ID   MURB_LACLA              Reviewed;         299 AA.
AC   Q9CGD5;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   27-APR-2001, sequence version 1.
DT   25-MAY-2022, entry version 126.
DE   RecName: Full=UDP-N-acetylenolpyruvoylglucosamine reductase;
DE            EC=1.3.1.98;
DE   AltName: Full=UDP-N-acetylmuramate dehydrogenase;
GN   Name=murB; OrderedLocusNames=LL1162; ORFNames=L173881;
OS   Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Lactococcus.
OX   NCBI_TaxID=272623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IL1403;
RX   PubMed=11337471; DOI=10.1101/gr.gr-1697r;
RA   Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J.,
RA   Ehrlich S.D., Sorokin A.;
RT   "The complete genome sequence of the lactic acid bacterium Lactococcus
RT   lactis ssp. lactis IL1403.";
RL   Genome Res. 11:731-753(2001).
CC   -!- FUNCTION: Cell wall formation. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=NADP(+) + UDP-N-acetyl-alpha-D-muramate = H(+) + NADPH + UDP-
CC         N-acetyl-3-O-(1-carboxyvinyl)-alpha-D-glucosamine;
CC         Xref=Rhea:RHEA:12248, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783,
CC         ChEBI:CHEBI:58349, ChEBI:CHEBI:68483, ChEBI:CHEBI:70757; EC=1.3.1.98;
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC   -!- PATHWAY: Cell wall biogenesis; peptidoglycan biosynthesis.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the MurB family. {ECO:0000305}.
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DR   EMBL; AE005176; AAK05260.1; -; Genomic_DNA.
DR   PIR; B86770; B86770.
DR   RefSeq; NP_267318.1; NC_002662.1.
DR   RefSeq; WP_010905790.1; NC_002662.1.
DR   AlphaFoldDB; Q9CGD5; -.
DR   SMR; Q9CGD5; -.
DR   STRING; 272623.L173881; -.
DR   PaxDb; Q9CGD5; -.
DR   EnsemblBacteria; AAK05260; AAK05260; L173881.
DR   KEGG; lla:L173881; -.
DR   PATRIC; fig|272623.7.peg.1242; -.
DR   eggNOG; COG0812; Bacteria.
DR   HOGENOM; CLU_035304_1_1_9; -.
DR   OMA; MQNIGAY; -.
DR   UniPathway; UPA00219; -.
DR   Proteomes; UP000002196; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0071949; F:FAD binding; IEA:InterPro.
DR   GO; GO:0008762; F:UDP-N-acetylmuramate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0007049; P:cell cycle; IEA:UniProtKB-KW.
DR   GO; GO:0051301; P:cell division; IEA:UniProtKB-KW.
DR   GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR   GO; GO:0009252; P:peptidoglycan biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0008360; P:regulation of cell shape; IEA:UniProtKB-KW.
DR   Gene3D; 3.30.43.10; -; 1.
DR   Gene3D; 3.30.465.10; -; 1.
DR   Gene3D; 3.90.78.10; -; 1.
DR   HAMAP; MF_00037; MurB; 1.
DR   InterPro; IPR016166; FAD-bd_PCMH.
DR   InterPro; IPR036318; FAD-bd_PCMH-like_sf.
DR   InterPro; IPR016167; FAD-bd_PCMH_sub1.
DR   InterPro; IPR016169; FAD-bd_PCMH_sub2.
DR   InterPro; IPR003170; MurB.
DR   InterPro; IPR011601; MurB_C.
DR   InterPro; IPR036635; MurB_C_sf.
DR   InterPro; IPR006094; Oxid_FAD_bind_N.
DR   PANTHER; PTHR21071; PTHR21071; 1.
DR   Pfam; PF01565; FAD_binding_4; 1.
DR   Pfam; PF02873; MurB_C; 1.
DR   SUPFAM; SSF56176; SSF56176; 1.
DR   SUPFAM; SSF56194; SSF56194; 1.
DR   TIGRFAMs; TIGR00179; murB; 1.
DR   PROSITE; PS51387; FAD_PCMH; 1.
PE   3: Inferred from homology;
KW   Cell cycle; Cell division; Cell shape; Cell wall biogenesis/degradation;
KW   Cytoplasm; FAD; Flavoprotein; NADP; Oxidoreductase;
KW   Peptidoglycan synthesis; Reference proteome.
FT   CHAIN           1..299
FT                   /note="UDP-N-acetylenolpyruvoylglucosamine reductase"
FT                   /id="PRO_0000179220"
FT   DOMAIN          28..193
FT                   /note="FAD-binding PCMH-type"
FT   ACT_SITE        172
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        222
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        292
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   299 AA;  32098 MW;  8CE430FD281DB4FA CRC64;
     MIKETDLENI PDLLVKFNEP LSKYTYTKVG GPADILAFPA TIEALTELLV KAKSTDTAVT
     VLGNASNLIV RDGGIRGLVI LLEKLESVKV AGYTIEAQAG AKLKEVTQVA QANSLTGFEF
     ACGIPGSIGG AVFMNAGAYG GEISQVLVSC KVMDTDGNIS VLTASEMQFG YRHSVIRDKN
     LVVLSAKFEL QAGDPTQIQN EMNRLNFLRE SKQPLEYPSC GSVFKRPVGH FAGQLIQEAN
     LQGVRIGGVE VSKKHAGFMV NVANGNATDY EKLIAHVIDK VKENSGVTLE PEVRIIGEK