4I1S

Melanoma differentiation associated protein-5 Helicase domain complex with inhibitor Non-structural protein V

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)
A	MDA5_ID	e4i1sA3	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	Helicase_C_1	e4i1sA2	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	1.20.1320.30	Mainly Alpha	Up-down Bundle	phosphoenolpyruvate carboxylase, domain 3		CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	4.10.80.340	Few Secondary Structures	Irregular	Rhinovirus 14, subunit 4		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	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
B	PF13008	Zinc-binding domain of Paramyxoviridae V protein (zf-Paramyx-P)	Zinc-binding domain of Paramyxoviridae V protein	The Paramyxoviridae, which include such respiroviruses as para-influenzae and measles, produce phosphoproteins - protein P - that are integral to the polymerase transcription-replication complex. Protein P consists of two functionally distinct moieti ...	The Paramyxoviridae, which include such respiroviruses as para-influenzae and measles, produce phosphoproteins - protein P - that are integral to the polymerase transcription-replication complex. Protein P consists of two functionally distinct moieties, an N-terminal PNT, and a C-terminal PCT [1]. The P gene region transcribes proteins from all three ORFs, and the V protein consists of the PNT moiety and a more C-terminal 2-zinc-binding domain. This conserved region consists of the two-zinc-binding section sandwiched between beta sheets 6 and 7 of the overall V protein. It is the binding of this core domain of V protein with the DDB1 protein (part of the ubiquitin-ligase complex) of eukaryotes which represents the key element of the virus-host protein interaction [3]. In the Henipavirus family which includes Nipah and Hendra viruses, the V protein is able to block IFN (interferon) signalling by preventing IFN-induced STAT phosphorylation and nuclear translocation [2]. The P gene of morbillivirus is co-transcriptionally edited leading to a V protein being produced.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Melanoma differentiation associated protein-5	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding nucleic acid binding hydrolase activity catalytic activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA ATP-dependent activity cation binding transition metal ion binding zinc ion binding metal ion binding RNA binding	biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus	intracellular anatomical structure cytoplasm cellular anatomical entity
B	Non-structural protein V	ubiquitin-like ligase-substrate adaptor activity enzyme-substrate adaptor activity protein-macromolecule adaptor activity molecular adaptor activity RNA binding binding organic cyclic compound binding nucleic acid binding cation binding ion binding metal ion binding small molecule binding	symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms response to stimulus symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity response to biotic stimulus biological process involved in symbiotic interaction symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response response to host immune response symbiont-mediated suppression of host defenses symbiont-mediated perturbation of host innate immune response response to host response to external biotic stimulus symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms response to stimulus symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity response to biotic stimulus biological process involved in symbiotic interaction symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response response to host immune response symbiont-mediated suppression of host defenses symbiont-mediated perturbation of host innate immune response response to host response to external biotic stimulus symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism symbiont-mediated perturbation of host defense response response to host defenses response to other organism symbiont-mediated perturbation of host immune response response to defenses of other organism symbiont-mediated perturbation of host defenses response to external stimulus biological process involved in interaction with host symbiont-mediated suppression of host signal transduction pathway modulation by symbiont of host process cellular process symbiont-mediated suppression of cytoplasmic pattern recognition receptor signaling pathway symbiont-mediated suppression of host JAK-STAT cascade symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT activity symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT2 activity symbiont-mediated suppression of host type I interferon-mediated signaling pathway symbiont-mediated suppression of host interferon-mediated signaling pathway	host cellular component host intracellular part host cell cytoplasm host cell part host intracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038557	RIG-I-like receptor, C-terminal domain superfamily	Homologous Superfamily
A	IPR021673	RIG-I-like receptor, C-terminal regulatory domain	Domain
A	IPR031964	Caspase recruitment domain	Domain
A	IPR011029	Death-like domain superfamily	Homologous Superfamily
A	IPR006935	Helicase/UvrB, N-terminal	Domain
A	IPR001650	Helicase, C-terminal domain-like	Domain
A	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A	IPR041204	RIG-I-like receptor, C-terminal	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR025909	Phosphoprotein P soyouz module	Domain
B	IPR024279	Paramyxovirinae protein V, zinc-binding domain	Domain

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.