Protein Description

Gene Symbol EPHA4
Entrez ID 2043
Uniprot ID P54764
Description EPH receptor A4
Chromosomal Location chr2: 221,418,027-221,574,202
Ontology GO ID GO Term Definition Evidence

BP

GO:0007155

cell adhesion

The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.

IEA

BP

GO:0007628

adult walking behavior

The behavior of an adult relating to the progression of that organism along the ground by the process of lifting and setting down each leg.

IEA

BP

GO:0008045

motor neuron axon guidance

The process in which the migration of an axon growth cone of a motor neuron is directed to a specific target site in response to a combination of attractive and repulsive cues.

ISS

BP

GO:0008347

glial cell migration

The orderly movement of a glial cell, non-neuronal cells that provide support and nutrition, maintain homeostasis, form myelin, and participate in signal transmission in the nervous system.

IEA

BP

GO:0018108

peptidyl-tyrosine phosphorylation

The phosphorylation of peptidyl-tyrosine to form peptidyl-O4'-phospho-L-tyrosine.

IDA

BP

GO:0021957

corticospinal tract morphogenesis

Generation of a long process of a pyramidal cell, that carries efferent (outgoing) action potentials from the cell body in cerebral cortex layer V towards target cells in the gray matter of the spinal cord. This axonal process is a member of those that make up the corticospinal tract.

ISS

BP

GO:0043087

regulation of GTPase activity

Any process that modulates the rate of GTP hydrolysis by a GTPase.

ISS

BP

GO:0043507

positive regulation of JUN kinase activity

Any process that activates or increases the frequency, rate or extent of JUN kinase activity.

IEA

BP

GO:0046777

protein autophosphorylation

The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).

IDA

BP

GO:0048013

ephrin receptor signaling pathway

The series of molecular signals generated as a consequence of an ephrin receptor binding to an ephrin.

TAS

BP

GO:0048681

negative regulation of axon regeneration

Any process that stops, prevents, or reduces the frequency, rate or extent of axon regeneration.

ISS

BP

GO:0048710

regulation of astrocyte differentiation

Any process that modulates the frequency, rate or extent of astrocyte differentiation.

ISS

BP

GO:0050770

regulation of axonogenesis

Any process that modulates the frequency, rate or extent of axonogenesis, the generation of an axon, the long process of a neuron.

ISS

BP

GO:0050775

positive regulation of dendrite morphogenesis

Any process that activates or increases the frequency, rate or extent of dendrite morphogenesis.

IEA

BP

GO:0061001

regulation of dendritic spine morphogenesis

Any process that modulates the rate, frequency, or extent of dendritic spine morphogenesis, the process in which the anatomical structures of a dendritic spine are generated and organized. A dendritic spine is a protrusion from a dendrite and a specialized subcellular compartment involved in synaptic transmission.

ISS

BP

GO:0072178

nephric duct morphogenesis

The process in which the anatomical structures of the nephric duct are generated and organized. A nephric duct is a tube that drains a primitive kidney.

IEA

BP

GO:0097155

fasciculation of sensory neuron axon

The collection of sensory neuron axons into a bundle of rods, known as a fascicle.

ISS

BP

GO:0097156

fasciculation of motor neuron axon

The collection of motor neuron axons into a bundle of rods, known as a fascicle.

ISS

BP

GO:2001108

positive regulation of Rho guanyl-nucleotide exchange factor activity

Any process that activates or increases the frequency, rate or extent of Rho guanyl-nucleotide exchange factor activity.

IDA

CC

GO:0005737

cytoplasm

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

ISS

CC

GO:0005741

mitochondrial outer membrane

The outer, i.e. cytoplasm-facing, lipid bilayer of the mitochondrial envelope.

IEA

CC

GO:0005783

endoplasmic reticulum

The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).

IEA

CC

GO:0005794

Golgi apparatus

A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.

IEA

CC

GO:0005886

plasma membrane

The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

TAS

CC

GO:0005887

integral component of plasma membrane

The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

ISS

CC

GO:0009986

cell surface

The external part of the cell wall and/or plasma membrane.

IEA

CC

GO:0014069

postsynaptic density

The postsynaptic density is a region that lies adjacent to the cytoplasmic face of the postsynaptic membrane at an excitatory synapse. It forms an electron-dense disc that consists of a range of proteins with different functions, some of which contact the cytoplasmic domains of ion channels in the postsynaptic membrane. The proteins making up the disc include structural proteins linked to the actin cytoskeleton and signalling machinery, such as protein kinases and phosphatases.

IEA

CC

GO:0030054

cell junction

A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.

IEA

CC

GO:0030175

filopodium

Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft.

IEA

CC

GO:0030424

axon

The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.

ISS

CC

GO:0030425

dendrite

A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.

ISS

CC

GO:0031594

neuromuscular junction

The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.

IEA

CC

GO:0031901

early endosome membrane

The lipid bilayer surrounding an early endosome.

ISS

CC

GO:0043197

dendritic spine

A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including thin, stubby, mushroom, and branched, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.

IEA

CC

GO:0043204

perikaryon

The portion of the cell soma (cell body) that excludes the nucleus.

