What does EPHA2 stand for?

EPH receptor A2

What are ephrin ligands?

Ephrin-A ligands are GPI-anchored to the plasma membrane and signal through co-receptors that have not yet been fully defined. Ephrin-B ligands are transmembrane and are linked to an intracellular PDZ-binding motif via a linker containing five tyrosine resides for autophosphorylation.

Is ephrin membrane bound?

Since ephrin ligands (ephrins) and Eph receptors (Ephs) are both membrane-bound proteins, binding and activation of Eph/ephrin intracellular signaling pathways can only occur via direct cell–cell interaction. …

Are ephrins transcription factors?

In many contexts in which Eph receptor and ephrin signaling has been studied, it is reasonable to assume that they are effectors of morphogenesis expressed downstream of transcription factors that regulate cell identity.

How are ephrin Bs are attached to the membrane?

Ephrin-As are anchored to the membrane by a glycosylphosphatidylinositol (GPI) linkage and lack a cytoplasmic domain, while ephrin-Bs are attached to the membrane by a single transmembrane domain that contains a short cytoplasmic PDZ-binding motif.

How many ephrin ligand genes are there in mammals and what subclasses are there?

Of the eight ephrins that have been identified in humans there are five known ephrin-A ligands (ephrin-A1-5) that interact with nine EphAs (EphA1-8 and EphA10) and three ephrin-B ligands (ephrin-B1-3) that interact with five EphBs (EphB1-4 and EphB6).

How many Eph receptor genes are there in mammals?

Of the 16 Eph receptors (see above) that have been identified in animals, humans are known to express nine EphAs (EphA1-8 and EphA10) and five EphBs (EphB1-4 and EphB6).

How many ephrin ligand genes are there in mammals?

What is Eph complex?

The Eph receptors are the largest of the RTK families. Like other RTKs, they transduce signals from the cell exterior to the interior through ligand-induced activation of their kinase domain. Eph receptor–ephrin complexes emanate bidirectional signals that affect both receptor- and ephrin-expressing cells.

What type of molecules are Eph receptors?

The Eph receptors are a large family of receptor tyrosine kinases. Their kinase activity and downstream signaling ability are stimulated by the binding of cell surface-associated ligands, the ephrins.

How many Eph receptor genes are there in mammals and what subclasses are there?

Based on their amino acid sequence similarities, both Eph receptors and ephrins are grouped into two subclasses: A- and B-type. There are eight EphA receptors (EphA1–EphA8) and six EphB receptors (EphB1–EphB6).

What do Eph receptors do?

The Eph receptors are the largest of the RTK families. Like other RTKs, they transduce signals from the cell exterior to the interior through ligand-induced activation of their kinase domain. However, the Eph receptors also have distinctive features.

Is EphA2 a potential target for malignant tumors?

In particular, we focused on EphA2’s potential as a target for cancer treatment to provide insights into the application of EphA2 targeting in anticancer strategies. Overall, EphA2 represents a potential target for treating malignant tumors. Ephrin receptors (Eph) represent the most important class of receptor tyrosine kinases (RTKs) [ 1 ].

What is EphA2 receptor tyrosine kinase?

Oncogenic functions and therapeutic targeting of EphA2 in cancer More than 25 years of research and preclinical validation have defined EphA2 receptor tyrosine kinase as a promising molecular target for clinical translation in cancer treatment.

What is the function of EphA2?

The normal functions of EphA2 include embryonic lens and kidney development, mammary epithelial branching morphogenesis, and bone homeostasis [ 4 ]. In addition to these roles, EphA2 is a key regulator of tumorigenesis and cancer progression (Fig. 1C ).

How does LMW-PTP affect EphA2 levels in cancer?

Increased LMW-PTP expression functions to reduce EphA2 phosphotyrosine content, contributing to elevated EphA2 levels in cancer cells. Despite EphA2 overexpression in cancer, phosphorylated EphA2 is found in lower amounts in cancer cells in comparison with non-transformed epithelial cells [ 42 ].