Cytokeratin 19 Polyclonal antibody

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• Cytokeratin 19 Polyclonal antibody (10712-1-AP)

Cytokeratin 19 Polyclonal Antibody for WB, IHC, IF/ICC, IF-P, FC (Intra), ELISA

Cat No. 10712-1-AP

Publications(224)

Reviews (2)

Host / Isotype

Rabbit / IgG

Reactivity

human, mouse and More (5)

Applications

WB, IHC, IF/ICC, IF-P, FC (Intra), ELISA

Synonyms

CK 19, CK19, KRT19, CK-19, Cytokeratin,Keratin

• 

  WB analysis using 10712-1-AP

  Various lysates were subjected to SDS PAGE followed by western blot with 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:80000 incubated at room temperature for 1.5 hours.

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  WB analysis using 10712-1-AP

  Various lysates were subjected to SDS PAGE followed by western blot with 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours.

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  WB analysis of mouse brain using 10712-1-AP

  mouse brain tissue were subjected to SDS PAGE followed by western blot with 10712-1-AP (KRT19 antibody) at dilution of 1:3000 incubated at room temperature for 1.5 hours.

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  WB analysis of mouse placenta using 10712-1-AP

  mouse placenta tissue were subjected to SDS PAGE followed by western blot with 10712-1-AP (KRT19 antibody) at dilution of 1:1000 incubated at room temperature for 1.5 hours.

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  WB analysis of A549 using 10712-1-AP

  A549 cells were subjected to SDS PAGE followed by western blot with 10712-1-AP (KRT19 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours.

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human colon using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:6000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human colon using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:6000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human colon using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:20000 (under 20x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human colon using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:20000 (under 20x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human colon cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:20000 (under 20x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human colon cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:20000 (under 20x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of mouse pancreas using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded mouse pancreas tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:1000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of mouse pancreas using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded mouse pancreas tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:1000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of mouse colon using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded mouse colon tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:10000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of mouse colon using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded mouse colon tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:10000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human thyroid cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human thyroid cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:10000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human thyroid cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human thyroid cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:10000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human stomach cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human stomach cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody at dilution of 1:200 (under 10x lens).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human stomach cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human stomach cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody at dilution of 1:200 (under 40x lens).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human skin using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human skin tissue slide using 10712-1-AP (Cytokeratin 19 antibody at dilution of 1:200 (under 10x lens).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human skin using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human skin tissue slide using 10712-1-AP (Cytokeratin 19 antibody at dilution of 1:200 (under 40x lens).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of mouse skin using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded mouse skin tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:3000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of mouse skin using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded mouse skin tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:3000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human lung cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human lung cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:5000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human lung cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human lung cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:5000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human oesophagus cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human oesophagus cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:6000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human oesophagus cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human oesophagus cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:6000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human breast cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human breast cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:6000 (under 10x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human breast cancer using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human breast cancer tissue slide using 10712-1-AP (Cytokeratin 19 antibody) at dilution of 1:6000 (under 40x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human pancreas using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human pancreas tissue slide using 10712-1-AP (Cytokeratin 19 antibody at dilution of 1:200 (under 10x lens).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IHC staining of human pancreas using 10712-1-AP

  Immunohistochemical analysis of paraffin-embedded human pancreas tissue slide using 10712-1-AP (Cytokeratin 19 antibody at dilution of 1:200 (under 40x lens).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of Retinal organoids using 10712-1-AP

  Retinal organoids (day 60) generated from human induced pluripotent stem cells (iPSCs) and fixed with 4% PFA. Stained for Tubulin beta 3/TUJ1 using 66375-1-Ig at 1:500 dilution (green) and Cytokeratin 19 using 10712-1-AP at 1:200 (red). Nuclear stain DAPI (blue). Scale bar = 100 µm. Data generated by Alessandro Bellapianta at Johannes Kepler Universitat, Austria.

