The Covington County, Alabama sales tax is 6.00% , consisting of 4.00% Alabama state sales tax and 2.00% Covington County local sales taxes.The local sales tax consists of a 2.00% county sales tax. The Covington County Sales Tax is collected by the merchant on all qualifying sales made within Covington County.
CASK-related intellectual disability, as its name suggests, is caused by mutations in the CASK gene. This gene provides instructions for making a protein called calcium/calmodulin-dependent serine protein kinase (CASK).
A number sign (#) is used with this entry because Cockayne syndrome B (CSB) is caused by mutation in the gene encoding the group 6 excision repair cross-complementing protein (ERCC6; 609413).Cockayne syndrome A (CSA; 216400) is caused by mutation in the ERCC8 gene (609412) on chromosome 5q11.Among patients with Cockayne syndrome, approximately 80% have mutations in the ERCC6 gene (Licht et al., 2003). For a phenotypic description and a discussion of genetic heterogeneity of Cockayne syndrome, see 216400. number sign (#) is used with this entry because Cockayne syndrome B (CSB) is caused by mutation in the gene encoding the group 6 excision repair cross-complementing protein (ERCC6; 609413).