A) Schematic of the telomere and functions of the proteins affected in dyskeratosis congenita and the related telomere biology disorders. Protein names are shown. Abbreviations: TCAB1, telomere Cajal body associated protein 1 (gene name: WRAP53); TIN2, TRF1-interacting nuclear factor 2 (TINF2); NOP10, NOP10 ribonucleoprotein (NOP10); NHP2, NHP2 ribonucleoprotein (NHP2); DKC1, dyskerin (DKC1); TERC, telomerase RNA component (TERC); TERT, telomerase (TERT); RTEL1, regulator of telomere elongation helicase 1 (RTEL1); CTC1, CTS telomere maintenance complex component 1 (CTC1)
B) Approximate timeline and methods of gene discovery in DC