Antibodies to Cytokeratin Proteins - Product Review 09

Introduction

Intermediate-sized filaments are abundant cytoplasmic structural proteins in most vertebrate cells. Cytokeratins, a group comprising at least 29 different proteins, are characteristic of epithelial and trichocytic cells.

Cytokeratins 1, 4, 5, 6, and 8 are members of the type II neutral-to-basic subfamily. Cytokeratin 1 (68 kDa) is a secondary type II keratin expressed in cornified epithelia. Cytokeratin 4 (59 kDa) is the secondary type II keratin expressed in non-cornified stratified squamous epithelia.

Cytokeratin 5 (58 kDa) is the primary type II keratin in stratified epithelia while cytokeratin type 8 (52 kDa) is the primary type II keratin in simple epithelia. Cytokeratin 6 (56 kDa) is a ’hyperproliferation‘ cytokeratin expressed in tissues with natural or pathological high turnover. The deduced human cytokeratin 7 protein contains 469 amino acids and has a calculated molecular mass of 51.4 kD. Cytokeratin 7 shares 82% amino acid identity with mouse cytokeratin 7 and 76% identity with rat kangaroo cytokeratin 7.

Western blot analysis of mouse tissues detected cytokeratin 7 expression in bladder, but not in epidermis. Cytokeratin 7 expression was found to be restricted to ducts and specific glands of simple epithelial tissues; examples included isolated cells in the acini of mammary gland, cells of lung alveoli and bronchiolar epithelium, kidney collecting duct, and Brunner glands of the duodenum.

Cytokeratins 10, 13, and 18 are members of the type I acidic subfamily. Cytokeratin 10 (56 kDa) is the secondary type I keratin expressed in cornified epithelia. Cytokeratin 13 (54 kDa) is the secondary type I keratin expressed in non-cornified stratified squamous epithelia. Cytokeratin 18 (45 kDa) is the primary type I keratin expressed in simple epithelial cells.

Cytokeratin 19 (40 kDa) is a type I keratin which can be expressed in both simple and in broad cells of stratifying epithelia at specific sites. Cytokeratin 20 has an apparent molecular mass of about 46 kD. Antibodies raised against cytokeratin 20 decorated typical cytokeratin fibril arrays in normal and transformed intestinal cells.

Immunocytochemical analysis of several human and rat tissues showed that cytokeratin 20 is a prominent component of intestinal and gastric foveolar epithelium, urothelial umbrella cells, and Merkel cells of epidermis. Sparse positive epithelial cells were noted in the thymus, bronchus, gall bladder, and prostate gland. Monoclonal anti-cytokeratin antibodies are specific markers of epithelial cell differentiation and have been widely used as tools in tumor identification and classification.

Antibody Tools for Detection of Cytokeratins

Acris Antibodies offers one of the worlds most comprehensive antibody product ranges for detection of all important keratins. These antibodies are suitable for immunohistochemical staining procedures (see picture gallery below) and / or other applications like Western blotting.

Picture Gallery

Staining of human skin using Pan Cytokeratin Marker AE1+AE3 cat# BM5001. Note cytoplasmic staining of epithelial cells

Staining of human skin using Pan Cytokeratin Marker AE1+AE3 cat# BM5001. Note cytoplasmic staining of epithelial cells

Staining of squamous cell lung carcinoma using pan Cytokeratin marker antibody Lu-5 cat# BM4068. Note cytoplasmic staining of tumor cells.

Staining of squamous cell lung carcinoma using pan Cytokeratin marker antibody Lu-5 cat# BM4068. Note cytoplasmic staining of tumor cells.

Staining of human colon carcinoma using anti Cytokeratin 20 antibody Ke20.8 cat# DM123. Note cytoplasmic staining of tumor cells.

Staining of human colon carcinoma using anti Cytokeratin 20 antibody Ke20.8 cat# DM123. Note cytoplasmic staining of tumor cells.

Staining of squamous cell lung carcinoma using acidic Cytokeratin marker antibody AE1 cat# BM5000 Note cytoplasmic staining of tumor cells.

Staining of squamous cell lung carcinoma using acidic Cytokeratin marker antibody AE1 cat# BM5000 Note cytoplasmic staining of tumor cells.

Staining of human prostata using pan basic Cytokeratin marker antibody DE-SQ cat# DM275. Note staining of basal epithelial cells

Staining of human prostata using pan basic Cytokeratin marker antibody DE-SQ cat# DM275. Note staining of basal epithelial cells

Staining of human colon carcinoma using anti Cytokeratin 19 antibody BA-17 cat# SM1822. Note cytoplasmic staining of tumor cells.

