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NANA_ENT38
ID   NANA_ENT38              Reviewed;         297 AA.
AC   A4WF38;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 91.
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}; OrderedLocusNames=Ent638_3661;
OS   Enterobacter sp. (strain 638).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Enterobacter.
OX   NCBI_TaxID=399742;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=638;
RX   PubMed=20485560; DOI=10.1371/journal.pgen.1000943;
RA   Taghavi S., van der Lelie D., Hoffman A., Zhang Y.B., Walla M.D.,
RA   Vangronsveld J., Newman L., Monchy S.;
RT   "Genome sequence of the plant growth promoting endophytic bacterium
RT   Enterobacter sp. 638.";
RL   PLoS Genet. 6:E1000943-E1000943(2010).
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; CP000653; ABP62318.1; -; Genomic_DNA.
DR   RefSeq; WP_015960642.1; NC_009436.1.
DR   AlphaFoldDB; A4WF38; -.
DR   SMR; A4WF38; -.
DR   STRING; 399742.Ent638_3661; -.
DR   EnsemblBacteria; ABP62318; ABP62318; Ent638_3661.
DR   KEGG; ent:Ent638_3661; -.
DR   eggNOG; COG0329; Bacteria.
DR   HOGENOM; CLU_049343_6_0_6; -.
DR   OMA; LPPMRYK; -.
DR   OrthoDB; 1438588at2; -.
DR   UniPathway; UPA00629; UER00680.
DR   Proteomes; UP000000230; 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_1000066928"
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;  32390 MW;  7CD7EC5192C770DE CRC64;
     MAKQLRGVMA ALLTPFNTQQ ALDKESLRRL VQFNMQQGID GLYVGGSTGE AFVQSLSERE
     QVLEIVAEEA KGKITLIAHV GCVSTAESQQ LAASASRFGF DAVSAVTPFY YPFSFEEHCD
     HYRAIIDSAD GLPMVVYNIP ALSGVKLTLD QINTLVTLPG VGALKQTSGD LFQMEQIRRA
     HPDLVLYNGY DEIFASGLLA GADGGIGSTY NIMGWRYQAI AKAIREGDNA TAQRLQSECN
     KVIDLLIKVG VFRGLKTVLH YMDVVSVPLC RKPFAPVAEP YLPELKALAK QLMVEKA
 
 
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