errγ

PROTAC ERRα ligand 1 is an estrogen-related receptor α (ERRα) antagonist with IC50 values of 0.04 μM for ERRα and 2.8 μM for ERRγ.

Vepdegestrant (ARV-471) is an estrogen receptor (ER) α PROTAC molecule that degrades ER in ER-positive breast cancer cell lines with a DC50 of approximately 1 nM. It can reduce the expression of classically regulated ER target genes and inhibit the growth of ER-dependent cell lines (including those expressing ESR1 variants, such as Y537S and D538G) by degrading ER.

ERD-3111 (Compound 44), an orally active PROTAC ERα degrader (DC50: 0.5 nM), exhibits efficacy in inhibiting tumor growth in both the parental MCF-7 xenograft model harboring wild-type ER and two ESR1-mutated mouse models. This compound has utility in the investigation of ER+ breast cancer [1].

PROTAC ERRα Degrader-3 is a highly effective and selective von Hippel-Lindau-based ligand that efficiently degrades the ERRα protein, reducing its levels by >80% at a concentration of 30 nM. Notably, this compound shows no activity against the ERRβ and ERRγ proteins.

ERRα Ligand-Linker Conjugates 1 refers to a chemical compound that consists of a ligand targeting estrogen-related receptor alpha (ERRα), and a PROTAC linker that facilitates the recruitment of E3 ligases MDM2. It finds utility in the synthesis of a range of PROTACs, including one known as PROTAC ERRalpha Degrader-1. With its capability to induce degradation of ERRα, PROTAC ERRalpha Degrader-1 functions as an ERRα degrader[1].

PROTAC ERRα Degrader-2 is a compound consisting of an MDM2 ligand binding group, a linker, and an estrogen-related receptor alpha (ERRα) binding group. This compound is designed to specifically degrade estrogen-related receptor alpha (ERRα), acting as an ERRα degrader[1].

(rel)-PROTAC ERRα Degrader-1, a relative configuration of PROTAC ERRα Degrader-1, is an estrogen-related receptor alpha (ERRα) degrader comprising an MDM2 ligand binding moiety, a linker, and an ERRα binding moiety [1].

PROTAC ERRα ligand 2 is an inverse agonist for the estrogen-related receptor α (ERRα) with an IC50 of 5.67 nM.

ERD-308 induces >95% of ER degradation at concentrations as low as 5 nM in both cell lines (DC50 (concentration causing 50% of protein degradation) of 0.17 nM and 0.43 nM in MCF-7 and T47D ER+ cells, respectively).ERD-308 is a highly potent PROTAC degrade

PROTAC ER Degrader-4 is a PROTAC degrader of the estrogen receptor (ER) with an IC50 of 0.8 nM.

Estrone-N-O-C1-amido (ERα ligand 1) is an estrogen ligand derivative of Estrone that specifically binds to estrogen receptor α (ERα). With a linker, it complexes with the cIAP1 ligand Bestatin, forming SNIPER[1].

PAC is a chemical conjugate consisting of an ADCs linker and PROTACs linked to an antibody. When PAC is conjugated to an antibody, it exhibits enhanced degradation of estrogen receptor-alpha (ERα) in comparison to PROTAC alone.

PROTAC ERα Degrader-2 is composed of a cIAP1 ligand binding group, a linker, and an estrogen receptor α (ERα) binding group, serving as an ERα degrader. It achieves maximal ERα degradation in human mammary tumor MCF7 cells at a concentration of 30 μM. Degradation inducers that utilize cIAP1 are referred to as specific and non-genetic IAP-dependent protein erasers (SNIPERs)[1].

PROTAC ER Degrader-2 serves as a synthesis intermediate for the production of PAC, a compound that incorporates the ADCs linker and PROTACs, which are subsequently conjugated to an antibody. PAC, exhibits a greater capability to degrade estrogen receptor-alpha (ERα) compared to PROTAC (without the presence of an antibody)[1].

PROTAC ER Degrader-3, an intermediate for the synthesis of PAC, specifically compound LP2. PAC serves as the linker for ADCs and PROTACs that are conjugated to an antibody. Notably, when PAC is conjugated to an antibody, it exhibits enhanced degradation of estrogen receptor-alpha (ERα) compared to PROTAC alone [1].

PROTAC ERα Degrader-1 is a chemical compound. It consists of a ubiquitin E3 ligase binding group, a linker, and a protein binding group. This compound serves as a degrader of estrogen receptor-alpha (ERα).

SNIPER(ER)-110 comprises a cIAP1 ligand and an estrogen ligand connected by a linker. SNIPER(ER)-51 induces estrogen receptor (ER) protein degradation with DC50s of <3 nM and 7.7 nM after 4 h and 48 h, respectively [1].

SNIPER(ER)-87 is a chemical compound composed of a derivative of the inhibitor of apoptosis protein (IAP) ligand LCL161 conjugated to the estrogen receptor α (ERα) ligand 4-hydroxytamoxifen using a PEG linker. It effectively degrades the ERα protein with an IC50 value of 0.097 μM. Within cells, SNIPER(ER)-87 selectively recruits XIAP to ERα, and XIAP functions as the primary E3 ubiquitin ligase responsible for the degradation of ERα induced by SNIPER(ER)-87[1][2].

ER ligand-6 serves as the target protein ligand for the PROTAC ER Degrader-14.

PROTAC ER Degrader-14 (compound 86) is a PROTAC-type estrogen receptor/ERR degrader. It comprises an E3 ubiquitin ligase ligand (blue part) (S)-Deoxy-thalidomide, a PROTAC linker (black part) N-Boc-piperazine, and a target protein ligand (red part) ER ligand-6. The combination of the E3 ligase and linker forms tert-Butyl (S)-4-(2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-5-yl)piperazine-1-carboxylate.

PROTAC ER Degrader-15 (Compound 40) is an orally active estrogen receptor (ER) degrader with anticancer properties, suitable for breast cancer research.

ER ligand-7 is a ligand for the estrogen receptor (ER) that can be used as a target protein ligand for synthesizing PROTAC ER Degrader-15.

ER ligand-8 is a ligand of the estrogen receptor (Estrogen Receptor/ERR) and can be used for the synthesis of the PROTAC molecule ERD-1233.

ER ligand-9 is a conjugate of an estrogen receptor (Estrogen Receptor/ERR) ligand and a linker, utilized in the synthesis of PROTACs ERD-1233.