DHT is the main culprit because its more potent than T but T is a male androgen and will bind as well.
This is for regular men not genetically modified people like the infamous pseudo h.
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The actions of androgens such as testosterone and dihydrotestosterone are mediated via the androgen receptor (AR), a ligand-dependent nuclear transcription factor and member of the steroid hormone nuclear receptor family. Given its widespread expression in many cells and tissues, the AR has a diverse range of biological actions including important roles in the development and maintenance of the reproductive, musculoskeletal, cardiovascular, immune, neural and haemopoietic systems. AR signalling may also be involved in the development of tumours in the prostate, bladder, liver, kidney and lung. Androgens can exert their actions via the AR in a DNA binding-dependent manner to regulate target gene transcription, or in a non-DNA binding-dependent manner to initiate rapid, cellular events such as the phosphorylation of 2ndmessenger signalling cascades. More recently, ligand-independent actions of the AR have also been identified. Given the large volume of studies relating to androgens and the AR, this review is not intended as an extensive review of all studies investigating the AR, but rather as an overview of the structure, function, signalling pathways and biology of the AR as well as its important role in clinical medicine, with emphasis on recent developments in this field.
Introduction
Androgens (testosterone and dihydrotestosterone (DHT)) are the male sex hormones required for development of the male reproductive system and secondary sexual characteristics.
1Testosterone can be converted to its more biologically active form, DHT, by 5α reductase, and to oestradiol by aromatase. Testosterone and DHT mediate their actions via the AR, a ligand-dependent nuclear transcription factor.
2 Other members of the steroid hormone nuclear receptor family include the oestrogen receptor (ER), progesterone receptor (PR), glucocorticoid receptor (GR) and mineralocorticoid receptor (MR). The AR, located on the X chromosome, is expressed in a diverse range of tissues and as such androgens have been documented to have significant biological actions in bone, muscle, prostate, adipose tissue and the reproductive, cardiovascular, immune, neural and haemopoietic systems.
3 The AR binds androgens with strong affinity in the low nanomolar range
4 with DHT being more biologically active than testosterone, binding to the AR with a 2-fold higher affinity and a decreased dissociation rate of 5-fold compared to testosterone.
5
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4810760/