title: A novel P755L mutation in LRRK2 gene associated with Parkinson's disease.
abstract: Parkinson's disease is a common neurodegenerative disorder. The identification of leucine-rich repeat kinase 2 (LRRK2) gene mutations as a cause of Parkinson's disease has greatly expanded our knowledge of the genetic and molecular pathogenesis of this disorder. By denaturing high-performance liquid chromatography and gene sequencing in patients and controls, we identified a novel frequent heterozygous 2264C-->T substitution, which causes a proline-to-leucine mutation (P755L) in LRRK2 gene. In our sample of 598 patients of Chinese Han ancestry, 12 cases carried the same LRRK2 mutation. Our results indicated that this single mutation was implicated in 2% of sporadic patients. We suggest that testing for this mutation will be important in the management and genetic counseling of patients with Parkinson's disease.
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Nanjing Medical University, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Wu
authors.forename: Yanying
authors.initials: Y
authors.lastname: Zeng
authors.forename: Xinsheng
authors.initials: X
authors.lastname: Ding
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Li
authors.forename: Wenlei
authors.initials: W
authors.lastname: Li
authors.forename: Hairong
authors.initials: H
authors.lastname: Dong
authors.forename: Senqing
authors.initials: S
authors.lastname: Chen
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Zhang
authors.forename: Guojian
authors.initials: G
authors.lastname: Ma
authors.forename: Juan
authors.initials: J
authors.lastname: Yao
authors.forename: Xiaoxuan
authors.initials: X
authors.lastname: Deng
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004252:DNA Mutational Analysis; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007930:Leucine / Q000235:genetics*; D000071158:Leucine-Rich Repeat Serine-Threonine Protein Kinase-2; D008297:Male; D008875:Middle Aged; D009154:Mutation / Q000235:genetics; D010300:Parkinson Disease / Q000235:genetics*; D011392:Proline / Q000235:genetics*; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods / Q000706:statistics & numerical data
chemical_list: D012333:RNA, Messenger; D011392:Proline; C495280:LRRK2 protein, human; D000071158:Leucine-Rich Repeat Serine-Threonine Protein Kinase-2; D017346:Protein Serine-Threonine Kinases; D007930:Leucine