Staining of human colon carcinoma using anti Cytokeratin 19 antibody BA-17 cat# SM1822. Note cytoplasmic staining of tumor cells.

Staining of human tonsil using anti Cytokeratin 4 antibody 6B10 cat# BM559. Note cytoplasmic staining of mucosal epithelial cells

Staining of human tonsil using anti Cytokeratin 4 antibody 6B10 cat# BM559. Note cytoplasmic staining of mucosal epithelial cells

Staining of human mesothelioma using anti Cytokeratin 5, 6, 18 antibody LP34 cat# DM051. Note cytoplasmic staining of tumor cells

Staining of human mesothelioma using anti Cytokeratin 5, 6, 18 antibody LP34 cat# DM051. Note cytoplasmic staining of tumor cells

Staining of human mesothelioma using anti Cytokeratin 5, 6 antibody D5/16B4 cat# DM362. Note cytoplasmic staining of tumor cells

Staining of human mesothelioma using anti Cytokeratin 5, 6 antibody D5/16B4 cat# DM362. Note cytoplasmic staining of tumor cells

Staining of human lung carcinoma using anti Cytokeratin 5, 8 antibody C50 cat# DM182. Note cytoplasmic staining of tumor cells.

Staining of human lung carcinoma using anti Cytokeratin 5, 8 antibody C50 cat# DM182. Note cytoplasmic staining of tumor cells.

Staining of human colon carcinoma using anti Cytokeratin 19 antibody BA-17 cat# SM1822. Note cytoplasmic staining of tumor cells.

Staining of human colon carcinoma using anti Cytokeratin 19 antibody BA-17 cat# SM1822. Note cytoplasmic staining of tumor cells.

Staining of human skin using anti Cytokeratin 6 antibody LHK6B cat# DM271. Note cytoplasmic staining of epiderrmal cells.

Staining of human skin using anti Cytokeratin 6 antibody LHK6B cat# DM271. Note cytoplasmic staining of epiderrmal cells.

Staining of human breast carcinoma using anti Cytokeratin 18 antibody DA-7 cat# SM3044. Note cytoplasmic staining of tumor cells.

Staining of human breast carcinoma using anti Cytokeratin 18 antibody DA-7 cat# SM3044. Note cytoplasmic staining of tumor cells.

Staining of human ovarian carcinoma using anti Cytokeratin 7 antibody OVTL12/30 cat# DM057. Note cytoplasmic staining of tumor cells.

Staining of human ovarian carcinoma using anti Cytokeratin 7 antibody OVTL12/30 cat# DM057. Note cytoplasmic staining of tumor cells.

Staining of human skin using anti Cytokeratin 8, 18 antibody 5D3 cat# DM189. Note cytoplasmic staining of epithelial cells in sweat glands

Staining of human skin using anti Cytokeratin 8, 18 antibody 5D3 cat# DM189. Note cytoplasmic staining of epithelial cells in sweat glands

Staing of human lung using anti Cytokeratin 8 antibody M20 cat# BM5045. Note cytoplasmic staining of bronchial epithelial cells

Staing of human lung using anti Cytokeratin 8 antibody M20 cat# BM5045. Note cytoplasmic staining of bronchial epithelial cells

Staining of human colon carcinoma using anti Cytokeratin 8 antibody 35betaH11 cat# DM054. Note cytoplasmic staining of tumor cells

Staining of human colon carcinoma using anti Cytokeratin 8 antibody 35betaH11 cat# DM054. Note cytoplasmic staining of tumor cells

Staining of human tonsil using anti Cytokeratin 10, 13 antibody DE-K13 cat# DM056. Note cytoplasmic staining of mucosal epithelial cells.

Staining of human tonsil using anti Cytokeratin 10, 13 antibody DE-K13 cat# DM056. Note cytoplasmic staining of mucosal epithelial cells.

Staining of human skin using anti Cytokeratin 10 antibody LHP1 cat# DM185. Note cytoplasmic staining of suprabasal layers of epithelial cells

Staining of human skin using anti Cytokeratin 10 antibody LHP1 cat# DM185. Note cytoplasmic staining of suprabasal layers of epithelial cells

Staining of human skin using anti Cytokeratin 10 antibody DE-K10 cat# DM055. Note cytoplasmic staining of suprabasal layers of epithelial cells

Staining of human skin using anti Cytokeratin 10 antibody DE-K10 cat# DM055. Note cytoplasmic staining of suprabasal layers of epithelial cells

Staining of human tonsil using anti Cytokeratin 13 antibody 1C7 cat# BM5047. Note cytoplasmic staining of mucosal epithelial cells.

