ID W0ETA6_9BACT Unreviewed; 275 AA.
AC W0ETA6;
DT 19-MAR-2014, integrated into UniProtKB/TrEMBL.
DT 19-MAR-2014, sequence version 1.
DT 24-JAN-2024, entry version 43.
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 ORFNames=NIASO_00315 {ECO:0000313|EMBL:AHF14060.1};
OS Niabella soli DSM 19437.
OC Bacteria; Bacteroidota; Chitinophagia; Chitinophagales; Chitinophagaceae;
OC Niabella.
OX NCBI_TaxID=929713 {ECO:0000313|EMBL:AHF14060.1, ECO:0000313|Proteomes:UP000003586};
RN [1] {ECO:0000313|EMBL:AHF14060.1, ECO:0000313|Proteomes:UP000003586}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19437 {ECO:0000313|Proteomes:UP000003586};
RG DOE Joint Genome Institute;
RA Eisen J., Huntemann M., Han J., Chen A., Kyrpides N., Mavromatis K.,
RA Markowitz V., Palaniappan K., Ivanova N., Schaumberg A., Pati A.,
RA Liolios K., Nordberg H.P., Cantor M.N., Hua S.X., Woyke T.;
RL Submitted (DEC-2013) 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}.
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DR EMBL; CP007035; AHF14060.1; -; Genomic_DNA.
DR RefSeq; WP_008582316.1; NZ_CP007035.1.
DR AlphaFoldDB; W0ETA6; -.
DR STRING; 929713.NIASO_00315; -.
DR KEGG; nso:NIASO_00315; -.
DR eggNOG; COG2103; Bacteria.
DR HOGENOM; CLU_049049_1_1_10; -.
DR OrthoDB; 9813395at2; -.
DR UniPathway; UPA00342; -.
DR Proteomes; UP000003586; 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 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};
KW Reference proteome {ECO:0000313|Proteomes:UP000003586}.
FT DOMAIN 53..216
FT /note="SIS"
FT /evidence="ECO:0000259|PROSITE:PS51464"
FT ACT_SITE 81
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
FT ACT_SITE 112
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00068"
SQ SEQUENCE 275 AA; 29861 MW; 719CFD69E38A2458 CRC64;
MTREKITEQS SNYDHLEKMS VLELLSSMNR EDQTVPLAVE KVIPAIEKLI EAIVEHMVVG
GRLFYIGAGT SGRLGILDAS EIPPTYGLPA GVVIGVIAGG SKAITTPVEN AEDDDLQGWK
DLETYNINEQ DVVVGVAASG STPYVIGALR ECRKRGIVTG SITSNPNALV SEVSDHPIEV
IVGPEFVTGS TRMKSGTAQK LVLNMISTTV MIQLGRVEGN RMVNMQLTNS KLIDRGTKMV
MEQTGLKDYE QAKQLLIRNK SVKNAVIEYE NTQQS
//
