Ms X Cytokeratin 18

Species Reactivity	Key Applications	Host	Format	Antibody Type
Ca, Ch, H, Ht, M, Po, R, Rb	FC, ICC, IHC, WB	M	Purified	Monoclonal Antibody

Species Reactivity

Key Applications

Host

Format

Antibody Type

Ca, Ch, H, Ht, M, Po, R, Rb

FC, ICC, IHC, WB

Purified

Monoclonal Antibody

Description
Catalogue Number	MAB3234
Replaces	04-586
Brand Family	Chemicon®
Trade Name	Chemicon
Description	Anti-Cytokeratin 18 Antibody, clone RGE53
Background Information	Cytokeratins are a subfamily of intermediate filament proteins and are characterized by a remarkable biochemical diversity, represented in epithelial tissues by at least 20 different polypeptides. They range in molecular weight from between 40 kDa and 68 kDa and isoelectric pH between 4.9 - 7.8, The individual cytokeratin polypeptides are designated 1-20. The various epithelia in the human body usually express cytokeratins which are not only characteristic of the type of epithelium, but also related to the degree of maturation or differentiation within an epithelium. Cytokeratin subtype expression patterns are used to an increasing extent in the distinction of different types of epithelial malignancies.

Description

Catalogue Number

MAB3234

Replaces

04-586

Brand Family

Chemicon®

Trade Name

Chemicon

Description

Anti-Cytokeratin 18 Antibody, clone RGE53

Background Information

Cytokeratins are a subfamily of intermediate filament proteins and are characterized by a remarkable biochemical diversity, represented in epithelial tissues by at least 20 different polypeptides. They range in molecular weight from between 40 kDa and 68 kDa and isoelectric pH between 4.9 - 7.8, The individual cytokeratin polypeptides are designated 1-20. The various epithelia in the human body usually express cytokeratins which are not only characteristic of the type of epithelium, but also related to the degree of maturation or differentiation within an epithelium. Cytokeratin subtype expression patterns are used to an increasing extent in the distinction of different types of epithelial malignancies.

Product Information
Format	Purified
Control	Skin , Pancreas/tumor
Presentation	Protein A Purified mouse immunoglobulin in 20 mM sodium phosphate, 250 mM NaCl, pH. 7.6, with 0.1% sodium azide as a preservative.

Product Information

Format

Purified

Control

Skin , Pancreas/tumor

Presentation

Protein A Purified mouse immunoglobulin in 20 mM sodium phosphate, 250 mM NaCl, pH. 7.6, with 0.1% sodium azide as a preservative.

Applications
Application	Anti-Cytokeratin 18 Antibody, clone RGE53 is an antibody against Cytokeratin 18 for use in FC, IC, IH & WB.
Key Applications	Flow Cytometry Immunocytochemistry Immunohistochemistry Western Blotting
Applications Not Recommended	Immunohistochemistry (Paraffin)
Application Notes	Western blot Immunohistochemistry on fresh frozen or acetone fixed tissue sections. Formalin fixed, paraffin embedded tissues are not recommended for RGE53. Immunocytochemistry: (10μg/mL) Light fixation with 4% formalin, 2.5% PFA ( 5-10 minutes room temperature) or acetone. {See, Barrett, et al 2001} Permeabilization with 0.2% triton X-100 in blocking buffer if using formalin or PFA fixations. Flow cytometry: Acetone fixed/ethanol fixed cells {See Mezosi, E et al, 2002}. Optimal working dilutions must be determined by the end user.

Applications

Application

Anti-Cytokeratin 18 Antibody, clone RGE53 is an antibody against Cytokeratin 18 for use in FC, IC, IH & WB.

Key Applications

Flow Cytometry
Immunocytochemistry
Immunohistochemistry
Western Blotting

Applications Not Recommended

Immunohistochemistry (Paraffin)

Application Notes

Western blot

Immunohistochemistry on fresh frozen or acetone fixed tissue sections. Formalin fixed, paraffin embedded tissues are not recommended for RGE53.

