Annotations: 4LZH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	YkuD	e4lzhA2	A: beta complex topology	X: L,D-transpeptidase catalytic domain-like (From Topology)	H: L,D-transpeptidase catalytic domain-like (From Topology)	T: L,D-transpeptidase catalytic domain-like	F: YkuD	ECOD (1.6)
A	LysM_1	e4lzhA1	A: alpha arrays	X: HTH	H: LysM domain (From Topology)	T: LysM domain	F: LysM_1	ECOD (1.6)
A	PRK10190	e4lzhA3	A: a+b two layers	X: L,D-transpeptidase C-terminal domain (From Topology)	H: L,D-transpeptidase C-terminal domain (From Topology)	T: L,D-transpeptidase C-terminal domain	F: PRK10190	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF17969	L,D-transpeptidase C-terminal domain (Ldt_C)	L,D-transpeptidase C-terminal domain	This is the C-terminal domain found in d-transpeptidases (Ldt) homologues from E.coli. Three of these enzymes (YbiS, ErfK, YcfS) have been shown to cross-link Braun's lipoprotein to the peptidoglycan (PG), while the other two (YnhG, YcbB) form direct ...	This is the C-terminal domain found in d-transpeptidases (Ldt) homologues from E.coli. Three of these enzymes (YbiS, ErfK, YcfS) have been shown to cross-link Braun's lipoprotein to the peptidoglycan (PG), while the other two (YnhG, YcbB) form direct meso-diaminopimelate (DAP-DAP, or 3-3) cross-links within the PG. Family members include erfK (ldtA), ybiS (ldtB), ycfS (ldtC), and ynhG (ldtE).	Domain
A	PF03734	L,D-transpeptidase catalytic domain (YkuD)	L,D-transpeptidase catalytic domain	This family of proteins are found in a range of bacteria. It has been shown that this domain can act as an L,D-transpeptidase that gives rise to an alternative pathway for peptidoglycan cross-linking [1]. This gives bacteria resistance to beta-lacta ...	This family of proteins are found in a range of bacteria. It has been shown that this domain can act as an L,D-transpeptidase that gives rise to an alternative pathway for peptidoglycan cross-linking [1]. This gives bacteria resistance to beta-lactam antibiotics that inhibit PBPs which usually carry out the cross-linking reaction. The conserved region contains a conserved histidine and cysteine, with the cysteine thought to be an active site residue. Several members of this family contain peptidoglycan binding domains. The molecular structure of YkuD protein shows this domain has a novel tertiary fold consisting of a beta-sandwich with two mixed sheets, one containing five strands and the other, six strands. The two beta-sheets form a cradle capped by an alpha-helix. This family was formerly called the ErfK/YbiS/YcfS/YnhG family, but is now named after the first protein of known structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	L,D-transpeptidase	glycosyltransferase activity transferase activity catalytic activity peptidase activity catalytic activity, acting on a protein hydrolase activity exopeptidase activity carboxypeptidase activity	cellular biosynthetic process cell wall organization or biogenesis glycosaminoglycan metabolic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process cellular component biogenesis organic substance metabolic process peptidoglycan metabolic process organic substance biosynthetic process glycosaminoglycan biosynthetic process cellular component organization or biogenesis carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis organonitrogen compound metabolic process cellular biosynthetic process cell wall organization or biogenesis glycosaminoglycan metabolic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process cellular component biogenesis organic substance metabolic process peptidoglycan metabolic process organic substance biosynthetic process glycosaminoglycan biosynthetic process cellular component organization or biogenesis carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis organonitrogen compound metabolic process cellular metabolic process macromolecule biosynthetic process peptidoglycan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process aminoglycan metabolic process aminoglycan biosynthetic process cellular process metabolic process macromolecule metabolic process	periplasmic space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041597	L,D-transpeptidase C-terminal domain	Domain
A	IPR005490	L,D-transpeptidase catalytic domain	Domain
A	IPR038063	L,D-transpeptidase catalytic domain-like	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.