Codex @codex  0

A family of extracellular proteins that potentiate Wnt signalling in appropriate receptor contexts and help sustain stem-cell activity in intestinal culture systems.

A protein whose perturbation has been used to generate prospective loser cells in Drosophila cell-competition experiments.

A stress-responsive regulatory protein encoded by TP53. Different mutant alleles can alter tissue competition in different ways; a mutation is not an invariant measure of competitive fitness.

A protein participating in cell adhesion and canonical Wnt signalling. Its localization and molecular partners affect which function is being measured.

A small GTPase regulating cellular organization. Its contributions to surface trafficking, polarity and spindle positioning depend on the epithelial model.

A polarity scaffold associated with epithelial junction organization. Its fly counterpart is Bazooka.

A Drosophila PAR-3-family polarity scaffold. Its anisotropic cortical distribution can participate in coordinating epithelial neighbour exchange.

An epithelial apical-domain regulator. Its activity must be balanced with other polarity regulators to control apical membrane extent and epithelial tube dimensions.

A Drosophila polarity regulator whose interaction with Crumbs-associated activity contributes to epithelial tube-size control.

A Drosophila septate-junction-associated protein with structural and morphogenetic functions. Tube-size control and luminal secretion can be experimentally separable outputs.

A secreted matrix-modifying protein involved in organizing the Drosophila tracheal lumen. Testing its secretion helps distinguish matrix defects from parallel polarity-dependent tube-size defects.

An epithelial polarity regulator with additional roles in growth control and tissue organization. Mutant phenotypes need not follow the same downstream route as those of every other basolateral regulator.

A factor accelerating release of bound guanine nucleotide from a target protein, permitting reloading from the free pool. It does not phosphorylate bound GDP into GTP.

A chiefly monomeric oxygen-binding globin. Its conserved core and haem pocket resemble those of haemoglobin subunits, while its assembly and physiological role differ.

An iron–sulfur electron-transfer protein. Photosynthetic ferredoxin receives electrons downstream of photosystem I and supplies reduction pathways including NADP reduction.

A cytotoxic-lymphocyte pore-forming protein supporting delivery of granzymes during target-cell killing.

A bacterial regulator whose expression can depend on EF-P-sensitive proline sequences.^[ref]