- Short Report
- Open Access
Harmonizing the interpretation of genetic variants across the world: the Malaysian experience
BMC Research Notes volume 9, Article number: 125 (2016)
Databases for gene variants are very useful for sharing genetic data and to facilitate the understanding of the genetic basis of diseases. This report summarises the issues surrounding the development of the Malaysian Human Variome Project Country Node. The focus is on human germline variants. Somatic variants, mitochondrial variants and other types of genetic variation have corresponding databases which are not covered here, as they have specific issues that do not necessarily apply to germline variations.
The ethical, legal, social issues, intellectual property, ownership of the data, information technology implementation, and efforts to improve the standards and systems used in data sharing are discussed.
An overarching framework such as provided by the Human Variome Project to co-ordinate activities is invaluable. Country Nodes, such as MyHVP, enable human gene variation associated with human diseases to be collected, stored and shared by all disciplines (clinicians, molecular biologists, pathologists, bioinformaticians) for a consistent interpretation of genetic variants locally and across the world.
The management of inherited diseases are a major problem in the health care system. In addition to the complexity and heterogeneity of the clinical data, patients who receive treatment from multiple care centres also cause the fragmentation of important information regarding the diseases. The creation of databases that allow comprehensive access to basic clinical and genetic data will greatly improve accurate diagnosis and treatment of patients with genetic disorders.
The Human Variome Project is an international non-governmental organisation working to build capacity in the practice of responsible genomics. To ensure that this contributes to improving global health outcomes, The Human Variome Project focusses on increasing both the quality and quantity of genomic knowledge that is collected, curated, interpreted and shared for clinical practice. The Human Variome Project acts as an umbrella organisation across multiple countries, institutions and initiatives to establish collaboration around its central vision—the responsible, free and open online publishing of variants and associated clinical data and other information to assist interpretation of variants.
The systematic collection of human genetic variation is an ambitious goal with vast technical and organizational challenges, which must take into account the differing ethical, legal and social norms that exist across the world. The Human Variome Project proposes two main mechanisms to meet the challenges of free and responsible sharing of genetic variant information pertaining to human disease. One is to assist countries in developing their own capacity to generate and contribute their own variant information via the establishment of HVP Country Nodes. The other is to support international groups formed around specific genes or diseases to do the same .
HVP Country Nodes are a vital component for achieving improved health outcomes for people both within the country and around the world. An HVP Country Node is defined as having three components: (1) A central repository or network of databases, that receive and store information on variation in the human genome that has been generated within each country to enable the sharing of that information both nationally and internationally; (2) a governance structure that ensures that the work of the Node is both sustainable in the long term and is consistent with all relevant national and international ethical, legal and social requirements; and (3) a set of policies and procedures that ensures that the repository is operated and maintained in a responsible and accountable manner that is consistent with both national and HVP standards.
Gene/disease-specific variant databases
One of the advantages of an HVP Country Node is the role it can play in supporting gene-disease specific databases. For example, the International Society for Gastrointestinal Hereditary Tumours (InSiGHT) is a professional body of healthcare workers dedicated to advancing knowledge and management of familial gastrointestinal (GI) cancer. Its mission includes the facilitation of international collaborative projects among its members, to support databases of variants related to familial gastrointestinal tumours, and to apply its robust system to assign pathogenicity status to gene variants. The InSiGHT DNA Mismatch Repair (MMR) database  forms a primary store of public information of inherited gastrointestinal cancer gene variants and uses Leiden Open Variation Database (LOVD http://www.lovd.nl/) to consolidate data from various sources such as published literature, diagnostic laboratory submissions, clinical reports, research data, and other databases . DNA sequencing techniques have improved leading to an expanding amount of published reports relating to MMR genes. The shared interests between InSiGHT and the Human Variome Project have driven a substantial increase in submissions of MMR variants to the central database. Major outcome of the pilot project initiated by InSiGHT and the Human Variome Project was the establishment of Gene/Disease Specific Databases (GDSDb) as an integral part of the Human Variome Project vision. The formation of GDSDb is to allow gene/disease specialists to value-add to the data collected in Country Nodes such as providing expert interpretation of variant effects.
