WormMine: ExpressionPattern Expr546

• Pattern: APX-1 protein is detected first in the late 2-cell stage at the anterior periphery of P1. It is found in and EMS at the 4-cell stage. Later, it is seen faintly in P3.
• Primary Identifier: Expr546
• Remark: early embryo(author) = blastula embryo(curator).
• Subcellular Localization: APX-1 was mainly plasma membrane-associated, but punctate patterns below the membrane and in the cytoplasm. APX-1 is seen in the membrane where P1 contacts AB.p, and the punctate structures are present where P1 contacts AB.a and AB.p. In early 4-cell stage embryos, APX-1 staining is seen where P2 contacts AB.p and in punctate structures in P2 and in the cytoplasm of EMS.APX-1 is not detected in AB.a or AB.p. At the 12-cell stage, APX-1 is detected faintly in P3 cytoplasm only. Later, APX-1 appears in a few unidentified cells.

4 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
embryonic cell	EMS		WBbt:0006876
embryonic founder cell	Psub3	lineage name: P0.ppp	WBbt:0006875
embryonic founder cell	Psub1	lineage name: P0.p	WBbt:0006874
embryonic founder cell	Psub2	lineage name: P0.pp	WBbt:0006873

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000168	apx-1	K08D9.3	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