Abstract:
:Recent evidence shows that Silver-Russell syndrome (SRS), the major functional deficit of which is limited growth, both intrauterine and postnatal, is due to a double dose of a gene within 7p11.2-p13 that is normally expressed exclusively from the maternal copy. Of the several growth-related genes in this chromosomal region, only GRB10 has been demonstrated to be imprinted; however, imprinting was limited to brain and muscle and was incomplete. Using reverse-transcript PCR, we now confirm GRB10 imprinting in these two tissues is isoform-specific and, more importantly, demonstrate absence of imprinting in growth plate cartilage, the tissue most directly involved in linear growth. Thus, it is unlikely that GRB10 is the gene responsible for SRS.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
McCann JA,Zheng H,Islam A,Goodyer CG,Polychronakos Cdoi
10.1006/bbrc.2001.5500subject
Has Abstractpub_date
2001-09-07 00:00:00pages
943-8issue
5eissn
0006-291Xissn
1090-2104pii
S0006-291X(01)95500-7journal_volume
286pub_type
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