Cited by 72melanin and skin pigmentationGenetic Associations and EpidemiologyGenetic Mapping and Diversity in Plants and Animals

Promoter polymorphisms in the MATP(SLC45A2) gene are associated with normal human skin color variation

Graf, Justin, Voisey, Joanne, Hughes, Ian, van Daal, Angela·2007·Human Mutation

Abstract

Human pigmentation is a complex physical trait in which the membrane-associated transporter protein (MATP) plays an important role as it is involved in intracellular processing and trafficking of melanosomal proteins. Recently, pathogenic mutations in MATP have been shown to cause oculocutaneous albinism type 4, while other polymorphisms are known to have a role in normal pigmentation variation. We previously reported significant associations of two coding region polymorphisms with hair, skin, and eye color in Caucasians. Here we characterize the promoter region of MATP identifying two new transcription start sites and a novel duplication (c.-1176_-1174dupAAT). A total of 700 individuals from five different population groups (529 Caucasians, 38 Asians, 46 African Americans, 47 Australian Aborigines, and 40 Spanish Basques) were genotyped for known promoter polymorphisms c.-1721C>G (rs13289) and c.-1169G>A (rs6867641), as well as c.-1176_-1174dupAAT. Allele frequencies of all three polymorphisms were significantly different between population groups. In Caucasians, the -1721G, +dup, and -1169A alleles were significantly associated with olive skin color. The three promoter polymorphisms were found to be in linkage disequilibrium with each other but not with the two previously reported coding region polymorphisms. Functional analyses in a melanoma cell line showed that the promoter haplotype -1721G, +dup, -1169A significantly decreased MATP transcription. This report provides further evidence for the involvement of MATP in normal pigmentation variation by identifying associations between MATP alleles and skin color variation in Caucasians and demonstrating a functional significance of these polymorphisms.

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Crossref · 10.1002/humu.20504

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Authors
Graf, J., Voisey, J., Hughes, I., & van Daal, A.
Affiliations
Queensland University of Technology (AU)
Corresponding author
Graf, Justin
Venue
Human Mutation
Published
2007-07
Volume
28
Issue
7
Pages
710-717
ISSN
  • 1059-7794 (ISSN-L)
  • 1098-1004
OpenAlex
W2020662754
Cited by
72
References
29
Citations by year
2025: 3 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 4 · 2017: 4 · 2016: 1 · 2015: 4 · 2014: 4 · 2013: 2 · 2012: 3
FWCI
3.99
Type
journal article
Language
en
Open access
closed
Locations
  • Human Mutation (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
Keywords
MatP, SLC45A2, promoter polymorphism, skin pigmentation, skin color variation, transcription start sites, linkage disequilibrium, allele frequency, promoter haplotypes, Caucasians
MeSH terms
Antigens, Neoplasm, Base Sequence, Chromatography, High Pressure Liquid, Haplotypes, Humans, Luciferases, Promoter Regions, Genetic, Skin Pigmentation, Linkage Disequilibrium, Genes, Reporter, DNA Primers, DNA, Complementary, Polymorphism, Single Nucleotide, Membrane Transport Proteins, White People, Cell Line, Tumor

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