کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2198285 1551010 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
KRAB: A partner for SRY action on chromatin
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
KRAB: A partner for SRY action on chromatin
چکیده انگلیسی

The sex determining region Y (SRY/Sry) gene is necessary and sufficient for testis determination and differentiation in mammals. SRY/Sry encodes a putative transcription factor with a high mobility group (HMG) DNA-binding domain. The spatiotemporal regulation of Sry expression suggests that a brief action of SRY in a limited number of progenitor cells (pre-Sertoli cells) before the onset of default ovarian differentiation is sufficient to switch on testicular differentiation. Recent identification and characterization of the Krüppel-associated box only (KRAB-O) protein as an SRY-interacting protein have provided experimental evidence supporting an interesting model for SRY function. In this model, SRY recruits the KRAB–KAP1 (KRAB-associating protein 1) complex as a chromatin modulator, which provides a molecular mechanism of SRY as a transcription factor. Moreover, the sufficiency of a brief action of SRY for testis differentiation can be partly explained by the heritability of KRAB-mediated chromatin remodeling. Although it is currently uncertain whether KRAB-O is the only KRAB protein with which SRY interacts, we hypothesize that KRAB-O or yet-to-be identified KRAB-containing proteins might play various roles in sex determination and gonadal differentiation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular and Cellular Endocrinology - Volume 247, Issues 1–2, 9 March 2006, Pages 47–52
نویسندگان
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