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Western Blot (WB) (Western blot analysis of extracts from COS-7 cells(uv treatment), using Phospho-Claudin 4 (Tyr208) Antibody. The lane on the left was treated with blocking peptide.)

Rabbit Claudin 4 Polyclonal Antibody | anti-CLDN4 antibody

Phospho-Claudin 4 (Tyr208) Antibody

Gene Names
CLDN4; CPER; CPE-R; CPETR; CPETR1; WBSCR8; hCPE-R
Reactivity
Human, Mouse, Rat, Monkey
Applications
Western Blot, Immunohistochemistry, ELISA
Purity
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
Synonyms
Claudin 4; Polyclonal Antibody; Phospho-Claudin 4 (Tyr208) Antibody; Claudin-4; Claudin4; CLD4_HUMAN; CLDN 4; CLDN4; Clostridium perfringens enterotoxin receptor 1; Clostridium perfringens enterotoxin receptor; CPE R; CPE receptor; CPE-R; CPE-receptor; CPER; CPETR 1; CPETR; CPETR1; hCPE R; WBSCR8; Williams Beuren syndrome chromosome region 8 protein; Williams-Beuren syndrome chromosomal region 8 protein; anti-CLDN4 antibody
Ordering
For Research Use Only!
Host
Rabbit
Reactivity
Human, Mouse, Rat, Monkey
Clonality
Polyclonal
Isotype
Rabbit IgG
Specificity
Phospho-Claudin 4 (Tyr208) Antibody detects endogenous levels of Claudin 4 only when phosphorylated at Tyr208.
Purity/Purification
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
Form/Format
Liquid. Rabbit IgG in phosphate buffered saline, pH7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Concentration
1mg/ml (varies by lot)
Applicable Applications for anti-CLDN4 antibody
Western Blot (WB), Immunohistochemistry (IHC), Peptide ELISA (EIA)
Application Notes
WB: 1:1000-3000
IHC: 1:50-1:200
Peptide ELISA: 1:20,000-1:40,000
Immunogen
A synthesized peptide derived from human Claudin 4 around the phosphorylation site of Tyr208.
Conjugation
Unconjugated
Fragment
Fab fragment
Post Translational Modifications
Phosphorylated. Phosphorylation by EPHA2 is stimulated by EFNA1 and alters interaction with TJP1.
Subunit Structure
Directly interacts with TJP1/ZO-1. Interacts with TJP2/ZO-2 and TJP3/ZO-3 (By similarity). Interacts with EPHA2; phosphorylates CLDN4 and may regulate tight junctions. Interacts with CLDN1. Interacts with CLDN8 (By similarity). (Microbial infection) Interacts (via both extracellular domains) with Clostridium perfringens enterotoxin CPE; the interaction may disrupt claudin assembly in tight junctions.
Similarity
Belongs to the claudin family.
Subcellular Location
Cell junction>Tight junction. Cell membrane>Multi-pass membrane protein.
Note: CLDN4 is required for tight junction localization in the kidney.
Preparation and Storage
Store at -20 degree C. Stable for 12 months from date of receipt.

Western Blot (WB)

(Western blot analysis of extracts from COS-7 cells(uv treatment), using Phospho-Claudin 4 (Tyr208) Antibody. The lane on the left was treated with blocking peptide.)

Western Blot (WB) (Western blot analysis of extracts from COS-7 cells(uv treatment), using Phospho-Claudin 4 (Tyr208) Antibody. The lane on the left was treated with blocking peptide.)

Western Blot (WB)

(Western blot analysis of Claudin 4 (Phospho-Tyr208) using K562 whole cell lysates.-/+ means absence or presence of N peptide(non-phospho peptide) and P peptide(phospho peptide).)

Western Blot (WB) (Western blot analysis of Claudin 4 (Phospho-Tyr208) using K562 whole cell lysates.-/+ means absence or presence of N peptide(non-phospho peptide) and P peptide(phospho peptide).)

Immunohistochemistry (IHC)

(At 1/200 staining Rat ganstric tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC) (At 1/200 staining Rat ganstric tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC)

(At 1/200 staining Mouse brain tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC) (At 1/200 staining Mouse brain tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC)

(At 1/200 staining Human kidney tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary antibody.)

Immunohistochemistry (IHC) (At 1/200 staining Human kidney tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary antibody.)
Related Product Information for anti-CLDN4 antibody
Channel-forming tight junction protein that mediates paracellular chloride transport in the kidney. Plays a critical role in the paracellular reabsorption of filtered chloride in the kidney collecting ducts. Claudins play a major role in tight junction-specific obliteration of the intercellular space, through calcium-independent cell-adhesion activity.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
22,077 Da
NCBI Official Full Name
claudin-4
NCBI Official Synonym Full Names
claudin 4
NCBI Official Symbol
CLDN4
NCBI Official Synonym Symbols
CPER; CPE-R; CPETR; CPETR1; WBSCR8; hCPE-R
NCBI Protein Information
claudin-4; CPE-receptor; Clostridium perfringens enterotoxin receptor 1; Williams-Beuren syndrome chromosomal region 8 protein
UniProt Protein Name
Claudin-4
Protein Family
UniProt Gene Name
CLDN4
UniProt Synonym Gene Names
CPER; CPETR1; WBSCR8; CPE-R
UniProt Entry Name
CLD4_HUMAN

NCBI Description

This gene encodes an integral membrane protein, which belongs to the claudin family. The protein is a component of tight junction strands and may play a role in internal organ development and function during pre- and postnatal life. This gene is deleted in Williams-Beuren syndrome, a neurodevelopmental disorder affecting multiple systems. [provided by RefSeq, Jul 2008]

Uniprot Description

Claudin-4: Plays a major role in tight junction-specific obliteration of the intercellular space. CLDN4 is located in the Williams-Beuren syndrome (WBS) critical region. WBS results from a hemizygous deletion of several genes on chromosome 7q11.23, thought to arise as a consequence of unequal crossing over between highly homologous low-copy repeat sequences flanking the deleted region. Belongs to the claudin family.

Protein type: Membrane protein, multi-pass; Cytoskeletal; Membrane protein, integral

Chromosomal Location of Human Ortholog: 7q11.23

Cellular Component: tight junction; apicolateral plasma membrane; integral to plasma membrane; apical plasma membrane; basal plasma membrane; plasma membrane; lateral plasma membrane

Molecular Function: identical protein binding; transmembrane receptor activity; structural molecule activity

Biological Process: female pregnancy; response to progesterone stimulus; signal transduction; calcium-independent cell-cell adhesion

Research Articles on CLDN4

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Product Notes

The CLDN4 cldn4 (Catalog #AAA9614258) is an Antibody produced from Rabbit and is intended for research purposes only. The product is available for immediate purchase. The Phospho-Claudin 4 (Tyr208) Antibody reacts with Human, Mouse, Rat, Monkey and may cross-react with other species as described in the data sheet. AAA Biotech's Claudin 4 can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB), Immunohistochemistry (IHC), Peptide ELISA (EIA). WB: 1:1000-3000 IHC: 1:50-1:200 Peptide ELISA: 1:20,000-1:40,000. Researchers should empirically determine the suitability of the CLDN4 cldn4 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Claudin 4, Polyclonal Antibody" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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