| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T1 |
0-64 |
Sentence |
denotes |
Characterization of CAX4, an Arabidopsis H(+)/cation antiporter. |
| T2 |
65-136 |
Sentence |
denotes |
Ion compartmentalization is essential for plant growth and development. |
| T3 |
137-331 |
Sentence |
denotes |
The Arabidopsis open reading frames for CAX1, CAX2, and CAX3 (cation exchangers 1, 2, and 3) were previously identified as transporters that may modulate ion fluxes across the vacuolar membrane. |
| T4 |
332-514 |
Sentence |
denotes |
To understand the diversity and role of H(+)/cation transporters in controlling plant ion levels, another homolog of the CAX genes, CAX4, was cloned from an Arabidopsis cDNA library. |
| T5 |
515-619 |
Sentence |
denotes |
CAX4 is 53% identical to CAX1 at the amino acid level, 42% identical to CAX2, and 54% identical to CAX3. |
| T6 |
620-766 |
Sentence |
denotes |
CAX4 transcripts appeared to be expressed at low levels in all tissues and levels of CAX4 RNA increased after Mn(2+), Na(+), and Ni(2+) treatment. |
| T7 |
767-871 |
Sentence |
denotes |
An N-terminal CAX4-hemagglutinin fusion appeared to localize to both yeast and plant vacuolar membranes. |
| T8 |
872-1012 |
Sentence |
denotes |
When expressed in yeast, CAX4, like CAX3, failed to suppress the Ca(2+) sensitivity of yeast strains deficient in vacuolar Ca(2+) transport. |
| T9 |
1013-1083 |
Sentence |
denotes |
Several modifications to CAX4 allowed the protein to transport Ca(2+). |
| T10 |
1084-1252 |
Sentence |
denotes |
Addition of amino acids to the N terminus of CAX4 and CAX3 caused both transporters to suppress the sensitivity of yeast strains deficient in vacuolar Ca(2+) transport. |
| T11 |
1253-1380 |
Sentence |
denotes |
These findings suggest that CAX transporters may modulate their ion transport properties through alterations at the N terminus. |
