Annotations: 6GJ1

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	GPW_gp25	e6gj1D1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: GPW_gp25	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
C	PF06996	Type VI secretion, TssG (T6SS_TssG)	Type VI secretion, TssG	-	Family
D	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

Chains	Accession	Name	Type
A, B	IPR010272	Type VI secretion system TssF	Family
C	IPR010732	Type VI secretion, TssG-like	Family
D	IPR007048	IraD/Gp25-like	Domain
D	IPR017737	Type VI secretion system protein TssE1-like	Family