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All assays through which the antibody has been validated. Assays&annotation provide a detailed description of the different assays. The pie-charts indicate degree of validation.
Immunocytochemistry is used to validate the antibody staining and for assessing and validating the protein expression pattern in selected human cell lines.
Results of validation by standard or enhanced validation.
Standard validation is based on concordance with available experimental gene/protein characterization data in the UniProtKB/Swiss-Prot database. Standard validation results in scores Supported, Approved or Uncertain.
Enhanced validation is performed using either siRNA knockdown, tagged GFP cell lines or independent antibodies. For the siRNA validation the decrease in antibody-based staining intensity upon target protein downregulation is evaluated. For the GFP validation the signal overlap between the antibody staining and the GFP-tagged protein is evaluated. For the independent antibodies validation the evaluation is based on comparison of the staining of two (or more) independent antibodies directed towards independent epitopes on the protein.
For all cases except the siRNA validation, an image representative of the antibody staining pattern is shown. For the siRNA validation, a box plot of the results is shown.
Immunocytochemistry is used for validating antibody reliability by assessing staining pattern in cell lines. Validation scores include Enhanced, Supported, Approved and Uncertain.
The subcellular location is supported by literature.
Immunofluorescent staining of human cell line A-549 shows localization to nuclear speckles, plasma membrane, the Golgi apparatus & cell junctions.
Antibody dilution
Human assay: A-549 fixed with PFA, dilution: 1:19 Human assay: U2OS fixed with PFA, dilution: 1:19
WESTERN BLOTi
A Western blot analysis is performed on a panel of human tissues and cell lines to evaluate antibody specificity. For antibodies with unreliable result a revalidation using an over-expression lysate is performed.
Western Blot is used for quality control of the polyclonal antibodies generated in the project. After purification, the antibodies are used to detect bands in a setup of lysate and different tissues. The result is then scored Enhanced, Supported, Approved, or Uncertain.
Enhanced validation includes five different methods: Genetic validation, Recombinant expression validation, Independent antibody validation, Orthogonal validation and Capture MS validation.
The staining of an antibody is evaluated by Western Blot through analysis of samples from different cell lysates. A supportive score is given if band(s) of predicted size in kDa (+/-20%) is detected.
Band of predicted size in kDa (+/-20%) with additional bands present. Analysis performed using a standard panel of samples.
The Human Protein Atlas project is funded