A number of countries have established nationwide efforts to collect genetic variant data. The Australian Node of the Human Variome Project was the first official HVP Country Node, established in Australia in 2009. Funded by the Australian federal government, the project played a role in installing and testing a data collection system in diagnostic laboratories. The initial phase was completed in mid-2011 and the data was made accessible to researchers, clinicians and diagnostic labs throughout the country. The Australian Node does not currently share data internationally. In China, by using the LOVD platform, the Centre for Genetic and Genomic Medicine has begun their data collection in collaboration with healthcare industry, basic research organisations, and industry partners. In the United Kingdom, using proprietary software, the Diagnostic Mutation Database (DMuDb http://www.ngrl.org.uk/Manchester/dmudb.html) was formed to collect data directly from diagnostic laboratories. A Consortium of Arab Genetics Societies (CAGS) developed a database of disease diagnosed in Arab populations . In France, the Universal Mutation Database (UMD http://www.umd.be) has served as a central store for genetic data produced in a network of French laboratories. The UMD software is tailored specifically for a variety of genes associated with cancer and genetic diseases .
Endeavours to centralise genetic variants does not necessarily follow national boundaries or disease priorities. For example, the Faroe Islands, with a population of 50,000 has planned on sequencing the entire population . This will expand the focus from a small number of highly prevalent diseases in the Faroes, to a more comprehensive approach that will bring personalised medicine based on each individual’s genetic sequence.
Genome-wide variant databases
The other main type of variant database are large centralised collections of variants from all genes in the genome. One of the earliest and most well-known is dbSNP (http://0-www.ncbi.nlm.nih.gov.brum.beds.ac.uk/SNP), which collates variants from humans and other organisms . It’s collection of variants is not limited by disease-association or other criteria, so it is a clearing-house for all types of variation. ClinVar is a recent initiative of the National Center for Biotechnology Information (NCBI) to centralise variants from submitting organisations, particularly information from diagnostic laboratories. It aims to display the assertions regarding the variant’s impact on phenotype, and provides free access to the data. The Human Gene Mutation Database (HGMD) collates genetic variants from published literature. It is available to registered users in free and commercial versions—with the paid subscription providing the most updated data .
Initiating an HVP country node: the Malaysian experience
The Malaysian Human Variome Project (MyHVP) (http://hvpmalaysia.kk.usm.my/) was launched on the 9th October 2010. To date, 71 individuals from 12 Malaysian universities and academic institutions form the membership of MyHVP. MyHVP has succeeded in developing an online portal for the mutation of genes related to genetic diseases prevalent in Malaysia and also the Malay whole genome SNP data. MyHVP marks a new horizon for genetic activities in Malaysia and provides a database on genetic variation that relates to the Malaysian population. The most recent development is the establishment of the Southeast Asia (SEA) regional node of the Human Variome Project (HVP SEA Node), which is expected to bring together individuals working in diagnostics and clinical care within Malaysia and Southeast Asia (SEA). The HVP SEA Node was established through Malaysia’s position as the regional role model in genomic research and diagnostic services especially for Southeast Asian developing countries. It is believed that the formation of MyHVP will be able to assist these countries by providing training and education in order to increase public awareness on the importance of genetics and genomics in health care. By emphasizing the four areas of activities for the Human Variome Project which are setting normative functions, behaving ethically, sharing knowledge and building capacity, MyHVP will ultimately be a referral center for SEA variome activities. This will elevate the status, enhance the visibility and highlight the contributions of Malaysia in the field of genetics, genomics and variomics.
Administrative activities of a country node
There are diverse issues that needed to be considered in the formation of HVP Country Node: medical and genetic information privacy, Information Technology, Ethical/Legal/Social Issues, (ELSI), and organisational structure. A wide variety of expertise and co-operation between different groups is required to successfully implement a country node. The critical component in the initiation and development of the Country Node is a local well-informed and enthusiastic champion to drive the project forward. Most importantly, an HVP Country Node should be formed in association with the respective local human genetics/genomics society. Therefore, the formation of MyHVP received full support not only from the highest administration level of the university, but also from local societies such as Genetics Society of Malaysia, the Malaysian Society of Human Genetics, the Medical Genetics Society of Malaysia, and the Malaysian Society of Bioinformatics and Computational Biology. The Malaysian Ministry of Sciences, Technology and Innovation (MOSTI) and Ministry of Education (MOE) supported the project at several government levels including the Malaysian Ambassador to UNESCO. Creating an HVP Country Node also requires support from diverse stakeholders, from patient advocacy groups through local and national government agencies. MyHVP received the funding from Universiti Sains Malaysia through APEX Grant (1002/PPSP/910343) with the amount RM790,959.32 since November 2012 to set up the MyHVP Country Node. This amount is for advocacy of MyHVP and genomic research such as the sequencing project for the Malay ethnicities. At the administrative level, support from clinicians, diagnostic personnel, geneticists, bioinformaticians and other important stakeholders within the country has helped in initiating and sustaining the project.
