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Optimized reduced representation bisulfite sequencing reveals tissue-specific mCHH islands in maize

DNA methylation plays important roles in many regulatory processes in plants. It is economically infeasible to profile genome-wide DNA methylation at a single-base resolution in maize, given its genome size of ~2.5 Gb. As an alternative, we adapted region of interest (ROI)-directed reduced representation bisulfite sequencing (RRBS) to survey genome-wide methylation in maize. We ...

MethGo: a comprehensive tool for analyzing whole-genome bisulfite sequencing data

Background DNA methylation is a major epigenetic modification regulating several biological processes. A standard approach to measure DNA methylation is bisulfite sequencing (BS-Seq). BS-Seq couples bisulfite conversion of DNA with next-generation sequencing to profile genome-wide DNA methylation at single base resolution. The analysis of BS-Seq data involves the use of customized ...

Examining the condition-specific antisense transcription in S. cerevisiae and S. paradoxus

Background Recent studies have demonstrated that antisense transcription is pervasive in budding yeasts and is conserved between Saccharomyces cerevisiae and S. paradoxus. While studies have examined antisense transcripts of S. cerevisiae for inverse expression in stationary phase and stress conditions, there is a lack of comprehensive analysis of the conditional specific ...

The Bacterial Intimins and Invasins: A Large and Novel Family of Secreted Proteins

Background Gram-negative bacteria have developed a limited repertoire of solutions for secreting proteins from the cytoplasmic compartment to the exterior of the cell. Amongst the spectrum of secreted proteins are the intimins and invasins (the Int/Inv family; TC# 1.B.54) which are characterized by an N-terminal β-barrel domain and a C-terminal surface localized passenger domain. ...

Membrane Porters of ATP-Binding Cassette Transport Systems Are Polyphyletic

currently recognized ABC uptake porter families. Acknowledgements We thank Dr. Yu-feng Tsai, Dr. Ming Ren Yen and Dorjee Tamang for software development; Dorjee Tamang for assistance with figure preparation

The Transporter Classification Database: recent advances

The Transporter Classification Database (TCDB), freely accessible at http://www.tcdb.org, is a relational database containing sequence, structural, functional and evolutionary information about transport systems from a variety of living organisms, based on the International Union of Biochemistry and Molecular Biology-approved transporter classification (TC) system. It is a curated ...