6J0N

Cryo-EM Structure of an Extracellular Contractile Injection System, baseplate in extended state, refined in C6 symmetry

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth D]	PF04965	e6j0nD1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF04965	ECOD (1.6)
B [auth E]	PF04965	e6j0nE1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF04965	ECOD (1.6)
C [auth F]	PF04965	e6j0nF1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF04965	ECOD (1.6)
D [auth G]	PF04965	e6j0nG1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF04965	ECOD (1.6)
E [auth H]	PF04965	e6j0nH1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF04965	ECOD (1.6)
F [auth I]	PF04965	e6j0nI1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF04965	ECOD (1.6)
S [auth V]	PF17482	e6j0nV2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
S [auth V]	F_UNCLASSIFIED	e6j0nV1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: F_UNCLASSIFIED	ECOD (1.6)
T [auth W]	PF17482	e6j0nW2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
T [auth W]	F_UNCLASSIFIED	e6j0nW1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: F_UNCLASSIFIED	ECOD (1.6)
U [auth X]	PF17482	e6j0nX2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
U [auth X]	F_UNCLASSIFIED	e6j0nX1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: F_UNCLASSIFIED	ECOD (1.6)
V [auth Y]	PF17482	e6j0nY2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
V [auth Y]	F_UNCLASSIFIED	e6j0nY1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: F_UNCLASSIFIED	ECOD (1.6)
W [auth Z]	PF17482	e6j0nZ2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
W [auth Z]	F_UNCLASSIFIED	e6j0nZ1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: F_UNCLASSIFIED	ECOD (1.6)
X [auth a]	PF17482	e6j0na2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
X [auth a]	F_UNCLASSIFIED	e6j0na1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: F_UNCLASSIFIED	ECOD (1.6)
EA [auth h]	PF17482	e6j0nh2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
EA [auth h]	PF04984	e6j0nh1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
FA [auth i]	PF17482	e6j0ni2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
FA [auth i]	PF04984	e6j0ni1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
GA [auth j]	PF17482	e6j0nj2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
GA [auth j]	PF04984	e6j0nj1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
HA [auth k]	PF17482	e6j0nk2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
HA [auth k]	PF04984	e6j0nk1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
IA [auth l]	PF17482	e6j0nl2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
IA [auth l]	PF04984	e6j0nl1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
JA [auth m]	PF17482	e6j0nm2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
JA [auth m]	PF04984	e6j0nm1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
KA [auth n]	PF06841	e6j0nn1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
LA [auth o]	PF06841	e6j0no1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
MA [auth p]	PF06841	e6j0np1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
NA [auth q]	PF06841	e6j0nq1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
OA [auth r]	PF06841	e6j0nr1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
PA [auth s]	PF06841	e6j0ns1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
BB [auth z]	PF06841	e6j0nz1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
QA [auth 1]	PF06841	e6j0n11	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
RA [auth 2]	PF06841	e6j0n21	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
SA [auth 3]	PF06841	e6j0n31	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
TA [auth 4]	PF06841	e6j0n41	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
UA [auth 5]	PF06841	e6j0n51	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF06841	ECOD (1.6)
AB [auth y]	PF17482	e6j0ny2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
AB [auth y]	PF04984	e6j0ny1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
VA [auth t]	PF17482	e6j0nt2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
VA [auth t]	PF04984	e6j0nt1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
WA [auth u]	PF17482	e6j0nu2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
WA [auth u]	PF04984	e6j0nu1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
XA [auth v]	PF17482	e6j0nv2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
XA [auth v]	PF04984	e6j0nv1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
YA [auth w]	PF17482	e6j0nw1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
YA [auth w]	PF04984	e6j0nw2	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)
ZA [auth x]	PF17482	e6j0nx2	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: gpW/gp25-like (From Topology)	T: gpW/gp25-like	F: PF17482	ECOD (1.6)
