ABBREVIATION

SYNONYMS (S)
ANTONYMS (A)

PDA

Y blast cell (S)
F cell (archaic)

Y (herm)
ABprpppaaaa

Y.a (male)

A motor neuron that becomes terminally differentiated as PDA after early larval stages in the hermaphrodite when it forms a portion of the anterior wall of the rectum. In the male, the Y cell acts as a blast cell and divides again and the anterior daughter becomes PDA (Sulston and Horvitz, 1977).

A proteinaceous extension (usually Y shaped) that connects an axoneme to the cell membrane of a cilium.

URY

Yellow fluorescent protein

A useful tag for fluorescence microscopy, it is genetic mutant of green fluorescent protein. Its excitation peak is 514nm and its emission peak is 527nm. There are a number of more stable variants of YFP including Venus (Nagai et al., 2002) and Citrine (Griesbeck et al., 2001). For more details on fluorescent proteins see link.

See CFP
See GFP

A nutrient protein produced by intestinal cells and secreted by them into the pseudocoelom, from which it can be shared with other tissues in the body. Yolk is sequestered inside a membrane while lying within the cytoplasm (forming a yolk granule), but in the pseudocoelom it exists as a large free “particle” without a membrane coating. It can then be endocytosed back into another cytoplasmic granule in receiving cells, including oocytes prior to fertilization. Yolk accumulates within the body cavity in aging, post-reproductive animals (Herndon et al., 2002).

A membrane bounded sac containing yolk.

See Yolk