SPEE2_BACCR
ID SPEE2_BACCR Reviewed; 366 AA.
AC Q815E8;
DT 15-MAR-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2003, sequence version 1.
DT 03-AUG-2022, entry version 105.
DE RecName: Full=Polyamine aminopropyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00198};
DE AltName: Full=Putrescine aminopropyltransferase {ECO:0000255|HAMAP-Rule:MF_00198};
DE Short=PAPT {ECO:0000255|HAMAP-Rule:MF_00198};
DE AltName: Full=Spermidine synthase {ECO:0000255|HAMAP-Rule:MF_00198};
DE Short=SPDS {ECO:0000255|HAMAP-Rule:MF_00198};
DE Short=SPDSY {ECO:0000255|HAMAP-Rule:MF_00198};
DE EC=2.5.1.16 {ECO:0000255|HAMAP-Rule:MF_00198};
GN Name=speE2 {ECO:0000255|HAMAP-Rule:MF_00198}; OrderedLocusNames=BC_5213;
OS Bacillus cereus (strain ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC
OS 15305 / NCIMB 9373 / NCTC 2599 / NRRL B-3711).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=226900;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC 15305 / NCIMB 9373
RC / NCTC 2599 / NRRL B-3711;
RX PubMed=12721630; DOI=10.1038/nature01582;
RA Ivanova N., Sorokin A., Anderson I., Galleron N., Candelon B., Kapatral V.,
RA Bhattacharyya A., Reznik G., Mikhailova N., Lapidus A., Chu L., Mazur M.,
RA Goltsman E., Larsen N., D'Souza M., Walunas T., Grechkin Y., Pusch G.,
RA Haselkorn R., Fonstein M., Ehrlich S.D., Overbeek R., Kyrpides N.C.;
RT "Genome sequence of Bacillus cereus and comparative analysis with Bacillus
RT anthracis.";
RL Nature 423:87-91(2003).
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:0000255|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:0000255|HAMAP-Rule:MF_00198};
CC -!- PATHWAY: Amine and polyamine biosynthesis; spermidine biosynthesis;
CC spermidine from putrescine: step 1/1. {ECO:0000255|HAMAP-
CC Rule:MF_00198}.
CC -!- SUBUNIT: Homodimer or homotetramer. {ECO:0000255|HAMAP-Rule:MF_00198}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00198}.
CC -!- SIMILARITY: Belongs to the spermidine/spermine synthase family.
CC {ECO:0000255|HAMAP-Rule:MF_00198}.
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DR EMBL; AE016877; AAP12077.1; -; Genomic_DNA.
DR RefSeq; NP_834876.1; NC_004722.1.
DR RefSeq; WP_001123965.1; NZ_CP034551.1.
DR AlphaFoldDB; Q815E8; -.
DR SMR; Q815E8; -.
DR STRING; 226900.BC_5213; -.
DR EnsemblBacteria; AAP12077; AAP12077; BC_5213.
DR KEGG; bce:BC5213; -.
DR PATRIC; fig|226900.8.peg.5377; -.
DR HOGENOM; CLU_039263_0_0_9; -.
DR OMA; TSYKKDK; -.
DR UniPathway; UPA00248; UER00314.
DR Proteomes; UP000001417; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004766; F:spermidine synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006596; P:polyamine biosynthetic process; IBA:GO_Central.
DR GO; GO:0008295; P:spermidine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.150; -; 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 SUPFAM; SSF53335; SSF53335; 1.
DR PROSITE; PS01330; PABS_1; 1.
DR PROSITE; PS51006; PABS_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Polyamine biosynthesis; Reference proteome;
KW Spermidine biosynthesis; Transferase.
FT CHAIN 1..366
FT /note="Polyamine aminopropyltransferase 2"
FT /id="PRO_0000156468"
FT DOMAIN 74..305
FT /note="PABS"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
FT REGION 20..61
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 20..56
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 225
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
FT BINDING 100
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
FT BINDING 129
FT /ligand="spermidine"
FT /ligand_id="ChEBI:CHEBI:57834"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
FT BINDING 153
FT /ligand="spermidine"
FT /ligand_id="ChEBI:CHEBI:57834"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
FT BINDING 173
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
FT BINDING 207..208
FT /ligand="S-methyl-5'-thioadenosine"
FT /ligand_id="ChEBI:CHEBI:17509"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00198"
SQ SEQUENCE 366 AA; 42015 MW; 891ABE33686F1FD7 CRC64;
MPKHRKQSKI KIYRITSYKK DKRSELDSDK FELEQQDKHD IQDKQDKQDE QNKQDKQVQS
ENVTIVPTDS HSLDVWDEIS LKEIQAGEHT SLFEEKSNYQ NINLVQVNDV RLYLDKQLQF
SSVDEQIYHE ALVHPIMAKV IDPKRVLILG GGDGLALREV LKYETVLHVD LVDLDEAMIN
MARNVPEIVS LNKNAFFDNR VNVHVCDAKE FLNSPSSLYD VIIIDFPDPA TELLSTLYTS
ELFARIATFL TEDGAFVCQS NSPADAPLVY WSIGNTIEHA GLTVKSYHTI VPSFGTDWGF
HLATNSAHVL DQIEQLYVVP TPRTLPALLF PLFQFKEEHL EQRNLALLNS ESNLILHQCY
KQEMKF
