Annotations: 6OD1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PBP_GOBP	e6od1B1	A: a/b three-layered sandwiches	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: PBP_GOBP	ECOD (v294.1)
A	Response_reg	e6od1A1	A: a/b three-layered sandwiches	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: Response_reg	ECOD (v294.1)
A	PBP_GOBP	e6od1A2	A: a/b three-layered sandwiches	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: PBP_GOBP	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF04965	Baseplate wedge protein gp25 (GPW_gp25)	Baseplate wedge protein gp25	This family represents T4 phage gp25 protein and gp25-like proteins, found in several systems, including contractile tail bacteriophages, the type VI secretion system (T6SS) and R-type pyocins, which constitute a multiprotein tubular apparatus to att ...	This family represents T4 phage gp25 protein and gp25-like proteins, found in several systems, including contractile tail bacteriophages, the type VI secretion system (T6SS) and R-type pyocins, which constitute a multiprotein tubular apparatus to attach to and penetrate host cell membranes. Gp25 is a component of the conserved wedge in the inner part of the baseplate and serves as a nucleus for sheath polymerisation, playing a critical role in sheath assembly and contraction [1,2]. The EPR motif (Glu-Pro-Arg, residues 85-87 of gp25) is conserved across all members of the family including orthologues from the RpoS-mediated general stress response system (called IraD) [3,4]. This motif interacts with the 'core bundle' composed of orthologues of T4 gp6 and gp7 proteins in contractile injection systems.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Anti-adapter protein IraD	transcription regulator activity anti-sigma factor antagonist activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process catabolic process regulation of cellular process negative regulation of biological process macromolecule catabolic process negative regulation of protein catabolic process regulation of primary metabolic process negative regulation of cellular process protein metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process catabolic process regulation of cellular process negative regulation of biological process macromolecule catabolic process negative regulation of protein catabolic process regulation of primary metabolic process negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process negative regulation of catabolic process regulation of biological process regulation of protein metabolic process negative regulation of metabolic process biological regulation primary metabolic process protein catabolic process regulation of macromolecule metabolic process regulation of catabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein catabolic process response to oxidative stress cellular response to chemical stimulus response to chemical cellular response to oxidative stress cellular response to chemical stress	cellular anatomical structure intracellular anatomical structure cytoplasm
A	Regulator of RpoS	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR007048	IraD/Gp25-like	Domain
B	IPR023776	Anti-adapter protein, IraD	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.