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MURQ_ALIFM
ID   MURQ_ALIFM              Reviewed;         300 AA.
AC   B5FDJ8;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 1.
DT   25-MAY-2022, entry version 76.
DE   RecName: Full=N-acetylmuramic acid 6-phosphate etherase {ECO:0000255|HAMAP-Rule:MF_00068};
DE            Short=MurNAc-6-P etherase {ECO:0000255|HAMAP-Rule:MF_00068};
DE            EC=4.2.1.126 {ECO:0000255|HAMAP-Rule:MF_00068};
DE   AltName: Full=N-acetylmuramic acid 6-phosphate hydrolase {ECO:0000255|HAMAP-Rule:MF_00068};
DE   AltName: Full=N-acetylmuramic acid 6-phosphate lyase {ECO:0000255|HAMAP-Rule:MF_00068};
GN   Name=murQ {ECO:0000255|HAMAP-Rule:MF_00068}; OrderedLocusNames=VFMJ11_1192;
OS   Aliivibrio fischeri (strain MJ11) (Vibrio fischeri).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Aliivibrio.
OX   NCBI_TaxID=388396;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MJ11;
RA   Mandel M.J., Stabb E.V., Ruby E.G., Ferriera S., Johnson J., Kravitz S.,
RA   Beeson K., Sutton G., Rogers Y.-H., Friedman R., Frazier M., Venter J.C.;
RT   "Complete sequence of Vibrio fischeri strain MJ11.";
RL   Submitted (AUG-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Specifically catalyzes the cleavage of the D-lactyl ether
CC       substituent of MurNAc 6-phosphate, producing GlcNAc 6-phosphate and D-
CC       lactate. Together with AnmK, is also required for the utilization of
CC       anhydro-N-acetylmuramic acid (anhMurNAc) either imported from the
CC       medium or derived from its own cell wall murein, and thus plays a role
CC       in cell wall recycling. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + N-acetyl-D-muramate 6-phosphate = (R)-lactate + N-
CC         acetyl-D-glucosamine 6-phosphate; Xref=Rhea:RHEA:26410,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:16004, ChEBI:CHEBI:57513,
CC         ChEBI:CHEBI:58722; EC=4.2.1.126; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00068};
CC   -!- PATHWAY: Amino-sugar metabolism; 1,6-anhydro-N-acetylmuramate
CC       degradation. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- PATHWAY: Amino-sugar metabolism; N-acetylmuramate degradation.
CC       {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- PATHWAY: Cell wall biogenesis; peptidoglycan recycling.
CC       {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- MISCELLANEOUS: A lyase-type mechanism (elimination/hydration) is
CC       suggested for the cleavage of the lactyl ether bond of MurNAc 6-
CC       phosphate, with the formation of an alpha,beta-unsaturated aldehyde
CC       intermediate with (E)-stereochemistry, followed by the syn addition of
CC       water to give product. {ECO:0000255|HAMAP-Rule:MF_00068}.
CC   -!- SIMILARITY: Belongs to the GCKR-like family. MurNAc-6-P etherase
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00068}.
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DR   EMBL; CP001139; ACH67247.1; -; Genomic_DNA.
DR   RefSeq; WP_012534300.1; NC_011184.1.
DR   AlphaFoldDB; B5FDJ8; -.
DR   SMR; B5FDJ8; -.
DR   EnsemblBacteria; ACH67247; ACH67247; VFMJ11_1192.
DR   KEGG; vfm:VFMJ11_1192; -.
DR   HOGENOM; CLU_049049_1_1_6; -.
DR   OMA; CPPTFCT; -.
DR   UniPathway; UPA00342; -.
DR   UniPathway; UPA00343; -.
DR   UniPathway; UPA00544; -.
DR   Proteomes; UP000001857; Chromosome I.
DR   GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR   GO; GO:0016835; F:carbon-oxygen lyase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0097175; P:1,6-anhydro-N-acetyl-beta-muramic acid catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0046348; P:amino sugar catabolic process; IEA:InterPro.
DR   GO; GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0097173; P:N-acetylmuramic acid catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0009254; P:peptidoglycan turnover; IEA:UniProtKB-UniRule.
DR   CDD; cd05007; SIS_Etherase; 1.
DR   HAMAP; MF_00068; MurQ; 1.
DR   InterPro; IPR005488; Etherase_MurQ.
DR   InterPro; IPR005486; Glucokinase_regulatory_CS.
DR   InterPro; IPR040190; MURQ/GCKR.
DR   InterPro; IPR001347; SIS_dom.
DR   InterPro; IPR046348; SIS_dom_sf.
DR   PANTHER; PTHR10088; PTHR10088; 1.
DR   PANTHER; PTHR10088:SF5; PTHR10088:SF5; 1.
DR   Pfam; PF13580; SIS_2; 1.
DR   SUPFAM; SSF53697; SSF53697; 1.
DR   TIGRFAMs; TIGR00274; TIGR00274; 1.
DR   PROSITE; PS01272; GCKR; 1.
DR   PROSITE; PS51464; SIS; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Lyase.
FT   CHAIN           1..300
FT                   /note="N-acetylmuramic acid 6-phosphate etherase"
FT                   /id="PRO_1000092322"
FT   DOMAIN          57..220
FT                   /note="SIS"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT   ACT_SITE        85
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT   ACT_SITE        116
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
SQ   SEQUENCE   300 AA;  31323 MW;  542A72E39B69199C CRC64;
     MKIDLTALVT ESRNKASENI DVLSTVEMLT VINQEDQKVA LAVEAILPQI ADVVDAIAVA
     FQSGGRLIYT GAGTSGRLGI LDASECPPTY GSNPDLVVGL IAGGHKAILK AVENAEDNRE
     LGASDLQDLG LNEKDVLVGI AASGRTPYVL GAMEYAKSVG ATVATLSCNP NSPMTELADI
     NMTPVVGPEV VTGSSRMKAG TAQKLVLNML TTGAMIRTGK VFGNLMVDVE ATNAKLVQRQ
     KNIVIEATGC SEVEASEALS QCDNHCKTAI LMVLSGLDAQ SAKAKLAQHN GFIRNALSDQ
 
 
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