| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T1 |
0-102 |
Sentence |
denotes |
AP-2-dependent internalization of potassium channel Kir2.3 is driven by a novel di-hydrophobic signal. |
| T2 |
103-272 |
Sentence |
denotes |
The localization and density of Kir2.3 channels are influenced by the balance between PDZ protein interaction at the cell surface and routing into the endocytic pathway. |
| T3 |
273-368 |
Sentence |
denotes |
Here, we explore mechanisms by which the Kir2.3 channel is directed into the endocytic pathway. |
| T4 |
369-527 |
Sentence |
denotes |
We found that Kir2.3 channels are constitutively internalized from the cell surface in a dynamin-dependent manner, indicative of vesicle-mediated endocytosis. |
| T5 |
528-784 |
Sentence |
denotes |
The rate of Kir2.3 endocytosis was dramatically attenuated following RNA interference-mediated knockdown of either alpha adaptin (AP-2 clathrin adaptor) or clathrin heavy chain, revealing that Kir2.3 is internalized by an AP-2 clathrin-dependent mechanism. |
| T6 |
785-1026 |
Sentence |
denotes |
Structure-rationalized mutagenesis studies of a number of different potential AP-2 interaction motifs indicate that internalization of Kir2.3 is largely dependent on a non-canonical di-isoleucine motif (II413) embedded within the C terminus. |
| T7 |
1027-1166 |
Sentence |
denotes |
Internalization assays using CD4-Kir2.3 chimeras demonstrate that the di-isoleucine signal acts in an autonomous and transplantable manner. |
| T8 |
1167-1305 |
Sentence |
denotes |
Kir2.3 co-immunoprecipitates with alpha adaptin, and disruption of the di-isoleucine motif decreased interaction of the channel with AP-2. |
| T9 |
1306-1432 |
Sentence |
denotes |
Replacement of the di-isoleucine motif with a canonical di-leucine internalization signal actually blocked Kir2.3 endocytosis. |
| T10 |
1433-1630 |
Sentence |
denotes |
Moreover, in yeast three-hybrid studies, the Kir2.3 di-isoleucine motif does not bind the AP-2 alphaC-sigma2 hemicomplex in the way that has been recently observed for canonical di-leucine signals. |
| T11 |
1631-1793 |
Sentence |
denotes |
Altogether, the results indicate that Kir2.3 channels are marked for clathrin-dependent internalization from the plasma membrane by a novel AP-2-dependent signal. |
| T1 |
0-102 |
Sentence |
denotes |
AP-2-dependent internalization of potassium channel Kir2.3 is driven by a novel di-hydrophobic signal. |
| T2 |
103-272 |
Sentence |
denotes |
The localization and density of Kir2.3 channels are influenced by the balance between PDZ protein interaction at the cell surface and routing into the endocytic pathway. |
| T3 |
273-368 |
Sentence |
denotes |
Here, we explore mechanisms by which the Kir2.3 channel is directed into the endocytic pathway. |
| T4 |
369-527 |
Sentence |
denotes |
We found that Kir2.3 channels are constitutively internalized from the cell surface in a dynamin-dependent manner, indicative of vesicle-mediated endocytosis. |
| T5 |
528-784 |
Sentence |
denotes |
The rate of Kir2.3 endocytosis was dramatically attenuated following RNA interference-mediated knockdown of either alpha adaptin (AP-2 clathrin adaptor) or clathrin heavy chain, revealing that Kir2.3 is internalized by an AP-2 clathrin-dependent mechanism. |
| T6 |
785-1026 |
Sentence |
denotes |
Structure-rationalized mutagenesis studies of a number of different potential AP-2 interaction motifs indicate that internalization of Kir2.3 is largely dependent on a non-canonical di-isoleucine motif (II413) embedded within the C terminus. |
| T7 |
1027-1166 |
Sentence |
denotes |
Internalization assays using CD4-Kir2.3 chimeras demonstrate that the di-isoleucine signal acts in an autonomous and transplantable manner. |
| T8 |
1167-1305 |
Sentence |
denotes |
Kir2.3 co-immunoprecipitates with alpha adaptin, and disruption of the di-isoleucine motif decreased interaction of the channel with AP-2. |
| T9 |
1306-1432 |
Sentence |
denotes |
Replacement of the di-isoleucine motif with a canonical di-leucine internalization signal actually blocked Kir2.3 endocytosis. |
| T10 |
1433-1630 |
Sentence |
denotes |
Moreover, in yeast three-hybrid studies, the Kir2.3 di-isoleucine motif does not bind the AP-2 alphaC-sigma2 hemicomplex in the way that has been recently observed for canonical di-leucine signals. |
| T11 |
1631-1793 |
Sentence |
denotes |
Altogether, the results indicate that Kir2.3 channels are marked for clathrin-dependent internalization from the plasma membrane by a novel AP-2-dependent signal. |