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  IF Staining of mouse small intestine using 10712-1-AP

  Immunofluorescent analysis of (4% PFA) fixed paraffin-embedded mouse small intestine tissue using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:200 and CoraLite®488-Conjugated Goat Anti-Rabbit IgG(H+L) (SA00013-2). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of mouse small intestine using 10712-1-AP

  Immunofluorescent analysis of (4% PFA) fixed paraffin-embedded mouse small intestine tissue using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:200 and CoraLite®488-Conjugated Goat Anti-Rabbit IgG(H+L) (SA00013-2). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of mouse pancreas using 10712-1-AP

  Immunofluorescent analysis of (4% PFA) fixed paraffin-embedded mouse pancreas tissue using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:200 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L) (SA00013-2). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of mouse pancreas using 10712-1-AP

  Immunofluorescent analysis of (4% PFA) fixed paraffin-embedded mouse pancreas tissue using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:200 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L) (SA00013-2). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of HeLa using 10712-1-AP

  Immunofluorescent analysis of (-20°C Ethanol) fixed HeLa cells using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:200 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of HeLa using 10712-1-AP

  Immunofluorescent analysis of (-20°C Ethanol) fixed HeLa cells using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:400 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L), CL594-Phalloidin (red).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of HaCaT using 10712-1-AP

  Immunofluorescent analysis of (-20°C Methanol) fixed HaCaT cells using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:400 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  IF Staining of HepG2 using 10712-1-AP

  Immunofluorescent analysis of (-20°C Ethanol) fixed HepG2 cells using Cytokeratin 19 antibody (10712-1-AP) at dilution of 1:400 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L).

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy
• 

  FC experiment of MCF-7 using 10712-1-AP

  1x10^6 MCF-7 cells were intracellularly stained with 0.8 ug Cytokeratin 19 Polyclonal antibody (10712-1-AP) and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L) (SA00013-2)(red), or 0.8 ug rabbit IgG isotype control (blue). Cells were fixed with 4% PFA and permeabilized with Flow Cytometry Perm Buffer.

  This validation data has been generated in-house and reviewed by Proteintech scientists. Find out more on our antibody validation policy

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Tested Applications

• Positive WB detected in: A431 cells, mouse placenta tissue, mouse brain tissue, A549 cells, HepG2 cells, HT-29 cells, MCF-7 cells, T-47D cells, SK-BR-3 cells
• Positive IHC detected in: human colon tissue, human breast cancer tissue, human colon cancer tissue, human lung cancer tissue, human oesophagus cancer tissue, human pancreas tissue, human skin tissue, human stomach cancer tissue, human thyroid cancer tissue, mouse colon tissue, mouse pancreas tissue, mouse skin tissue; Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
• Positive IF-P detected in: Retinal organoids, mouse pancreas tissue, mouse small intestine tissue
• Positive IF/ICC detected in: HaCaT cells, HeLa cells, HepG2 cells
• Positive FC (Intra) detected in: MCF-7 cells

Recommended dilution

• Western Blot (WB): WB : 1:20000-1:100000
• Immunohistochemistry (IHC): IHC : 1:3000-1:12000
• Immunofluorescence (IF)-P: IF-P : 1:10-1:100
• Immunofluorescence (IF)/ICC: IF/ICC : 1:200-1:800
• Flow Cytometry (FC) (INTRA): FC (INTRA) : 0.80 ug per 10^6 cells in a 100 µl suspension

It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Sample-dependent, Check data in validation data gallery.

Product Information

10712-1-AP targets Cytokeratin 19 in WB, IHC, IF/ICC, IF-P, FC (Intra), ELISA applications and shows reactivity with human, mouse samples.

