Annotations: 2NPL

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	I-set_2	e2nplX1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF13927	Immunoglobulin domain (Ig_3)	Immunoglobulin domain	This family contains immunoglobulin-like domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	Coxsackievirus and Adenovirus Receptor	cell adhesion molecule binding protein binding binding cell adhesion mediator activity cell adhesive protein binding involved in AV node cell-bundle of His cell communication cell-cell adhesion mediator activity protein binding involved in heterotypic cell-cell adhesion identical protein binding virus receptor activity exogenous protein binding signaling receptor binding PDZ domain binding protein domain specific binding protein-containing complex binding cell adhesion molecule binding protein binding binding cell adhesion mediator activity cell adhesive protein binding involved in AV node cell-bundle of His cell communication cell-cell adhesion mediator activity protein binding involved in heterotypic cell-cell adhesion identical protein binding virus receptor activity exogenous protein binding signaling receptor binding PDZ domain binding protein domain specific binding protein-containing complex binding integrin binding beta-catenin binding connexin binding	developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development heart process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development heart process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation cell communication circulatory system process regulation of blood circulation AV node cell to bundle of His cell communication cardiac conduction cellular process regulation of multicellular organismal process cell communication involved in cardiac conduction heart contraction blood circulation gamma-delta T cell activation T cell activation immune system process cell activation lymphocyte activation leukocyte activation cell chemotaxis cellular response to stimulus chemotaxis response to stimulus neutrophil chemotaxis response to external stimulus neutrophil migration granulocyte migration leukocyte migration cellular response to chemical stimulus taxis granulocyte chemotaxis response to chemical myeloid leukocyte migration cell migration cell motility leukocyte chemotaxis locomotion regulation of AV node cell action potential AV node cell action potential regulation of cellular process signaling cell-cell signaling involved in cardiac conduction regulation of cardiac muscle cell action potential regulation of biological quality regulation of action potential AV node cell to bundle of His cell signaling cell-cell signaling action potential regulation of cell communication cardiac muscle cell action potential regulation of membrane potential heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules cell adhesion cell-cell adhesion cell-cell adhesion via plasma-membrane adhesion molecules cellular component organization organelle organization actin cytoskeleton organization actin filament-based process cellular component organization or biogenesis cytoskeleton organization homotypic cell-cell adhesion heterotypic cell-cell adhesion AV node cell-bundle of His cell adhesion involved in cell communication cardiac muscle cell-cardiac muscle cell adhesion biological process involved in interspecies interaction between organisms defense response to virus defense response response to other organism response to stress response to external biotic stimulus response to virus response to biotic stimulus sexual reproduction reproductive process multicellular organismal reproductive process germ cell migration gamete generation localization transepithelial transport transport establishment of localization cardiac muscle cell development cellular developmental process cell development muscle cell differentiation striated muscle tissue development muscle structure development striated muscle cell development muscle cell development cell differentiation cardiac cell development muscle tissue development cardiac muscle tissue development cardiac muscle cell differentiation tissue development cardiocyte differentiation striated muscle cell differentiation mitochondrion organization multicellular organismal-level homeostasis epithelial structure maintenance homeostatic process anatomical structure homeostasis tissue homeostasis cell junction organization cell-cell junction organization	cell-cell junction cellular anatomical structure anchoring junction cell junction cell periphery basal part of cell membrane plasma membrane basal plasma membrane plasma membrane region basolateral plasma membrane intracellular anatomical structure cytoplasm cell projection cell-cell junction cellular anatomical structure anchoring junction cell junction cell periphery basal part of cell membrane plasma membrane basal plasma membrane plasma membrane region basolateral plasma membrane intracellular anatomical structure cytoplasm cell projection neuron projection plasma membrane bounded cell projection adherens junction neuromuscular junction synapse cell body intercalated disc cell-cell contact zone extracellular region extracellular space actin-based cell projection filopodium acrosomal vesicle membrane-bounded organelle intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle vesicle membrane microdomain membrane raft growth cone axon distal axon site of polarized growth apicolateral plasma membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen protein-containing complex apical junction complex bicellular tight junction tight junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A [auth X]	IPR013106	Immunoglobulin V-set domain	Domain
A [auth X]	IPR003599	Immunoglobulin domain subtype	Domain
A [auth X]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A [auth X]	IPR007110	Immunoglobulin-like domain	Domain
A [auth X]	IPR052307	Epithelial Junction Adhesion Regulator	Family
A [auth X]	IPR003598	Immunoglobulin subtype 2	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth X]	Pharos: P78310	Liver Cirrhosis, Experimental pancreatic intraductal papillary-mucinous neoplasm psoriasis astrocytic tumor chronic kidney disease ductal breast carcinoma in situ glioblastoma large cell medulloblastoma malignant ependymoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Sjogren syndrome atypical teratoid rhabdoid tumor cutaneous lupus erythematosus facioscapulohumeral muscular dystrophy Liver Cirrhosis, Experimental pancreatic intraductal papillary-mucinous neoplasm psoriasis astrocytic tumor chronic kidney disease ductal breast carcinoma in situ glioblastoma large cell medulloblastoma malignant ependymoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Sjogren syndrome atypical teratoid rhabdoid tumor cutaneous lupus erythematosus facioscapulohumeral muscular dystrophy interstitial cystitis medulloblastoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor spina bifida breast cancer diabetes mellitus gastric carcinoma interstitial lung disease lung cancer non-small cell lung carcinoma

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.