Steady-State Transcript Levels of the Porphobilinogen Deaminase Gene in Patients with Acute Intermittent Porphyria

Table 3.

The Solid-Phase Minisequencing Analysis of Steady-State mRNA Levels in Three Subjects with the Mutation 673C → T in the PBGD Gene

Sample Normal allele, incorporated [3H]dGTP (cpm ±s.e.) Mutant allele, incorporated [3H]dATP (cpm ±s.e.) Ratio mutant allele/ normalallele Mean ratio ± s.e. Mutant mRNA as a ratio of wild-type mRNA
Patient 1 465 ± 35 510 ± 20 1.10
 mild symptoms 527 ± 25 517 ± 13 0.98
516 ± 11 472 ± 15 0.92 1.04 ± 0.042 0.24
422 ± 35 458 ± 14 1.09
437 ± 53 499 ± 11 1.14
Patient 2 556 ± 49 511 ± 19 0.92
 acute attacks 501 ± 77 469 ± 16 0.94
511 ± 24 453 ± 23 0.89 0.88 ± 0.025 0.20
588 ± 21 484 ± 17 0.82
638 ± 6 518 ± 7 0.81
Patient 3 687 ± 20 769 ± 27 1.12
 symptom-free 561 ± 11 784 ± 13 1.40
580 ± 27 500 ± 38 0.86 1.02 ± 0.11 0.23
512 ± 21 450 ± 12 0.88
663 ± 22 556 ± 19 0.84
Patient 1 332 ± 12 1205 ± 36 3.63
 genomic DNA 275 ± 18 1208 ± 84 4.39
311 ± 10 1379 ± 52 4.44 4.34 ± 0.20 1.00
291 ± 3 1286 ± 45 4.43
305 ± 8 1469 ± 80 4.82
 healthy subject DNA 730 ± 46 16 ± 3 0.022 0.01
RT–PCR–H2O 74 ± 2 17 ± 1
PCR–H2O 19 ± 2 12 ± 1
H2O 14 ± 1 12 ± 1
  • Values have been corrected for background radioactivity of the corresponding blank controls (RT–PCR–H2O or PCR–H2O).

This Article

  1. Genome Res. 7: 1054-1060

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