Detail Information for IndEnz0002009596
IED ID IndEnz0002009596
Enzyme Type ID protease009596
Protein Name Murein DD-endopeptidase MepS/Murein LD-carboxypeptidase
EC 3.4.-.-
EC 3.4.17.13
Lipoprotein Spr
Murein hydrolase MepS
Gene Name mepS spr Z3434 ECs3067
Organism Escherichia coli O157:H7
Taxonomic Lineage cellular organisms Bacteria Proteobacteria Gammaproteobacteria Enterobacterales Enterobacteriaceae Escherichia Escherichia coli Escherichia coli O157:H7
Enzyme Sequence MVKSQPILRYILRGIPAIAVAVLLSACSANNTAKNMHPETRAVGSETSSLQASQDEFENLVRNVDVKSRIMDQYADWKGVRYRLGGSTKKGIDCSGFVQRTFREQFGLELPRSTYEQQEMGKSVSRSNLRTGDLVLFRAGSTGRHVGIYIGNNQFVHASTSSGVIISSMNEPYWKKRYNEARRVLSRS
Enzyme Length 188
Uniprot Accession Number P0AFV6
Absorption
Active Site ACT_SITE 94; /note=Nucleophile; /evidence=ECO:0000255|PROSITE-ProRule:PRU01284; ACT_SITE 145; /note=Proton acceptor; /evidence=ECO:0000255|PROSITE-ProRule:PRU01284; ACT_SITE 157; /evidence=ECO:0000255|PROSITE-ProRule:PRU01284
Activity Regulation
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=H2O + N-acetyl-D-glucosaminyl-N-acetylmuramoyl-L-alanyl-D-glutamyl-6-carboxy-L-lysyl-D-alanine = D-alanine + N-acetyl-D-glucosaminyl-N-acetylmuramoyl-L-alanyl-D-glutamyl-6-carboxy-L-lysyl; Xref=Rhea:RHEA:48688, ChEBI:CHEBI:15377, ChEBI:CHEBI:57416, ChEBI:CHEBI:90762, ChEBI:CHEBI:90763; EC=3.4.17.13;
DNA Binding
EC Number 3.4.-.-; 3.4.17.13
Enzyme Function FUNCTION: A murein DD-endopeptidase with specificity for D-Ala-meso-diaminopimelic acid (mDAP) cross-links. Its role is probably to cleave D-Ala-mDAP cross-links to allow insertion of new glycans and thus cell wall expansion. Functionally redundant with MepM and MepH. Also has weak LD-carboxypeptidase activity on L-mDAP-D-Ala peptide bonds (By similarity). {ECO:0000250}.
Temperature Dependency
PH Dependency
Pathway PATHWAY: Cell wall biogenesis; cell wall polysaccharide biosynthesis.
nucleotide Binding
Features Active site (3); Chain (1); Domain (1); Lipidation (2); Signal peptide (1)
Keywords Cell outer membrane;Hydrolase;Lipoprotein;Membrane;Palmitate;Protease;Reference proteome;Signal;Thiol protease
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Cell outer membrane {ECO:0000305}; Lipid-anchor {ECO:0000255|PROSITE-ProRule:PRU00303}.
Modified Residue
Post Translational Modification
Signal Peptide SIGNAL 1..26; /evidence=ECO:0000255|PROSITE-ProRule:PRU00303
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 21,040
Kinetics
Metal Binding
Rhea ID RHEA:48688
Cross Reference Brenda