The G Word Genomics England

In this explainer episode, we’ve asked Marie Nugent, Community Manager for the Diverse Data Initiative at Genomics England, to explain what diversity is and why it's important, in the context of genomics.
You can also find a series of short videos explaining some of the common terms you might encounter about genomics on our YouTube channel.
If you’ve got any questions, or have any other topics you’d like us to explain, feel free to contact us on info@genomicsengland.co.uk.
You can read the transcript below or download it here: https://files.genomicsengland.co.uk/documents/Podcast-transcripts/006-Why-is-diversity-important-in-genomics-research.docx
Naimah: Why is diversity important in genomics? Today, I’m joined by Marie Nugent, who’s an engagement manager for the Diverse Data Initiative at Genomics England, and she’s going to explain more. So first of all, Marie, let’s start at the beginning. What is diversity? 
Marie: I think it’s sort of a fiendishly seeming simple question, isn’t it, what is diversity, and I think you’ll get just as broad a range of answers as the people you might ask that question to. But for me, you know, it’s really got to be about how we do things. So to me, diversity is about recognising that there’s maybe a limited way in which certain things work, or the way in which we might go about doing certain things, and it’s also limited in terms of who’s involved in that and who might benefit from that. So, in the broadest sense, I think diversity means recognising the limitations of maybe what you currently do, and really looking for how can we open that up a lot more to provide the space and opportunity for a broader range of people and voices and experiences to really be brought into that and shape it. 
Naimah: And can you tell me a bit more about what diversity means in the context of genomics? 
Marie: I find this absolutely fascinating in the context of genomics, because genomics is really about how do we understand, you know, how our DNA, as an entire piece of information, is building us and shaping us as people, and having an impact on our lives, and, you know, for us predominantly our health. And the way in which we currently think about grouping people in genomics is unfortunately still very, very heavily influenced by social understandings of how people group together, not necessarily anything that’s really about your genetic ancestry, for example, which is very different. So at the moment, you know, it’s an interesting thing to play with and think about because in genomics it’s absolutely crucial that we understand the broadest sense of human diversity in terms of genetics and genomics, and only by doing that can we start to really fully understand what it means to be distinct, and therefore how small changes in DNA can have a massive impact on people’s health.  
So, diversity in the context of genomics has to actually completely change the very fundamental ways in which we currently understand how people group together, so it’s really getting at the heart of that academic thinking about the topic. But it’s more than that, of course, as well, because as I’ve sort of already mentioned about what diversity means more broadly, it’s got to be about how we do things and who’s involved in that, and who benefits from it. So, in the context of genomics, it’s playing at the ideas of how we even understand how people relate to each other and how they’re different from each other, as well as how we do things. It’s a really complex but fascinating topic, to be honest, to be able to look at and study in some way. 
Naimah: How does the inclusion of diverse populations contribute to improving genomic research? 
Marie: Yeah, so following on from what I’ve just said, we fundamentally need to include everyone, you know. In order for us to really understand what genetic ancestry means and what difference looks like across different groups, and how tha

