Files in this Data Supplement:

• Supplemental file 1 - Legends to Fig. S1 to S4
  Zipped MS Word document, 13 KB.
• Supplemental file 2 - Fig. S1 (Xenopus centrin 2/centrin shares 85% identity with human centrin 2)
  Zipped EPS file, 486 KB.
• Supplemental file 3 - Fig. S2 (Lack of centrin interaction with multiple non-Nup107-160 complex nucleoporins)
  Zipped EPS file, 602 KB.
• Supplemental file 4 - Fig. S3 (Additional conditions demonstrating localization of centrin 2 at the nuclear rim)
  Zipped EPS file, 3.1 MB.
• Supplemental file 5 - Fig. S4 (Centrin 2 siRNA disrupts mRNA and protein export but not protein import)
  Zipped EPS file, 5.5 MB.