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20 December 2022 | Story Gerda-Marié van Rooyen | Photo Supplied
Crystal-Donna Roberts
Crystal-Donna Roberts is a multifaceted lady. She appears regularly in soaps and is now a published author too. Speurder Sammi, an Afrikaans book written for early teens, explores themes such as anxiety, trauma, and pain.

She loved mysteries from a young age. Growing up, Crystal- Donna Roberts was fond of Columbo and Murder she wrote. Roberts, who graduated with a BA Drama and Theatre Arts in 2005, says she had always liked the tricky puzzles Scooby-Doo and Nancy Drew had to solve. She eagerly joined them on their missions page by page. Being an actress and having a busy schedule in front of cameras, Roberts actively decided to put time aside last year to write while participating in the Jakes Gerwel mentorship programme for upcoming authors. A lifelong dream came true when she wrote her debut novel, Speurder Sammi: Die blou steen (Detective Sammi: The blue stone). Tafelberg published her mystery-based story, which Roberts launched in September.

“Sammi is a teenager who lives with her artist aunt Valerie. The duo went on holiday visiting Oumie and Dedda in the Northern Cape. Although Sammi will miss her friends, April and Lerato, she is looking forward to a change of scenery. It will also distract her mind from the anticipation of waiting for acceptance at an art school she fancies. However, rural towns are full of surprises – and chancers.”

“There are teenage memories we seldom forget. The memory of growing pains is still vivid in my mind. I recall it and draw inspiration from it.”

Roberts doesn’t have set rituals when she writes. “I allow myself to do what my body and soul likes. Sometimes this means simply sitting down and enjoying a cup of tea.” Looking back on her fellowship, she discovered her love for creating new worlds and allowing the story to develop a storyline of its own. “I’ve learned I still have a lot to learn – this excites me. I also learned the importance of deadlines, even though they are scary.”

The former UFS student says she chose the Northern Cape as the setting for her story as it is one of the most beautiful parts of our country. “It is one of the prettiest parts of our country. I wanted my character to explore new horizons, but to remain between her loved ones when she goes through her healing and strengthening process.” Although Roberts is determined to write her second book, the details are still unknown. In the meantime, she enjoys reading Walter Russel’s The Secret of Light. She draws inspiration from Andrew Davidson’s The Gargoyle. “Apart from the story that deeply resonates with me, I can appreciate the detail in the story and Davidson’s writing style.”

To enquire about stockists selling Speurder Sammi, visit www.nb.co.za.


Presenter and television, theatre and film actress, Roberts is currently starring in kykNET’s drama series, Fraksie. She is also known for her roles in 7de Laan, Getroud Met Rugby, Montana, Vallei van Sluiers, Krotoa, and The Endless River.

News Archive

UFS study on cell development in top international science journal
2008-09-16

A study from the University of the Free State (UFS) on how the change in the packaging of DNA with cell development influenced the expression of genes, will be published in this week’s early edition of the prestigious international, peer-reviewed science journal, the Proceeding of the National Academy of Sciences of the USA (PNAS).

The PNAS journal has an impact factor of 10, which means that studies published in the journal are, on average, referred to by ten other scientific studies in a two year period. The South African Journal of Science, by comparison, has an impact factor of 0.7.

The UFS study, funded by the Wellcome Trust and the National Research Foundation (NRF), looked at how the change in the packaging of DNA with cell development influenced the expression of genes. It is very relevant to research on stem cells, an area of medicine that studies the possible use of undifferentiated cells to replace damaged tissue.

Prof. Hugh Patterton, of the Department of Microbial, Biochemical and Food Biotechnology at the UFS, who led the study, said: "We are extremely proud of this study. It was conceived in South Africa, it was performed in South Africa, the data were analysed in South Africa, and it was published from South Africa."

When a gene is expressed, the information encoded in the gene is used to manufacture a specific protein. In eukaryotes, which include humans, there is approximately 1m of DNA, containing the genes, in every cell. This length of DNA has to fit into a cell nucleus with a diameter of only about 10 micrometer. In order to fit the DNA into such a small volume, eukaryotic cells wrap their DNA onto successive protein balls, termed nucleosomes. Strings of nucleosomes, resembling a bead of pearls, is folded into a helix to form a chromatin fiber. The study from the UFS investigated how the binding of a specific protein, termed a linker histone, that binds to the length of DNA between nucleosomes, influenced the formation of the chromatin fiber and also the activity of genes.

"We found that the linker histone bound to chromatin in yeast, which we use as a model eukaryote, under conditions where virtually all the genes in the organism were inactive. It was widely believed that the binding of the linker histone caused the inactivation of genes. We studied the relationship between the amount of linker histone bound in the vicinity of each gene and the expression of that gene for all the genes in yeast, using genomic techniques. We made the surprising discovery that even through the linker histone preferentially bound to genes under conditions where the genes were shut off, this inactivation of genes was not caused by the binding of the linker histone and folding of the chromatin,” said Prof. Patterton.

He said: “Instead our data strongly suggested that the observed anti-correlation was due to the movement of enzymes along the DNA molecule, involved in processing the information in genes for the eventual manufacture of proteins. This movement of enzymes displaced the linker histones from the DNA. This finding now requires a rethink on aspects of how packaging of DNA influences gene activity."

Prof. Patterton said that his research group, using the Facility for Genomics and Proteomics as well as the Bioinformatics Node at the UFS, was currently busy with follow-up studies to understand how other proteins in nucleosomes affected the activities of genes, as well as with projects to understand how chemicals found in red wine and in green tea extended lifespan. "We are certainly having a marvelous time trying to understand the fundamental mechanisms of life, and the UFS is an exciting place to be if one was interested in studying life at the level of molecules," he said.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
18 September 2008
 

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