Immunocytochemistry: (10μg/mL) Light fixation with 4% formalin, 2.5% PFA ( 5-10 minutes room temperature) or acetone. {See, Barrett, et al 2001} Permeabilization with 0.2% triton X-100 in blocking buffer if using formalin or PFA fixations.

Flow cytometry: Acetone fixed/ethanol fixed cells {See Mezosi, E et al, 2002}.

Optimal working dilutions must be determined by the end user.

Biological Information
Immunogen	Cytoskeletal preparation from HeLa cells
Clone	RGE53
Concentration	Please refer to the Certificate of Analysis for the lot-specific concentration.
Host	Mouse
Specificity	Specifically recognizes glandular epithelial cells from gastro-intestinal tract, respiratory tract and urogenetical tract. As well as endocrine and exocrine tissues and mesothelial cells. It is unreactive with stratified squamous epithelia (esophagus, epidermis, ectocervix). In transitional epithelium of the bladder RGE53 only reacts with the superficial (umbrella) cells. RGE53 can distinguish adenocarcinomas and mesotheliomas from squamous cell carcinoma and non-epithelial tumours. The antibody is directed against 45 kD cytokeratin protein (cytokeratin 18). Cross reactivity with; Keratin from most mammals, birds.
Isotype	IgG1
Species Reactivity	Canine Chicken Human Hamster Mouse Pig Rat Rabbit
Antibody Type	Monoclonal Antibody
Entrez Gene Number	NM_000224.2 NM_199187.1
Entrez Gene Summary	KRT18 encodes the type I intermediate filament chain keratin 18. Keratin 18, together with its filament partner keratin 8, are perhaps the most commonly found members of the intermediate filament gene family. They are expressed in single layer epithelial tissues of the body. Mutations in this gene have been linked to cryptogenic cirrhosis. Two transcript variants encoding the same protein have been found for this gene.
Gene Symbol	KRT18 K18 Keratin-18 CYK18 Cytokeratin-18 CK-18
Purification Method	Protein A Purfied
UniProt Number	P05783
UniProt Summary	FUNCTION: SwissProt: P05783 # Involved in the uptake of thrombin-antithrombin complexes by hepatic cells (By similarity). When phosphorylated, plays a role in filament reorganization. Involved in the delivery of mutated CFTR to the plasma membrane. Together with KRT8, is involved in interleukin-6 (IL-6)-mediated barrier protection. SIZE: 430 amino acids; 48058 Da SUBUNIT: Heterotetramer of two type I and two type II keratins. Keratin-18 associates with keratin-8. Interacts with the thrombin- antithrombin complex (By similarity). Interacts with PNN, HCV core protein and mutated CFTR. Interacts with YWHAE, YWHAH and YWHAZ only when phosphorylated. Interacts with DNAJB6, TCHP and TRADD. SUBCELLULAR LOCATION: Cytoplasm, perinuclear region. TISSUE SPECIFICITY: Expressed in colon, placenta, liver and very weakly in exocervix. Increased expression observed in lymph nodes of breast carcinoma. PTM: Phosphorylation at Ser-34 increases during mitosis. Hyperphosphorylated at Ser-53 in diseased cirrhosis liver. Phosphorylation increases by IL-6. & Proteolytically cleaved by caspases during epithelial cell apoptosis. Cleavage occurs at Asp-238 by either caspase-3, caspase-6 or caspase-7.DISEASE:SwissProt: P05783 # Defects in KRT18 are a cause of cryptogenic cirrhosis [MIM:215600]. SIMILARITY: SwissProt: P05783 ## Belongs to the intermediate filament family. MISCELLANEOUS: There are two types of cytoskeletal and microfibrillar keratin: I (acidic; 40-55 kDa) and II (neutral to basic; 56-70 kDa).
Molecular Weight	45 kD

Biological Information

Immunogen

Cytoskeletal preparation from HeLa cells

Clone

RGE53

Concentration

Please refer to the Certificate of Analysis for the lot-specific concentration.

Host

Mouse

Specificity

Specifically recognizes glandular epithelial cells from gastro-intestinal tract, respiratory tract and urogenetical tract. As well as endocrine and exocrine tissues and mesothelial cells. It is unreactive with stratified squamous epithelia (esophagus, epidermis, ectocervix). In transitional epithelium of the bladder RGE53 only reacts with the superficial (umbrella) cells. RGE53 can distinguish adenocarcinomas and mesotheliomas from squamous cell carcinoma and non-epithelial tumours. The antibody is directed against 45 kD cytokeratin protein (cytokeratin 18). Cross reactivity with; Keratin from most mammals, birds.

Isotype

IgG1

Species Reactivity

Canine
Chicken
Human
Hamster
Mouse
Pig
Rat
Rabbit

Antibody Type

Monoclonal Antibody

Entrez Gene Number

Entrez Gene Summary

KRT18 encodes the type I intermediate filament chain keratin 18. Keratin 18, together with its filament partner keratin 8, are perhaps the most commonly found members of the intermediate filament gene family. They are expressed in single layer epithelial tissues of the body. Mutations in this gene have been linked to cryptogenic cirrhosis. Two transcript variants encoding the same protein have been found for this gene.

Gene Symbol

KRT18
K18
Keratin-18
CYK18
Cytokeratin-18
CK-18

Purification Method

Protein A Purfied

UniProt Number

P05783

UniProt Summary

FUNCTION: SwissProt: P05783 # Involved in the uptake of thrombin-antithrombin complexes by hepatic cells (By similarity). When phosphorylated, plays a role in filament reorganization. Involved in the delivery of mutated CFTR to the plasma membrane. Together with KRT8, is involved in interleukin-6 (IL-6)-mediated barrier protection.
SIZE: 430 amino acids; 48058 Da
SUBUNIT: Heterotetramer of two type I and two type II keratins. Keratin-18 associates with keratin-8. Interacts with the thrombin- antithrombin complex (By similarity). Interacts with PNN, HCV core protein and mutated CFTR. Interacts with YWHAE, YWHAH and YWHAZ only when phosphorylated. Interacts with DNAJB6, TCHP and TRADD.
SUBCELLULAR LOCATION: Cytoplasm, perinuclear region.
TISSUE SPECIFICITY: Expressed in colon, placenta, liver and very weakly in exocervix. Increased expression observed in lymph nodes of breast carcinoma.
PTM: Phosphorylation at Ser-34 increases during mitosis. Hyperphosphorylated at Ser-53 in diseased cirrhosis liver. Phosphorylation increases by IL-6. & Proteolytically cleaved by caspases during epithelial cell apoptosis. Cleavage occurs at Asp-238 by either caspase-3, caspase-6 or caspase-7.DISEASE:SwissProt: P05783 # Defects in KRT18 are a cause of cryptogenic cirrhosis [MIM:215600].
SIMILARITY: SwissProt: P05783 ## Belongs to the intermediate filament family.
MISCELLANEOUS: There are two types of cytoskeletal and microfibrillar keratin: I (acidic; 40-55 kDa) and II (neutral to basic; 56-70 kDa).

Molecular Weight

45 kD

Product Usage Statements
Usage Statement	Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Product Usage Statements

Usage Statement

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage and Shipping Information
Storage Conditions	Maintain for 1 year at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Storage and Shipping Information

Storage Conditions

Maintain for 1 year at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Packaging Information
Material Size	100 µg

Packaging Information

Material Size

100 µg

实验耗材

分子生物学试剂

蛋白与免疫学

生化试剂

细胞及检测试剂

色谱及层析

仪器设备

实验服务

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