Annotations: 3FXD

Crystal structure of interacting domains of IcmR and IcmQ

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
D	Methyltransf_25	e3fxdD1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Methyltransf_25	ECOD (v295.2)
B	Aldo_ket_red	e3fxdB1	A: alpha arrays	X: Alpha-beta plaits	H: CheC-like	T: CheC-like	F: Aldo_ket_red	ECOD (v295.2)
C	Med6	e3fxdC1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Med6	ECOD (v295.2)
A	Dot_icm_IcmQ	e3fxdA1	A: alpha arrays	X: SSHS domain	H: SSHS domain in type II DNA topoisomerase	T: SSHS domain in type II DNA topoisomerase	F: Dot_icm_IcmQ	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.20.58.90	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
B	1.20.58.90	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
C	1.20.5.420	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Immunoglobulin FC, subunit C	CATH (4.3.0)
A	1.20.5.420	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Immunoglobulin FC, subunit C	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF20863	IcmR, middle region (IcmR)	IcmR, middle region	IcmR plays a role in the Dot/Icm translocase from Legionella pneumophila. This Type IVb secretion system (T4bSS) is responsible for the delivery of protein effectors to the host cell cytoplasm. The middle region of IcmR (this entry) binds to the N-te ...	IcmR plays a role in the Dot/Icm translocase from Legionella pneumophila. This Type IVb secretion system (T4bSS) is responsible for the delivery of protein effectors to the host cell cytoplasm. The middle region of IcmR (this entry) binds to the N-terminal domain of IcmQ, which is essential for IcmQ (Pfam:PF09475) to function correctly. The interacting domains form helical hairpins within a four-helix bundle that is stabilized by hydrophobic packing [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	Protein IcmR	-	-	-
A, C	Protein IcmQ	identical protein binding protein binding binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR048675	IcmR, middle region	Domain
A, C	IPR043089	Dot/Icm secretion system IcmQ, C-terminal	Homologous Superfamily
A, C	IPR013365	Dot/Icm secretion system IcmQ	Family

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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.