Support & Resources

+1

Cytokeratin 19 Monoclonal Mouse Antibody (A53-B/A2.26)

 Request Custom Conjugation

Product Attributes

Antibody number

#0020

Antibody reactivity (target)

Cytokeratin 19

Antibody type

Primary

Host species

Mouse

Clonality

Monoclonal

Clone

A53-B/A2.26

Isotype

IgG2a, kappa

Molecular weight

40 kDa

Synonyms

k19; k1cs; Keratin 19 Keratin Type i 40kD; krt19

Human gene symbol

KRT19

Entrez gene ID

3880

SwissProt

P08727

Unigene

654568

Immunogen

Human breast cancer MCF-7 cells

Antibody target cellular localization

Cytoskeleton

Verified antibody applications

IF (verified), IHC (FFPE) (verified), WB (verified)

Species reactivity

Human

Antibody application notes

Higher concentration may be required for direct detection using primary antibody conjugates than for indirect detection with secondary antibody, Immunofluorescence: 1-2 ug/mL, Does not react with rat or ferret; others not known, Immunohistology formalin-fixed 0.5-1 ug/mL, Staining of formalin-fixed tissues requires boiling tissue sections in 10 mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes, Flow Cytometry 0.5-1 ug/million cells/0.1 mL, Optimal dilution for a specific application should be determined by user

Positive control

MCF-7, HeLa, Hep-G2 cells, Breast Cancer

Shipping condition

Room temperature

Storage Conditions

Store at 2 to 8 °C, Protect fluorescent conjugates from light, Note: store BSA-free antibodies at -10 to -35 °C

Shelf life

Guaranteed for at least 24 months from date of receipt when stored as recommended

Regulatory status

For research use only (RUO)

Antibody/conjugate formulation

Conjugates: 0.1 mg/mL in PBS/0.1% BSA/0.05% azide, HRP conjugates: 0.1 mg/mL in PBS/0.05% BSA, Purified: 0.2 mg/mL in PBS/0.05% BSA/0.05% azide, Purified, BSA-free: 1 mg/mL in PBS without azide

Antibody research areas

Cancer, Cytoskeleton

Cell/tissue expression

Epithelial cells

Tumor expression

Breast cancer, Colorectal cancer, Gastrointestinal cancer, Liver cancer, Thyroid cancer

Conjugation
Don’t see what you’re looking for? Contact us for more conjugation options.
Note: Please be advised that primary antibodies with catalog numbers that begin with “BN” will only be offered conjugated to CF®405S, CF®488A, CF®568, CF®594, CF®640R, CF®647, and biotin as of 5/27/2022. However, previously available primary antibody conjugates that are in stock will remain available until inventory is exhausted. Please view the list of available conjugates on the product page. We also recommend our easy-to-use Mix-n-StainTM Antibody Labeling Kits for labeling antibodies with all CF® Dyes. We apologize for the inconvenience.
Size
Catalog #
price
Qty
50 uL
100 uL
500 uL
Clear selection
ADD TO CART
(Please select quantity above )

Wishlist updated! View wishlist

Product Description

This MAb reacts with the rod domain of human cytokeratin-19 (CK19), a polypeptide of 40 kDa. Its epitope maps between amino acid 312-335. CK19 is expressed in sweat gland, mammary gland ductal and secretory cells, bile ducts, gastrointestinal tract, bladder urothelium, oral epithelia, esophagus, and ectocervical epithelium. Anti-CK19 reacts with a wide variety of epithelial malignancies including adenocarcinomas of the colon, stomach, pancreas, biliary tract, liver, and breast. Perhaps the most useful application is the identification of thyroid carcinoma of the papillary type, although 50%-60% of follicular carcinomas are also labeled. Anti-CK19 is a useful marker for detection of tumor cells in lymph nodes, peripheral blood, bone marrow and breast cancer.

Primary antibodies are available purified, or with a selection of fluorescent CF® dyes and other labels. CF® dyes offer exceptional brightness and photostability. See the CF® Dye Brochure for more information. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.

Stock status: Because Biotium offers a large number of antibody and conjugation options, primary antibody conjugates may be made to order. Typical lead times are up to one week for CF® dye and biotin conjugates, and up to 2-3 weeks for fluorescent protein and enzyme conjugates. Please email order@biotium.com to inquire about stock status and lead times before placing your order.

 Catalog number key for antibody number 0020, Anti-Cytokeratin 19 (A53-B/A2.26) 

Catalog Number Key for Primary Antibody Conjugates

Antibody # prefixConjugationEx/Em (nm)Laser lineDetection channelDye Features
BNC04CF®405S404/431405DAPI (microscopy), AF405CF®405S Features
BNC88CF®488A490/515488GFP, FITCCF®488A Features
BNC68CF®568562/583532, 561RFP, TRITCCF®568 Features
BNC94CF®594593/614561Texas Red®CF®594 Features
BNC40CF®640R642/662633-640Cy®5CF®640R Features
BNC47CF®647650/665633-640Cy®5CF®647 Features
BNCBBiotinN/AN/AN/A
BNUBPurifiedN/AN/AN/A
BNUMPurified,
BSA-free
N/AN/AN/A
Alexa Fluor, Pacific Blue, Pacific Orange, and Texas Red are trademarks or registered trademarks of Thermo Fisher Scientific; Cy is a registered trademark of Cytiva; IRDye, LI-COR, and Odyssey are registered trademarks of LI-COR Bioscience.
 

You may also like…