PAT_CITK8
ID PAT_CITK8 Reviewed; 459 AA.
AC A8APX8;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 28-JUL-2009, sequence version 2.
DT 03-AUG-2022, entry version 87.
DE RecName: Full=Putrescine aminotransferase {ECO:0000255|HAMAP-Rule:MF_01276};
DE Short=PAT {ECO:0000255|HAMAP-Rule:MF_01276};
DE Short=PATase {ECO:0000255|HAMAP-Rule:MF_01276};
DE EC=2.6.1.82 {ECO:0000255|HAMAP-Rule:MF_01276};
DE AltName: Full=Cadaverine transaminase {ECO:0000255|HAMAP-Rule:MF_01276};
DE AltName: Full=Diamine transaminase {ECO:0000255|HAMAP-Rule:MF_01276};
DE EC=2.6.1.29 {ECO:0000255|HAMAP-Rule:MF_01276};
DE AltName: Full=Putrescine transaminase {ECO:0000255|HAMAP-Rule:MF_01276};
DE AltName: Full=Putrescine--2-oxoglutaric acid transaminase {ECO:0000255|HAMAP-Rule:MF_01276};
GN Name=patA {ECO:0000255|HAMAP-Rule:MF_01276}; OrderedLocusNames=CKO_04486;
OS Citrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Citrobacter.
OX NCBI_TaxID=290338;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-895 / CDC 4225-83 / SGSC4696;
RG The Citrobacter koseri Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA Latreille P., Courtney L., Wang C., Pepin K., Bhonagiri V., Nash W.,
RA Johnson M., Thiruvilangam P., Wilson R.;
RL Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the aminotransferase reaction from putrescine to 2-
CC oxoglutarate, leading to glutamate and 4-aminobutanal, which
CC spontaneously cyclizes to form 1-pyrroline. This is the first step in
CC one of two pathways for putrescine degradation, where putrescine is
CC converted into 4-aminobutanoate (gamma-aminobutyrate or GABA) via 4-
CC aminobutanal. Also functions as a cadaverine transaminase in a a L-
CC lysine degradation pathway to succinate that proceeds via cadaverine,
CC glutarate and L-2-hydroxyglutarate. {ECO:0000255|HAMAP-Rule:MF_01276}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + an alkane-alpha,omega-diamine = an omega-
CC aminoaldehyde + L-glutamate; Xref=Rhea:RHEA:18217, Rhea:RHEA-
CC COMP:9766, Rhea:RHEA-COMP:12750, ChEBI:CHEBI:16810,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:70977, ChEBI:CHEBI:133427;
CC EC=2.6.1.29; Evidence={ECO:0000255|HAMAP-Rule:MF_01276};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:18218;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01276};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + putrescine = 1-pyrroline + H2O + L-glutamate;
CC Xref=Rhea:RHEA:12268, ChEBI:CHEBI:15377, ChEBI:CHEBI:16810,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:36781, ChEBI:CHEBI:326268;
CC EC=2.6.1.82; Evidence={ECO:0000255|HAMAP-Rule:MF_01276};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:12269;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01276};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + cadaverine = 5-aminopentanal + L-glutamate;
CC Xref=Rhea:RHEA:61624, ChEBI:CHEBI:16810, ChEBI:CHEBI:29985,
CC ChEBI:CHEBI:58384, ChEBI:CHEBI:144896; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01276};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:61625;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01276};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01276};
CC -!- PATHWAY: Amine and polyamine degradation; putrescine degradation; 4-
CC aminobutanal from putrescine (transaminase route): step 1/1.
CC {ECO:0000255|HAMAP-Rule:MF_01276}.
CC -!- SIMILARITY: Belongs to the class-III pyridoxal-phosphate-dependent
CC aminotransferase family. Putrescine aminotransferase subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01276}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABV15541.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000822; ABV15541.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; A8APX8; -.
DR SMR; A8APX8; -.
DR STRING; 290338.CKO_04486; -.
DR EnsemblBacteria; ABV15541; ABV15541; CKO_04486.
DR KEGG; cko:CKO_04486; -.
DR HOGENOM; CLU_016922_10_0_6; -.
DR UniPathway; UPA00188; UER00290.
DR Proteomes; UP000008148; Chromosome.
DR GO; GO:0033094; F:butane-1,4-diamine:2-oxoglutarate aminotransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019161; F:diamine transaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019477; P:L-lysine catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0009447; P:putrescine catabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd00610; OAT_like; 1.
DR Gene3D; 3.40.640.10; -; 1.
DR Gene3D; 3.90.1150.10; -; 1.
DR HAMAP; MF_01276; Putres_aminotrans_3; 1.
DR InterPro; IPR005814; Aminotrans_3.
DR InterPro; IPR017747; Putrescine_aminotransferase.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR Pfam; PF00202; Aminotran_3; 1.
DR PIRSF; PIRSF000521; Transaminase_4ab_Lys_Orn; 1.
DR SUPFAM; SSF53383; SSF53383; 1.
DR TIGRFAMs; TIGR03372; putres_am_tran; 1.
DR PROSITE; PS00600; AA_TRANSFER_CLASS_3; 1.
PE 3: Inferred from homology;
KW Aminotransferase; Pyridoxal phosphate; Reference proteome; Transferase.
FT CHAIN 1..459
FT /note="Putrescine aminotransferase"
FT /id="PRO_0000379543"
FT BINDING 150..151
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01276"
FT BINDING 274
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01276"
FT BINDING 332
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01276"
FT MOD_RES 300
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01276"
SQ SEQUENCE 459 AA; 49653 MW; 79D85E54D30DCDCB CRC64;
MNRLPSSASA LACSAHALNL IEKRTLDHEE MKALNREVID YFKEHVNPGF LEYRKSVTAG
GDYGAVEWQA GSLNTLVDTQ GQEFIDCLGG FGIFNVGHRN PVVVSAVQNQ LAKQPLHSQE
LLDPLRAMLA KTLAALTPGK LKYSFFSNSG TESVEAALKL AKAYQSPRGK FTFIATSGAF
HGKSLGSLSA TAKSTFRKPF MPLLPGFRHV PFGNIEAMRT ALSECKKTGD DVAAVILEPI
QGEGGVILPP QGYLTAVRKL CDEFGALMIL DEVQTGMGRT GKMFACEHEN VQPDILCLAK
ALGGGVMPVG ATIATEEVFS VLFDNPFLHT TTFGGNPLAC AAALATINVL LEQNLPAQAE
QKGDMLLDGF LQLAREYPDL VQDARGKGML MAIEFVDNEI GYNFASEMFR QRVLVAGTLN
NSKTIRIEPP LTLTIEQCEQ VLKATRKALA ALRVSVEET
