Developmentally regulated transporter in Leishmania is encoded by a family of clustered genes

David A. Stein, Bradley R. Cairns, Scott Landfear

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have previously cloned a gene for a developmentally regulated transport protein from the trypanosomatid protozoan Leishmania enriettii. We demonstrate here that this transporter is encoded by a single family of tandemly clustered genes containing approximately 8 copies of the 3.6 kilobase repeat unit. Transcriptional mapping defines a contiguous 3.3 kilobase region of the repeat unit that encodes the mRNA. The 5′ end of the mature mRNA contains the spliced leader or mini-exon previously identified in kinetoplastid protozoa, while the 3′ ends of the mRNA are heterogeneous in sequence and in location of the polyadenylation site. We have identified genomic restriction fragments that flank the tandem repeat on the 5′ and 3′ sides and which may be linked to sequences required for expression of the gene family. Other species of Leishmania also contain sequences that hybridize to the cloned L. enriettii gene at high stringency.

Original languageEnglish (US)
Pages (from-to)1549-1557
Number of pages9
JournalNucleic Acids Research
Volume18
Issue number6
StatePublished - Mar 25 1990

Fingerprint

Leishmania enriettii
Leishmania
Genes
Messenger RNA
Gene
Spliced Leader RNA
Polyadenylation
Tandem Repeat Sequences
Protozoa
Unit
Exons
Carrier Proteins
Genomics
Gene Expression
Fragment
Restriction
Protein
Family
Demonstrate

ASJC Scopus subject areas

  • Genetics
  • Statistics, Probability and Uncertainty
  • Applied Mathematics
  • Health, Toxicology and Mutagenesis
  • Toxicology
  • Genetics(clinical)

Cite this

Developmentally regulated transporter in Leishmania is encoded by a family of clustered genes. / Stein, David A.; Cairns, Bradley R.; Landfear, Scott.

In: Nucleic Acids Research, Vol. 18, No. 6, 25.03.1990, p. 1549-1557.

Research output: Contribution to journalArticle

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