Changes in physicochemical peptide properties.

Changes in number and physicochemical values of membrane proteins between the Mesophilic (M) and Psychrophilic (P) temperature groups. The results for all the 66 membrane protein families are shown in column 2, the 52 transmembrane proteins in column 3, and the 11 signal peptides in column 4. The p-values from the data adaptive paired t-test/Wilcoxon test (two-tailed) are included in parenthesis. The arrows indicate direction of change from the mesophilic to the psychrophilic group and are based on the median value of the observed changes.