ID A0A031IKI3_9BACL Unreviewed; 294 AA.
AC A0A031IKI3;
DT 09-JUL-2014, integrated into UniProtKB/TrEMBL.
DT 09-JUL-2014, sequence version 1.
DT 24-JAN-2024, entry version 65.
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 ECO:0000313|EMBL:EZP61521.1};
GN ORFNames=BW42_01192 {ECO:0000313|EMBL:EZP61521.1};
OS Exiguobacterium sp. RIT341.
OC Bacteria; Bacillota; Bacilli; Bacillales;
OC Bacillales Family XII. Incertae Sedis; Exiguobacterium.
OX NCBI_TaxID=1470592 {ECO:0000313|EMBL:EZP61521.1, ECO:0000313|Proteomes:UP000023864};
RN [1] {ECO:0000313|EMBL:EZP61521.1, ECO:0000313|Proteomes:UP000023864}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RIT341 {ECO:0000313|EMBL:EZP61521.1,
RC ECO:0000313|Proteomes:UP000023864};
RA Gan H.Y., Gan H.M., Savka M.A., Hudson A.O.;
RT "Draft Genome Sequences of 13 Willow Endophytes.";
RL Submitted (MAR-2014) 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. {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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EZP61521.1}.
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DR EMBL; JFYW01000001; EZP61521.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A031IKI3; -.
DR PATRIC; fig|1470592.3.peg.1178; -.
DR UniPathway; UPA00342; -.
DR Proteomes; UP000023864; Unassembled WGS sequence.
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; PF13580; SIS_2; 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 54..217
FT /note="SIS"
FT /evidence="ECO:0000259|PROSITE:PS51464"
FT ACT_SITE 82
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
FT ACT_SITE 113
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
SQ SEQUENCE 294 AA; 31203 MW; 6A20626E8C55FAAD CRC64;
MLDQLATERR NERTMHLDDM SVEDVLRVMN AEDQTVATVI QTQIPVIAEV VKHVITSFNA
GGRLIYIGAG TSGRLGILDA AECVPTFGVS PDMVVGLIAG GERALIKAVE GAEDSRTLAV
DDLKALQLEA RDTVIGIAAS GRTPYVIGGL DYAKEVGAVT AAISCNTDAV ISGHARYAIE
VETGPEVLTG STRLKAGTAQ KLVLNMVSTA AMIGVGKVYQ NLMVDVQSTN EKLEIRAKRM
IREATGVDAV TAERVFSEAH GHVKTAIVMI LANVPHAEAV ERLQQANGFV RDAL
//