Staining of human tonsil using anti Cytokeratin 13 antibody 1C7 cat# BM5047. Note cytoplasmic staining of mucosal epithelial cells.

Staining of rat breast carcinoma using anti Cytokeratin 17 antibody Ks17.E3 cat# DM127. Note cytoplasmic staining of tumor cells.

Staining of rat breast carcinoma using anti Cytokeratin 17 antibody Ks17.E3 cat# DM127. Note cytoplasmic staining of tumor cells.

Staining of squamous cell lung carcinoma using anti Cytokeratin 14 antibody LL002 cat# SM1359. Note cytoplasmic staining of tumor cells.

Staining of squamous cell lung carcinoma using anti Cytokeratin 14 antibody LL002 cat# SM1359. Note cytoplasmic staining of tumor cells.

Staining of human skin using anti Cytokeratin 15 antibody LHK15 cat# DM305. Note cytoplasmic staining of epithelial cells in external rod sheets of hair follicle

Staining of human skin using anti Cytokeratin 15 antibody LHK15 cat# DM305. Note cytoplasmic staining of epithelial cells in external rod sheets of hair follicle

Staing of human lung carcinoma using anti Cytokeratin 16 antibody LL025 cat# SM1471. Note cytoplasmic staining of tumor cells.

Staing of human lung carcinoma using anti Cytokeratin 16 antibody LL025 cat# SM1471. Note cytoplasmic staining of tumor cells.

Staing of human lung carcinoma using anti Cytokeratin 17 antibody Ks17.E3 cat# DM127. Note cytoplasmic staining of tumor cells.

Staing of human lung carcinoma using anti Cytokeratin 17 antibody Ks17.E3 cat# DM127. Note cytoplasmic staining of tumor cells.

 

Available Antibody Panel to Cytokeratins

Anti- Cytokeratin (pan), anti- Cytokeratin-1, -3, -4, -5, -6, -7, -8, -9, -10, -13, -14, -15, -16, -17, -18, -19, and -20 antibody

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349 products - FILTER YOUR RESULTS!

Antibodies

Catalog No. Host Clone/Iso. Pres. React. Applications  
AP17531PU-N

Cytokeratin 4 (C-term) antibody

Western blot analysis of KRT4 antibody (C-term) (AP17531PU-N) in mouse spleen tissue lysates (35ug/lane). KRT4 (arrow) was detected using the purified Pab. Rabbit Hu, Ms E, WB
0.4 ml / €340.00
    Acris Antibodies GmbH
 
BM559P

Cytokeratin 4 antibody

Cytokeratin 4 Mouse 6B10 Purified Can, Fe, Hu, Ze C, F, ICC/IF, P, WB
0.1 mg / €310.00
  IgG1   Acris Antibodies GmbH
 
NB110-56915

Cytokeratin 4 antibody

Immunohistochemistry: Cytokeratin 4 Antibody (EP1599Y) [NB110-56915] - Immunohistochemical staining of paraffin-embedded cervical carcinoma using anti-Cytokeratin 4 (cat. #110-56915). Rabbit EP1599Y Purified Hu F, ICC/IF, IP, P, WB
0.1 ml / €390.00
  IgG   Novus Biologicals Inc.
 
NBP1-33412

Cytokeratin 4 antibody

Cytokeratin 4 Rabbit Hu ICC/IF, P, WB
0.1 mg / €390.00
  IgG   Novus Biologicals Inc.
 
NBP1-33592

Cytokeratin 4 antibody

Western  Blot:  Cytokeratin 4 Antibody [NBP1-33592] – Western blot analysis of Cytokeratin 4 on H1299 lysates using NBP1-33592 at a dilution of 1:1000. 30ug whole cell lysate loaded on 7.5% SDS PAGE gel. Rabbit Hu P, WB
0.1 ml / €390.00
  IgG   Novus Biologicals Inc.
 
NBP1-40813

Cytokeratin 4 antibody

Western Blot: Cytokeratin 4 Antibody (EPR1598) [NBP1-40813] - Western blot analysis on (A) A431 and (B) human uterus cell lysates using anti-Cytokeratin 4 Rabbit EPR1598 Hu, Rt ICC/IF, P, WB
0.1 ml / €430.00
  IgG   Novus Biologicals Inc.
 
