Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

[EX Q]: One Shell Square is a 51-story, 697-foot (212 m) skyscraper designed in the International style by Skidmore, Owings and Merrill, located at 701 Poydras Street in the Central Business District of New Orleans, Louisiana.
[EX A]: The designer for One Shell Square was?

[EX Q]: Frederik Helstrup Jensen (born 16 March 1993) is a Danish footballer who plays for Helsingborgs IF of the Allsvenskan in Sweden.
[EX A]: What was the name of Frederik Helstrup's team?

[EX Q]: LYST is a large cytosolic protein that influences the biogenesis of lysosome-related organelles, and mutation of the encoding gene, LYST, can cause Chediak-Higashi syndrome. Recently, Lyst-mutant mice were recognized to also exhibit an iris disease resembling exfoliation syndrome, a common cause of glaucoma in humans. Here, Lyst-mutant iris phenotypes were used in a search for genes that influence Lyst pathways. In a candidate gene-driven approach, albino Lyst-mutant mice homozygous for a mutation in Tyr, whose product is key to melanin synthesis within melanosomes, exhibited complete rescue of Lyst-mutant iris phenotypes. In a genetic background-driven approach using a DBA/2J strain of congenic mice, an interval containing Tyrp1 enhanced Lyst-dependent iris phenotypes. Thus, both experimental approaches implicated the melanosome, an organelle that is a potential source of oxidative stress, as contributing to the disease phenotype. Confirming an association with oxidative damage, Lyst mutation resulted in genetic context-sensitive changes in iris lipid hydroperoxide levels, being lowest in albino and highest in DBA/2J mice. Surprisingly, the DBA/2J genetic background also exposed a late-onset neurodegenerative phenotype involving cerebellar Purkinje-cell degeneration. These results identify an association between oxidative damage to lipid membranes and the severity of Lyst-mutant phenotypes, revealing a new mechanism that contributes to pathophysiology involving LYST.
[EX A]:
Which syndrome is associated with mutations in the LYST gene?