1. Signaling Pathways
  2. PROTAC
  3. PROTAC Linkers

PROTAC Linkers

PROTACs (Proteolysis Targeting Chimeric Molecules) are heterobifunctional protein degraders and promising targeted therapeutics candidates for cancer. The PROTAC linker connects two functional motifs of a PROTAC, a target protein binder and an E3 ligase recruiter.

The linker plays an important role in a PROTAC. The features of the linker (type, length, attachment position) can affect the formation of ligase:PROTAC:target ternary complex, resulting in influencing the efficient ubiquitination of the target protein and its ultimate degradation. The optimal lengths of the PROTAC linkers are reported varying from 12-carbon to over 20-carbon, and the commonly used linkers in the development of PROTACs are PEGs, Alkyl-Chain and Alkyl/ether.

PROTAC Linkers Isoform Specific Products:

  • PEGs

  • Alkyl-Chain

  • Alkyl/ether

PROTAC Linkers Related Products (2792):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-118411
    5-Ethynyl-2'-deoxyuridine 61135-33-9 99.68%
    5-Ethynyl-2'-deoxyuridine (EdU), a thymidine analogue, is incorporated into cellular DNA during DNA replication and the subsequent reaction of EdU with a fluorescent azide in a “Click” reaction. EdU staining is a fast, sensitive and reproducible method to study cell proliferation. 5-Ethynyl-2'-deoxyuridine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.
    5-Ethynyl-2'-deoxyuridine
  • HY-W008574
    TGN-020 51987-99-6 98.03%
    TGN-020 is a selective Aquaporin 4 (AQP4) inhibitor with an IC50 of 3.1 μM. TGN-020 is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.TGN-020 alleviates edema and inhibits glial scar formation after spinal cord compression injury in rats.
    TGN-020
  • HY-136159
    3-Mercaptopropionic acid NHS ester 117235-10-6
    3-Mercaptopropanyl-N-hydroxysuccinimide ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs.
    3-Mercaptopropionic acid NHS ester
  • HY-W016735
    Azido-PEG3-alcohol 86520-52-7 ≥98.0%
    Azido-PEG3-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.
    Azido-PEG3-alcohol
  • HY-W008005
    Amino-PEG4-alcohol 86770-74-3
    Amino-PEG4-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Amino-PEG4-alcohol is also a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs).
    Amino-PEG4-alcohol
  • HY-W007803
    Boc-NH-C4-Br 164365-88-2 ≥98.0%
    Boc-NH-C4-Br is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.
    Boc-NH-C4-Br
  • HY-I0781
    Boc-Hyp-OH 13726-69-7
    Boc-Hyp-OH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-Hyp-OH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2]
    Boc-Hyp-OH
  • HY-W045598
    Boc-C16-COOH 843666-40-0
    Boc-C16-COOH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-C16-COOH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs
    Boc-C16-COOH
  • HY-140346A
    L-Azidohomoalanine hydrochloride 942518-29-8 99.76%
    L-Azidohomoalanine hydrochloride is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.
    L-Azidohomoalanine hydrochloride
  • HY-30105
    N-Boc-piperazine 57260-71-6 99.96%
    N-Boc-piperazine is a Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTAC PD-1/PD-L1 degrader-1 (HY-131183).
    N-Boc-piperazine
  • HY-W007713
    Fmoc-8-amino-3,6-dioxaoctanoic acid 166108-71-0 99.45%
    Fmoc-8-amino-3,6-dioxaoctanoic acid (Fmoc-NH-PEG2-CH2COOH) is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-8-amino-3,6-dioxaoctanoic acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Fmoc-8-amino-3,6-dioxaoctanoic acid
  • HY-22335
    Amino-PEG4-C2-amine 68960-97-4 ≥98.0%
    Amino-PEG4-C2-amine is a PEG-based (4 units) PROTAC linker can be used in the synthesis of PROTACs.
    Amino-PEG4-C2-amine
  • HY-23408
    Tos-PEG3 77544-68-4
    Tos-PEG3 is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Tos-PEG3 (structure 1) can be used for the synthesis of 3'-aminooxy oligonucleotides solid supports.
    Tos-PEG3
  • HY-130324
    Azido-PEG7-amine 1333154-77-0
    Azido-PEG7-amine is a non-cleavable 7 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG7-amine is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Azido-PEG7-amine
  • HY-W000434
    Fmoc-NH-PEG4-CH2CH2COOH 557756-85-1 99.92%
    Fmoc-NH-PEG4-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG4-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    Fmoc-NH-PEG4-CH2CH2COOH
  • HY-112496
    Cl-C6-PEG4-O-CH2COOH 1799506-30-1
    Cl-C6-PEG4-O-CH2COOH (PROTAC Linker 4) is a PEG-based PROTAC linker can be used in the synthesis of chloroalkane-containing PROTACs (HaloPROTACs).
    Cl-C6-PEG4-O-CH2COOH
  • HY-69220
    7-Octynoic acid 10297-09-3 ≥98.0%
    7-Octynoic acid (compound 42) is a PROTAC linker and can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
    7-Octynoic acid
  • HY-W046471
    N-Boc-PEG4-bromide 1076199-21-7 ≥98.0%
    N-Boc-PEG4-bromide is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG4-bromide is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs).
    N-Boc-PEG4-bromide
  • HY-108370
    N33-TEG-COOH 201467-81-4 98.08%
    N33-TEG-COOH (N3-TEG-COOH) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.
    N33-TEG-COOH
  • HY-140459
    2-((Azido-PEG8-carbamoyl)methoxy)acetic acid 846549-37-9
    2-((Azido-PEG8-carbamoyl)methoxy)acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
    2-((Azido-PEG8-carbamoyl)methoxy)acetic acid
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