In this explainer episode, we’ve asked Ellen Thomas, Interim Chief Medical Officer at Genomics England, to explain what genetic and genomic tests are, why someone might do a test, and how they are performed, in less than 10 minutes.
You can also find a series of short videos explaining some of the common terms you might encounter about genomics on our YouTube channel.
If you’ve got any questions, or have any other topics you’d like us to explain, feel free to contact us on info@genomicsengland.co.uk.
You can read the transcript below or download it here: https://files.genomicsengland.co.uk/documents/Podcast-transcripts/005-What-is-genetic-or-genomic-testing.docx
Naimah: What is genetic or genomic testing? Today, I’m joined by Ellen Thomas, interim chief medical officer for Genomics England, who’s going to explain more. So, first of all Ellen, what is a genetic test?  
Ellen: Well, genetic tests examine a person’s genes to see if they have any changes in their DNA which might explain their symptoms. We all have DNA in most of the cells of our bodies, we inherit it from our parents and pass it on to our children. DNA provides the blueprint for our genes, and the proteins which build and run our bodies. Nearly all of our DNA is exactly the same across all of us, but around 5 million out of our 3 billion DNA letters are different, and each of these we call a genetic variant. The pattern of genetic variants that we all carry helps to make us who we are, and genetic testing is designed to examine some of these variants to help inform our healthcare.  
Naimah: So, why are they sometimes called genetic tests and sometimes called genomic tests?  
Ellen: Well, the words genetic and genomic are often used in exactly the same way, but broadly, genetic tests are usually used to look at just one or a small number of a patient’s genes, while a genomic test will look at hundreds or even thousands of genes at the same time. In general, it’s fine to use either.  
Naimah: If you want to hear more about the difference between genetics and genomics, you can find another explainer episode with Rich Scott on our website, which goes into more detail.  
Okay, so coming back to you, Ellen, what are the reasons we might do a genomic test?  
Ellen: Some rare health conditions are caused by DNA variants in our genes, conditions such as cystic fibrosis, Huntington’s disease or sickle cell disease. In these 3 conditions, there is usually just one gene that is responsible, the same gene for all patients. That means that you can often find the DNA variant which has caused a patient’s symptoms by doing a test which looks just at that gene, or even sometimes just at a part of the gene. But for other genetic conditions, a variant could be found in any of dozens or even hundreds of genes, which could cause the same condition or a group of conditions, and examples of that include familial forms of epilepsy or developmental disorders in children.  
For these conditions, to find an answer you often need to do a broader genomic test, looking at many genes at the same time, and also sometimes in between the genes. Finding the variant in a patient’s DNA which has caused the condition is useful, because it helps understand how the condition is passing down in the family, and whether it could affect anyone else in the family in the future. It is also increasingly used to work out which treatment an individual patient might respond to best.  
Genomic tests are also used to help diagnose and treat cancer. A tumour develops and spreads because new variants in the DNA build up inside the tumour, which are not present in the patient’s healthy cells. By testing the DNA of the tumour, you can sometimes understand more about why it happened and what treatment might be most effective.  
Naimah: So, can you tell me a bit about what sort of questions you can and can’t address with genomic testing, and how has this changed over time?

Joey was diagnosed with DYRK1A syndrome at the age of 13, through the 100,000 Genomes Project. DYRK1A syndrome is a rare chromosomal disorder, caused by changes in the DYRK1A gene which causes a degree of developmental delay or learning difficulty.
In today's episode, Naimah Callachand, Head of Product Engagement and Growth at Genomics England, speaks to Joey's parents, Shaun Pye and Sarah Crawford, and Sarah Wynn, CEO of Unique, as they discuss Joey's story and how her diagnosis enabled them to connect with other parents of children with similar conditions through the charity Unique. Shaun and Sarah also discuss their role in writing the BBC television comedy drama series 'There She Goes' and how this has helped to shine a light on the rare condition community.
Unique provides support, information and networking to families affected by rare chromosome and gene disorders. For more information and support please visit the website.
You can read more about Joey's story on our website.
 
"Although we’re a group supporting families and patients, actually a big part of what we’re doing is around translating those complicated genetics terms, and trying to explain them to families, so they can understand the testing they’ve been offered, the results of testing, and really what the benefits and limitations of testing are...just knowing why it’s happened, being able to connect with others, being able to meet others, but actually often it doesn’t necessarily change treatment."
 
