Association of the PTPN22 C1858T single-nucleotide polymorphism with rheumatoid arthritis phenotypes in an inception cohort.

Arthritis, Rheumatoid/diagnosis,epidemiology,genetics Arthrography Cohort Studies Early Diagnosis Gene Frequency Genetic Predisposition to Disease Humans Joints/pathology Mutation, Missense Netherlands/epidemiology Phenotype Polymorphism, Single Nucleotide Protein Tyrosine Phosphatase, Non-Receptor Type 22 Protein Tyrosine Phosphatases/genetics Severity of Illness Index

PTPN22 protein, human Protein Tyrosine Phosphatase, Non-Receptor Type 22 Protein Tyrosine Phosphatases