ID A0A1H4HQ00_9BURK Unreviewed; 515 AA.
AC A0A1H4HQ00;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 45.
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=SAMN05444680_1195 {ECO:0000313|EMBL:SEB23899.1};
OS Variovorax sp. YR216.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Variovorax.
OX NCBI_TaxID=1882828 {ECO:0000313|EMBL:SEB23899.1, ECO:0000313|Proteomes:UP000199122};
RN [1] {ECO:0000313|Proteomes:UP000199122}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=YR216 {ECO:0000313|Proteomes:UP000199122};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) 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}.
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DR EMBL; FNRO01000019; SEB23899.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1H4HQ00; -.
DR STRING; 1882828.SAMN05444680_1195; -.
DR UniPathway; UPA00248; UER00314.
DR Proteomes; UP000199122; 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.
DR PROSITE; PS51257; PROKAR_LIPOPROTEIN; 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 21..45
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 51..71
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 83..108
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 114..135
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 147..170
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 176..198
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT TRANSMEM 205..226
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT DOMAIN 223..456
FT /note="PABS"
FT /evidence="ECO:0000259|PROSITE:PS51006"
FT ACT_SITE 377
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198,
FT ECO:0000256|PROSITE-ProRule:PRU00354"
FT BINDING 251
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 281
FT /ligand="spermidine"
FT /ligand_id="ChEBI:CHEBI:57834"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 305
FT /ligand="spermidine"
FT /ligand_id="ChEBI:CHEBI:57834"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 325
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
FT BINDING 359..360
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00198"
SQ SEQUENCE 515 AA; 56335 MW; 3F358D8A2071C0B9 CRC64;
MSKVLPPDAA ARGPQPVEMA LLASVFVVAA CGLVYELSAA ALSSYLLGDS VLQFSTVIGT
YLFAMGVGSW LSRYFDRQLP AHFLRIELLV ALIGGGLPAV LFIANAYVPG AFRLLLYGMV
LVVGALVGLE IPLVMRILRR NVALKELVSQ VLTFDYLGAL AVSIAFPLLL VPQLGMIRTG
LLFGLMNAAV AVWALWLFRH ELRRLGAHAL ACALVLLTLA AAFVLADRIT TLAEDKFYQD
RIIFSATSPY QRIVVTHGSA GHRLFLNGNL QFAERDEYRY HEALVHPAMA AQGAPKKVAV
LGGGDGMAVR EILKYPSVES VTLVELDPNM TRLFTEHETL AALNGGSLKS PKVRIVNTDA
FQWLQQAGDS FDVIVVDFPD PTNFAIGKLY TNSFYALLDK RLSASGYAVI QTTSPLIARK
SFWTVAETIE SVGLQVTPYH AHVPSFGEWG YIIASRRPYR LPEAGALPPG LRFLSAQSLP
LLFDFPLDMA RVPAEVNRLS NQVLVTTYEQ EWGKR
//
