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Reviewed April 2011
What is the official name of the SGCB gene?
The official name of this gene is “sarcoglycan, beta (43kDa dystrophin-associated glycoprotein).”
SGCB is the gene's official symbol. The SGCB gene is also known by other names, listed below.
Read more about gene names and symbols on the About page.
What is the normal function of the SGCB gene?
The SGCB gene provides instructions for making the beta component (subunit) of a group of proteins called the sarcoglycan protein complex. The sarcoglycan protein complex is located in the membrane surrounding muscle cells. It helps maintain the structure of muscle tissue by attaching (binding) to and stabilizing the dystrophin complex, which is made up of proteins called dystrophins and dystroglycans. The large dystrophin complex strengthens muscle fibers and protects them from injury as muscles tense (contract) and relax. It acts as an anchor, connecting each muscle cell's structural framework (cytoskeleton) with the lattice of proteins and other molecules outside the cell (extracellular matrix).
How are changes in the SGCB gene related to health conditions?
Where is the SGCB gene located?
Cytogenetic Location: 4q12
Molecular Location on chromosome 4: base pairs 52,886,860 to 52,904,484
The SGCB gene is located on the long (q) arm of chromosome 4 at position 12.
More precisely, the SGCB gene is located from base pair 52,886,860 to base pair 52,904,484 on chromosome 4.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about SGCB?
You and your healthcare professional may find the following resources about SGCB helpful.
You may also be interested in these resources, which are designed for genetics professionals and researchers.
What other names do people use for the SGCB gene or gene products?
See How are genetic conditions and genes named? in the Handbook.
Where can I find general information about genes?
The Handbook provides basic information about genetics in clear language.
These links provide additional genetics resources that may be useful.
What glossary definitions help with understanding SGCB?
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (11 links)
The resources on this site should not be used as a substitute for professional medical care or advice. Users seeking information about a personal genetic disease, syndrome, or condition should consult with a qualified healthcare professional. See How can I find a genetics professional in my area? in the Handbook.