1. Apoptosis
  2. FKBP


FKBPs (FK506-binding proteins) belong to a distinct class of immunophilins that interact with immunosuppressants, such as FK506 and Rapamycin. FKBPs use their peptidyl-prolyl isomerase (PPIase) activity to catalyze the cis-trans conversion of prolyl bonds in proteins during protein-folding events. FKBPs also act as a unique group of chaperones. FKBPs are involved in several biochemical processes including protein folding, receptor signaling, protein trafficking and transcription. FKBP family proteins play important functional roles in the T-cell activation, when complexed with their ligands.

FKBPs, through interactions with steroid hormone receptors, kinases, or other cellular factors, play important roles in various physiological processes and, more interestingly, in pathological processes in mammals. Mammalian FKBPs can be divided into four groups: cytoplasmic, TPR domain, endoplasmic reticulum (ER) or secretory pathway and nuclear. The cytoplasmic FKBP isoforms FKBP12 and 12.6 and the nuclear FKBP25 and 133 contain a single PPIase domain. FKBP36, 38, 51 and 52 contain multiple TPR domains. The ER FKBPs: FKBP13, 19, 22, 23, 60 and 65 all contain an N-terminal ER signal peptide.

FKBP Related Products (32):

Cat. No. Product Name Effect Purity
  • HY-16046
    Rimiducid Activator 99.81%
    Rimiducid (AP1903) is a dimerizer agent that acts by cross-linking the FKBP domains. Rimiducid (AP1903) dimerizes the Caspase 9 suicide switch and rapidly induces apoptosis.
  • HY-13756
    Tacrolimus (FK506), a macrocyclic lactone, binds to FK506 binding protein (FKBP) to form a complex. Tacrolimus inhibits calcineurin phosphatase, which inhibits T-lymphocyte signal transduction and IL-2 transcription. Immunosuppressive properties[1].
  • HY-10218
    Everolimus (RAD001) is a Rapamycin (HY-10219) derivative and a potent, selective and orally active mTOR1 inhibitor. Everolimus binds to FKBP-12 to generate an immunosuppressive complex. Everolimus inhibits tumor cells proliferation and induces cell apoptosis and autophagy. Everolimus has potent immunosuppressive and anticancer activities[1][2].
  • HY-10219
    Rapamycin (Sirolimus; AY 22989) is a potent and specific mTOR inhibitor with an IC50 of 0.1 nM in HEK293 cells. Rapamycin binds to FKBP12 and specifically acts as an allosteric inhibitor of mTORC1[1]. Rapamycin is an autophagy activator, an immunosuppressant[2].
  • HY-112210
    Shield-1 Modulator 99.46%
    Shield-1 (Shld1) is a specific, cell-permeant and high-affinity ligand of FK506-binding protein-12 (FKBP), and reverses the instability by binding to mutated FKBP (mtFKBP), allowing conditional expression of mtFKBP-fused proteins. Shield-1 can stabilize proteins tagged with a mutated FKBP12-derived destabilization domain (DD)[1][2][3].
  • HY-10219S
    Rapamycin-d3 is the deuterium labeled Rapamycin. Rapamycin is a potent and specific mTOR inhibitor with an IC50of 0.1 nM in HEK293 cells. Rapamycin binds to FKBP12 and specifically acts as an allosteric inhibitor of mTORC1[1]. Rapamycin is an autophagy activator, an immunosuppressant[2].
  • HY-114434
    AP1867 99.43%
    AP1867 is a synthetic FKBP12F36V-directed ligand[1].
  • HY-13557
    Ascomycin Inhibitor
    Ascomycin (Immunomycin; FR-900520; FK520) is an ethyl analog of Tacrolimus (FK506) with strong immunosuppressant properties. Ascomycin is also a macrocyclic polyketide antibiotic with multiple biological activities such as anti-malarial, anti-fungal and anti-spasmodic. Ascomycin prevents graft rejection and has potential for varying skin ailments research[1][2].
