TABLE 1.
CFTR variants | Clinical dataa | Band C/band Bb (±S.E., n = 5) | Processingc | Normalized processingd | Normalized iodide efflux functione (±S.E., n = 6) | Iodide efflux to processed proteinf |
---|---|---|---|---|---|---|
% | % | % | % peak intensity | % | ||
WT-CFTR | —g | 83 ± 3 | 77 | 100 | 100 ± 8 | — |
Murine | — | 86 ± 5 | 66 | 86 | 74 ± 4 | 86 ± 4 |
E527Q | Mild CF | 64 ± 5 | 49 | 63 | 46 ± 4 | 73 ± 4 |
E528Q | — | 86 ± 5 | 79 | 102 | 135 ± 16 | 132 ± 10 |
S531T | — | 87 ± 6 | 81 | 105 | 71 ± 5 | 67 ± 5 |
K536Q | — | 69 ± 3 | 42 | 54 | 51 ± 4 | 94 ± 3 |
I539T | Revertant | 112 ± 5 | 81 | 105 | 49 ± 6 | 46 ± 5 |
L581F | — | 118 ± 3 | 83 | 107 | 72 ± 5 | 67 ± 3 |
L581F/K584E | — | 125 ± 2 | 77 | 100 | 100 ± 12 | 100 ± 8 |
T1263I | Mild CF | 75 ± 3 | 76 | 98 | 31 ± 8 | 31 ± 5 |
P1290T | Asymptomatic | 87 ± 3 | 82 | 106 | 92 ± 10 | 86 ± 6 |
K1302Q | — | 72 ± 3 | 77 | 100 | 37 ± 2 | 37 ± 2 |
Y1307N | — | 82 ± 2 | 76 | 98 | 70 ± 5 | 71 ± 3 |
Q1309K | — | 79 ± 4 | 77 | 100 | 26 ± 2 | 26 ± 3 |
S1311K | — | 73 ± 4 | 72 | 93 | 33 ± 7 | 35 ± 5 |
R1325K | — | 64 ± 6 | 78 | 101 | 47 ± 2 | 46 ± 4 |
V1338T | — | 88 ± 2 | 77 | 100 | 37 ± 11 | 37 ± 6 |
C1344Y | — | 71 ± 4 | 76 | 98 | 86 ± 4 | 87 ± 4 |
L1367I | — | 72 ± 5 | 80 | 103 | 36 ± 5 | 34 ± 5 |
D1394G | — | 78 ± 4 | 86 | 111 | 93 ± 12 | 83 ± 8 |
E1409D | — | 70 ± 3 | 70 | 90 | 43 ± 5 | 47 ± 4 |
a Data from the CFTR mutation database.
b Percentage of processing given by (band C/band B) × 100.
c Percentage of processing given by (band C/(band B + band C) × 100).
d Ratio of the “percent band C” value for each mutant (from previous column) over the same “percentage for WT-CFTR.”
e Iodide efflux expressed as percentage of peak intensity relative to that of WT-CFTR.
f Ratio of “Normalized iodide efflux function” values (from previous column) normalized to “Normalized processing” values (from column 5).
g —, not applicable/no information.