ZA [auth x]	PF04984	e6j0nx1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Domain III of tail sheath protein Gp18 (From Topology)	T: Domain III of tail sheath protein Gp18	F: PF04984	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D], B [auth E], C [auth F], D [auth G], E [auth H], A [auth D], B [auth E], C [auth F], D [auth G], E [auth H], F [auth I]	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
S [auth V], T [auth W], U [auth X], V [auth Y], W [auth Z], S [auth V], T [auth W], U [auth X], V [auth Y], W [auth Z], X [auth a]	PF17482	Phage tail sheath C-terminal domain (Phage_sheath_1C)	Phage tail sheath C-terminal domain	This entry represents the C-terminal domain in a variety of phage tail sheath proteins [4].	Domain
AA [auth d], BA [auth e], CA [auth f], DA [auth g], Y [auth b], AA [auth d], BA [auth e], CA [auth f], DA [auth g], Y [auth b], Z [auth c]	PF19266	Contractile injection system tube protein (CIS_tube)	Contractile injection system tube protein	-	Family
EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], JA [auth m]	PF17482	Phage tail sheath C-terminal domain (Phage_sheath_1C)	Phage tail sheath C-terminal domain	This entry represents the C-terminal domain in a variety of phage tail sheath proteins [4].	Domain
EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], JA [auth m]	PF04984	Phage tail sheath protein subtilisin-like domain (Phage_sheath_1)	Phage tail sheath protein subtilisin-like domain	This entry represents the second domain in a variety of phage tail sheath proteins. According to ECOD this domain has a subtilisin-like structure.	Domain
KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], PA [auth s]	PF06841	T4-like virus tail tube protein gp19 (Phage_T4_gp19)	T4-like virus tail tube protein gp19	-	Family
BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], UA [auth 5]	PF06841	T4-like virus tail tube protein gp19 (Phage_T4_gp19)	T4-like virus tail tube protein gp19	-	Family
AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], ZA [auth x]	PF17482	Phage tail sheath C-terminal domain (Phage_sheath_1C)	Phage tail sheath C-terminal domain	This entry represents the C-terminal domain in a variety of phage tail sheath proteins [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth D], B [auth E], C [auth F], D [auth G], E [auth H], A [auth D], B [auth E], C [auth F], D [auth G], E [auth H], F [auth I]	Pvc9	-	-	-
G [auth J], H [auth K], I [auth L], J [auth M], K [auth N], G [auth J], H [auth K], I [auth L], J [auth M], K [auth N], L [auth O]	Pvc11	-	-	-
M [auth P], N [auth Q], O [auth R], P [auth S], Q [auth T], M [auth P], N [auth Q], O [auth R], P [auth S], Q [auth T], R [auth U]	Pvc12	-	-	-
S [auth V], T [auth W], U [auth X], V [auth Y], W [auth Z], S [auth V], T [auth W], U [auth X], V [auth Y], W [auth Z], X [auth a]	Pvc4	-	-	-
AA [auth d], BA [auth e], CA [auth f], DA [auth g], Y [auth b], AA [auth d], BA [auth e], CA [auth f], DA [auth g], Y [auth b], Z [auth c]	Pvc7	-	-	-
EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], JA [auth m]	Pvc2	-	-	-
KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], PA [auth s]	Pvc5	structural molecule activity	-	-
BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], UA [auth 5]	Pvc1	structural molecule activity	-	-
AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], ZA [auth x]	Pvc3	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth D], B [auth E], C [auth F], D [auth G], E [auth H], A [auth D], B [auth E], C [auth F], D [auth G], E [auth H], F [auth I]	IPR007048	IraD/Gp25-like	Domain
S [auth V], T [auth W], U [auth X], V [auth Y], W [auth Z], S [auth V], T [auth W], U [auth X], V [auth Y], W [auth Z], X [auth a]	IPR020287	Tail sheath protein, C-terminal domain	Domain
AA [auth d], BA [auth e], CA [auth f], DA [auth g], Y [auth b], AA [auth d], BA [auth e], CA [auth f], DA [auth g], Y [auth b], Z [auth c]	IPR045361	Contractile injection system tube protein, N-terminal domain	Domain
EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], JA [auth m]	IPR020287	Tail sheath protein, C-terminal domain	Domain
EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], EA [auth h], FA [auth i], GA [auth j], HA [auth k], IA [auth l], JA [auth m]	IPR035089	Tail sheath protein, subtilisin-like domain	Domain
KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], PA [auth s]	IPR011747	Conserved hypothetical protein CHP02241	Family
KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], KA [auth n], LA [auth o], MA [auth p], NA [auth q], OA [auth r], PA [auth s]	IPR010667	Bacteriophage T4, Gp19, tail tube	Family
BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], UA [auth 5]	IPR011747	Conserved hypothetical protein CHP02241	Family
BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], BB [auth z], QA [auth 1], RA [auth 2], SA [auth 3], TA [auth 4], UA [auth 5]	IPR010667	Bacteriophage T4, Gp19, tail tube	Family
AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], ZA [auth x]	IPR020287	Tail sheath protein, C-terminal domain	Domain
AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], AB [auth y], VA [auth t], WA [auth u], XA [auth v], YA [auth w], ZA [auth x]	IPR035089	Tail sheath protein, subtilisin-like domain	Domain