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WormBase Tree Display for Expr_pattern: Expr713

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Name Class

Expr713Expression_ofGeneWBGene00004078
Reflects_endogenous_expression_ofWBGene00004078
Expression_dataLife_stageWBls:0000038
WBls:0000041
WBls:0000005
Anatomy_termWBbt:0004015
WBbt:0005175
WBbt:0006773
WBbt:0006873
WBbt:0006874
WBbt:0006875
WBbt:0006876
GO_termGO:0005737
Subcellular_localizationPOS-1 is cytoplasmic.
TypeAntibodyAntisera raised against a fusion protein containing N-terminal region of POS-1 and against a synthetic peptides corresponding to regions that are divergent in sequence from MEX-1 protein.
PatternFirst detected at low levels in some 1-cell embryos. At the 2-cell stage higher level of expression detected predominantly in germline blastomere P1. Distribution of POS-1 protein is similar to distribution of mRNA after 2-cell stage when P1 divides. POS-1 protein is initially present at equal levels in both P1 daughters but persists at higher level only in germline daughter P2. After the division of the final germline blastomere P4, POS-1 is not detected in any cell. POS-1 shows strong, specific staining of granules within the cytoplasm of germline blastomeres. In double labeling experiments with an Ab specific for P granules determined that POS-1 is associated with cytoplasmic and perinuclear P granules. Although P granules is present in germline at all stages of embryonic and postembryonic development, POS-1 staining is only seen in P granules in germline blastomeres, P1, P2, P3 and P4. POS-1 gene is expressed maternally, POS-1 is cytoplasmic, P granule associated protein is present predominantly in germline blastomeres during early embryogenesis.
PictureWBPicture0000008000
RemarkThis information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).
ReferenceWBPaper00003382
Antibody_infoWBAntibody00000207
WBAntibody00000208