4GL2

Structural Basis for dsRNA duplex backbone recognition by MDA5

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Tandem AAA-ATPase domain	8103683	4000282	SCOP2 (2022-06-29)
A	SCOP2 Family	RIG-I RD-like	8046837	4005323	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	RecA-like P-loop NTPases	8103684	3002019	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	RecA-like P-loop NTPases	8103685	3002019	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Mss4-like	8103682	3001994	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	RecA-like P-loop NTPases	8103684	3002019	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Mss4-like	8103682	3001994	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	RIG-I_C-RD	e4gl2A2	A: beta complex topology	X: ETN0001 domain-like (From Homology)	H: ETN0001 domain-like	T: Mss4-like	F: RIG-I_C-RD	ECOD (1.6)
A	MDA5_ID	e4gl2A5	A: alpha bundles	X: Helical bundle insertion in helicase domains	H: Helical bundle in Hef helicase (From Topology)	T: Helical bundle in Hef helicase	F: MDA5_ID	ECOD (1.6)
A	DEAD_1	e4gl2A3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: DEAD_1	ECOD (1.6)
A	Helicase_C_1	e4gl2A4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Helicase_C_1	ECOD (1.6)
B	RIG-I_C-RD	e4gl2B3	A: beta complex topology	X: ETN0001 domain-like (From Homology)	H: ETN0001 domain-like	T: Mss4-like	F: RIG-I_C-RD	ECOD (1.6)
B	MDA5_ID	e4gl2B6	A: alpha bundles	X: Helical bundle insertion in helicase domains	H: Helical bundle in Hef helicase (From Topology)	T: Helical bundle in Hef helicase	F: MDA5_ID	ECOD (1.6)
B	DEAD_1	e4gl2B4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: DEAD_1	ECOD (1.6)
B	Helicase_C_1	e4gl2B5	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Helicase_C_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
A	1.20.1320.30	Mainly Alpha	Up-down Bundle	phosphoenolpyruvate carboxylase, domain 3		CATH (4.3.0)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	1.20.1320.30	Mainly Alpha	Up-down Bundle	phosphoenolpyruvate carboxylase, domain 3		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00271	Helicase conserved C-terminal domain (Helicase_C)	Helicase conserved C-terminal domain	The Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase.	Domain
A, B	PF04851	Type III restriction enzyme, res subunit (ResIII)	Type III restriction enzyme, res subunit	-	Family
A, B	PF11648	C-terminal domain of RIG-I (RIG-I_C-RD)	C-terminal domain of RIG-I	This family of proteins represents the regulatory domain RD of RIG-I, a protein which initiates a signalling cascade that provides essential antiviral protection for the host. The RD domain binds viral RNA, activating the RIG-I ATPase by RNA-dependan ...	This family of proteins represents the regulatory domain RD of RIG-I, a protein which initiates a signalling cascade that provides essential antiviral protection for the host. The RD domain binds viral RNA, activating the RIG-I ATPase by RNA-dependant dimerisation. The structure of RD contains a zinc-binding domain and is thought to confer ligand specificity [1].	Domain
A, B	PF18119	RIG-I receptor C-terminal domain (RIG-I_C)	RIG-I receptor C-terminal domain	This is the C-terminal domain of Innate Immune Pattern-Recognition Receptor RIG-I present in homo sapiens. RIG-I is a key cytosolic pattern-recognition receptors of the vertebrate innate immune system that form the first line of defense against RNA v ...	This is the C-terminal domain of Innate Immune Pattern-Recognition Receptor RIG-I present in homo sapiens. RIG-I is a key cytosolic pattern-recognition receptors of the vertebrate innate immune system that form the first line of defense against RNA viral infection. RNA binding to RIG-I is mediated both by the C-terminal domain and by the helicase domain. The C-terminal domain specifically binds the 5'triphosphate end with a 10-fold higher affinity compared to 5'OH-dsRNA [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Interferon-induced helicase C domain-containing protein 1	RNA binding double-stranded RNA binding binding organic cyclic compound binding nucleic acid binding single-stranded RNA binding ribonucleoprotein complex binding protein-containing complex binding molecular transducer activity pattern recognition receptor activity signaling receptor activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding RNA binding double-stranded RNA binding binding organic cyclic compound binding nucleic acid binding single-stranded RNA binding ribonucleoprotein complex binding protein-containing complex binding molecular transducer activity pattern recognition receptor activity signaling receptor activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA cation binding transition metal ion binding zinc ion binding metal ion binding identical protein binding protein binding	cellular response to stimulus cytoplasmic pattern recognition receptor signaling pathway regulation of defense response positive regulation of response to biotic stimulus regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of cellular process pattern recognition receptor signaling pathway response to stimulus regulation of response to external stimulus intracellular receptor signaling pathway signaling positive regulation of biological process response to biotic stimulus cell communication cellular response to stimulus cytoplasmic pattern recognition receptor signaling pathway regulation of defense response positive regulation of response to biotic stimulus regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of cellular process pattern recognition receptor signaling pathway response to stimulus regulation of response to external stimulus intracellular receptor signaling pathway signaling positive regulation of biological process response to biotic stimulus cell communication positive regulation of response to stimulus immune response-activating signaling