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. 1982 Jul 10;10(13):3893–3904. doi: 10.1093/nar/10.13.3893

The basic repeat unit of a Chironomus Balbiani ring gene.

H Bäumlein, U Wobus, S A Gerbi, F C Kafatos
PMCID: PMC320766  PMID: 7111025

Abstract

A clone derived from the Balbiani ring b (BRb) gene of Chironomus thummi has been used to study the internal organization of that gene. Much of the gene consists of approximately 80 copies of a ca. 300 bp repeat unit, which are tandemly organized. The BRb clone contains a major part of that unit (242 bp). Sequence analysis shows that approximately 60% of the unit corresponds to short, tandemly organized subsequences, which encode peptides 8 to 11 residues long. In turn, each subsequence consists of even shorter internal repeats, corresponding to a tripeptide (consensus Proline. Serine. Lysine.). The remainder of the ca. 300 bp unit probably does not have obvious repetitive substructure.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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