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

The first astronomer to record the Butterfly Cluster's existence was Giovanni Battista Hodierna in 1654.
What year was Butterfly Cluster found?

The original construction permit for the station was granted on July 1, 1983, and the WLKZ call letters were assigned on October 11; it took to the air on February 1, 1985, and a license to cover was granted on June 4, 1985.
What is year of inception of WLKZ?

Schimke immuno-osseous dysplasia (OMIM 242900) is an uncommon autosomal-recessive multisystem disease caused by mutations in SMARCAL1 (swi/snf-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a-like 1), a gene encoding a putative chromatin remodeling protein. Neurologic manifestations identified to date relate to enhanced atherosclerosis and cerebrovascular disease. Based on a clinical survey, we determined that half of Schimke immuno-osseous dysplasia patients have a small head circumference, and 15% have social, language, motor, or cognitive abnormalities. Postmortem examination of 2 Schimke immuno-osseous dysplasia patients showed low brain weights and subtle brain histologic abnormalities suggestive of perturbed neuron-glial migration such as heterotopia, irregular cortical thickness, incomplete gyral formation, and poor definition of cortical layers. We found that SMARCAL1 is highly expressed in the developing and adult mouse and human brain, including neural precursors and neuronal lineage cells. These observations suggest that SMARCAL1 deficiency may influence brain development and function in addition to its previously recognized effect on cerebral circulation.

Mutations in which gene cause Schimke immune-osseous dysplasia?

