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MURQ_FRATT
ID   MURQ_FRATT              Reviewed;         294 AA.
AC   Q5NEW3;
DT   19-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 98.
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=FTT_1494c;
OS   Francisella tularensis subsp. tularensis (strain SCHU S4 / Schu 4).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=177416;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SCHU S4 / Schu 4;
RX   PubMed=15640799; DOI=10.1038/ng1499;
RA   Larsson P., Oyston P.C.F., Chain P., Chu M.C., Duffield M., Fuxelius H.-H.,
RA   Garcia E., Haelltorp G., Johansson D., Isherwood K.E., Karp P.D.,
RA   Larsson E., Liu Y., Michell S., Prior J., Prior R., Malfatti S.,
RA   Sjoestedt A., Svensson K., Thompson N., Vergez L., Wagg J.K., Wren B.W.,
RA   Lindler L.E., Andersson S.G.E., Forsman M., Titball R.W.;
RT   "The complete genome sequence of Francisella tularensis, the causative
RT   agent of tularemia.";
RL   Nat. Genet. 37:153-159(2005).
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; AJ749949; CAG46127.1; -; Genomic_DNA.
DR   RefSeq; WP_003022359.1; NZ_CP010290.1.
DR   RefSeq; YP_170429.1; NC_006570.2.
DR   AlphaFoldDB; Q5NEW3; -.
DR   SMR; Q5NEW3; -.
DR   STRING; 177416.FTT_1494c; -.
DR   DNASU; 3192311; -.
DR   EnsemblBacteria; CAG46127; CAG46127; FTT_1494c.
DR   KEGG; ftu:FTT_1494c; -.
DR   eggNOG; COG2103; Bacteria.
DR   OMA; TRNPATM; -.
DR   UniPathway; UPA00342; -.
DR   UniPathway; UPA00343; -.
DR   UniPathway; UPA00544; -.
DR   Proteomes; UP000001174; Chromosome.
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; Reference proteome.
FT   CHAIN           1..294
FT                   /note="N-acetylmuramic acid 6-phosphate etherase"
FT                   /id="PRO_0000249626"
FT   DOMAIN          56..219
FT                   /note="SIS"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT   ACT_SITE        84
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT   ACT_SITE        115
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
SQ   SEQUENCE   294 AA;  31814 MW;  62B7DD620483D4A4 CRC64;
     MNILENINTE KRNPRSLNLD SMSIAEAVSL MIDEEYGVIE ALKEQHRNIT EVILATSYSL
     RNGGRIIYIG AGTSGRLGIL DAVECPPTFS VDYNTIVGLI AGGEKAFIQA QEGAEDDANF
     GKEDLQSINL TAKDIVIGIA ASGRTPYVIG ALEYANSIGA TTVAISCTKQ AKISKYAKYS
     IEAVPGPEVL TGSTRLKAGT TQKLILNMIS TLSMVSVGKV YQNLMVDVKP TNQKLIERSK
     NIVCEATGVD YTTAEKFYLK ANKSVKVAIV MILNNCDYEK ALAILKNNNN FIKS
 
 
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