pathway positive regulation of response to external stimulus immune response-regulating signaling pathway positive regulation of immune response regulation of response to stress response to stress innate immune response regulation of immune system process response to external biotic stimulus signal transduction positive regulation of immune system process innate immune response-activating signaling pathway regulation of biological process positive regulation of innate immune response defense response immune response response to other organism regulation of innate immune response biological regulation defense response to symbiont response to external stimulus regulation of response to stimulus immune system process defense response to other organism positive regulation of defense response activation of innate immune response regulation of immune response cellular process activation of immune response cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular component organization or biogenesis interleukin-6 production multicellular organismal process cellular biosynthetic process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of interleukin-6 production regulation of interleukin-6 production positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process regulation of cytokine production organic substance biosynthetic process cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process cellular response to nitrogen compound response to organic substance cellular response to dsRNA cellular response to exogenous dsRNA cellular response to organic cyclic compound response to dsRNA response to nitrogen compound response to exogenous dsRNA cellular response to chemical stimulus response to chemical cellular response to organic substance response to organic cyclic compound organonitrogen compound metabolic process peptidyl-lysine modification primary metabolic process protein sumoylation macromolecule modification peptidyl-amino acid modification protein metabolic process protein modification process post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal regulation of interferon-beta production interferon-beta production positive regulation of type I interferon production type I interferon production positive regulation of interferon-beta production regulation of type I interferon production response to cytokine positive regulation of response to cytokine stimulus regulation of response to cytokine stimulus defense response to virus antiviral innate immune response response to virus negative regulation of viral genome replication negative regulation of biological process viral life cycle negative regulation of viral process regulation of viral process regulation of viral life cycle viral genome replication viral process regulation of viral genome replication detection of virus regulation of tumor necrosis factor production positive regulation of tumor necrosis factor superfamily cytokine production tumor necrosis factor superfamily cytokine production positive regulation of tumor necrosis factor production tumor necrosis factor production regulation of tumor necrosis factor superfamily cytokine production type III interferon production regulation of type III interferon production MDA-5 signaling pathway interferon-alpha production regulation of interferon-alpha production positive regulation of interferon-alpha production cellular response to virus cytokine-mediated signaling pathway interferon-mediated signaling pathway cellular response to type I interferon cellular response to cytokine stimulus cell surface receptor signaling pathway type I interferon-mediated signaling pathway response to type I interferon	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytosol nucleus
C, D [auth E]	RNA (5'-R(APUPCPCPGPCPGPGPCPCPCPU)-3')	-	-	-
E [auth F], F [auth D]	RNA (5'-R(PAPGPGPGPCPCPGPCPGPGPAPU)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR021673	RIG-I-like receptor, C-terminal regulatory domain	Domain
A, B	IPR041204	RIG-I-like receptor, C-terminal	Domain
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B	IPR038557	RIG-I-like receptor, C-terminal domain superfamily	Homologous Superfamily
A, B	IPR031964	Caspase recruitment domain	Domain
A, B	IPR011029	Death-like domain superfamily	Homologous Superfamily
A, B	IPR006935	Helicase/UvrB, N-terminal	Domain
A, B	IPR001650	Helicase, C-terminal domain-like	Domain
A, B	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q9BYX4	Aicardi-Goutieres syndrome psoriasis selective IgA deficiency disease Aicardi-Goutieres syndrome 7 vitiligo Singleton-Merten syndrome 1 systemic lupus erythematosus influenza singleton-Merten dysplasia Graves disease juvenile dermatomyositis Libman-Sacks Disease malignant mesothelioma multiple sclerosis acquired metabolic disease Aicardi-Goutieres syndrome psoriasis selective IgA deficiency disease Aicardi-Goutieres syndrome 7 vitiligo Singleton-Merten syndrome 1 systemic lupus erythematosus influenza singleton-Merten dysplasia Graves disease juvenile dermatomyositis Libman-Sacks Disease malignant mesothelioma multiple sclerosis acquired metabolic disease pancreatic intraductal papillary-mucinous neoplasm Aicardi-Goutieres syndrome 2 Crohn disease dermatomyositis Sjogren syndrome glioblastoma thyrotoxicosis hypothyroidism ulcerative colitis intellectual disability large cell medulloblastoma lung cancer malignant ependymoma medulloblastoma myositis pilocytic astrocytoma cutaneous lupus erythematosus diabetes mellitus skin disease tuberculosis inflammatory bowel disease interstitial lung disease leukodystrophy lung carcinoma malignant glioma microphthalmia with limb anomalies nasopharyngeal carcinoma Aicardi-Goutieres syndrome 1 pseudo-TORCH syndrome autoimmune disease pustulosis palmaris et plantaris cystic fibrosis Hashimoto thyroiditis type 1 diabetes mellitus 19

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.