9EZA | pdb_00009eza

Interleukin-31 Receptor D1D2 in complex with Nemolizumab derived scFv

External Resource: Annotation

Domain Annotation: ECOD Classification
Thera-SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	V-set	e9ezaB2	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: V-set	ECOD (v295.2)
C	RPC5	e9ezaC1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: RPC5	ECOD (v295.2)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
A, C	Nemolizumab	IL31RA	Therapeutic SAbDab (2026-10-09)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF09240	Interleukin-6 receptor alpha chain, binding (IL6Ra-bind)	Interleukin-6 receptor alpha chain, binding	Members of this family adopt a structure consisting of an immunoglobulin-like beta-sandwich, with seven strands in two beta-sheets, in a Greek-key topology. They are required for binding to the cytokine Interleukin-6 [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	Interleukin-31 receptor subunit alpha	transcription coactivator activity transcription regulator activity transcription coregulator activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity immune receptor activity protein binding binding cytokine binding kinase binding enzyme binding protein kinase binding	cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular process cellular response to cytokine stimulus cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular process cellular response to cytokine stimulus signal transduction negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death defense response response to stress intracellular signal transduction intracellular signaling cassette MAPK cascade cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of biological process positive regulation of cellular process cell surface receptor signaling pathway via STAT cell surface receptor signaling pathway via JAK-STAT developmental process myeloid leukocyte differentiation cellular developmental process hemopoiesis macrophage differentiation cell development mononuclear cell differentiation myeloid cell differentiation cell differentiation anatomical structure development leukocyte differentiation regulation of protein modification process positive regulation of phosphorylation regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of peptidyl-tyrosine phosphorylation positive regulation of protein modification process phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process protein metabolic process protein modification process positive regulation of protein phosphorylation tyrosine phosphorylation of STAT protein protein phosphorylation regulation of tyrosine phosphorylation of STAT protein phosphorylation regulation of protein metabolic process regulation of peptidyl-tyrosine phosphorylation primary metabolic process regulation of macromolecule metabolic process positive regulation of tyrosine phosphorylation of STAT protein macromolecule modification metabolic process regulation of phosphorylation macromolecule metabolic process peptidyl-tyrosine phosphorylation regulation of metabolic process cell surface receptor protein tyrosine kinase signaling pathway enzyme-linked receptor protein signaling pathway positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process positive regulation of biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription monocyte differentiation regulation of macrophage activation multicellular organismal process regulation of leukocyte activation cell activation regulation of cell activation myeloid leukocyte activation leukocyte activation negative regulation of cell activation macrophage activation negative regulation of immune system process immune system process regulation of immune system process regulation of multicellular organismal process negative regulation of multicellular organismal process negative regulation of leukocyte activation negative regulation of macrophage activation homeostatic process	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane protein-containing complex cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane protein-containing complex signaling receptor complex axon cell projection neuron projection plasma membrane bounded cell projection
A, C	Nemolizumab scFv	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR015321	Type I cytokine receptor, cytokine-binding domain	Domain
B, D	IPR003961	Fibronectin type III	Domain
B, D	IPR052672	Type I Cytokine Receptor Family, Type 2 Subfamily	Family
B, D	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B, D	IPR036116	Fibronectin type III superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B, D	: Q8NI17	amyloidosis, primary localized cutaneous, 2 primary cutaneous amyloidosis amyloidosis amyloidosis, primary localized cutaneous, 1 acquired metabolic disease brain injury periodic fever syndrome tuberculosis Brain Injuries psoriasis