TR, β 1 isoform human
SIGMA/SRP2020 - recombinant, expressed in E. coli, ≥70% (SDS-PAGE)
Synonym: ERBA-beta; GRTH; NR1A2; THR1; THRB1
Product Type: Chemical
assay | ≥70% (SDS-PAGE) |
biological source | human |
color | clear colorless |
concentration | 500 μg/mL |
form | frozen liquid |
mol wt | ~53 kDa |
NCBI accession no. | NM_000461 ![]() ![]() |
packaging | pkg of 10 μg |
recombinant | expressed in E. coli |
shipped in | dry ice |
storage condition | avoid repeated freeze/thaw cycles |
storage temp. | −70°C |
UniProt accession no. | P10828 ![]() ![]() |
Biochem/physiol Actions: | Nuclear receptors form the largest known family of transcription factors and have a crucial role in nearly all aspects of vertebrate development and adult physiology by transducing the effects of hormones into transcriptional responses. The family is defined by two domains: (a) the central, highly conserved, DNA-binding domain (DBD) of approximately 66 amino acids, and (b) the C-terminal, structurally conserved, ligand-binding domain (LBD) of approximately 250 amino acids. The amino-terminal regions are least conserved among nuclear receptor sequences. This domain is highly divergent between TR α and TR β isoforms, which suggests differential roles in transcriptional regulation. In addition, alternative splicing of the TR β gene generates two isoforms, TR β1 and TR β2 with completely different amino-terminal domains. Unliganded TR inhibits the formation of a functional pre-initiation complex, through direct interaction with TBP and transcription factor IIB. In addition, in the absence of ligand TR has been shown to repress transcription through recruitment of a corepressor complex, which also includes Sin3A and histone deacetylase. Ligand binding releases the corepressor complex and recruits a coactivator complex that includes multiple histone acetyltransferases, including a steroid receptor family coactivator, p300/CREB-binding protein–associated factor (PCAF), and CREB binding protein (CBP). |
Physical form: | Clear and colorless frozen liquid solution |
Preparation Note: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice. |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥70% (SDS-PAGE) |
Storage Temp. | −70°C |
UNSPSC | 12352200 |