Annotations: 4BS9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF21084	e4bs9A1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF21084	ECOD (1.6)
A	F_UNCLASSIFIED	e4bs9A3	A: a+b two layers	X: dsRBD-like	H: Heterocyclase TruD C-terminal domain (From Topology)	T: Heterocyclase TruD C-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF02624	e4bs9A4	A: a+b two layers	X: dsRBD-like	H: Heterocyclase TruD C-terminal domain (From Topology)	T: Heterocyclase TruD C-terminal domain	F: PF02624	ECOD (1.6)
A	F_UNCLASSIFIED	e4bs9A2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Activating enzymes of the ubiquitin-like proteins	F: F_UNCLASSIFIED	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.930.60	Alpha Beta	Alpha-Beta Complex	Outer Surface Protein A	domain 3	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.30.1330.230	Alpha Beta	2-Layer Sandwich	60s Ribosomal Protein L30	Chain: A	CATH (4.3.0)
A	3.30.40.250	Alpha Beta	2-Layer Sandwich	Herpes Virus-1		CATH (4.3.0)
A	3.30.160.660	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF21084	Winged Helix-turn-helix domain (DUF4423_like)	Winged Helix-turn-helix domain	This domain is found at the N-terminus of the TruD protein [1] a protein involved in cyanobactin heterocyclisation. It adopts a winged helix-turn-helix structure. It is also found in the related LynD protein [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TRUD	cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR049274	LynD/TruD, winged helix-turn-helix-like domain	Domain
A	IPR003776	YcaO-like domain	Domain
A	IPR022291	Bacteriocin biosynthesis, cyclodehydratase domain	Domain
A	IPR027624	Thiazole/oxazole-forming peptide maturase, SagD family component	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.