The ICT infrastructure system
The Malaysian Node of the Human Variome Project (MyHVP) Database used open source software in the development of the variation and mutation databases. The database was created to organise, store and distribute variations and mutations that are related to population specific Malaysian ethnic groups. The following freely available open source software uses the PHP scripting language v.4.2.0 and up (http://www.php.net), and MySQL database package v.3.23.33 and up (http://www.mysql.com). The MyHVP Database has been constructed based on a three-tier architecture model i.e. client, web and database. PHP scripts are used as a common gateway interface (CGI) for sending and receiving data between the front end user/client and the database server. To query data, users need to enter or choose a keyword such as SNP ID or chromosome number or Gene ID. The Apache web server then transforms the query into SQL for it to be requested from MySQL database.
In addition, MyHVP is planning to implement an LOVD system, which is also written in PHP and uses MySQL open source software. It was developed to allow the easy creation and maintenance of a gene sequence variation database using the internet. The gene-centred design of the database follows the recommendations of the Human Genome Variation Society (HGVS http://www.hgvs.org/) and focuses on ease of use and flexibility. The newest LOVD version 3, released late 2012, also allows storage of Massively-Parallel Sequencing data, which often results in large numbers of variants found in between genes as well. To ensure the use of unambiguous sequence variant descriptions in newly submitted data, LOVD interacts with Mutalyzer  to apply the HGVS human nomenclature guidelines to check and enforce correct sequence variant descriptions. The usual focus of LOVD is the connection between a gene and a heritable disease. Sequence variants found in individuals are imported or submitted into the database, together with information about whether they could be causally related to the disease. Specialized doctors (clinical geneticists) can use LOVD disease specific databases to assist in interpreting diagnostic sequencing data and advise patients confirmed as carrying a genetic disease. Ideally, if a patient has been screened for mutations and one has been found, information in LOVD can assist in the diagnosis and progress of this disease. By typing genesymbol.lovd.nl onto one’s browser, the user will be connected directly to the web browser and LOVD database displaying a list of choices for the corresponding gene.
Ethical/legal/social issues (ELSI)
An important aspect of the development of a Country Node is the multicultural, ethical and legal issues that might contribute to problems in submitting the genetic data. MyHVP will endeavour to resolve these questions over time as they develop in the Malaysian context. Among the issues analysed is whether one has a right to know or a right not to know genetic information. This is in line with the UNESCO Universal Declaration on the Human Genome and Human Rights which states in Article 5c the right of every individual to choose whether or not to be informed of the results and consequences. Currently, there exists no regulatory framework that control genetic testing, screening and gene therapy in Malaysia.
Obtaining consent from human subjects and patients is crucial to any medical testing and research. A survey of research institutes in Malaysia has revealed that there is no standard form and practice in obtaining consent from human subjects. Yet obtaining effective consent from human subjects is key defence to any possible allegation of medical malpractice.
Malaysia’s population comprises many ethnic groups, whereby the total population is 28.3 million, with the Malays comprised 63 % of the total population, followed by Chinese (28 %), Indians (8 %), and other ethnic groups (1 %) . Most of them are actually descended from Javanese, Bugis, and Minang sailors who came from Indonesia, during the 17th to early 20th centuries. The vast majority of ethnic Malaysian Chinese came from the Fujian and Guangdong provinces in Southern China. Malaysian Indians are a group of Malaysians largely descended from those who migrated from southern India during the British colonization of Malaya.
The wide genetic variation produced from the multiracial population will enable researchers to conduct comparative studies between matched cohorts with and without disease. Discovering these variations will provide fundamental new insight into the pathogenesis, diagnosis and treatment of human diseases and towards the development of personalized medicine. Thus, besides being responsible for the funding, collection and data storage, each Country Node needs to ensure the handling of the data is according to the nation’s own law in an ethical and culturally sensitive manner. To alleviate patients’ privacy issues in relation to the database records, the curator needs to have clear guidelines to solve the challenges. The ethical issues in the data-basing of mutations have been discussed seriously especially in the Islamic perspective and recent attempts have been made to tailor some important guidelines from UNESCO, HUGO and WHO that can fit the local curating of phenotype/genotype data [11, 12].
Another issue that surrounds the use of genetic data is when genetic information is taken from corpses. The issue that arises would be the prior informed consent of the family concerned which gives rise to the question of ownership of the corpse. This is an active area for research in terms of genealogy and paternity testing but also in the genetics of diseases. At this juncture, it is important to look into the Islamic position which places due respect on the dead and the rights owed to them and a consideration will need to be made as to whether the collection of genetic information from dead bodies is against the Islamic Law.