You can read the transcript below or download it here: https://files.genomicsengland.co.uk/documents/Podcast-transcripts/Shining-a-light-on-rare-conditions.docx
 
Naimah: Welcome to the G Word.
[Music]
Sarah Crawford: But I would also say it’s okay to grieve the child that you didn’t have that you thought you were going to have. I just think that’s so important. And I think for me, the most difficult thing in the early couple of years was feeling like I couldn’t do that because nobody appreciated that I’d actually lost anything.
[Music]
Naimah: My name is Naimah Callachand and I’m head of product engagement and growth at Genomics England. On today’s episode, I’m joined by Shaun Pye and Sarah Crawford, who are parents of Joey, who was diagnosed with DYRK1A syndrome at the age of 13, and Sarah Wynn, CEO of Unique, a charity which provides support, information and networking to families affected by rare chromosome and gene disorders. Today, Shaun and Sarah are going to share Joey’s story, and discuss how their role in writing the BBC comedy drama There She Goes has helped to raise awareness of people with rare conditions in mainstream culture. If you enjoy today’s episode, we’d love your support. Please like, share and rate us on wherever you listen to your podcasts.
So first of all, Shaun and Sarah, I wonder if you could tell us a bit about Joey and what she’s like.
Shaun Pye: Yes. So, the medical stuff is that she’s got DYRK1A syndrome, which was diagnosed a few years ago, which means that she’s extremely learning disabled, nonverbal.
Sarah Crawford: Yeah, autistic traits.
Shaun Pye: Eating disorder, very challenging behaviour. She can be quite violent. She can be quite unpredictable. Doubly incontinent, let’s throw that in. She’s 17 but she obviously has a sort of childlike persona, I would say, you know. She sort of likes things that toddlers like, like toys and that sort of thing. But that’s the medical thing. What’s she like, she’s a vast mixture of different things. She can be infuriating, she can be obsessive, but she can be adorable. Occasionally, she can be very loving, especially to her mum.
Sarah Crawford: She’s very strong willed, you know. Once she knows she wants something, it’s impossible to shift her, isn’t it? So, she’s got a lot of self-determination [laughter].
Shaun Pye: So, her obsession at the minute, or it’s fading slightly, which is quite funny, is that she’s become obsessed b

In this explainer episode, we’ve asked Clare Kennedy, Clinical Bioinformatician at Genomics England, to explain what the difference is between DNA and RNA, in less than 10 minutes.
You can also find a series of short videos explaining some of the common terms you might encounter about genomics on our YouTube channel.
If you’ve got any questions, or have any other topics you’d like us to explain, feel free to contact us on info@genomicsengland.co.uk.
You can read the transcript below or download it here: https://files.genomicsengland.co.uk/documents/Podcast-transcripts/004-What-is-the-difference-between-DNA-and-RNA.docx 
Naimah: What is the difference between DNA and RNA? Today, I’m joined by Clare Kennedy, who’s a Clinical Bioinformatician here at Genomics England, who’s going to tell us more.
So first of all, Clare, what is DNA?
Clare: So, DNA stands for deoxyribonucleic acid, and although this is quite a mouthful, DNA is essentially an instruction manual for our body on how to function, and a copy of this manual is stored within almost every cell of the body in a structure called the nucleus. So, our DNA essentially comprises all of the genetic information we inherit from our parents, and this information is contained within two long strands of code, and we inherit one strand of code from our mother and one from our father, and both strands combine and they form a twisted ladder like structure that we call the DNA double helix. So, each strand is made up of small units called nucleotides, and these nucleotides, they differ based on their chemical composition. They can either contain a molecule of adenine, guanine, cytosine or thiamine, and this is why we often see our DNA sequence represented by the letters A, G, C or T. And in total, our entire DNA sequence consists of three billion of these nucleotides.
So, as this DNA instruction manual is quite long, it needs to be broken up into smaller sections that the body can read, and that’s where genes come in. So, a gene is a segment of the DNA and it contains a particular set of instructions, normally on how to make a protein. So, proteins are essential for life and they’re involved in almost every process within our body, and that is why we have around 20,000 protein coding genes in our DNA.
Naimah: So then can you tell me, what is RNA and how does this differ from DNA?
Clare: So, like DNA, RNA, which stands for ribonucleic acid, is an incredibly important molecule that encodes genetic information, and it’s found in all cells of the body. So, RNA consists of only a single strand of nucleotide units, and just like DNA, RNA can be represented by four letters that reflect the chemical composition of each nucleotide. These four letters do differ slightly though, because RNA contains uracil instead of thiamine, so you can distinguish a DNA sequence from an RNA sequence by the presence of the letter U and the absence of the letter T. So, while we think of the DNA as the instruction manual for the body that contains all of our genetic code, RNA is the reader of this instruction manual, and it helps the cell to carry out these instructions, so the proteins can be made.
Naimah: So, can you tell me a bit more about this protein production, and how are DNA and RNA involved?
Clare: So, protein production all starts in the nucleus with the DNA. So, if we want to make protein, we must first read the portion of the DNA or the gene that contains the instructions to make this protein. So, because DNA is so long, it’s really tightly packed into our nucleus, and the
region we’re interested in might not be accessible, so we first need to open this region out. So, molecules and enzymes help us open this region of the DNA, and once the gene is accessible, they start to read it, and they start to transcribe the instructions that are encoded within the gene into a type of RNA called messenger RNA. So, as the name suggests, messenger RNA is the communicator of the instructio

