Phosphorylation of VpCAMTA3 by VpCDPK13 enhances cold tolerance in grapevine
Danni Han, Junke Liu, Shutong Wan, Mi Xun, Ruixin Tang, Qiaoqiao Zhang, Chundong Niu, Yinpeng Xie, Yingqiang Wen, Qingmei Guan · 2026
Read Phosphorylation of VpCAMTA3 by VpCDPK13 enhances cold tolerance in grapevine by Danni Han, Junke Liu, Shutong Wan, Mi Xun, Ruixin Tang, Qiaoqiao Zhang, Chundong Niu, Yinpeng Xie, Yingqiang Wen, Qingmei Guan (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13462058.txt.
Description
Danni Han and colleagues report, in a 2026 plant study, a two-protein team that helps grapevine withstand cold. Low temperature limits grapevine growth and yield worldwide, and the crop has a narrow comfort range. Working with a hardy wild relative of the cultivated vine, the team found a calcium-sensing enzyme, VpCDPK13, that switches on in cold and promotes tolerance. Tests showed the enzyme binds a gene-control protein, VpCAMTA3.
Both proteins, when active, raised the vine's cold tolerance in tests. The enzyme adds chemical tags, called phosphorylation, to its partner at three sites. Tagged that way, the partner protein worked more strongly under cold stress. The authors frame the pair as a signaling module: calcium signals rise in cold, the enzyme reads them, and the tagged partner turns on protective genes. The finding offers a target for breeding or engineering grapevines that cope better with frost.
Catalog record
| CREATOR | Danni Han, Junke Liu, Shutong Wan, Mi Xun, Ruixin Tang, Qiaoqiao Zhang, Chundong Niu, Yinpeng Xie, Yingqiang Wen, Qingmei Guan |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 34483 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |