Anti-Zonula occludens protein 3/TJP3 Antibody Picoband®

About this product

Boster Bio Anti-Zonula occludens protein 3/TJP3 Antibody catalog # PA1972. Tested in Flow Cytometry, ICC/IF, IHC, WB applications. This antibody reacts with Human. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Specifications

Catalog number

PA1972

Size / count

100 µg/Vial

Dry ice

No

Hazardous

No

Discontinued

No

Background

TJP3 (TIGHT JUNCTION PROTEIN 3), also called ZO3, is a protein that in humans is encoded by the TJP3 gene. TJP3 is a member of the family of membrane-associated guanylate kinase-like proteins (MAGUK) that associate with intracellular junctions (Itoh et al., 1999) . Haskins et al. (1998) showed that recombinant Tjp3 binds in vitro translated Tjp1 and binds ly to the cytoplasmic tail of occludin but no binding was detected between Tjp3 and Tjp2. Roh et al. (2002) determined that Tjp3 interacted with PATJ (INADL) and that both proteins colocalized to tight junctions in vivo. In vitro studies showed that the sixth and eighth PDZ domains of PATJ mediated interaction with the Tjp3 C-terminal domain and with Cldn1, respectively.

Synonyms

Tight junction protein ZO-3; Tight junction protein 3; Zona occludens protein 3; Zonula occludens protein 3; TJP3; ZO3

Gene Name

TJP3

Gene ID

27134

UniProt

O95049

Host

Rabbit

Reactivity

Human

Cross Reactivity

No cross-reactivity with other proteins

Immunogen

A synthetic peptide corresponding to a sequence at the C-terminus of human Zonula occludens protein 3.

Clonality

Polyclonal

Tissue Specificity

Type I isoforms are the predominant forms expressed in the endocardium. Isoform alpha is expressed in breast, ovary, testis, prostate, heart, skeletal muscle, lung, placenta liver, kidney, salivary gland, small intestine and brain, but not in uterus, stomach, pancreas, and spleen. Isoform 3 is the predominant form in mesenchymal cells and in non-neuronal organs, whereas isoform 6 is the major neuronal form. Isoform 8 is expressed in spinal cord and brain. Isoform 9 is the major form in skeletal muscle cells; in the nervous system it is expressed in spinal cord and brain. Also detected in adult heart, placenta, lung, liver, kidney, and pancreas. Isoform 10 is expressed in nervous system: spinal cord motor neurons, dorsal root ganglion neurons, and brain. Predominant isoform expressed in sensory and motor neurons. Not detected in adult heart, placenta, lung, liver, skeletal muscle, kidney, and pancreas. Not expressed in fetal lung, liver and kidney. Type IV isoforms are brain-specific. .

Applications

Flow Cytometry, ICC/IF, IHC, WB

Field of Research

Cell Adhesion, Cytoskeleton/ECM, Signal Transduction, Tight Junctions

Purification

Immunogen affinity purified.

Concentration

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Form

Lyophilized

Reconstitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

Function

Plays a role in tight junctions and adherens junctions.

References & Citations

1. Haskins, J., Gu, L., Wittchen, E. S., Hibbard, J., Stevenson, B. R. ZO-3, a novel member of the MAGUK protein family found at the tight junction, interacts with ZO-1 and occludin. J. Cell Biol. 141: 199-208, 1998. 2. Itoh, M., Furuse, M., Morita, K., Kubota, K., Saitou, M., Tsukita, S. binding of three tight junction-associated MAGUKs, ZO-1, ZO-2, and ZO-3, with the COOH termini of claudins. J. Cell Biol. 147: 1351-1363, 1999. 3. Roh, M. H., Liu, C.-J., Laurinec, S., Margolis, B. The carboxyl terminus of zona occludens-3 binds and recruits a mammalian homologue of discs lost to tight junctions. J. Biol. Chem. 277: 27501-27509, 2002.

Storage Conditions

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Calculated Molecular Weight

101 kDa

Observed Molecular Weight

130-140 kDa

Specificity

No cross reactivity with other proteins.

Applications Notes

6

Gene Name Synonym

Tight junction protein ZO-3

Subcellular Location

Cell membrane ; Peripheral membrane protein ; Cytoplasmic side . Cell junction, tight junction .

Sequence Similarities

Belongs to the MAGUK family.

Protein Name

Tight junction protein ZO-3

Isotype

Rabbit IgG

Contents

Each vial contains 4 mg Trehalose, 0.9 mg NaCl and 0.2 mg Na2HPO4.