Collection of DNA samples from live donors implicates confidentiality issues. The medical data is considered to be sensitive data and has raised an argument that any form of DNA sampling and collection would also have to comply with the personal data principles. Therefore, the handling of such data requires extreme care and explore other duties of confidentiality that may arise from common law and other statutory instruments such as Medical Act 1971, Private Healthcare Facilities and Services Act 1998, Child Act 2001. What other usage could a researcher/doctor make of medical/genetic data without offending the data privacy principles? On a broader scale, the collection of DNA samples could also implicate privacy issues. With the enactment of the Personal Data Protection Act 2010 , there is a wide exception given for research. However, would the possible aim of developing commercial applications to the research output exclude these activities from the research exception? This is not made clear in the Act.
MyHVP data collection results
In the MyHVP Database, the Malay ethnic group has been the first to have available online the 291,718 SNPs dataset which was obtained by genotyping the SNPs of 103 healthy individuals from Champa, Kelantan, Bugis, Banjar, Kedah and Jawa subgroups of Malays. The mutation database also includes 143 mutations from 16 genes related to diseases common in the Malay ethnic group. However, the number of mutations will be increasing as there are on-going studies on disease causing variants. In fact, MyHVP database has curators who are responsible to add new mutations monthly. The current data on these mutations was collected from results published in journals . All mutational data in the MyHVP database were recorded based on the Human Genome Variation Society (HGVS) nomenclature (http://www.hgvs.org/mutnomen/standards.html) (Fig. 1). Detailed description of sequence variants is at the Table 1.
Collaboration with national and international experts will facilitate the free and open sharing of annotated and curated information. By following the experiences of InSiGHT, the Australian Node of the Human Variome Project and other databases, new processes and systems are under development at MyHVP which are adapted to Malaysian legal and ethical frameworks. A new version of LOVD known as LOVD v3 which is available online will enable more complex data submissions. With the increasing number of data entries in future, the database user interface will be further developed to allow for much easier navigation and customized display of database query results. It is hoped that this article will encourage the systematic integration of variant submission in normal laboratory practice.
International Society for Gastrointestinal Hereditary
Malaysian Node of the Human Variome Project
Human Variome Project
Leiden Open Variation Database
gene/disease specific databases
Universal Mutation Database
diagnostic mutation database
Consortium of Arab Genetics Societies
- HVP SEA Node:
Southeast Asia(SEA) regional node of HVP
Malaysian Ministry of Sciences, Technology and Innovation
Ministry of Education
The United Nations Educational, Scientific and Cultural Organization
National Center for Biotechnology Information, (UCSC Genome Browser): University of California, Santa Cruz
structured query language
Human Genome Variation Society
common gateway interface
single nucleotide polymorphism
Human Genome Organization
World Health Organization
Assisted Reproductive Technology
ethical, legal and social issues
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NNL reviewed the literature and wrote the manuscript. JP, HFH, FM, TS and AZL contributed to writing the manuscript. ZA served as the principal investigator of the project. All authors contributed to the writing of the manuscript and have read and approved the final submitted version. All authors read and approved the final manuscript.
The authors thank the late Professor Richard GH Cotton for critically reviewing the manuscript. Special thank also goes to University Sains Malaysia for the financial support during the sabbatical leave at the Royal Melbourne Hospital and the Australian Node of the Human Variome Project (HVPA). We would like to acknowledge the funding support for this project; Apex grant: 1002/PPSP/910343 “USM As Anchor for The Malaysian Node of Human Variome Project” and Research University (Team)(RUT) Grant: 1001/PPSP/853003 “Targeted Genetic Modifiers And Socio- Environmental Influences Contributing To Phenotypic Heterogeneity Of Hb E/B Thalassemia”. Not forgetting to all HVPA members who have expressed their support for this manuscript: Heather J Howard, Rania Horaitis, Timothy D Smith and Helen M Robinson.
