ID C6M6A7_NEISI Unreviewed; 580 AA.
AC C6M6A7;
DT 22-SEP-2009, integrated into UniProtKB/TrEMBL.
DT 22-SEP-2009, sequence version 1.
DT 27-MAR-2024, entry version 69.
DE RecName: Full=Polyamine aminopropyltransferase {ECO:0000256|HAMAP-Rule:MF_00198};
DE AltName: Full=Putrescine aminopropyltransferase {ECO:0000256|HAMAP-Rule:MF_00198};
DE Short=PAPT {ECO:0000256|HAMAP-Rule:MF_00198};
DE AltName: Full=Spermidine synthase {ECO:0000256|HAMAP-Rule:MF_00198};
DE Short=SPDS {ECO:0000256|HAMAP-Rule:MF_00198};
DE Short=SPDSY {ECO:0000256|HAMAP-Rule:MF_00198};
DE EC=2.5.1.16 {ECO:0000256|HAMAP-Rule:MF_00198};
GN Name=speE {ECO:0000256|HAMAP-Rule:MF_00198};
GN ORFNames=NEISICOT_02059 {ECO:0000313|EMBL:EET44106.1};
OS Neisseria sicca ATCC 29256.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC Neisseria.
OX NCBI_TaxID=547045 {ECO:0000313|EMBL:EET44106.1, ECO:0000313|Proteomes:UP000005365};
RN [1] {ECO:0000313|EMBL:EET44106.1, ECO:0000313|Proteomes:UP000005365}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29256 {ECO:0000313|EMBL:EET44106.1,
RC ECO:0000313|Proteomes:UP000005365};
RA Weinstock G., Sodergren E., Clifton S., Fulton L., Fulton B., Courtney L.,
RA Fronick C., Harrison M., Strong C., Farmer C., Delahaunty K., Markovic C.,
RA Hall O., Minx P., Tomlinson C., Mitreva M., Nelson J., Hou S., Wollam A.,
RA Pepin K.H., Johnson M., Bhonagiri V., Nash W.E., Warren W., Chinwalla A.,
RA Mardis E.R., Wilson R.K.;
RL Submitted (JUL-2009) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the irreversible transfer of a propylamine group
CC from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to
CC putrescine (1,4-diaminobutane) to yield spermidine. {ECO:0000256|HAMAP-
CC Rule:MF_00198}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=putrescine + S-adenosyl 3-(methylsulfanyl)propylamine = H(+) +
CC S-methyl-5'-thioadenosine + spermidine; Xref=Rhea:RHEA:12721,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17509, ChEBI:CHEBI:57443,
CC ChEBI:CHEBI:57834, ChEBI:CHEBI:326268; EC=2.5.1.16;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00198};
CC -!- PATHWAY: Amine and polyamine biosynthesis; spermidine biosynthesis;
CC spermidine from putrescine: step 1/1. {ECO:0000256|HAMAP-
CC Rule:MF_00198}.
CC -!- SUBUNIT: Homodimer or homotetramer. {ECO:0000256|HAMAP-Rule:MF_00198}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_00198};
CC Multi-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_00198}.
CC -!- SIMILARITY: Belongs to the spermidine/spermine synthase family.
CC {ECO:0000256|ARBA:ARBA00007867, ECO:0000256|HAMAP-Rule:MF_00198}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00198}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EET44106.1}.
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DR EMBL; ACKO02000012; EET44106.1; -; Genomic_DNA.
DR AlphaFoldDB; C6M6A7; -.
DR STRING; 490.A6J88_06635; -.
DR eggNOG; COG4262; Bacteria.
DR UniPathway; UPA00248; UER00314.
DR Proteomes; UP000005365; Unassembled WGS sequence.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0004766; F:spermidine synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0010487; F:thermospermine synthase activity; IEA:UniProt.
DR GO; GO:0008295; P:spermidine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR HAMAP; MF_00198; Spermidine_synth; 1.
DR InterPro; IPR030374; PABS.
DR InterPro; IPR030373; PABS_CS.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR InterPro; IPR001045; Spermi_synthase.
DR NCBIfam; NF037959; MFS_SpdSyn; 1.
DR PANTHER; PTHR43317:SF9; POLYAMINE AMINOPROPYLTRANSFERASE 2; 1.
DR PANTHER; PTHR43317; THERMOSPERMINE SYNTHASE ACAULIS5; 1.
DR Pfam; PF01564; Spermine_synth; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
DR PROSITE; PS01330; PABS_1; 1.
DR PROSITE; PS51006; PABS_2; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|HAMAP-Rule:MF_00198};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_00198};
KW Polyamine biosynthesis {ECO:0000256|ARBA:ARBA00023115, ECO:0000256|HAMAP-
KW Rule:MF_00198};
KW Spermidine biosynthesis {ECO:0000256|ARBA:ARBA00023066, ECO:0000256|HAMAP-
KW Rule:MF_00198};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00198}; Transmembrane {ECO:0000256|HAMAP-Rule:MF_00198};
KW Transmembrane helix {ECO:0000256|HAMAP-Rule:MF_00198}.
FT TRANSMEM 83..107
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 113..137
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 149..172
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 178..199
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 211..234
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 240..259
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 271..290
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT DOMAIN 285..520
FT /note="PABS"
FT /evidence="ECO:0000259|PROSITE:PS51006"
FT ACT_SITE 441
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198,
FT ECO:0000256|PROSITE-ProRule:PRU00354"
FT BINDING 315
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 345
FT /ligand="spermidine"
FT /ligand_id="ChEBI:CHEBI:57834"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 369
FT /ligand="spermidine"
FT /ligand_id="ChEBI:CHEBI:57834"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 389
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 423..424
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
SQ SEQUENCE 580 AA; 64806 MW; 11ED828EB897380C CRC64;
MDYATTLSHL KLKGGTANRS FLKKRFLTRK TIHSIPKAAR QDTHFGSKHT VLHIKPLYCR
IIRFSDFRRP LYNAHTMTAN RTLIISVFIV ASCGLAYELI IAALASYLLG DSILQFSSVI
GLYLFSMGIG AHLTRYIKDE DVLHRFIEIE LLVGIIGGIS ALALFVAFGL SAAPFRTLLY
AFVLIVGAVV GMEIPLVMRV LNRKGAEFKE LVAKVLTFDY LGALAVSLLF PLLLAPKLGM
ARSALLFGIL NAAVAYLTAR VFKAELPRYR AIRLRALIVL SVLAATFAYA DRISFKAEQS
YFGDPVVYQS HSPYQRLVVT RWKDDTRLYI NGNLQFSSRD EARYHEALVL PAMQMVQNAA
RILILGGGDG LAAREVLKYP QVKHVTLVDL DPDMTATFKT SATLSALNQG SLSHPKMHVV
NDDAAKWLEG SSEKFDVIII DLPDPSNFSL GKLYSVPMYR LVARHLQPQG KIVVQSTSPY
FAPNAYWSVV ATLEAAGLST APYHVYVPSF GEWGFVLAGF DKQFPVPQKF DVPTRYLNAQ
TAAEMFRFPP DMARRKVEPN YLNNQILVSY FESDWRNVTR
//
