P52788 (SPSY_HUMAN) Homo sapiens (Human)

Spermine synthase UniProtKBInterproStringInteractive Modelling

366 aa; Sequence (Fasta) ; (Isoform 2; ) Identical sequences: Pongo abelii: A0A2J8W405; Pan troglodytes: K7CJI9; Callithrix jacchus: U3FPX7; Nomascus leucogenys: G1RG03; Cebus capucinus imitator: A0A2K5SJR4

Sequence Features

 276Proton acceptor.
 56G -> S (in MRXSSR; a reduced spermine/ spermidine ratio is observed in patient lymphoblastoid cells consistent with impaired spermine biosynthesis; dbSNP:rs121434610). VAR_076449 dbSNP
 58F -> L (in MRXSSR; dbSNP:rs397515549). VAR_072748 dbSNP
 60N -> S (in dbSNP:rs1394834572). VAR_071048 dbSNP
 67G -> E (in MRXSSR; a reduced spermine/ spermidine ratio is observed in patient lymphoblastoid cells consistent with impaired spermine biosynthesis; dbSNP:rs397515550). VAR_076450 dbSNP
 132V -> G (in MRXSSR; dbSNP:rs267607076). VAR_076451 dbSNP
 328Y -> C (in MRXSSR; mild disease phenotype; a reduced spermine/spermidine ratio is observed in patient lymphoblastoid cells consistent with impaired spermine biosynthesis; dbSNP:rs397515553). VAR_076452 dbSNP
 21-117Spermine synthase, N-terminal
IPR040900PF17950
 123-172Spermidine synthase, tetramerisation dom ain
IPR035246PF17284

Sequence Alignments

Experimental structures

DescriptionOligo-stateLigandsStructureRangeDownload
'Crystal structure of human spermine synthase in complex with spermidine and 5-methylthioadenosine'homo-2-mer MTA;SPD;3c6k5-366
Crystal structure of human spermine synthase in complex with spermine and 5-methylthioadenosinehomo-2-mer MTA;SPM;3c6m5-366

Homology models built on isoform sequence

Isoform #Oligo-stateLigandsQMEANTemplateRangeSeq id (%)ReportDownload
2 Heteromer
MTA;SPD;-0.213c6k.1.A5-313
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