There are a range of outcomes from a genomic test. The results might provide a diagnosis, there may be a variant of uncertain significance, where a genetic variant is likely the cause of the condition, or there might be no particular gene found that is linked to the phenotype or clinical condition - also known as a "no primary finding" result. In this episode, our guests explore the impact of a "no primary finding" result on families, discussing the common experiences and expectations of parents and patients who undergo that genetic testing, and the role that hope plays in the experiences of children with rare and undiagnosed conditions.
Today's host, Lisa Beaton, member of the Participant Panel at Genomics England is joined by Dr Celine Lewis, Principal Research Fellow in Genomics at UCL, Great Ormond Street Institute of Child Health, Jana Gurasashvili, a Genetic Counsellor, and Louise Fish, CEO of Genetic Alliance.
 
"I think it’s also really important to add that hope isn’t necessarily lost when you don’t get a diagnostic result. And in a sense, what can be really helpful is for genetic counsellors to reframe that hope...sort of giving it a different context."
 
For more information on the SWAN UK project which supports families with children that have been through genetic testing but have not found a result following that genetic testing, visit the website.
Read more about the study by Jana Gurasashvili and Dr Celine Lewis: The disequilibrium of hope: a grounded theory analysis of parents' experiences of receiving a "no primary finding" result from genome sequencing.
 
You can read the transcript below or down it here: https://files.genomicsengland.co.uk/documents/Podcast-transcripts/Hope-for-those-with-no-primary-findings.docx 
 
Lisa: Hello, welcome to the G Word. 
Lisa: I think in the back of my mind, subconsciously, I had hoped that when we eventually got a diagnosis, it would – I don’t know, bells and whistles, balloons going off, fireworks, etc. And then the experience of a letter thumping on the doormat, and I recognised the postmark quite quickly, and it was at that moment I suddenly thought, “Oh gosh, I haven’t buried all these feelings of hope.” Because I opened that letter with quite trembly hands, and then this diagnosis or lack of diagnosis, you know, nothing had been found, and it was a bit… I don’t know if it’s been described as like a nail in the coffin experience, because I really hadn’t realised I was still clinging to this hope all that time, and then again it was, you know, another, “No, nothing’s there.
Lisa: My name is Lisa Beaton and I’m a member of the participant panel at Genomics England. On today’s episode, I’m joined by Dr Celine Lewis, the principal research fellow in Genomics at UCL, Great Ormond Street Institute of Child Health, Jana Gurasashvili, a genetic counsellor, and Louise Fish, the CEO of Genetic Alliance. Today we’ll be discussing the impact on parents with children with rare conditions, who received a no primary findings result after diagnostic whole genome sequencing. If you enjoy today’s episode, we’d love your support. Please like, share and rate us on wherever you listen to your podcasts.
Can I ask all of us here present to introduce themselves, please?
Celine: Hi everyone, I’m Celine, I’m a behavioural scientist in genomics at UCL Institute of Child Health, and I currently hold an NAHR advanced fellowship to look at the implementation of WGS, or whole genome sequencing, in the NHS.
Jana: I’m Jana Gurasashvili and I’m a genetic counsellor at Northwest Thames Regional Genetic Service, and prior to that I was at Great Ormond Street, involved with consenting families to the 100,000 Genomes Project, and I also have an ongoing interest in the lived experience of patients and parents of genetic counselling and rare disease.
Louise: Hi, I’m Louise Fish, I’m the chief executive of Genetic Alliance UK, and we are an alliance o

