1. Signaling Pathways
  2. Cell Cycle/DNA Damage
  3. CDK
  4. CDK12 Isoform

CDK12

Cyclin-dependent kinase 12 (CDK12) belongs to the cyclin-dependent kinase (CDK) family of serine/threonine protein kinases that regulate transcriptional and post-transcriptional processes, thereby modulating multiple cellular functions. Early studies characterised CDK12 as a transcriptional CDK that complexes with cyclin K to mediate gene transcription by phosphorylating RNA polymerase II. CDK12 has been demonstrated to specifically upregulate the expression of genes involved in response to DNA damage, stress and heat shock. More recent studies have implicated CDK12 in regulating mRNA splicing, 3' end processing, pre-replication complex assembly and genomic stability during embryonic development. Genomic alterations in CDK12 have been detected in oesophageal, stomach, breast, endometrial, uterine, ovarian, bladder, colorectal and pancreatic cancers, ranging from 5% to 15% of sequenced cases. An increasing number of studies point to CDK12 inhibition as an effective strategy to inhibit tumour growth, and synthetic lethal interactions have been described with MYC, EWS/FLI and PARP/CHK1 inhibition.  CDK12 and the highly homologous protein CDK13 are both activated upon binding to cyclin K to regulate transcription through phosphorylating Ser2 residues located on the C-terminal domain (CTD) of RNA-polymerase II (RNA-Pol2) which contains 52 repeats of the YSPTSPS motif.

CDK12 Related Products (20):

