ID A0RA81_BACAH Unreviewed; 304 AA.
AC A0RA81;
DT 09-JAN-2007, integrated into UniProtKB/TrEMBL.
DT 09-JAN-2007, sequence version 1.
DT 27-MAR-2024, entry version 110.
DE RecName: Full=N-acetylmuramic acid 6-phosphate etherase {ECO:0000256|HAMAP-Rule:MF_00068};
DE Short=MurNAc-6-P etherase {ECO:0000256|HAMAP-Rule:MF_00068};
DE EC=4.2.1.126 {ECO:0000256|HAMAP-Rule:MF_00068};
DE AltName: Full=N-acetylmuramic acid 6-phosphate hydrolase {ECO:0000256|HAMAP-Rule:MF_00068};
DE AltName: Full=N-acetylmuramic acid 6-phosphate lyase {ECO:0000256|HAMAP-Rule:MF_00068};
GN Name=murQ {ECO:0000256|HAMAP-Rule:MF_00068};
GN OrderedLocusNames=BALH_0745 {ECO:0000313|EMBL:ABK84124.1};
OS Bacillus thuringiensis (strain Al Hakam).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=412694 {ECO:0000313|EMBL:ABK84124.1, ECO:0000313|Proteomes:UP000000761};
RN [1] {ECO:0000313|EMBL:ABK84124.1, ECO:0000313|Proteomes:UP000000761}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Al Hakam {ECO:0000313|EMBL:ABK84124.1,
RC ECO:0000313|Proteomes:UP000000761};
RX PubMed=17337577; DOI=10.1128/JB.00241-07;
RA Challacombe J.F., Altherr M.R., Xie G., Bhotika S.S., Brown N., Bruce D.,
RA Campbell C.S., Campbell M.L., Chen J., Chertkov O., Cleland C.,
RA Dimitrijevic M., Doggett N.A., Fawcett J.J., Glavina T., Goodwin L.A.,
RA Green L.D., Han C.S., Hill K.K., Hitchcock P., Jackson P.J., Keim P.,
RA Kewalramani A.R., Longmire J., Lucas S., Malfatti S., Martinez D.,
RA McMurry K., Meincke L.J., Misra M., Moseman B.L., Mundt M., Munk A.C.,
RA Okinaka R.T., Parson-Quintana B., Reilly L.P., Richardson P.,
RA Robinson D.L., Saunders E., Tapia R., Tesmer J.G., Thayer N.,
RA Thompson L.S., Tice H., Ticknor L.O., Wills P.L., Gilna P., Brettin T.S.;
RT "The complete genome sequence of Bacillus thuringiensis Al Hakam.";
RL J. Bacteriol. 189:3680-3681(2007).
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. {ECO:0000256|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:0000256|HAMAP-
CC Rule:MF_00068};
CC -!- PATHWAY: Amino-sugar metabolism; N-acetylmuramate degradation.
CC {ECO:0000256|HAMAP-Rule:MF_00068}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|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:0000256|HAMAP-Rule:MF_00068}.
CC -!- SIMILARITY: Belongs to the GCKR-like family. MurNAc-6-P etherase
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_00068}.
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DR EMBL; CP000485; ABK84124.1; -; Genomic_DNA.
DR AlphaFoldDB; A0RA81; -.
DR KEGG; btl:BALH_0745; -.
DR HOGENOM; CLU_049049_1_1_9; -.
DR UniPathway; UPA00342; -.
DR Proteomes; UP000000761; 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: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 CDD; cd05007; SIS_Etherase; 1.
DR Gene3D; 1.10.8.1080; -; 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 NCBIfam; TIGR00274; N-acetylmuramic acid 6-phosphate etherase; 1.
DR PANTHER; PTHR10088; GLUCOKINASE REGULATORY PROTEIN; 1.
DR PANTHER; PTHR10088:SF4; GLUCOKINASE REGULATORY PROTEIN; 1.
DR Pfam; PF01380; SIS; 1.
DR SUPFAM; SSF53697; SIS domain; 1.
DR PROSITE; PS01272; GCKR; 1.
DR PROSITE; PS51464; SIS; 1.
PE 3: Inferred from homology;
KW Carbohydrate metabolism {ECO:0000256|ARBA:ARBA00023277, ECO:0000256|HAMAP-
KW Rule:MF_00068};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00068}.
FT DOMAIN 64..227
FT /note="SIS"
FT /evidence="ECO:0000259|PROSITE:PS51464"
FT ACT_SITE 92
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
FT ACT_SITE 123
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
SQ SEQUENCE 304 AA; 33041 MW; 305DEDDA0CB27D42 CRC64;
MKLNFKAGGN MLENLSTEHR NEKTMNLDEM NIKEVLQSMN EEDRTVALAV EKEIEHIEKV
VRVVIQSFEE EGRLIYIGAG TSGRLGILDA VECPPTFGTD DKMVQGFIAG GLKAFTKAVE
GAEDREELAE EDLKSIGLNE KDTVIGIAAS GRTPYVIGGL KYANSVGAST ASISCNKNAE
ISKYAKLNVE VETGAEILTG STRLKAGTAQ KLVLNMISTA SMIGVGKVYK NLMVDVQSTN
EKLVERSKRI IVEATGVSYE VAAEHYEKAE RNVKAAIVMV LLQCEYGEAL EKLKEAKGFV
KKAL
//
