NANA_ECO55
ID NANA_ECO55 Reviewed; 297 AA.
AC B7LHT3;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 03-AUG-2022, entry version 73.
DE RecName: Full=N-acetylneuraminate lyase {ECO:0000255|HAMAP-Rule:MF_01237};
DE Short=NAL {ECO:0000255|HAMAP-Rule:MF_01237};
DE Short=Neu5Ac lyase {ECO:0000255|HAMAP-Rule:MF_01237};
DE EC=4.1.3.3 {ECO:0000255|HAMAP-Rule:MF_01237};
DE AltName: Full=N-acetylneuraminate pyruvate-lyase {ECO:0000255|HAMAP-Rule:MF_01237};
DE AltName: Full=N-acetylneuraminic acid aldolase {ECO:0000255|HAMAP-Rule:MF_01237};
DE AltName: Full=Sialate lyase {ECO:0000255|HAMAP-Rule:MF_01237};
DE AltName: Full=Sialic acid aldolase {ECO:0000255|HAMAP-Rule:MF_01237};
DE AltName: Full=Sialic acid lyase {ECO:0000255|HAMAP-Rule:MF_01237};
GN Name=nanA {ECO:0000255|HAMAP-Rule:MF_01237};
GN OrderedLocusNames=EC55989_3638;
OS Escherichia coli (strain 55989 / EAEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585055;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=55989 / EAEC;
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
CC -!- FUNCTION: Catalyzes the reversible aldol cleavage of N-acetylneuraminic
CC acid (sialic acid; Neu5Ac) to form pyruvate and N-acetylmannosamine
CC (ManNAc) via a Schiff base intermediate. {ECO:0000255|HAMAP-
CC Rule:MF_01237}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=aceneuramate = N-acetyl-D-mannosamine + pyruvate;
CC Xref=Rhea:RHEA:23296, ChEBI:CHEBI:15361, ChEBI:CHEBI:17122,
CC ChEBI:CHEBI:173083; EC=4.1.3.3; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01237};
CC -!- PATHWAY: Amino-sugar metabolism; N-acetylneuraminate degradation; D-
CC fructose 6-phosphate from N-acetylneuraminate: step 1/5.
CC {ECO:0000255|HAMAP-Rule:MF_01237}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01237}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01237}.
CC -!- SIMILARITY: Belongs to the DapA family. NanA subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01237}.
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DR EMBL; CU928145; CAU99884.1; -; Genomic_DNA.
DR RefSeq; WP_000224714.1; NC_011748.1.
DR AlphaFoldDB; B7LHT3; -.
DR SMR; B7LHT3; -.
DR EnsemblBacteria; CAU99884; CAU99884; EC55989_3638.
DR GeneID; 66506804; -.
DR KEGG; eck:EC55989_3638; -.
DR HOGENOM; CLU_049343_6_0_6; -.
DR OMA; LPPMRYK; -.
DR UniPathway; UPA00629; UER00680.
DR Proteomes; UP000000746; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008747; F:N-acetylneuraminate lyase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0019262; P:N-acetylneuraminate catabolic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00954; NAL; 1.
DR Gene3D; 3.20.20.70; -; 1.
DR HAMAP; MF_01237; N_acetylneuram_lyase; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR002220; DapA-like.
DR InterPro; IPR005264; NanA.
DR InterPro; IPR020625; Schiff_base-form_aldolases_AS.
DR InterPro; IPR020624; Schiff_base-form_aldolases_CS.
DR Pfam; PF00701; DHDPS; 1.
DR PIRSF; PIRSF001365; DHDPS; 1.
DR PRINTS; PR00146; DHPICSNTHASE.
DR SMART; SM01130; DHDPS; 1.
DR TIGRFAMs; TIGR00683; nanA; 1.
DR PROSITE; PS00665; DHDPS_1; 1.
DR PROSITE; PS00666; DHDPS_2; 1.
PE 3: Inferred from homology;
KW Carbohydrate metabolism; Cytoplasm; Lyase; Schiff base.
FT CHAIN 1..297
FT /note="N-acetylneuraminate lyase"
FT /id="PRO_1000165004"
FT ACT_SITE 165
FT /note="Schiff-base intermediate with substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01237"
FT BINDING 47..48
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01237"
FT SITE 137
FT /note="Involved in proton transfer during cleavage"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01237"
SQ SEQUENCE 297 AA; 32593 MW; BA9F30B4A7624167 CRC64;
MATNLRGVMA ALLTPFDQQQ ALDKASLRRL VQFNIQQGID GLYVGGSTGE AFVQSLSERE
QVLEIVAEEA KGKIKLIAHV GCVSTAESQQ LAASAKRYGF DAVSAVTPFY YPFSFEEHCD
HYRAIIDSAD GLPMVVYNIP ALSGVKLTLD QINTLVTLPG VGALKQTSGD LYQMEQIRRE
HPDLVLYNGY DEIFASGLLA GADGGIGSTY NIMGWRYQGI VKALKEGDIQ TAQKLQTECN
KVIDLLIKTG VFRGLKTVLH YMDVVSVPLC RKPFGPVDEK YLPELKALAQ QLMQERG