In this explainer episode, we’ve asked Helen Brittain, Clinical Lead for Rare Disease Diagnostics at Genomics England, to explain what a variant of uncertain significance is, in less than 10 minutes.
You can also find a series of short videos explaining some of the common terms you might encounter about genomics on our YouTube channel.
If you’ve got any questions, or have any other topics you’d like us to explain, feel free to contact us on info@genomicsengland.co.uk.
 
You can read the transcript below or download it here: https://files.genomicsengland.co.uk/documents/Podcast-transcripts/What-is-a-variant-of-uncertain-significance.docx 
Naimah: What is a variant of uncertain significance? Today I’m joined by Helen Brittain, who’s the clinical lead for rare disease diagnostics at Genomics England, to find out more. So first of all, Helen, before we dive into the topic, I’d like to go one step further back and ask you to explain what is a gene? 
Helen: A gene is effectively a section of our DNA, which is our genetic code, and it contains an instruction, something important about how we grow, how we develop, how we function as a human. Humans in total have around 20,000 genes, which is our complete set of instructions, to tell us everything we need to know about ourselves. 
Naimah: So, what are gene variants then, and do they all have an effect? 
Helen: Variants are effectively differences within genes. So genes, like I said, are instructions, and they have a particular way that they’re spelled out and structured, so that the body can understand them and make sense of that instruction. A variant is where there’s something different about the way that that gene is spelled out or structured that could affect how it works, and basically a variant is a difference to what we expect to see. 
Naimah: And do all of these have an effect? 
Helen: So no, not all of them will have an effect. Some differences or variants within a gene may not affect the way it works at all, whereas others might alter that gene so significantly that it can’t do its job anymore, and could be very significant for that person’s health. 
Naimah: And how do we find these gene variants? 
Helen: Gene variants are exactly what we’re looking for when we’re trying to find a diagnosis for somebody. So, somebody with a rare condition is likely to have an underlying difference within their genes that would be the explanation for it. We’re finding these through doing genetic testing or genomic testing, so looking at an individual gene, a series of genes, or even across someone’s entire genetic code, through whole genome sequencing, and we find these variants through doing that testing. 
Naimah: And this might be a good opportunity to mention our other Genomics 101 episode on genetic testing, if you’d like to find out some more information on that as well. So, moving on with the next question, how is a variant’s significance determined? 
Helen: Variants, as we say, come from the genetic tests we undertake, and there are a team of people who look at and try to determine what effect that variant might have on that person. This is the majority of the time the work done within the laboratory teams, through the clinical scientists, who have expertise in understanding the impact of variants within a gene, and they work together with other clinical representatives, like the clinician looking after the patient, to understand that patient’s disease in as much detail as they can, to try to pull all of the information together and determine whether that variant is making a difference or not.  
They would look at a lot of different pieces of information to try to work out, could this be the reason behind that person’s genetic disorder? And that might be things like have we seen it before, can we predict the effect of that variant on the gene? And we have to understand how variants within that gene cause a condition to be able to mat