MURQ_STRCO
ID MURQ_STRCO Reviewed; 311 AA.
AC Q9KXT4;
DT 19-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 25-MAY-2022, entry version 110.
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=SCO4307;
GN ORFNames=SCD95A.40c;
OS Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145).
OC Bacteria; Actinobacteria; Streptomycetales; Streptomycetaceae;
OC Streptomyces; Streptomyces albidoflavus group.
OX NCBI_TaxID=100226;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-471 / A3(2) / M145;
RX PubMed=12000953; DOI=10.1038/417141a;
RA Bentley S.D., Chater K.F., Cerdeno-Tarraga A.-M., Challis G.L.,
RA Thomson N.R., James K.D., Harris D.E., Quail M.A., Kieser H., Harper D.,
RA Bateman A., Brown S., Chandra G., Chen C.W., Collins M., Cronin A.,
RA Fraser A., Goble A., Hidalgo J., Hornsby T., Howarth S., Huang C.-H.,
RA Kieser T., Larke L., Murphy L.D., Oliver K., O'Neil S., Rabbinowitsch E.,
RA Rajandream M.A., Rutherford K.M., Rutter S., Seeger K., Saunders D.,
RA Sharp S., Squares R., Squares S., Taylor K., Warren T., Wietzorrek A.,
RA Woodward J.R., Barrell B.G., Parkhill J., Hopwood D.A.;
RT "Complete genome sequence of the model actinomycete Streptomyces coelicolor
RT A3(2).";
RL Nature 417:141-147(2002).
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: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; N-acetylmuramate degradation.
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; AL939119; CAB93067.1; -; Genomic_DNA.
DR RefSeq; NP_628479.1; NC_003888.3.
DR RefSeq; WP_011029570.1; NZ_VNID01000026.1.
DR AlphaFoldDB; Q9KXT4; -.
DR SMR; Q9KXT4; -.
DR STRING; 100226.SCO4307; -.
DR GeneID; 1099747; -.
DR KEGG; sco:SCO4307; -.
DR PATRIC; fig|100226.15.peg.4375; -.
DR eggNOG; COG2103; Bacteria.
DR HOGENOM; CLU_049049_1_1_11; -.
DR InParanoid; Q9KXT4; -.
DR OMA; CPPTFCT; -.
DR PhylomeDB; Q9KXT4; -.
DR UniPathway; UPA00342; -.
DR Proteomes; UP000001973; Chromosome.
DR GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR GO; GO:0016835; F:carbon-oxygen lyase activity; IBA:GO_Central.
DR GO; GO:0016803; F:ether hydrolase activity; IBA:GO_Central.
DR GO; GO:0046348; P:amino sugar catabolic process; IBA:GO_Central.
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; IBA:GO_Central.
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; PF01380; SIS; 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..311
FT /note="N-acetylmuramic acid 6-phosphate etherase"
FT /id="PRO_0000249667"
FT DOMAIN 66..229
FT /note="SIS"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT ACT_SITE 94
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT ACT_SITE 125
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
SQ SEQUENCE 311 AA; 31864 MW; B71E1DA9F96DBFC8 CRC64;
MTSTPHHPDL RSQLETLTTE AFRPELAEID QLPTLDIARL MNGEDATVPA AVAERLPEIA
AAIDAVAVRM ARGGRLIYAG AGTAGRLGVL DASECPPTFN TGPGQVVGLI AGGPDAMVTS
IEGAEDSPEL ARADLDALAL TADDTVVGVS ASGRTPYAVG AVEYARSLGA LTVGLACNRD
SALAAAAEHG IEVVTGPELL TGSTRLKAGT AQKLVLNMLS TITMIRLGKT YGNLMVDVRA
SNEKLRARSR RIVALATGAA DDDIERALTA TDGEVKDAIL VLLADVDGPT AARLLAESGG
HLRAAMAAAL G