Cat. No. Product Name Effect Purity
  • HY-80013
    THZ1
    Inhibitor 99.84%
    THZ1 is a selective and potent covalent CDK7 inhibitor with an IC50 of 3.2 nM. THZ1 also inhibits the closely related kinases CDK12 and CDK13 and downregulates MYC expression.
  • HY-103618
    THZ531
    Inhibitor 99.86%
    THZ531 is a selective and covalent inhibitor of both CDK12 and CDK13 with IC50s of 158 nM and 69 nM, respectively.
  • HY-130250
    SR-4835
    Inhibitor 99.73%
    SR-4835 is a potent, highly selective and ATP competitive dual inhibitor of CDK12/CDK13 (CDK12: IC50=99 nM, Kd=98 nM; CDK13: Kd=4.9 nM). SR-4835 acts in synergy with DNA-damaging chemotherapy and PARP inhibitors and provokes triple-negative breast cancer (TNBC) cell death.
  • HY-138293
    SY-5609
    Inhibitor 99.66%
    SY-5609 (CDK7-IN-3) is an orally active, highly selective, noncovalent CDK7 inhibitor with a KD of 0.065 nM. SY-5609 shows poor inhibition on CDK2 (Ki=2600 nM), CDK9 (Ki=960 nM), CDK12 (Ki=870 nM). SY-5609 induces apoptosis in tumor cells and has antitumor activity.
  • HY-139039
    BSJ-4-116
    Inhibitor 98.73%
    BSJ-4-116 is a PROTAC connected by ligands for Cereblon and CDK. BSJ-4-116 is a highly potent and selective CDK12 degrader (PROTAC) with an IC50 of 6 nM. BSJ-4-116 downregulates DDR genes through a premature termination of transcription, primarily through increasing poly(adenylation). BSJ-4-116 exhibits potent antiproliferative effects, alone and in combination with the poly(ADP-ribose) polymerase inhibitor Olaparib (HY-10162).
  • HY-155787
    SHR5428
    Inhibitor
    SHR5428 is a potent, orally active, selective and noncovalent inhibitor of CDK7 with highly potent CDK7 enzymatic activity (IC50=2.3 nM). SHR5428 inhibits triple negative breast cancer cellular activity on MDA-MB-468 cell (IC50=6.6 nM).
  • HY-112261
    CDK12-IN-3
    Inhibitor 99.57%
    CDK12-IN-3 is a potent and selective CDK12 inhibitor with an IC50 of 491 nM in enzymatic assay.
  • HY-80013A
    THZ1 Hydrochloride
    Inhibitor 98.78%
    THZ1 Hydrochloride is a selective and potent covalent CDK7 inhibitor with an IC50 of 3.2 nM. THZ1 Hydrochloride also inhibits the closely related kinases CDK12 and CDK13 and downregulates MYC expression.
  • HY-112626
    CDK12-IN-2
    Inhibitor 99.44%
    CDK12-IN-2 is a potent, selective and nanomolar CDK12 inhibitor (IC50=52 nM) with good physicochemical properties. CDK12-IN-2 is also a strong CDK13 inhibitor due to CDK13 is the closest homologue of CDK12. CDK12-IN-2 shows excellent kinase selectivity for CDK12 over CDK2, 9, 8, and 7. CDK12-IN-2 inhibits the phosphorylation of Ser2 in the C-terminal domain of RNA polymerase II. CDK12-IN-2 can be used an excellent chemical probe for functional studies of CDK12.
  • HY-117203A
    CDK12-IN-E9
    Inhibitor 99.97%
    CDK12-IN-E9 is a potent and selective covalent CDK12 inhibitor and a non-covalent CDK9 inhibitor, while avoiding ABC transporter-mediated efflux. CDK12-IN-E9 has weak binding ability to CDK7/CyclinH complex with an IC50> 1 μM.
  • HY-151110A
    PROTAC CDK12/13 Degrader-1 TFA
    Degrader 98.37%
    PROTAC CDK12/13 Degrader-1 (7f) TFA is a highly selective cell cycle protein-dependent kinase CDK12/CDK13 dual degrader with the DC50 values of 2.2 nM and 2.1 nM, respectively. PROTAC CDK12/13 Degrader-1 TFA has anti-proliferative activity and can be used in breast cancer research.
  • HY-145072
    BSJ-01-175
    Inhibitor 99.45%
    BSJ-01-175 is a potent and selective CDK12/13 covalent inhibitor. BSJ-01-175 demonstrates exquisite selectivity, potent inhibition of RNA polymerase II phosphorylation, and downregulation of CDK12-targeted genes in cancer cells.
  • HY-139980
    CDK9-IN-13
    Inhibitor 99.22%
    CDK9-IN-13 (compound 38) is potent and selective CDK9 inhibitor, with an IC50 of <3 nM. CDK9-IN-13 exhibits short half-lives in rodents.
  • HY-151110
    PROTAC CDK12/13 Degrader-1
    Degrader
    PROTAC CDK12/13 Degrader-1 (7f) is a highly selective cell cycle protein-dependent kinase CDK12/CDK13 dual degrader with the DC50 values of 2.2 nM and 2.1 nM, respectively. PROTAC CDK12/13 Degrader-1 has anti-proliferative activity and can be used in breast cancer research.
  • HY-139328
    CDK12-IN-5
    Inhibitor 99.01%
    CDK12-IN-5, a pyrazolotriazine, is a potent CDK12 inhibitor with an IC50 of 23.9 nM at high ATP (2 mM). CDK12-IN-5 has no effect on CDK2/Cyclin E (IC50=173 μM) and CDK9/Cyclin T1 (IC50=127 μM) at high ATP (2 mM) (WO2021116178A1).
  • HY-139329
    CDK12-IN-6
    Inhibitor
    CDK12-IN-6, a pyrazolotriazine, is a potent CDK12 inhibitor with an IC50 of 1.19 μM at high ATP (2 mM). CDK12-IN-6 has no effect on CDK2/Cyclin E (IC50>20 μM) and CDK9/Cyclin T1 (IC50>20 μM) at high ATP (2 mM) (WO2021116178A1).
  • HY-142696
    CDK6/PIM1-IN-1
    Inhibitor
    CDK6/PIM1-IN-1 is a potent and balanced dual CDK6/PIM1 inhibitor with IC50 values of 39 and 88 nM, respectively. CDK6/PIM1-IN-1 inhibits CDK4 (IC50=3.6 nM). CDK6/PIM1-IN-1 significantly inhibits acute myeloid leukemia (AML) cell proliferation, arrest cell cycle at the G1 phase, and promote cell apoptosis. CDK6/PIM1-IN-1 exhibits potent anti-AML activity.
  • HY-151878
    CDK7-IN-20
    Inhibitor
    CDK7-IN-20 is a potent, selective and irreversible CDK7 (CDK) inhibitor with an IC50 value of 4 nM. CDK7-IN-20 displays >206-fold selectivity for CDK7 over CDK1, CDK2, CDK3, CDK5, CDK6, CDK9 and CDK12 . CDK7-IN-20 has the potential for autosomal dominant polycystic kidney disease (ADPKD) research.
  • HY-139327
    CDK12-IN-4
    Inhibitor
    CDK12-IN-4, a pyrazolotriazine, is a potent CDK12 inhibitor with an IC50 of 0.641 μM at high ATP (2 mM). CDK12-IN-4 has no effect on CDK2/Cyclin E (IC50>20 μM) and CDK9/Cyclin T1 (IC50>20 μM) at high ATP (2 mM) (WO2021116178A1).
  • HY-150641
    CDK-IN-9
    Inhibitor
    CDK-IN-9 (compound 24) is a potent CDK inhibitor, also as a molecular glue inducing an interaction between CDK12 and DDB1, with an IC50 values of 4 nM for CDK2/E. CDK-IN-9 leads to polyubiquitination of cyclin K and its subsequent degradation. CDK-IN-9 induce apoptosis through dephosphorylation of retinoblastoma protein and RNA polymerase II.