title: Absence of commonly reported leucine-rich repeat kinase 2 mutations in Eastern Indian Parkinson's disease patients.
abstract: BACKGROUND
  Pathogenic mutations in leucine-rich repeat kinase 2 (LRRK2; PARK8) encoding dardarin, implicated in patients with autosomal dominant and sporadic Parkinson's disease (PD) among different ethnic groups (Ashkenazi Jews, North African Arabs, Basques) might be of some help in diagnostic screening and genetic counseling.
  
  
  OBJECTIVE
  We investigated the seven common mutations spanning exons 31, 35, and 41 reported in the LRRK2 gene among Eastern Indian patients with PD.
  
  
  METHODS
  Mutations R1441G, R1441C, R1441H, G2019S, Y1699C, I2020T, and I2012T were screened in 320 individuals (PD, 150 and controls, 170) by direct sequencing.
  
  
  RESULTS
  We did not observe any of these abovementioned mutations in our studied individuals.
  
  
  CONCLUSIONS
  We conclude that these mutations are rare causes of PD in the Eastern Indian population and, therefore, of little help for genetic counseling and diagnostic purposes.
authors: Anthropological Survey of India, Kolkata, India.
authors: Jaya
authors: J
authors: Sanyal
authors: Biswanath
authors: B
authors: Sarkar
authors: Sabyasachi
authors: S
authors: Ojha
authors: Tapas Kumar
authors: TK
authors: Banerjee
authors: Bidhan Chandra
authors: BC
authors: Ray
authors: Vadlam Raghavendra
authors: VR
authors: Rao
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004252:DNA Mutational Analysis; D005006:Ethnicity / Q000235:genetics; D005091:Exons / Q000235:genetics; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D006801:Humans; D007194:India / Q000453:epidemiology; D000071158:Leucine-Rich Repeat Serine-Threonine Protein Kinase-2; D008297:Male; D008875:Middle Aged; D020125:Mutation, Missense; D010300:Parkinson Disease / Q000453:epidemiology / Q000208:ethnology / Q000235:genetics*; D017354:Point Mutation; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*
chemical_list: C495280:LRRK2 protein, human; D000071158:Leucine-Rich Repeat Serine-Threonine Protein Kinase-2; D017346:Protein Serine-Threonine Kinases