Gene Networks Database

Strongylocentrotus purpuratus Genes in Development: Structural genes

YP-160

Function

This gene codes for the 160-kD major yolk glycoprotein.
The chemical composition of the yolk platelet (YP) is not entirely static in the course of embryonic development only because of the proteolytic cleavage of this protein (Mallya et al., 1992).

Protein

YP-160 is the major 160-kD yolk glycoprotein.
This protein undergoes limited, step-wise proteolytic cleavage during early development to the glycoproteins of lower mass (115, 108 and 90 kD) (Mallya et al., 1992).

Subcellular location

Expression Pattern

Protein level

Temporal accumulation

Method: Enzyme assays
Reference: Mallya et al., 1992

Stage
Egg
12 hr blastula
18 hr blastula
Prism
Pluteus
Level
+
+
+
-
-

The YP-160 glycoprotein is present in the egg, its proteolysis is initiated at the early blastula stage and is essentially complete by the 18 hr.

Spatial localization

Method: Immunoelectron microscopy
Reference: Mallya et al., 1992

Stage
Egg
12 hr blastula
18 hr blastula
Prism
Pluteus
Tissue
YP
YP
YP
-
-

Sequences

Regulatory Regions

Regulatory Connections

Upstream Genes

YP-160

Downstream Genes

Evolutionary homologues

Links

Bibliography
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