IEA

CC

GO:0043679

axon terminus

Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal button is a specialized region of it.

IEA

CC

GO:0044295

axonal growth cone

The migrating motile tip of a growing nerve cell axon.

IEA

CC

GO:0045211

postsynaptic membrane

A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.

IEA

MF

GO:0004672

protein kinase activity

Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.

IDA

MF

GO:0005004

GPI-linked ephrin receptor activity

Combining with a GPI-anchored ephrin to initiate a change in cell activity.

ISS

MF

GO:0005005

transmembrane-ephrin receptor activity

Combining with a transmembrane ephrin to initiate a change in cell activity.

ISS

MF

GO:0005515

protein binding

Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).

IPI

MF

GO:0005524

ATP binding

Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.

IEA

MF

GO:0042731

PH domain binding

Interacting selectively and non-covalently with a PH domain (pleckstrin homology) of a protein, a domain of about 100 residues that occurs in a wide range of proteins involved in intracellular signaling or as constituents of the cytoskeleton.

IPI

MF

GO:0042802

identical protein binding

Interacting selectively and non-covalently with an identical protein or proteins.

IEA

MF

GO:0046875

ephrin receptor binding

Interacting selectively and non-covalently with an ephrin receptor.

IEA

MF

GO:0097161

DH domain binding

Interacting selectively and non-covalently with a DH (Dbl homology) domain of a protein. The DH domain contains three structurally conserved regions separated by more variable regions. It is composed of 11 alpha helices that are folded into a flattened, elongated alpha-helix bundle in which two of the three conserved regions, conserved region 1 (CR1) and conserved region 3 (CR3), are exposed near the centre of one surface. CR1 and CR3, together with a part of alpha-6 and the DH/PH (pleckstrin homology) junction site, constitute the Rho GTPase interacting pocket.

IDA

Domain ID Description

IPR000719

Protein kinase domain

IPR001090

Ephrin receptor ligand binding domain

IPR001245

Serine-threonine/tyrosine-protein kinase, catalytic domain

IPR001426

Tyrosine-protein kinase, receptor class V, conserved site

IPR001660

Sterile alpha motif domain

IPR003961

Fibronectin type III

IPR008266

Tyrosine-protein kinase, active site

IPR008979

Galactose-binding domain-like

IPR011009

Protein kinase-like domain

IPR011641

Tyrosine-protein kinase ephrin type A/B receptor-like

IPR013761

Sterile alpha motif/pointed domain

IPR013783

Immunoglobulin-like fold

IPR016257

Ephrin receptor type-A /type-B

IPR017441

Protein kinase, ATP binding site

IPR020635

Tyrosine-protein kinase, catalytic domain

IPR027936

Ephrin receptor, transmembrane domain

IPR034270

Ephrin type-A receptor 4, ligand binding domain

Pathway ID Pathway Term Pathway Source

hsa04360

Axon guidance

KEGG

WP2431

Spinal Cord Injury

WikiPathways

WP2854

Gene regulatory network modelling somitogenesis

WikiPathways

h_ephA4Pathway

Eph Kinases and ephrins support platelet aggregation

BioCarta

No diseases found.

Tissue Cell Type

cerebral cortex

neuropil

No databases found.

Pubmed ID Author Year Title

22617121

Ouandaogo et al.

2012

Differences in transcriptomic profiles of human cumulus cells isolated from oocytes at GV, MI and MII stages after in vivo andin vitro oocyte maturation

22951915

Haozi et al.

2012

Altered gene expression profile in cumulus cells of mature MII oocytes from patients with polycystic ovary syndrome

Gene Symbol Entrez ID Uniprot ID Score

HSP90AB1

3326

P08238

0.49

EFNA3

1944

P52797

0.52

EFNA4

1945

P52798

0.52

EFNB2

1948

P52799

0.52

EPHA4

2043

P54764

0.59

ANAPC2

29882

Q9UJX6

0.63

FZR1

51343

Q9UM11

0.63

FGFR1

2260

P11362

0.65

FGFR3

2261

P22607

0.65

FGFR2

2263

P21802

0.65

EFNA1

1942

P20827

0.84

FYN

2534

P06241

0.84

EFNA5

1946

P52803

0.52

FGFR4

2264

P22455

0.52

GNAT2

2780

P19087

0.63

GNAZ

2781

P19086

0.63

HLA-DPA1

3113

P20036

0.63

HSP90AA1

3320

P07900

0.63

RYK

6259

P34925

0.63

VHL

7428

P40337

0.63

TSPAN3

10099

O60637

0.63

RIPK3

11035

Q9Y572

0.63

TBC1D22A

25771

Q8WUA7

0.63

GPN3

51184

Q9UHW5

0.63

CEACAM21

90273

Q3KPI0

0.63

TUBB2B

347733

Q9BVA1

0.63

IKBKG

8517

Q9Y6K9

0.68

SRC

6714

P12931

0.75

ARHGEF15

22899

O94989

0.83

EFNB3

1949

Q15768

0.86

NGEF

25791

Q8N5V2

0.86