Dataset Information

Full-length de novo sequence of the Chlamydophila psittaci type strain, 6BC.

ABSTRACT: Chlamydophila psittaci is an obligate intracellular zoonotic pathogen, mainly of birds. It is the causative agent of psittacosis in birds and humans. Here we report the full-length de novo genome sequence of the avian isolate 6BC, the type strain of the species C. psittaci.

SUBMITTER: Voigt A

PROVIDER: S-EPMC3133153 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature

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Full-length de novo sequence of the Chlamydophila psittaci type strain, 6BC.

Voigt Anja A Schöfl Gerhard G Heidrich Alexander A Sachse Konrad K Saluz Hans Peter HP

Journal of bacteriology 20110325 10

Chlamydophila psittaci is an obligate intracellular zoonotic pathogen, mainly of birds. It is the causative agent of psittacosis in birds and humans. Here we report the full-length de novo genome sequence of the avian isolate 6BC, the type strain of the species C. psittaci. ...[more]

PMID: 21441521

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Project description:Efficiently obtaining full-length cDNA for a target gene is the key step for functional studies and probing genetic variations. However, almost all sequenced domestic animal genomes are not 'finished'. Many functionally important genes are located in these gapped regions. It can be difficult to obtain full-length cDNA for which only partial amino acid/EST sequences exist. In this study we report a general pipeline to obtain full-length cDNA, and illustrate this approach for one important gene (Ovocleidin-17, OC-17) that is associated with chicken eggshell biomineralization. Chicken OC-17 is one of the best candidates to control and regulate the deposition of calcium carbonate in the calcified eggshell layer. OC-17 protein has been purified, sequenced, and has had its three-dimensional structure solved. However, researchers still cannot conduct OC-17 mRNA related studies because the mRNA sequence is unknown and the gene is absent from the current chicken genome. We used RNA-Seq to obtain the entire transcriptome of the adult hen uterus, and then conducted de novo transcriptome assembling with bioinformatics analysis to obtain candidate OC-17 transcripts. Based on this sequence, we used RACE and PCR cloning methods to successfully obtain the full-length OC-17 cDNA. Temporal and spatial OC-17 mRNA expression analyses were also performed to demonstrate that OC-17 is predominantly expressed in the adult hen uterus during the laying cycle and barely at immature developmental stages. Differential uterine expression of OC-17 was observed in hens laying eggs with weak versus strong eggshell, confirming its important role in the regulation of eggshell mineralization and providing a new tool for genetic selection for eggshell quality parameters. This study is the first one to report the full-length OC-17 cDNA sequence, and builds a foundation for OC-17 mRNA related studies. We provide a general method for biologists experiencing difficulty in obtaining candidate gene full-length cDNA sequences.

Dataset Information

Full-length de novo sequence of the Chlamydophila psittaci type strain, 6BC.

Publications

Full-length de novo sequence of the Chlamydophila psittaci type strain, 6BC.

Similar Datasets

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