This gene product belongs to the claudin protein family whose members have been identified as major integral membrane proteins localized exclusively at tight junctions. Claudins are expressed in an organ-specific manner and regulate tissue-specific physiologic properties of tight junctions. This protein is expressed in the intestine. Alternatively spliced transcript variants with different 5' untranslated region have been found for this gene.[provided by RefSeq, Jan 2010]
A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
PMP-22/EMP/MP20/Claudin family
extracellular loop
protein binding
identical protein binding
transporter
Pathways
Biological processes and signaling networks where the CLDN2 gene plays a role, providing insight into its function and relevance in health or disease.
The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
HNF4A
GATA4
GRM2
TEX264
HNF1A
KRTAP10-3
LPAR3
CDX2
ONECUT1
Enterotoxin
disease
hypercalciuria
colon adenocarcinoma
colon epithelial cancer
colon cancer
bronchiolo-alveolar adenocarcinoma
broncho-alveolar lung cancer
hypoxia
reperfusion injury
obstructive azoospermia with nephrolithiasis
hepatocellular carcinoma
regulated by
TNF
CDX2
GATA4
SPINT1
Caco2 cells
methotrexate
JNK
dextran sulfate
EGF
HCF-27 cells
regulates
FN1
ITGB1
Ca2+
agar
MMP9
water
chloride
ITGA5
Na+
ITGA2
role in cell
proliferation
expression in
activation in
growth
sphere formation
transepithelial electrical resistance
formation
internalization by
binding
polarization
Subcellular Expression
Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
Plasma Membrane
detergent-insoluble fractions
cell junction
intracellular membrane-bounded organelle
Cytoplasm
cell borders
apical compartment
cellular membrane
Nucleus
intercellular junctions
cell-cell contacts
tight junctional strands
apical membrane
nucleoplasm
nodes of Ranvier
Schmidt-Lanterman incisures
tight junctions
junctional complexes
microvilli
Gene Ontology Annotations
Describes the biological processes, cellular components, and molecular functions associated with the CLDN2 gene, providing context for its role in the cell.
BIOLOGICAL PROCESS
Functions and activities the gene product is involved in
calcium-independent cell-cell adhesion
transmembrane transport
tight junction assembly
CELLULAR COMPONENT
Where in the cell the gene product is active
tight junction
cell-cell junction
plasma membrane
MOLECULAR FUNCTION
What the gene product does at the molecular level
channel activity
identical protein binding
protein binding
structural molecule activity
Gene-Specific Assays for Results You Can Trust
Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.