ID RHMA_KLEP7 Reviewed; 267 AA.
AC A6TBU6;
DT 04-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 21-AUG-2007, sequence version 1.
DT 27-MAR-2024, entry version 79.
DE RecName: Full=2-keto-3-deoxy-L-rhamnonate aldolase {ECO:0000255|HAMAP-Rule:MF_01290};
DE Short=KDR aldolase {ECO:0000255|HAMAP-Rule:MF_01290};
DE EC=4.1.2.53 {ECO:0000255|HAMAP-Rule:MF_01290};
DE AltName: Full=2-dehydro-3-deoxyrhamnonate aldolase {ECO:0000255|HAMAP-Rule:MF_01290};
GN Name=rhmA {ECO:0000255|HAMAP-Rule:MF_01290};
GN OrderedLocusNames=KPN78578_26060; ORFNames=KPN_02650;
OS Klebsiella pneumoniae subsp. pneumoniae (strain ATCC 700721 / MGH 78578).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX NCBI_TaxID=272620;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700721 / MGH 78578;
RG The Klebsiella pneumonia Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Spieth J., Clifton W.S., Latreille P.,
RA Sabo A., Pepin K., Bhonagiri V., Porwollik S., Ali J., Wilson R.K.;
RL Submitted (SEP-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the reversible retro-aldol cleavage of 2-keto-3-
CC deoxy-L-rhamnonate (KDR) to pyruvate and lactaldehyde.
CC {ECO:0000255|HAMAP-Rule:MF_01290}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-dehydro-3-deoxy-L-rhamnonate = (S)-lactaldehyde + pyruvate;
CC Xref=Rhea:RHEA:25784, ChEBI:CHEBI:15361, ChEBI:CHEBI:18041,
CC ChEBI:CHEBI:58371; EC=4.1.2.53; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01290};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01290};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01290};
CC -!- SUBUNIT: Homohexamer. {ECO:0000255|HAMAP-Rule:MF_01290}.
CC -!- SIMILARITY: Belongs to the HpcH/HpaI aldolase family. KDR aldolase
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01290}.
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DR EMBL; CP000647; ABR78067.1; -; Genomic_DNA.
DR RefSeq; WP_004899554.1; NC_009648.1.
DR AlphaFoldDB; A6TBU6; -.
DR SMR; A6TBU6; -.
DR STRING; 272620.KPN_02650; -.
DR PaxDb; 272620-KPN_02650; -.
DR EnsemblBacteria; ABR78067; ABR78067; KPN_02650.
DR KEGG; kpn:KPN_02650; -.
DR HOGENOM; CLU_059964_1_0_6; -.
DR Proteomes; UP000000265; Chromosome.
DR GO; GO:0106099; F:2-keto-3-deoxy-L-rhamnonate aldolase activity; IEA:UniProtKB-EC.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR Gene3D; 3.20.20.60; Phosphoenolpyruvate-binding domains; 1.
DR HAMAP; MF_01290; KDR_aldolase; 1.
DR InterPro; IPR005000; Aldolase/citrate-lyase_domain.
DR InterPro; IPR023593; KDR_aldolase.
DR InterPro; IPR015813; Pyrv/PenolPyrv_Kinase-like_dom.
DR InterPro; IPR040442; Pyrv_Kinase-like_dom_sf.
DR PANTHER; PTHR30502; 2-KETO-3-DEOXY-L-RHAMNONATE ALDOLASE; 1.
DR PANTHER; PTHR30502:SF5; 2-KETO-3-DEOXY-L-RHAMNONATE ALDOLASE; 1.
DR Pfam; PF03328; HpcH_HpaI; 1.
DR SUPFAM; SSF51621; Phosphoenolpyruvate/pyruvate domain; 1.
PE 3: Inferred from homology;
KW Lyase; Magnesium; Metal-binding.
FT CHAIN 1..267
FT /note="2-keto-3-deoxy-L-rhamnonate aldolase"
FT /id="PRO_0000353172"
FT ACT_SITE 49
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT BINDING 151
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT BINDING 153
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT BINDING 178
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT BINDING 179
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT BINDING 179
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT SITE 74
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
FT SITE 88
FT /note="Increases basicity of active site His"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01290"
SQ SEQUENCE 267 AA; 28917 MW; CF35C2E2696E1951 CRC64;
MNALLSNPFK RGLLRGETQI GLWLSSTSSY MAEIAATSGY DWLLIDGEHA PNTIQDLYHQ
LQAIAPYASQ PVIRPVEGNR SLIKQVLDIG ARTLLVPMVD TAEQAREVVS ATRYPPIGSR
GVGAGVARAA RWGRVENYMA EANDELCLLI QVESRTALEN LDAILEVDGI DGVFIGPADL
SASLGYPDDA GHPDVQRVIE QSIRRIRAAG KAAGFLAVDP AMAEKCLAWG ANFVAVGVDT
MLYTQALDRR LAMFKSDSAQ PQEKTSY
//
