TABLE 5.2 Examples of Mammalian Genes That Are Imprinted* Allele Gene Expressed Function WT1 Maternal Wilms tumor-suppressor gene; suppresses cell growth Insulin; hormone involved in cell growth and metabolism INS Paternal Igf2 Paternal Insulin-like growth factor Il; similar to insulin Igf2R Maternal Receptor for insulin-like growth factor II UBЕЗА Maternal Regulates protein degradation; involved in Angelman syndrome Splicing factor; involved in Prader-Willi syndrome SNRPN Paternal Gabrb Maternal Neurotransmitter receptor "Researchers estimate that approximately 1-2% of human genes are subjected to genomic imprinting, but only about 100 have actually been demonstrated to be imprinted.

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter32: The Reception And Transmission Of Extracellular Information
Section: Chapter Questions
Problem 21P
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On the left side of this figure, explain why the offspring
does not have Prader-Willi syndrome but does have Angelman syndrome

TABLE 5.2
Examples of Mammalian Genes That Are Imprinted*
Allele
Gene
Expressed
Function
WT1
Maternal
Wilms tumor-suppressor gene; suppresses
cell growth
Insulin; hormone involved in cell growth and
metabolism
INS
Paternal
Igf2
Paternal
Insulin-like growth factor Il; similar to insulin
Igf2R
Maternal
Receptor for insulin-like growth factor II
UBЕЗА
Maternal
Regulates protein degradation; involved in
Angelman syndrome
Splicing factor; involved in Prader-Willi
syndrome
SNRPN
Paternal
Gabrb
Maternal
Neurotransmitter receptor
"Researchers estimate that approximately 1-2% of human genes are subjected to
genomic imprinting, but only about 100 have actually been demonstrated to be
imprinted.
Transcribed Image Text:TABLE 5.2 Examples of Mammalian Genes That Are Imprinted* Allele Gene Expressed Function WT1 Maternal Wilms tumor-suppressor gene; suppresses cell growth Insulin; hormone involved in cell growth and metabolism INS Paternal Igf2 Paternal Insulin-like growth factor Il; similar to insulin Igf2R Maternal Receptor for insulin-like growth factor II UBЕЗА Maternal Regulates protein degradation; involved in Angelman syndrome Splicing factor; involved in Prader-Willi syndrome SNRPN Paternal Gabrb Maternal Neurotransmitter receptor "Researchers estimate that approximately 1-2% of human genes are subjected to genomic imprinting, but only about 100 have actually been demonstrated to be imprinted.
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