WormMine

WSWS298

An integrated data resource for C. elegans and related nematodes

Expression Pattern :

Pattern  The apical-basal polarity of the PAR proteins persists through early gastrulation, cells in the interior of the embryo accumulate PAR-3 on their blastocoel-facing surfaces; these and later changes in PAR distribution were not analyzed further. Primary Identifier  Expr1821
Remark  Previous data: analysis of the PAR proteins has focused primarily on their anterior-posterior localization at the 1-cell stage and their roles in subsequent anterior-posterior polarity. After cell division begins, however, this anterior-posterior asymmetry is reiterated only in the lineage of cells that form the germline. In contrast, some somatic (non-germline) cells show an apical-basal polarity in PAR localization. Subcellular Localization  By the middle of the 4-cell stage, the anterior PAR protein PAR-3 is present over the entire cortex of each somatic blastomere. However by the end of the 4-cell stage and at later stages PAR-3 is concentrated in a broad `cap' centered on the apical surface.
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4 Anatomy Terms

Definition Name Synonym Primary Identifier
embryonic founder cell Psub1 lineage name: P0.p WBbt:0006874
embryonic cell EMS   WBbt:0006876
embryonic cell ABa   WBbt:0005906
embryonic cell ABp   WBbt:0005994

1 Genes

WormBase Gene ID Gene Name Sequence Name Organism
WBGene00003918 par-3 F54E7.3 Caenorhabditis elegans

1 Life Stages

Remark Definition Other Name Public Name Primary Identifier
  The C. elegans life stage spanning 0-100min after first cleavage at 20 Centigrade. Proliferate from 1 cell to 28 cells. From first cleavage until the start of gastrulation. blastula embryo Ce WBls:0000005