AC MF_02080; DC Protein; auto TR HAMAP; MF_02080; -; 1; level=0 XX Names: FtsI_transpept XX case not ID FTSI DE RecName: Full=Peptidoglycan D,D-transpeptidase FtsI; DE EC=3.4.16.4; DE AltName: Full=Penicillin-binding protein 3; DE Short=PBP-3; GN Name=ftsI; else case ID PBP2 DE RecName: Full=Probable peptidoglycan D,D-transpeptidase PenA; DE EC=3.4.16.4; DE AltName: Full=Penicillin-binding protein 2; DE Short=PBP-2; GN Name=penA; end case XX CC -!- FUNCTION: Catalyzes cross-linking of the peptidoglycan cell wall at the CC division septum. CC -!- CATALYTIC ACTIVITY: CC Reaction=Preferential cleavage: (Ac)2-L-Lys-D-Ala-|-D-Ala. Also CC transpeptidation of peptidyl-alanyl moieties that are N-acyl CC substituents of D-alanine.; EC=3.4.16.4; CC -!- PATHWAY: Cell wall biogenesis; peptidoglycan biosynthesis. case CC -!- SUBCELLULAR LOCATION: Cell inner membrane; Single-pass membrane CC protein. end case CC -!- SIMILARITY: Belongs to the transpeptidase family. FtsI subfamily. XX DR Pfam; PF03717; PBP_dimer; 1; trigger=no DR Pfam; PF00905; Transpeptidase; 1; trigger=no DR General; Transmembrane; -; 1; trigger=yes XX KW Carboxypeptidase KW Cell cycle KW Cell division KW Cell inner membrane KW Cell membrane KW Cell shape KW Cell wall biogenesis/degradation KW Hydrolase KW Membrane KW Peptidoglycan synthesis KW Protease KW Septation KW Transmembrane KW Transmembrane helix XX GO GO:0009002; F:serine-type D-Ala-D-Ala carboxypeptidase activity GO GO:0043093; P:FtsZ-dependent cytokinesis GO GO:0009252; P:peptidoglycan biosynthetic process GO GO:0005886; C:plasma membrane XX FT From: FTSI_ECOLI (P0AD68) FT ACT_SITE 307 FT /note="Acyl-ester intermediate" FT Condition: S XX Size: 520-690; Related: None; Template: P0AD68; P08149; Scope: Bacteria; Pseudomonadota Fusion: Nter: None Cter: None Duplicate: in PSEAE Plasmid: None Comments: Second copy in Pseudomonas aeruginosa (penicillin-binding protein 3 homolog), which has probably the same catalytic activity. Does not match FTSI_CAUVN, which seems divergent. XX # Revision 1.8 2023/01/26 //