GTX112211

Cytokeratin 4 antibody

Cytokeratin 4 Rabbit Aff - Purified Hu ICC/IF, P, WB
0.1 ml / €320.00
    GeneTex Inc.
 
Sample size available for 25µl / 99€ (read more…)
 
GTX113764

Cytokeratin 4 antibody

Cytokeratin 4 Rabbit Aff - Purified Hu P, WB
0.1 ml / €320.00
    GeneTex Inc.
 
Sample size available for 25µl / 99€ (read more…)
 
H00003851-B01

Cytokeratin 4 antibody

Western Blot analysis of KRT4 expression in transfected 293T cell line (H00003851-T01) by KRT4 MaxPab polyclonal antibody.

Lane 1: KRT4 transfected lysate(58.74 KDa).
Lane 2: Non-transfected lysate.
Mouse Serum Hu E(detection), WB
50 µl / €340.00
    Abnova Taiwan Corp.
 
H00003851-D01P

Cytokeratin 4 antibody

Western Blot analysis of KRT4 expression in transfected 293T cell line (H00003851-T01) by KRT4 MaxPab polyclonal antibody.

Lane 1: KRT4 transfected lysate(57.30 KDa).
Lane 2: Non-transfected lysate.
Rabbit Purified Hu E(detection), WB
0.1 mg / €360.00
    Abnova Taiwan Corp.
 
AM11167PU-N

Cytokeratin 5 (C-term) antibody

Flow Cytometric analysis of Rabbit anti-Cytokeratin 5 antibody Cat.-No AM11167PU in A431 (green) compare to negative control of Rabbit IgG (blue). Rabbit SP27 Supernatant Hu F, P, WB
1 ml / €560.00
    Acris Antibodies GmbH
 
AM11167PU-S

Cytokeratin 5 (C-term) antibody

Flow Cytometric analysis of Rabbit anti-Cytokeratin 5 antibody Cat.-No AM11167PU in A431 (green) compare to negative control of Rabbit IgG (blue). Rabbit SP27 Supernatant Hu F, P, WB
0.1 ml / €250.00
    Acris Antibodies GmbH
 
AM05293PU-N

Cytokeratin 5 (+ KRT14) antibody

Cytokeratin 5 Mouse 16.4 Purified Hu C, WB
0.1 mg / €300.00
  IgG2a   Acris Antibodies GmbH
 
AP06203PU-N

Cytokeratin 5 antibody

Western blot(WB) analysis of Keratin 5/  antibody (Cat.-No.: AP06203PU-N)  in extracts from HepG2 cells. Rabbit Aff - Purified Hu, Ms, Rt E, P, WB
0.1 mg / €320.00
    Acris Antibodies GmbH
 
BM5042

Cytokeratin 5 (+ KRT8) antibody

Cytokeratin 5 Mouse C22 Purified Amph, Bov, Hu, Hydra, Ms, Por C, ICC/IF, P, WB
50 µg / €290.00
  IgG1   Acris Antibodies GmbH
 
BM5151

Cytokeratin 5 (+ KRT8) antibody

Cytokeratin 5 Mouse RCK102 Supernatant Can, Hst, Hu, Ms, Por, Rb, Rt C, ICC/IF, P, WB
1 ml / €290.00
  IgG1   Acris Antibodies GmbH
 
BM6002P

Cytokeratin 5 (+ KRT8) antibody

RCK102 Cytokeratin staining of a human squamous cell carcinoma of the lung.
Mouse RCK102 Purified Can, Hst, Hu, Ms, Por, Rb, Rt C, F, ICC/IF, P, WB
0.1 mg / €300.00
  IgG1   Acris Antibodies GmbH
 
BP5006

Cytokeratin 5 antibody

Cytokeratin 5 Guinea Pig Serum Bov, Hu, Ms C, P, WB
0.1 ml / €340.00
    Acris Antibodies GmbH
 
DM182P

Cytokeratin 5 (+ KRT18) antibody

Immunohistochemistry staining of human prostate (paraffin section) using anti-cytokeratin 5+18 (clone C-50). Mouse C-50 Purified Mam C, ICC/IF, IP, P, WB
0.1 mg / €200.00
  IgG1   Acris Antibodies GmbH
 
NB100-91848

Cytokeratin 5 antibody

Western Blot: Keratin 5/75 Antibody [NB100-91848] - Western  blot  (WB)  analysis of Keratin 5/ (S573)  antibody in extracts from HepG2 cells Rabbit Aff - Purified Hu, Ms, Rt ICC/IF, P, WB
0.1 mg / €370.00
  IgG   Novus Biologicals Inc.
 

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