ID   MURB_BUCAI              Reviewed;         356 AA.
AC   P57153;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   25-MAY-2022, entry version 121.
DE   RecName: Full=UDP-N-acetylenolpyruvoylglucosamine reductase;
DE            EC=1.3.1.98;
DE   AltName: Full=UDP-N-acetylmuramate dehydrogenase;
GN   Name=murB; OrderedLocusNames=BU045;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
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; BA000003; BAB12768.1; -; Genomic_DNA.
DR   RefSeq; NP_239882.1; NC_002528.1.
DR   RefSeq; WP_010895915.1; NC_002528.1.
DR   AlphaFoldDB; P57153; -.
DR   SMR; P57153; -.
DR   STRING; 107806.10038733; -.
DR   EnsemblBacteria; BAB12768; BAB12768; BAB12768.
DR   KEGG; buc:BU045; -.
DR   PATRIC; fig|107806.10.peg.54; -.
DR   eggNOG; COG0812; Bacteria.
DR   HOGENOM; CLU_035304_0_0_6; -.
DR   OMA; MQNIGAY; -.
DR   UniPathway; UPA00219; -.
DR   Proteomes; UP000001806; 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..356
FT                   /note="UDP-N-acetylenolpyruvoylglucosamine reductase"
FT                   /id="PRO_0000179187"
FT   DOMAIN          20..190
FT                   /note="FAD-binding PCMH-type"
FT   ACT_SITE        166
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        236
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        331
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   356 AA;  40593 MW;  103486BF1DE25EA7 CRC64;
     MHKKKYFSSQ SLKDLNTFAI DVTAKKIIFV KTIQSLIDIS KICQLSNIPY IILGEGSNVL
     FLENYVGVVI INRIKGIKIV EKKNFWLLHV FSGEKWHNLV KLTLNLGILG LENLALIPGC
     IGSAAIQNIG AYGLEFKDVC QYVDILSLKD NTIKRIYKNS CKFSYRNSIF KDQYKNEHAV
     IRVGIKLSKK WRPILFSSLE NYITPINITA YKIFNIICKI RKKKLPDPKK IGNAGSFFKN
     PLIKKKKAQK LINLYKVPNY PQKNGLVKIS AAWLIENYKF KHLQIGDAAI HKKQKLILIN
     KKNATAQEII KLAKIIHKCI LKKFNILLEP EVDLIGASGK IKASKIFKLN SKLKVI