About the Authors

Marco Matejcic

Affiliations International Centre for Genetic Engineering and Biotechnology, Cape Town Component, Observatory, Cape Town, South Africa, Division of Medical Biochemistry and IIDMM, UCT Faculty of Health Sciences, Cape Town, South Africa

DongPing Li

Affiliations International Centre for Genetic Engineering and Biotechnology, Cape Town Component, Observatory, Cape Town, South Africa, Division of Medical Biochemistry and IIDMM, UCT Faculty of Health Sciences, Cape Town, South Africa

Natalie J. Prescott

Affiliation Department of Medical and Molecular Genetics, King's College London, King's Health Partners, Guy's Hospital, London, United Kingdom

Cathryn M. Lewis

Affiliations Department of Medical and Molecular Genetics, King's College London, King's Health Partners, Guy's Hospital, London, United Kingdom, Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, London, United Kingdom

Christopher G. Mathew

Affiliation Department of Medical and Molecular Genetics, King's College London, King's Health Partners, Guy's Hospital, London, United Kingdom

M. Iqbal Parker

iqbal.parker@uct.ac.za

Affiliations International Centre for Genetic Engineering and Biotechnology, Cape Town Component, Observatory, Cape Town, South Africa, Division of Medical Biochemistry and IIDMM, UCT Faculty of Health Sciences, Cape Town, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MM CGM MIP. Performed the experiments: MM DPL. Analyzed the data: MM NJP CML CGM MIP. Contributed reagents/materials/analysis tools: CGM MIP. Wrote the paper: MM DPL NJP CML CGM MIP. Sample collection and data entry: MM DPL MIP.