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Table 2 Suggested data normalization and imputation strategies for various proteomics experiments

From: Tidyproteomics: an open-source R package and data object for quantitative proteomics post analysis and visualization

Experimental design

Filter

Normalization

Imputation

Refs.

Small change between two groups (e.g. gene knockdown/out, mutation, disease, drug response, biomarker discovery)

n/a

ANY

Randomforest BETWEEN

[36, 58]

Difference between separate samples from the same organism (e.g. different organs, tissue sections, etc.) 

n/a

Median shift

Randomforest BETWEEN

 [36, 58]

Co-cultured multi-organism competitive study with or without environmental changes 

IN single organism

Median shift

Randomforest BETWEEN

[59]

Affinity capture (flowthrough/capture) 

OUT common contaminants

None, or linear based on bait subset

Minimum WITHIN 

[60]

Antibody purification (flowthrough/capture)

OUT common contaminants

n/a

Minimum WITHIN

[60]

Protein over-expression

n/a

Median shift

Minimum WITHIN

[60]

  1. These suggestions only reflect the opinions and experiences of the authors, have not been derived from examination of any specific literature, and do not come with any comparison testing. They are intended only as a starting point, adequate domain knowledge for each experimental design listed is expected