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Reviewed February 2007

What is the official name of the ENG gene?

The official name of this gene is “endoglin.”

ENG is the gene's official symbol. The ENG 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 ENG gene?

The ENG gene provides instructions for making a protein called endoglin. This protein is found on the surface of cells, especially in the lining of developing arteries. It forms a complex with growth factors and other proteins involved in the development of blood vessels. In particular, this complex is involved in the specialization of new blood vessels into arteries or veins.

Does the ENG gene share characteristics with other genes?

The ENG gene belongs to a family of genes called CD (CD molecules).

A gene family is a group of genes that share important characteristics. Classifying individual genes into families helps researchers describe how genes are related to each other. For more information, see What are gene families? in the Handbook.

How are changes in the ENG gene related to health conditions?

hereditary hemorrhagic telangiectasia - caused by mutations in the ENG gene

Dozens of mutations in the ENG gene have been found to cause hereditary hemorrhagic telangiectasia type 1. Many ENG gene mutations substitute one protein building block (amino acid) for another amino acid in the endoglin protein, which impairs the protein's function. Other mutations prevent production of the endoglin protein or result in an abnormally small protein that cannot function. The shortage of functional endoglin appears to interfere with the development of boundaries between arteries and veins, resulting in the signs and symptoms of hereditary hemorrhagic telangiectasia type 1.

Genetics Home Reference provides information about pulmonary arterial hypertension, which is also associated with changes in the ENG gene.

Where is the ENG gene located?

Cytogenetic Location: 9q34.11

Molecular Location on chromosome 9: base pairs 127,815,012 to 127,854,773

(Homo sapiens Annotation Release 107, GRCh38.p2) (NCBIThis link leads to a site outside Genetics Home Reference.)

The ENG gene is located on the long (q) arm of chromosome 9 at position 34.11.

The ENG gene is located on the long (q) arm of chromosome 9 at position 34.11.

More precisely, the ENG gene is located from base pair 127,815,012 to base pair 127,854,773 on chromosome 9.

See How do geneticists indicate the location of a gene? in the Handbook.

Where can I find additional information about ENG?

You and your healthcare professional may find the following resources about ENG 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 ENG gene or gene products?

  • CD105
  • END
  • endoglin (Osler-Rendu-Weber syndrome 1)
  • endoglin precursor
  • HHT1
  • ORW
  • ORW1
  • Transforming Growth Factor P Receptor III

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 ENG?

amino acid ; arteries ; gene ; growth factor ; hereditary ; hypertension ; precursor ; protein ; pulmonary ; receptor ; syndrome ; telangiectasia ; veins

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.

Reviewed: February 2007
Published: February 8, 2016