FK506-binding protein 3 also known as FKBP25 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 ''FKBP3''
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 ...
.
Function
The protein encoded by this gene is a member of the
immunophilin
In molecular biology, immunophilins are endogenous cytosolic peptidyl-prolyl isomerases (PPI) that catalyze the interconversion between the cis and trans isomers of peptide bonds containing the amino acid proline (Pro). They are chaperone molec ...
protein family, which play a role in immunoregulation and basic cellular processes involving
protein folding
Protein folding is the physical process by which a protein, after Protein biosynthesis, synthesis by a ribosome as a linear chain of Amino acid, amino acids, changes from an unstable random coil into a more ordered protein tertiary structure, t ...
and trafficking. This encoded protein is a
cis-trans prolyl isomerase that binds the immunosuppressants FK506 and
rapamycin
Sirolimus, also known as rapamycin and sold under the brand name Rapamune among others, is a macrolide compound that is used to coat coronary stents, prevent organ rejection, organ transplant rejection, treat a rare lung disease called lymphang ...
. It has a higher affinity for rapamycin than for FK506 and thus may be an important target molecule for immunosuppression by rapamycin.
Interactions
FKBP3 has been shown to
interact with
YY1,
HDAC1
Histone deacetylase 1 (HDAC1) is an enzyme that in humans is encoded by the ''HDAC1'' gene.
Function
Histone acetylation and deacetylation, catalyzed by multisubunit complexes, play a key role in the regulation of eukaryotic gene expression. ...
,
[ ]Histone deacetylase 2
Histone deacetylase 2 (HDAC2) is an enzyme that in humans is encoded by the ''HDAC2'' gene. It belongs to the histone deacetylase class of enzymes responsible for the removal of acetyl groups from lysine residues at the N-terminal region of the c ...
,[ ]DNA
Deoxyribonucleic acid (; DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of al ...
,
References
Further reading
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External links
PDBe-KB
provides an overview of all the structure information available in the PDB for Human Peptidyl-prolyl cis-trans isomerase FKBP3
PDBe-KB
provides an overview of all the structure information available in the PDB for Mouse Peptidyl-prolyl cis-trans isomerase FKBP3
EC 5.2.1
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