Human MUC-4 Antibody

Catalog #: AF8195 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
AF8195
AF8195-SP

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Human MUC-4 Antibody Summary

Species Reactivity

Human

Specificity

Detects human MUC-4 in direct ELISAs and Western blots.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

Immunogen

E. coli-derived recombinant human MUC-4
Asn1137-Glu1317
Accession # Q99102

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Immunohistochemistry

5-15 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Immunohistochemistry

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MUC‑4 in Human Stomach. MUC-4 was detected in immersion fixed paraffin-embedded sections of human stomach using Goat Anti-Human MUC-4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8195) at 1 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membranes and cytoplasm of epithelial cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: MUC-4

MUC-4 (Mucin-4), also called ASGP (Ascites Sialoglycoprotein) is a highly glycosylated type I transmembrane glycoprotein that may be up to 950 kDa in its full-length, fully glycosylated form. Human MUC-4 cDNA encodes 2169 amino acids (aa) with a 28 aa signal sequence and a cleavage site that creates a 1416 aa soluble, extracellular alpha chain and a 725 aa single-pass transmembrane beta chain. Between aa 1072-1317 within the alpha chain, human MUC-4 shares 69% aa sequence identity with mouse and rat MUC-4. At least 14 soluble or transmembrane splice variants of 1102-2117 aa have been described, 5 of which contain the full sequence used as an immunogen. MUC-4 can serve as a ligand for the oncogenic receptor ErbB2 and a modulator of its phosphorylation and signaling. MUC-4 is frequently aberrantly expressed in epithelial tumors and can promote tumor growth and metastasis.

Long Name

Mucin 4, Cell Surface-associated

Entrez Gene IDs

4585 (Human); 140474 (Mouse)

Alternate Names

Ascites sialoglycoprotein; ASGP; HSA276359; MUC4; MUC-4; mucin 4, cell surface associated; mucin 4, tracheobronchial; mucin-4; Pancreatic adenocarcinoma mucin; Testis mucin; Tracheobronchial mucin