FKTN Antibody – Rabbit Polyclonal

Function: May be a glycosyltransferase which participates in glycosylation of alpha-dystroglycan/DAG1. May interact with and reinforce a large complex encompassing the outside and inside of muscle membranes. Could be involved in brain development. Ref.8

Subcellular location: Golgi apparatus membrane; Single-pass type II membrane protein

By similarity.

Tissue specificity: Widely expressed with highest expression in brain, heart, pancreas and skeletal muscle. Expressed at similar levels in control fetal and adult brain, but is much reduced in Fukuyama-type congenital dystrophy (FCMD) brains. Expressed in migrating neurons, including Cajar-Retzius cells and adult cortical neurons, as well as hippocampal pyramidal cells and cerebellar Purkinje cells. No expression observed in the glia limitans, the subpial astrocytes (which contribute to basement membrane formation) or other glial cells. In the FCMD brain, neurons in regions with no dysplasia show fair expression, whereas transcripts are nearly undetectable in the overmigrated dysplastic region. Ref.7

Involvement in disease: Muscular dystrophy-dystroglycanopathy congenital with brain and eye anomalies A4 (MDDGA4) [MIM:253800]: An autosomal recessive disorder characterized by congenital muscular dystrophy associated with cobblestone lissencephaly and other brain anomalies, eye malformations, profound mental retardation, and death usually in the first years of life. Included diseases are the more severe Walker-Warburg syndrome and the slightly less severe muscle-eye-brain disease.Note: The disease is caused by mutations affecting the gene represented in this entry. Ref.6 Ref.7 Ref.8 Ref.9 Ref.12 Ref.13 Ref.18Muscular dystrophy-dystroglycanopathy congenital without mental retardation B4 (MDDGB4) [MIM:613152]: An autosomal recessive disorder characterized by congenital muscular dystrophy and evidence of dystroglycanopathy. Features included increased serum creatine kinase, generalized weakness, mild white matter changes on brain MRI, and absence of mental retardation.Note: The disease is caused by mutations affecting the gene represented in this entry. Ref.6 Ref.7 Ref.8 Ref.9 Ref.10 Ref.11 Ref.17 Ref.18Muscular dystrophy-dystroglycanopathy limb-girdle C4 (MDDGC4) [MIM:611588]: An autosomal recessive degenerative myopathy characterized by progressive weakness of the pelvic and shoulder girdle muscles, and elevated serum creatine kinase. MDDGC4 has no brain involvement and a remarkable clinical response to corticosteroids.Note: The disease is caused by mutations affecting the gene represented in this entry. Ref.6 Ref.7 Ref.8 Ref.9 Ref.15 Ref.19Cardiomyopathy, dilated 1X (CMD1X) [MIM:611615]: A disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.Note: The disease is caused by mutations affecting the gene represented in this entry. Ref.6 Ref.7 Ref.8 Ref.9 Ref.14

Sequence similarities: Belongs to the LicD transferase family.