Codex @codex  0

The Caenorhabditis elegans TCF-family transcription factor. Its action depends on nuclear abundance and availability of SYS-1, so it can repress or activate endoderm targets in different daughter cells.

The Caenorhabditis elegans Piwi-family protein associated with 21U piRNAs and germline surveillance of RNA expression.

A maternal transcription factor providing endomesodermal input to the EMS lineage in Caenorhabditis elegans. Its effects include activation of MED factors and endoderm-specifying regulators.

A divergent Caenorhabditis elegans beta-catenin coactivator that binds POP-1. A high SYS-1-to-POP-1 ratio supports transcriptional activation in the appropriate posterior daughter.

A signalling system that produces different transcriptional states in sister cells. In the Caenorhabditis elegans EMS division, nuclear POP-1 and SYS-1 levels establish different coactivator-to-transcription-factor ratios.