Keratin 81 Polyclonal antibody

• Featured Product
• KD/KO Validated

Keratin 81 Polyclonal Antibody for WB, IHC, IF/ICC, IP, ELISA

Host / Isotype

Rabbit / IgG

Reactivity

human, mouse

Applications

WB, IHC, IF/ICC, IP, ELISA

Conjugate

Unconjugated

Publications

4

Cat no : 11342-1-AP

Synonyms

KRT81, Type-II keratin Kb21, KRT 81, Keratin-81, ghHb1

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Validation Data Gallery

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  WB analysis using 11342-1-AP

  Various lysates were subjected to SDS PAGE followed by western blot with 11342-1-AP (KRT81 antibody) at dilution of 1:2000 incubated at room temperature for 1.5 hours.

• 

  WB analysis using 11342-1-AP

  Various lysates were subjected to SDS PAGE followed by western blot with 11342-1-AP (KRT81 antibody) at dilution of 1:4000 incubated at room temperature for 1.5 hours.

• 

  WB analysis of mouse thymus using 11342-1-AP

  mouse thymus tissue were subjected to SDS PAGE followed by western blot with 11342-1-AP (KRT81 antibody) at dilution of 1:2000 incubated at room temperature for 1.5 hours.

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  WB analysis of HEK-293 using 11342-1-AP

  HEK-293 cells were subjected to SDS PAGE followed by western blot with 11342-1-AP (KRT81 antibody) at dilution of 1:500 incubated at room temperature for 1.5 hours.

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  WB analysis of human spleen using 11342-1-AP

  human spleen tissue were subjected to SDS PAGE followed by western blot with 11342-1-AP (KRT81 antibody) at dilution of 1:300 incubated at room temperature for 1.5 hours.

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  IP experiment of HEK-293 using 11342-1-AP

  IP result of anti-KRT81 (IP:11342-1-AP, 4ug; Detection:11342-1-AP 1:300) with HEK-293 cells lysate 2800ug.

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  IHC staining of human colon cancer using 11342-1-AP

  Immunohistochemical analysis of paraffin-embedded human colon cancer using 11342-1-AP (KRT81 antibody) at dilution of 1:50 (under 10x lens).

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  IF Staining of HeLa using 11342-1-AP

  Immunofluorescent analysis of (-20°C Methanol) fixed HeLa cells using KRT81 antibody (11342-1-AP) at dilution of 1:200 and CoraLite®488-Conjugated Goat Anti-Rabbit IgG(H+L).

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Tested Applications

• Positive WB detected in: HeLa cells, mouse thymus tissue, human spleen tissue, HEK-293 cells, MCF-7 cells, mouse pancreas tissue
• Positive IP detected in: HEK-293 cells
• Positive IHC detected in: human colon cancer 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/ICC detected in: HeLa cells

Recommended dilution

• Western Blot (WB): WB : 1:1000-1:4000
• Immunoprecipitation (IP): IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate
• Immunohistochemistry (IHC): IHC : 1:20-1:200
• Immunofluorescence (IF)/ICC: IF/ICC : 1:50-1:500

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.

Published Applications

• KD/KO: See 2 publications below
• WB: See 2 publications below
• IHC: See 1 publications below

Product Information

11342-1-AP targets Keratin 81 in WB, IHC, IF/ICC, IP, ELISA applications and shows reactivity with human, mouse samples.

• Tested Reactivity: human, mouse
• Cited Reactivity: human, mouse
• Host / Isotype: Rabbit / IgG
• Class: Polyclonal
• Type: Antibody
• Immunogen: Keratin 81 fusion protein Ag1890
• Full Name: keratin 81
• Calculated Molecular Weight: 55 kDa
• Observed Molecular Weight: 54 kDa
• GenBank Accession Number: BC021241
• Gene Symbol: KRT81
• Gene ID (NCBI): 3887
• RRID: AB_2132771
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Antigen affinity purification
• 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

Keratins are a large family of proteins that form the intermediate filament cytoskeleton of epithelial cells, which are classified into two major sequence types. Type I keratins are a group of acidic intermediate filament proteins, including K9-K23, and the hair keratins Ha1-Ha8. Type II keratins are the basic or neutral courterparts to the acidic type I keratins, including K1-K8, and the hair keratins, Hb1-Hb6. KRT81 is a type II keratin.

Publications

Species	Application	Title
human	IHC	Clin Cancer Res; A Preclinical Trial and Molecularly Annotated Patient Cohort Identify Predictive Biomarkers in Homologous Recombination-deficient Pancreatic Cancer.; Authors - Yifan Wang
		Oncol Rep; Hair keratin KRT81 is expressed in normal and breast cancer cells and contributes to their invasiveness.; Authors - Naoki Nanashima
human	WB	Heliyon; Single-cell data analysis of malignant epithelial cell heterogeneity in lung adenocarcinoma for patient classification and prognosis prediction; Authors - Xu Ran ; KD Validated
human,mouse	WB	Adv Sci (Weinh); Ectopic Expression of a Truncated Isoform of Hair Keratin 81 in Breast Cancer Alters Biophysical Characteristics to Promote Metastatic Propensity; Authors - Diane S Kang ; KD Validated