What type of protein is gurken?
What type of protein is gurken?
TGF-alpha-like protein
“Gurken, a TGF-alpha-like protein involved in axis determination in Drosophila, directly binds to the EGF-receptor homolog Egfr.” Shmueli A., Cohen-Gazala O., Neuman-Silberberg F.S.
Is gurken a maternal gene?
Mutations of the Gurken gene in the mother (and thus in the oocyte) cause the ventralization of both the embryo and its surrounding follicle cells. Mutations of this gene in the mother (and thus in the oocyte) cause the ventralization of both the embryo and its surrounding follicle cells.
What does dorsal protein do?
Dorsal (DL) is the focal protein in the development of dorsoventral polarity in the developing fly. It is a transcription factor, activating and repressing zygotic genes responsible for differentiation along the dorsoventral axis during the early stages of development.
Is dorsal a maternal effect gene?
All are maternal effect genes, function primarily or exclusively in establishment of the D/V axis, and they establish a gradient of a morphogen called Dorsal (Dl).
What do segment polarity genes do?
Segment polarity genes are required for patterning within each embryonic segment and mutations in genes involved with segment polarity lead to the duplication or deletion of zones within segments.
Is Spatzle a maternal effect gene?
spätzle is a maternal effect gene required in the signal transduction pathway that establishes the dorsal-ventral pattern of the Drosophila embryo.
What does caudal protein do?
The Caudal protein is critical in specifying the posterior domains of the embryo, and it activates the genes responsible for the invagination of the hindgut (Wu and Lengyel 1998).
What is the difference between maternal effect and maternal inheritance?
Those phenotypes that are controlled by nuclear factors found in the cytoplasm of the female are said to express a maternal effect. Those phenotypes controlled by organelle genes exhibit maternal inheritance. The coiling phenotype that is seen in the offspring is controlled by the genotype of the mother.
Is there a difference between maternal effect and cytoplasmic inheritance?
The key difference between cytoplasmic inheritance and genetic maternal effect is that cytoplasmic inheritance occurs due the genetic information stored in genes of some organelles such as mitochondria and chloroplasts present in the cytoplasm while genetic maternal effect occurs due to the mRNA and proteins received …