MURQ_SYNSC
ID MURQ_SYNSC Reviewed; 316 AA.
AC Q3AJT5;
DT 19-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT 22-NOV-2005, sequence version 1.
DT 25-MAY-2022, entry version 97.
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};
GN OrderedLocusNames=Syncc9605_1393;
OS Synechococcus sp. (strain CC9605).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC unclassified Synechococcus.
OX NCBI_TaxID=110662;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CC9605;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Schmutz J., Martinez M., Larimer F.,
RA Land M., Kyrpides N., Ivanova N., Richardson P.;
RT "Complete sequence of Synechococcus sp. CC9605.";
RL Submitted (JUL-2005) 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: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; CP000110; ABB35147.1; -; Genomic_DNA.
DR RefSeq; WP_011364364.1; NC_007516.1.
DR AlphaFoldDB; Q3AJT5; -.
DR SMR; Q3AJT5; -.
DR STRING; 110662.Syncc9605_1393; -.
DR EnsemblBacteria; ABB35147; ABB35147; Syncc9605_1393.
DR KEGG; syd:Syncc9605_1393; -.
DR eggNOG; COG2103; Bacteria.
DR HOGENOM; CLU_049049_1_1_3; -.
DR OMA; CPPTFCT; -.
DR OrthoDB; 1100044at2; -.
DR UniPathway; UPA00342; -.
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 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.
FT CHAIN 1..316
FT /note="N-acetylmuramic acid 6-phosphate etherase"
FT /id="PRO_0000249671"
FT DOMAIN 66..229
FT /note="SIS"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00068"
FT REGION 1..25
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
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 316 AA; 32929 MW; E5CCD6E137251A32 CRC64;
MAVFDPDLQP SSDRGHLLTE QSNQRSSHLD QLDTLALLEL FADEDRRPQE AVAAVAPALA
QAVDAVANRL RAGGRLFYLG AGTSGRLGVL DAAECPPTFC SDPQQVQGVL AGGSAALLRS
SEGLEDIEAA GRADLEERGF STKDCLVGIA AGGTTPYVRG GLAFAKSIGA LAIALACVPT
EQAPLPCDID IRLLTGPELL TGSTRMKAGT ATKLALNTLS TAVMVKLGKV YGNRMVDVAA
SNSKLVDRSL RILRDLAGVE RERGLTLLEE AGGSVKLALL MAAAGLSVDQ AKAHLQQYDQ
QLRPALAAYG AQLAEA
