Biomaterial Database

Nuclei in testicular feminization (Tfm) are not activated by intact testosterone receptor complexes: a morphometric study in striated urethral muscle of mosaic mice. 1980

K U Thiedemann, and U Drews

Sex reversed mice heterozygous for the X-linked Tfm mutation are mosaics with respect to the Tfm locus. In the androgen-dependent striated urethral muscle, nuclei coding for the intact testosterone receptor protein and nuclei coding for the defective Tfm receptor protein are incorporated in the same multinucleate muscle fibres. The intact testosterone receptor complex can thus be expected to enter the Tfm nuclei. Our measurements show that the fibre diameters of the mosaic muscle form a homogeneous population, intermediate in size between induced male and non-inducible Tfm phenotypes. By contrast, the nuclear size shows a bimodal distribution, the subpopulations corresponding to Tfm and wild type nuclei. The results indicate that the Tfm nuclei are not activated by the intact testosterone receptor complex.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009030	Mosaicism	The occurrence in an individual of two or more cell populations of different chromosomal constitutions, derived from a single ZYGOTE, as opposed to CHIMERISM in which the different cell populations are derived from more than one zygote.
D009132	Muscles	Contractile tissue that produces movement in animals.	Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D011944	Receptors, Androgen	Proteins, generally found in the CYTOPLASM, that specifically bind ANDROGENS and mediate their cellular actions. The complex of the androgen and receptor migrates to the CELL NUCLEUS where it induces transcription of specific segments of DNA.	Androgen Receptors,5 alpha-Dihydrotestosterone Receptor,Androgen Receptor,Dihydrotestosterone Receptors,Receptor, Testosterone,Receptors, Androgens,Receptors, Dihydrotestosterone,Receptors, Stanolone,Stanolone Receptor,Testosterone Receptor,5 alpha Dihydrotestosterone Receptor,Androgens Receptors,Receptor, 5 alpha-Dihydrotestosterone,Receptor, Androgen,Receptor, Stanolone,Stanolone Receptors,alpha-Dihydrotestosterone Receptor, 5
D011987	Receptors, Steroid	Proteins found usually in the cytoplasm or nucleus that specifically bind steroid hormones and trigger changes influencing the behavior of cells. The steroid receptor-steroid hormone complex regulates the transcription of specific genes.	Corticosteroid Receptors,Receptors, Corticosteroid,Steroid Receptors,Corticosteroid Receptor,Receptors, Steroids,Steroid Receptor,Receptor, Corticosteroid,Receptor, Steroid,Steroids Receptors
D002467	Cell Nucleus	Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	Cell Nuclei,Nuclei, Cell,Nucleus, Cell
D005260	Female		Females
D006579	Heterozygote	An individual having different alleles at one or more loci regarding a specific character.	Carriers, Genetic,Genetic Carriers,Carrier, Genetic,Genetic Carrier,Heterozygotes
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013734	Androgen-Insensitivity Syndrome	A disorder of sexual development transmitted as an X-linked recessive trait. These patients have a karyotype of 46,XY with end-organ resistance to androgen due to mutations in the androgen receptor (RECEPTORS, ANDROGEN) gene. Severity of the defect in receptor quantity or quality correlates with their phenotypes. In these genetic males, the phenotypic spectrum ranges from those with normal female external genitalia, through those with genital ambiguity as in Reifenstein Syndrome, to that of a normal male with INFERTILITY.	Testicular Feminization,AR Deficiency,Androgen Insensitivity Syndrome,Androgen Insensitivity, Partial,Androgen Receptor Deficiency,Androgen Resistance Syndrome,Androgen-Insensitivity Syndrome, Complete,Androgen-Insensitivity Syndrome, Partial,DHTR Deficiency,Dihydrotestosterone Receptor Deficiency,Male Pseudohermaphroditism Due to Androgen Insensitivity,Reifenstein Syndrome,Reifenstein's Syndrome,Testicular Feminization Syndrome,AR Deficiencies,Androgen Insensitivities, Partial,Androgen Insensitivity Syndrome, Complete,Androgen Insensitivity Syndrome, Partial,Androgen Insensitivity Syndromes,Androgen Receptor Deficiencies,Androgen Resistance Syndromes,Androgen-Insensitivity Syndromes,Androgen-Insensitivity Syndromes, Complete,Androgen-Insensitivity Syndromes, Partial,Complete Androgen-Insensitivity Syndrome,Complete Androgen-Insensitivity Syndromes,DHTR Deficiencies,Deficiencies, AR,Deficiencies, Androgen Receptor,Deficiencies, DHTR,Deficiencies, Dihydrotestosterone Receptor,Deficiency, AR,Deficiency, Androgen Receptor,Deficiency, DHTR,Deficiency, Dihydrotestosterone Receptor,Dihydrotestosterone Receptor Deficiencies,Feminization Syndrome, Testicular,Feminization Syndromes, Testicular,Feminization, Testicular,Feminizations, Testicular,Insensitivities, Partial Androgen,Insensitivity Syndrome, Androgen,Insensitivity Syndromes, Androgen,Insensitivity, Partial Androgen,Partial Androgen Insensitivities,Partial Androgen Insensitivity,Partial Androgen-Insensitivity Syndrome,Partial Androgen-Insensitivity Syndromes,Receptor Deficiencies, Androgen,Receptor Deficiencies, Dihydrotestosterone,Receptor Deficiency, Androgen,Receptor Deficiency, Dihydrotestosterone,Reifensteins Syndrome,Resistance Syndrome, Androgen,Resistance Syndromes, Androgen,Testicular Feminization Syndromes,Testicular Feminizations