What causes Cantu syndrome?

Causes. Cantú syndrome results from mutations in the ABCC9 gene. This gene provides instructions for making one part (subunit) of a channel that transports charged potassium atoms (potassium ions) across cell membranes.

What is Cantu syndrome?

Cantu syndrome is a rare disorder characterized by congenital hypertrichosis, neonatal macrosomia, a distinct osteochondrodysplasia, and cardiomegaly. The hypertrichosis leads to thick scalp hair which extends onto the forehead and to a general increase in body hair.

What is Zimmerman laband syndrome?

Laband syndrome, also known as Zimmerman-Laband syndrome, is an extremely rare genetic disorder characterized by abnormalities of the head and facial (craniofacial) area and the hands and feet. Most children with this disorder have abnormally large gums (gingival fibromatosis).

Which level of gene regulation is most important?

Answer and Explanation: In the eukaryotes, gene regulation is primarily important at the level of initiation of transcription.

What happens if gene expression is not regulated?

The control of gene expression is extremely complex. Malfunctions in this process are detrimental to the cell and can lead to the development of many diseases, including cancer.

What does the Pax 6 gene do?

This gene encodes paired box protein Pax-6, one of many human homologs of the Drosophila melanogaster gene prd. In addition to a conserved paired box domain, a hallmark feature of this gene family, the encoded protein also contains a homeobox domain.

How many PAX genes are there?

Pax Genes. The Pax gene family, consisting of 9 known members, is an important group of genes that are involved in many aspects of mammalian development (Fig. 4.8). The Pax genes are homologous to the Drosophila pair-rule segmentation genes (see Fig. 4.1). All Pax proteins contain a paired domain of 128 amino acids that binds to DNA.

What is the cytogenetic location of Pax6?

Cytogenetic location: 11p13 Genomic coordinates (GRCh38): 11:31,789,025-31,817,960 (from NCBI) PAX6, a member of the paired box gene family, encodes a transcriptional regulator involved in oculogenesis and other developmental processes.

What is the structure of the paired domain of Pax6?

The paired domain is composed of 2 distinct DNA-binding subdomains, the N-terminal subdomain (NTS) and the C-terminal subdomain (CTS), which bind respective consensus DNA sequences. The human PAX6 gene produces 2 alternatively spliced isoforms that have the distinct structure of the paired domain.