• Tested Reactivity: human, mouse
• Cited Reactivity: human, mouse, rat, pig, canine, goat, sheep
• Host / Isotype: Rabbit / IgG
• Class: Polyclonal
• Type: Antibody
• Immunogen:

  CatNo: Ag1085

  Product name: Recombinant human CK19 protein

  Source: e coli.-derived, PGEX-4T

  Tag: GST

  Domain: 80-400 aa of BC007628

  Sequence: EKLTMQNLNDRLASYLDKVRALEAANGELEVKIRDWYQKQGPGPSRDYSHYYTTIQDLRDKILGATIENSRIVLQIDNARLAADDFRTKFETEQALRMSVEADINGLRRVLDELTLARTDLEMQIEGLKEELAYLKKNHEEEISTLRGQVGGQVSVEVDSAPGTDLAKILSDMRSQYEVMAEQNRKDAEAWFTSRTEELNREVAGHTEQLQMSRSEVTDLRRTLQGLEIELQSQLSMKAALEDTLAETEARFGAQLAHIQALISGIEAQLGDVRADSERQNQEYQRLMDIKSRLEQEIATYRSLLEGQEDHYNNLSASKVL

• Full Name: keratin 19
• Calculated Molecular Weight: 40 kDa
• Observed Molecular Weight: 44-50 kDa
• GenBank Accession Number: BC007628
• Gene Symbol: Cytokeratin 19
• Gene ID (NCBI): 3880
• RRID: AB_2133325
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Antigen affinity purification
• UNIPROT ID: P08727
• Storage Buffer: PBS with 0.02% sodium azide and 50% glycerol, pH 7.3.
• Storage Conditions: Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage. 20ul sizes contain 0.1% BSA.

Background Information

Cytokeratin 19 (CK19 or KRT19) is a type I (acidic) cytokeratin. It is an intermediate filament protein providing structural rigidity and multipurpose scaffolds in epithelial cells. CK19 is often overexpressed in various cancers (e.g., hepatocellular carcinoma [HCC], pancreatic adenocarcinoma, lung cancer) and serves as a biomarker for hepatic progenitor cells (HPCs) associated with poor prognosis in HCC patients . Additionally, CK19 expression is common in pancreatic and gastrointestinal adenocarcinomasand has been studied as a potential diagnostic and prognostic marker for pancreatic neuroendocrine tumors (PNETs), where positive CK19 expression correlates with poor prognosis. Serum CK19 fragments (e.g., CYFRA 21-1, CK19-2G2) have been investigated as tumor markers for lung and breast cancer, with preoperative levels associated with metastasis and survival.

Publications

What published studies show

Automatically generated from the publication citations by Able AI.

• Human
• Mouse
• Rat
• Monkey
• Pig

Species	Application	Title
mouse	IHC,IF	Nature; Evolutionary fingerprints of epithelial-to-mesenchymal transition; Authors - Luigi Perelli
		Exploration (Beijing); Peptide RL-QN15 Regulates Functions of Epidermal Stem Cells to Accelerate Skin Wound Regeneration via the FZD8/β-Catenin Axis.; Authors - Yuansheng Li
mouse	IF	Gut; ISG15 deficiency in hepatic stellate cells promotes TGFβ2-induced liver fibrosis by counteracting CREB1 ISGylation; Authors - Yue Yuan
human	IF	Gut; Novel microenvironment-based classification of intrahepatic cholangiocarcinoma with therapeutic implications; Authors - Miguel A Martin-Serrano
		Cell Host Microbe; Zika Virus Targets Different Primary Human Placental Cells, Suggesting Two Routes for Vertical Transmission.; Authors - Takako Tabata
		Drug Resist Updat; NDRG1 overcomes resistance to immunotherapy of pancreatic ductal adenocarcinoma through inhibiting ATG9A-dependent degradation of MHC-1; Authors - Zhiheng Zhang

Reviews

5.0 out of 5

2 verified customer reviews

What customers say

Automatically generated from the verified customer reviews below by Able AI.

The reviews below have been submitted by verified Proteintech customers who received an incentive for providing their feedback.

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Kis (Verified Customer) (02-21-2025)

got nice results in IF analysis in mouse live tissues sections.

• Applications: Immunofluorescence
• Primary Antibody Dilution: 1:300

Alessandro (Verified Customer) (07-27-2022)

No aspecific staining, great outcome

• Applications: Immunofluorescence
• Primary Antibody Dilution: 1:200
• Cell Tissue Type: ROs