(SMS)
PON : 100447565 100455032(SMS)
NLE : 100592294(SMS) 100603217
HMH : 116469176 116811569(SMS)
CSYR : 103251904(SMS) 103268643
MMUR : 105855748 105882359(SMS)
MCAL : 110287180(Sms) 110292244
MPAH : 110313434(Sms) 110326795
CGE : 100753198(Sms) 100765797 100769528 100769680
MAUA : 101834283(Sms) 121138094
MORG : 121441196 121441330
AAMP : 119805072(Sms) 119826682
HGL : 101696715(Sms) 101718865
CCAN : 109685258(Sms) 109685259
DSP : 122099613(Sms) 122117770
TUP : 102479200 102482622(SMS) 102492216
VVP : 112916263 112919114(SMS)
VLG : 121483312(SMS) 121488958
ORO : 101364730(SMS) 101371201
ZCA : 113912163 113927441 113931549(SMS)
MLX : 118005364 118007648(SMS)
NSU : 110569656(SMS) 110584967
HHV : 120224316(SMS) 120227719
BOM : 102270205 102283485(SMS)
BIU : 109554942(SMS) 109559006
OAS : 101107419(SMS) 101112287
ODA : 120879009 120882634(SMS)
VPC : 102542013(SMS) 102543981
PSIU : 116747534 116747760(SMS)
MYB : 102251500 102257010(SMS)
MMYO : 118653959(SMS) 118677002
PKL : 118719888(SMS) 118723672
SHON : 118987192(SMS) 119003352
AJM : 119037308(SMS) 119052450
PDIC : 114496528 114505041(SMS)
PHAS : 123830033(SMS) 123831549
MMF : 118626871 118635642(SMS)
RFQ : 117023620 117030210(SMS)
TOD : 119243723 119246280(SMS)
SARA : 101548256 101558705(SMS)
ETF : 101651493(SMS) 101659462
DNM : 101416490(SMS) 101442206
GAS : 123242412(SMS) 123254646
ACS : 100552713(sms) 100561005
SANH : 107669379 107700049
CCAR : 109063996 109063998
CAUA : 113038572 113063973
CGIB : 127941692 127946543 127986462
MASI : 127428474 127431325
CGOB : 115013944 115019225(sms)
PLEP : 121952586 121952587
SASA : 100195133(spsy) 106603082
STRU : 115154759 115204368
OGO : 124006947(sms) 124007539
SALP : 111950654 111964261
CCLU : 121541911 121579545
ARUT : 117405458 117407045
SCLV : 120331198 120331225 120331244 120331254 120331256 120331395 120343898 120345154 120345155
DSI : Dsimw501_GD12732(Dsim_GD12732)
AALB : 109423788 109430626
SGRE : 126284548 126284808
PPOI : 119100881 119100882
LAK : 106150669 106156768 106157994 106170740
PDAM : 113671991 113685811
SPIS : 111322739 111334447 111334508
NCS : NCAS_0C03110(NCAS0C03110)
NDI : NDAI_0G02420(NDAI0G02420)
TPF : TPHA_0A01420(TPHA0A01420)
TBL : TBLA_0A04140(TBLA0A04140)
TDL : TDEL_0F04780(TDEL0F04780)
KAF : KAFR_0H02120(KAFR0H02120)
KNG : KNAG_0A02830(KNAG0A02830)
CAL : CAALFM_C113330CA(CaO19.4960)
» show all
Taxonomy
Reference
Authors
Hibasami H, Borchardt RT, Chen SY, Coward JK, Pegg AE.
Title
Studies of inhibition of rat spermidine synthase and spermine synthase.
Journal
Reference
Authors
Pajula RL, Raina A, Eloranta T.
Title
Polyamine synthesis in mammalian tissues. Isolation and characterization of spermine synthase from bovine brain.
Journal
Reference
Authors
Pegg AE, Shuttleworth K, Hibasami H.
Title
Specificity of mammalian spermidine synthase and spermine synthase.
Journal
Other DBs
ExplorEnz - The Enzyme Database: 2.5.1.22
ExPASy - ENZYME nomenclature database: 2.5.1.22