7AEB | pdb_00007aeb

Cryo-EM structure of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, the baseplate complex in extended state applied 6-fold 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)
PA [auth p]	F_UNCLASSIFIED	e7aebp1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
OA [auth o]	F_UNCLASSIFIED	e7aebo1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
NA [auth n]	F_UNCLASSIFIED	e7aebn1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
MA [auth m]	F_UNCLASSIFIED	e7aebm1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
LA [auth l]	F_UNCLASSIFIED	e7aebl1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
KA [auth k]	F_UNCLASSIFIED	e7aebk1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
CA [auth c]	F_UNCLASSIFIED	e7aebc1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
Z	F_UNCLASSIFIED	e7aebZ1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
Y	F_UNCLASSIFIED	e7aebY1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
DA [auth d]	F_UNCLASSIFIED	e7aebd1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
BA [auth b]	F_UNCLASSIFIED	e7aebb1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
AA [auth a]	F_UNCLASSIFIED	e7aeba1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F_UNCLASSIFIED	ECOD (1.6)
U	GPW_gp25	e7aebU1	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)
X	GPW_gp25	e7aebX1	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)
W	GPW_gp25	e7aebW1	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)
V	GPW_gp25	e7aebV1	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)
T	GPW_gp25	e7aebT1	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)
S	GPW_gp25	e7aebS1	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, Z	PF06841	T4-like virus tail tube protein gp19 (Phage_T4_gp19)	T4-like virus tail tube protein gp19	-	Family
S, T, U, V, W S, T, U, V, W, X	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
M, N, O, P, Q M, N, O, P, Q, R	PF19266	Contractile injection system tube protein (CIS_tube)	Contractile injection system tube protein	-	Family
M, N, O, P, Q M, N, O, P, Q, R	PF06841	T4-like virus tail tube protein gp19 (Phage_T4_gp19)	T4-like virus tail tube protein gp19	-	Family
G, H, I, J, K G, H, I, J, K, L	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
G, H, I, J, K G, H, I, J, K, L	PF06841	T4-like virus tail tube protein gp19 (Phage_T4_gp19)	T4-like virus tail tube protein gp19	-	Family
A, B, C, D, E A, B, C, D, E, F	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
A, B, C, D, E A, B, C, D, E, F	PF06841	T4-like virus tail tube protein gp19 (Phage_T4_gp19)	T4-like virus tail tube protein gp19	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
KA [auth k], LA [auth l], MA [auth m], NA [auth n], OA [auth o], KA [auth k], LA [auth l], MA [auth m], NA [auth n], OA [auth o], PA [auth p]	Phage tail protein	structural molecule activity	-	-
EA [auth e], FA [auth f], GA [auth g], HA [auth h], IA [auth i], EA [auth e], FA [auth f], GA [auth g], HA [auth h], IA [auth i], JA [auth j]	Putative phage tail sheath protein FI	-	-	-
AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, Z	Phospholipid/glycerol acyltransferase	structural molecule activity acyltransferase activity transferase activity catalytic activity	-	-
S, T, U, V, W S, T, U, V, W, X	Putative tail lysozyme	-	-	-
M, N, O, P, Q M, N, O, P, Q, R	LysM domain-containing protein	-	-	-
G, H, I, J, K G, H, I, J, K, L	Baseplate_J domain-containing protein	-	-	-
A, B, C, D, E A, B, C, D, E, F	baseplate protein (Algo12)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
KA [auth k], LA [auth l], MA [auth m], NA [auth n], OA [auth o], KA [auth k], LA [auth l], MA [auth m], NA [auth n], OA [auth o], PA [auth p]	IPR011747	Conserved hypothetical protein CHP02241	Family
KA [auth k], LA [auth l], MA [auth m], NA [auth n], OA [auth o], KA [auth k], LA [auth l], MA [auth m], NA [auth n], OA [auth o], PA [auth p]	IPR010667	Bacteriophage T4, Gp19, tail tube	Family
EA [auth e], FA [auth f], GA [auth g], HA [auth h], IA [auth i], EA [auth e], FA [auth f], GA [auth g], HA [auth h], IA [auth i], JA [auth j]	IPR052042	Tail sheath structural protein	Family
EA [auth e], FA [auth f], GA [auth g], HA [auth h], IA [auth i], EA [auth e], FA [auth f], GA [auth g], HA [auth h], IA [auth i], JA [auth j]	IPR020287	Tail sheath protein, C-terminal domain	Domain
AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, Z	IPR011747	Conserved hypothetical protein CHP02241	Family
AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, AA [auth a], BA [auth b], CA [auth c], DA [auth d], Y, Z	IPR010667	Bacteriophage T4, Gp19, tail tube	Family
S, T, U, V, W S, T, U, V, W, X	IPR007048	IraD/Gp25-like	Domain
M, N, O, P, Q M, N, O, P, Q, R	IPR045361	Contractile injection system tube protein, N-terminal domain	Domain
M, N, O, P, Q M, N, O, P, Q, R	IPR018392	LysM domain	Domain

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.