  • HY-13992
    AP20187 Modulator 99.88%
    AP20187 (B/B Homodimerizer) is a cell-permeable ligand used to dimerize FK506-binding protein (FKBP) fusion proteins and initiate biological signaling cascades and gene expression or disrupt protein-protein interactions.
  • HY-114421
    FKBP12 PROTAC dTAG-13 Inhibitor 99.52%
    FKBP12 PROTAC dTAG-13 (dTAG-13), a PROTAC-based heterobifunctional degrader, is a selective degrader of FKBP12F36V with expression of FKBP12F36V in-frame with a protein of interest. FKBP12 PROTAC dTAG-13 effectively engages FKBP12F36V and CRBN, thereby selectively degrading FKBP12F36V[1].
  • HY-145514B
    dTAGV-1-NEG TFA is a diastereomer and as a heterobifunctional negative control of dTAGV-1. dTAGV-1-NEG TFA is an FKBP12F36V-selective degrader[1].
  • HY-114872
    SLF 98.60%
    SLF is a synthetic ligand for FK506-binding protein (FKBP) with an affinity of 3.1 μM for FKBP51 and an IC50 of 2.6 μM for FKBP12. SLF can be used in the synthesis of PROTAC[1][2][3].
  • HY-129610
    KB02-SLF Inhibitor 99.25%
    KB02-SLF is a PROTAC-based nuclear FKBP12 degrader (molecular glue). KB02-SLF promotes nuclear FKBP12 degradation by covalently modifying DCAF16 (E3 ligase) and can improve the durability of protein degradation in biological systems. SLF binds ubiquitin E3 ligase ligand KB02 via a linker to form KB02-SLF[1].
  • HY-124619
    GPI-1046 99.76%
    GPI-1046 is a immunophilin ligand without antibiotic action and attenuates ethanol intake in part through the upregulation of glutamate transporter 1 (GLT1) in PFC and NAc-core. GPI-1046 is an analog of FK506, which is an immunophilin ligand that has been shown neuroprotective effects in neurodegenerative disease models[1]. GPI-1046 readily crosses the blood-brain barrier and promotes the regeneration of dopamine (DA) cells in the CNS in association with functional recovery in rodent models[2]. GPI-1046 improves HIV-associated injury of peripheral nerves[3].
  • HY-123454
    SKF1 Inhibitor
    SKF1 is a FK506 suppressor, causes a mitochondrially induced death in low salt, concomitant with the release of reactive oxygen species (ROS)[1].
  • HY-102079
    SAFit1 Inhibitor
    SAFit1 is a FK506 binding protein 51 (FKBP51)-specific inhibitor with a Ki of 4±0.3 nM[1][2].
  • HY-130835
    FKBP12 PROTAC RC32 (RC32) is a potent FKBP12 degrader based on PROTAC technology. FKBP12 PROTAC RC32 contains conjugation of Rapamycin (HY-10219) and a ligand for an Cereblon E3 ubiquitin ligase (Pomalidomide; HY-10984)[1].
  • HY-129363
    AP1867-3-(aminoethoxy) 99.10%
    AP1867-3-(aminoethoxy), the AP1867 based moiety, is a synthetic ligand for FKBP. AP1867-3-(aminoethoxy) can be used in the synthesis of PROTAC FKBP12 F36V degrader[1].
  • HY-107452
    SLF-amido-C2-COOH 99.82%
    SLF-amido-C2-COOH (PROTAC FKBP12-binding moiety 1) is a synthetic ligand for FKBP (SLF). SLF-amido-C2-COOH (PROTAC FKBP12-binding moiety 1) can be used in the synthesis of PROTACs[1].
  • HY-106345
    ILS-920 is a nonimmunosuppressive Rapamycin analog with reduced immunosuppressive activity and potent neuroprotective activity. ILS-920 binds selectively to the immunophilin FKBP52 and to the β1-subunit of L-type voltage-gated calcium channels (VGCC). ILS-920 shows 200-fold selectivity for FKBP52 versus FKBP12[1].