, Volume 9, Issue 1, pp 50-53

Complete sequence and polymorphism study of the human TYRP1 gene encoding tyrosinase-related protein 1

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The complete 24,667 nucleotide sequence spanning the human TYRP1 gene has been determined from the inserts of two overlapping lambda clones. A LINE-1 repeat element is immediately adjacent to and may demarcate the immediate 5′ promoter region of the gene. A search for polymorphism within the seven TYRP1 coding exons has been performed by an RNase mismatch detection procedure. Analysis of the TYRP1 gene in 100 Caucasian individuals of varying hair color has found no amino acid sequence variation nor revealed any hemizygous mutant allele in the hypopigmented phenotype of two 9p syndrome patients.