Members of Malaysian Node of the Human Variome Project (MyHVP)
Abdul Halim Fikri Hashim1&2, Abhimanyu Veerakumarasivam3, Ahmad Zubaidi Bin Abdul Latif2, Amir Feisal Merican Aljunid Merican4, Amirul Hisyam Mahmud1, Arif Anwar5, Ariffin Nasir1, Atif Amin Baig2, Azlin Ithnin6, Azlina Ahmad Anuar7, Che Nor Ayunni Che Zainul Bahri1, Effirul Ikhwan Ramlan8, Endom Ismail9, Hafiza Alauddin6, Husna Mohd Zaini9, Hussein Ali Osman1, Ida Madieha Azmi10, Lim Kong Boon11, Liza Sharmimi Ahmad Tajudin1, Majdah Zawawi10, Marini Ramli1, Mohamad Ros Sidek1, Mohamed Irwan Shah4, Mohamed Saifulaman Mohamed Said12, Mohammad Redzuan Othman13, Mohammed Rizman Idid4, Mohd Amin Jalaludin14, Mohd Asuad Mat Jelani1, Mohd Hanif Ridzuan Mat Daud15, Mohd Mokhtar Saidin16, Muhammad Farid Johan1, Ng Chong Han11, Nik Norliza Nik Hassan17, Noor Diana Abdul Rashid1, Noorizan Abd. Majid1, Noraishah Mydin Haji Abdul Aziz18, Noratifah Mohd. Adam1, Nur Aini Abd. Rashid19, Nuraida Md Tamrin15, Nurfazreen Mohd. Nasir1, Nurul Fatihah Azman1, Nurul Yuziana Mohd Yusof9, Padillah Yahya1, Raja Zahratul Azma Raja Sabudin6, Rosline Hassan1, Rosnah Bahar1, Rosnah Mohd Zain19, Rosni Abdullah20, Rozita Rosli21, Sarifah Hanafi1, Sarina Mat Yasin15, Sarina Sulong1, Seah Lay Hong11, Shafini Mohd Yusof1, Siti Aishah Meor Zul Kefli’Auni1, Suhaili Abu Bakar22, Suriati Mohamed Sani6, Surini Yusoff1, Syarifah Anis Wafa Syed Mohd Azmi6, Tan Soon Guan23, Thong Meow Keong24, Wahidah Husain19, Wan Khairunnisa Wan Juhari1, Wan Nurhayati Wan Hanafi12, Wan Rohani Wan Taib2, Wan Zaidah Hemato1, Yuzine Isa15, Zabidi Azhar Hussin1, Zahurin Mohamed25, Zarina Abdul Latiff26, Zilfalil Alwi1
1School of Medical Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu Kelantan, Malaysia
2Faculty of Medicine, Kota Campus, Universiti Sultan Zainal Abidin (UniSZA), Jln. Sultan Mahmood, 20400 Kuala Terengganu, Terengganu, Malaysia
3Perdana University Graduate School of Medicine, Perdana University, Serdang 43400, Selangor Darul Ehsan, Malaysia
4Institute of Biological Sciences, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
5Sengenics Sdn. Bhd, High Impact Research Secretariat, Level 1, High Impact Research Building, University of Malaya Lembah Pantai, 50603 Kuala Lumpur, Malaysia
6Department of Pathology, UKM Medical Centre, Jalan Yaacob Latif Bandar Tun Razak Cheras, 56000 Kuala Lumpur, Malaysia.
7Department of Biomedical Science, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
8Department of Artificial Intelligence, Faculty of Computer Science & Information Technology Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
9School of Biosciences and Biotechnology, Universiti Kebangsaan Malaysia, 43600, Bangi Selangor, Malaysia
10Ahmad Ibrahim Kulliyyah of Laws, International Islamic University Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia
11Department of Chemistry Malaysia, Jalan Sultan, 46661 Petaling Jaya, Selangor, Malaysia
12Faculty of Applied Science, Universiti Teknologi Mara, 40450 Shah Alam, Selangor Malaysia
13Department of History, Faculty of Arts and Social Sciences Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
14Department of Otorhinolaringology, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
15Faculty of Resource Science & Technology, 94300 Kota Samarahan, Sarawak Malaysia
16The Centre for Archaeology Research Malaysia, Universiti Sains Malaysia, 11800 Penang, Malaysia
17School of Health Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan Malaysia
18Department of Parasitology, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
19Department of Oro-Maxillofacial Surgical & Medical Sciences, Faculty of Dentistry Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
20School of Computer Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
21Faculty of Medicine and Health Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Malaysia
22Dept. of Biomedical Science, Fact of Medicine, Health Sciences, 43400 UPM, Serdang, Selangor Malaysia
23Faculty Of Biotechnology And Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Malaysia
24Department of Paediatrics, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
25Department of Pharmacology, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
26UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Jalan Ya’acob Latiff, Bandar Tun Razak,56000 Cheras, Kuala Lumpur, Malaysia
The authors declare that they have no competing interests
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Cite this article
Nik Hassan, N.N., Plazzer, J., Smith, T.D. et al. Harmonizing the interpretation of genetic variants across the world: the Malaysian experience. BMC Res Notes 9, 125 (2016) doi:10.1186/s13104-015-1798-0
- Sharing genetic data
- Variant database
- Variation nomenclature