Recombinant Rat Claudin-1 (Cldn1) Protein

Recombinant Rat Claudin-1 (Cldn1) Protein — Claudins function as major constituents of the tight junction complexes that regulate the permeability of epithelia. Purity >85%.

SKU: BCRECP-00078TM Category:

Product Specifications

Uniprot No.P56745
Gene NamesCldn1
PurityGreater than 85% as determined by SDS-PAGE.
Expression Systemin vitro E.coli expression system
Expression Region1-211aa
SpeciesRattus norvegicus (Rat)
Tag InfoN-terminal 10xHis-tagged
Molecular weight28.9kDa
ActivityNot Test
BufferIf the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Function

Claudins function as major constituents of the tight junction complexes that regulate the permeability of epithelia. While some claudin family members play essential roles in the formation of impermeable barriers, others mediate the permeability to ions and small molecules. Often, several claudin family members are coexpressed and interact with each other, and this determines the overall permeability.

Biological Context

Subcellular Location: Cell junction, tight junction; Cell membrane (Multi-pass membrane protein); Basolateral cell membrane
Tissue Specificity: Detected in epididymis (at protein level). Detected in testis and epididymis

Product Specifications

Recombinant Rat Claudin-1 (Cldn1) Protein is a recombinant protein from Rattus norvegicus (Rat), expressed in in vitro E.coli expression system, covering amino acids 1-211aa, with N-terminal 10xHis-tagged tag, molecular weight 28.9kDa, purity Greater than 85% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.

Recommended applications depend on the target, product format, and product-specific validation data. Refer to the product datasheet or Certificate of Analysis (CoA), or contact BioCrest Sci for application guidance.

Biological Activity: Not Test

Storage: Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shipping & Lead Time: Availability, shipping conditions, and estimated lead time are confirmed in the formal quotation or order confirmation based on the product format, destination, and order requirements.

Protein Biology

Function

Claudins function as major constituents of the tight junction complexes that regulate the permeability of epithelia. While some claudin family members play essential roles in the formation of impermeable barriers, others mediate the permeability to ions and small molecules. Often, several claudin family members are coexpressed and interact with each other, and this determines the overall permeability. CLDN1 is required to prevent the paracellular diffusion of small molecules through tight junctions in the epidermis and is required for the normal barrier function of the skin. Required for normal water homeostasis and to prevent excessive water loss through the skin, probably via an indirect effect on the expression levels of other proteins, since CLDN1 itself seems to be dispensable for water barrier formation in keratinocyte tight junctions (By similarity)

Subcellular Location

Cell junction, tight junction; Cell membrane (Multi-pass membrane protein); Basolateral cell membrane

Tissue Specificity

Detected in epididymis (at protein level). Detected in testis and epididymis

Subunit

Can form homo- and heteropolymers with other CLDN. Homopolymers interact with CLDN3, but not CLDN2, homopolymers. Directly interacts with TJP1/ZO-1, TJP2/ZO-2 and TJP3/ZO-3. Interacts with MPDZ and PATJ. Interacts with OCLN, CD81, CLDN4, CLDN6 and CLDN9

Gene: Cldn1  |  Organism: Rattus norvegicus

Frequently Asked Questions

How do I order or inquire about this product?

Submit the Online Inquiry form with your required quantity and specifications, or email sales@biocrestsci.com. Available sizes, pricing, stock status, documentation, and estimated lead time are confirmed in the formal quotation.

What is the shipping and delivery time?

Availability, dispatch timing, shipping conditions, and delivery estimates depend on the product format, destination, and order requirements. These details are confirmed in the formal quotation or order confirmation.

How should this product be stored?

Follow the storage and handling instructions in the product-specific datasheet and Certificate of Analysis (CoA). Requirements may vary by product form and formulation; contact BioCrest Sci if product-specific guidance is needed.

What quality controls are performed on your products?

Quality-control data such as identity, purity, endotoxin level, or biological activity are provided only when specified on this product page, the datasheet, or Certificate of Analysis (CoA). Biological activity is not implied unless explicitly stated.

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