We previously reported exome sequencing in a short‐rib thoracic dystrophy (SRTD) cohort, in whom recessive mutations were identified in SRTD‐associated genes in 10 of 11 cases. A heterozygous stop ...mutation in the known SRTD gene WDR60 was identified in the remaining case; no novel candidate gene/s were suggested by homozygous/compound heterozygous analysis. This case was thus considered unsolved. Re‐analysis following an analysis pipeline update identified a homozygous mutation in C21orf2 (c.218G > C; p.Arg73Pro). This homozygous variant was previously removed at the quality control stage by the default GATK parameter “in‐breeding co‐efficient.” C21orf2 was recently associated with both Jeune asphyxiating thoracic dystrophy (JATD) and axial spondylometaphyseal dysplasia (axial SMD); this particular mutation was reported in homozygous and compound heterozygous state in both conditions. Our case has phenotypic features of both JATD and axial SMD; and the extent of thoracic involvement appears more severe than in other C21orf2‐positive cases. Identification of a homozygous C21orf2 mutation in this case emphasizes the value of exome sequencing for simultaneously screening known genes and identifying novel genes. Additionally, it highlights the importance of re‐interrogating data both as novel gene associations are identified and as analysis pipelines are refined. Finally, the severity of thoracic restriction in this case adds to the phenotypic spectrum attributable to C21orf2 mutations.
Correction to: Leukemia (2013) 27, this issue; doi:10.1038/leu.2013.224 Since the publication of this article, the authors have identified an error contained in Figure 6 (panel c). FOXP1hi/HIP1Rlo ...has been incorrectly listed as FOXP1hi/HIP1Rhi. The correct figure appears below. The error has now been rectified, and the correct article appears in this issue.
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The challenge of achieving high resolution in binary reactions involving an outgoing high-energy neutron is solved by detecting the
-ray decay of populated excited states in an array of ...escape-suppressed HPGe detectors in coincidence with fast neutrons. The selectivity of the arrangement is of the order of 1 in 1000 and is demonstrated by
L
= 0 two-proton stripping to 7/2
-
2p-1h levels using the
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Co(
3
He,
)
61
Cu reaction at
E
lab
= 22.5 MeV. The observed relative two-proton stripping strengths are compared with large-basis shell-model calculations.
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