Annotations: 4XVN

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF21434	e4xvnA2	A: alpha arrays	X: HTH	H: Phage G20C small terminase N-terminal domain (From Topology)	T: Phage G20C small terminase N-terminal domain	F: PF21434	ECOD (1.6)
A	PF22412	e4xvnA1	A: alpha bundles	X: Phage G20C small terminase C-terminal domain (From Topology)	H: Phage G20C small terminase C-terminal domain (From Topology)	T: Phage G20C small terminase C-terminal domain	F: PF22412	ECOD (1.6)
B	PF21434	e4xvnB1	A: alpha arrays	X: HTH	H: Phage G20C small terminase N-terminal domain (From Topology)	T: Phage G20C small terminase N-terminal domain	F: PF21434	ECOD (1.6)
B	PF22412	e4xvnB2	A: alpha bundles	X: Phage G20C small terminase C-terminal domain (From Topology)	H: Phage G20C small terminase C-terminal domain (From Topology)	T: Phage G20C small terminase C-terminal domain	F: PF22412	ECOD (1.6)
C	PF21434	e4xvnC2	A: alpha arrays	X: HTH	H: Phage G20C small terminase N-terminal domain (From Topology)	T: Phage G20C small terminase N-terminal domain	F: PF21434	ECOD (1.6)
C	PF22412	e4xvnC1	A: alpha bundles	X: Phage G20C small terminase C-terminal domain (From Topology)	H: Phage G20C small terminase C-terminal domain (From Topology)	T: Phage G20C small terminase C-terminal domain	F: PF22412	ECOD (1.6)
D	PF21434	e4xvnD2	A: alpha arrays	X: HTH	H: Phage G20C small terminase N-terminal domain (From Topology)	T: Phage G20C small terminase N-terminal domain	F: PF21434	ECOD (1.6)
D	PF22412	e4xvnD1	A: alpha bundles	X: Phage G20C small terminase C-terminal domain (From Topology)	H: Phage G20C small terminase C-terminal domain (From Topology)	T: Phage G20C small terminase C-terminal domain	F: PF22412	ECOD (1.6)
E	PF21434	e4xvnE2	A: alpha arrays	X: HTH	H: Phage G20C small terminase N-terminal domain (From Topology)	T: Phage G20C small terminase N-terminal domain	F: PF21434	ECOD (1.6)
E	PF22412	e4xvnE1	A: alpha bundles	X: Phage G20C small terminase C-terminal domain (From Topology)	H: Phage G20C small terminase C-terminal domain (From Topology)	T: Phage G20C small terminase C-terminal domain	F: PF22412	ECOD (1.6)
F	PF21434	e4xvnF1	A: alpha arrays	X: HTH	H: Phage G20C small terminase N-terminal domain (From Topology)	T: Phage G20C small terminase N-terminal domain	F: PF21434	ECOD (1.6)
F	PF22412	e4xvnF2	A: alpha bundles	X: Phage G20C small terminase C-terminal domain (From Topology)	H: Phage G20C small terminase C-terminal domain (From Topology)	T: Phage G20C small terminase C-terminal domain	F: PF22412	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF21434	Phage G20C small terminase, N-terminal domain (TerS_N)	Phage G20C small terminase, N-terminal domain	This entry represents the N-terminal helix-turn-helix domain of the terminase small subunit (TerS) from Thermus phage G20c [1], which oligomerises into a nonamer that binds DNA, stimulates terminase large subunit (TerL) ATPase activity, and inhibits ...	This entry represents the N-terminal helix-turn-helix domain of the terminase small subunit (TerS) from Thermus phage G20c [1], which oligomerises into a nonamer that binds DNA, stimulates terminase large subunit (TerL) ATPase activity, and inhibits TerL nuclease activity [1].	Domain