The nucleotide sequence of rabbit embryonic globin gene beta 3.

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The nucleotide sequence of a rabbit embryonic globin gene, beta 3, has been determined from 161 base pairs (bp) on the 5' side of the mRNA cap site to 209 base pairs beyond the 3' poly A addition site. The 5' and 3' ends of mRNA from both embryonic globin genes beta 3 and beta 4 have been determined by an S1 protection assay. Sequences that are highly conserved in the 5' flanking region of eukaryotic structural genes, AATAAAA and CCAAT, are located -25 to -31 nucleotides and -81 to -85 nucleotides, respectively, before the cap site. The CCAAT sequence is duplicated at -108 to -112 nucleotides, as it is in the human fetal gamma-globin genes. Small (124 bp) and large (817 bp) intervening sequences are located between codons 30 and 31 and between 104 and 105, respectively. The sequence AATAAA precedes the predominant poly(A) addition site by 19 nucleotides. Although rabbit globin gene beta 3 is transcribed and translated almost exclusively in embryonic erythrocytes, it shares striking homology with the human gamma-globin genes which are expressed in erythrocytes from fetal liver. The evolutionary conservation of rabbit beta 3 and human gamma correlates well with their similar chromosomal positions in the two genes families.

Original languageEnglish (US)
Pages (from-to)11780-11786
Number of pages7
JournalJournal of Biological Chemistry
Issue number22
StatePublished - Nov 25 1981

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Cell Biology


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