Neurotrophin-4 (NT-4), also known as neurotrophin-5 (NT-5), is a
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residue (biochemistry), residues. Proteins perform a vast array of functions within organisms, including Enzyme catalysis, catalysing metab ...
that in humans is encoded by the ''NTF4''
gene
In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protei ...
.
It is a
neurotrophic factor
Neurotrophic factors (NTFs) are a family of biomolecules – nearly all of which are peptides or small proteins – that support the growth, survival, and differentiation of both developing and mature neurons. Most NTFs exert their trop ...
that signals predominantly through the
TrkB
Tropomyosin receptor kinase B (TrkB), also known as tyrosine receptor kinase B, or BDNF/NT-3 growth factors receptor or neurotrophic tyrosine kinase, receptor, type 2 is a protein that in humans is encoded by the ''NTRK2'' gene. TrkB is a recept ...
receptor tyrosine kinase
Receptor tyrosine kinases (RTKs) are the high-affinity cell surface receptors for many polypeptide growth factors, cytokines, and hormones. Of the 90 unique tyrosine kinase genes identified in the human genome, 58 encode receptor tyrosine kinas ...
. NT-4 was first discovered and isolated from xenopus and viper in the year 1991 by Finn Hallbook ''et.al''
See also
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Tropomyosin receptor kinase B § Agonists
References
Further reading
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External links
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Neurotrophic factors
Peptide hormones
Growth factors
Developmental neuroscience
Proteins
TrkB agonists
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