Annotations: 1S4K

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1s4ka1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	YdiL-like	Putative cytoplasmic protein YdiL	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)
A	d1s4ka2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)
B	d1s4kb1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	YdiL-like	Putative cytoplasmic protein YdiL	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)
B	d1s4kb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	YdiL-like	8026767	4002426	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	lambda C1 repressor DNA-binding domain-like	8039146	3000119	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8039146	3000119	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF08965	e1s4kA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF08965	ECOD (1.6)
B	PF08965	e1s4kB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: PF08965	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.3100.10	Mainly Alpha	Orthogonal Bundle	Putative cytoplasmic protein	Putative cytoplasmic protein	CATH (4.3.0)
B	1.10.3100.10	Mainly Alpha	Orthogonal Bundle	Putative cytoplasmic protein	Putative cytoplasmic protein	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08965	Domain of unknown function (DUF1870) (DUF1870)	Domain of unknown function (DUF1870)	This domain is found in a set of hypothetical bacterial proteins. It contains a helix-turn-helix domain so may be a DNA-binding protein.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	putative cytoplasmic protein ydil	DNA binding binding organic cyclic compound binding nucleic acid binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR027910	YdiL domain superfamily	Homologous Superfamily
A, B	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR015060	Protein of unknown function DUF1870	Family

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.