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DAZL

Synonyms
DAZH, DAZL1, DAZLA, SPGYLA
External resources
Summary
The DAZ (Deleted in AZoospermia) gene family encodes potential RNA binding proteins that are expressed in prenatal and postnatal germ cells of males and females. The protein encoded by this gene is localized to the nucleus and cytoplasm of fetal germ cells and to the cytoplasm of developing oocytes. In the testis, this protein is localized to the nucleus of spermatogonia but relocates to the cytoplasm during meiosis where it persists in spermatids and spermatozoa. Transposition and amplification of this autosomal gene during primate evolution gave rise to the DAZ gene cluster on the Y chromosome. Mutations in this gene have been linked to severe spermatogenic failure and infertility in males. Two transcript variants encoding different isoforms have been found for this gene.

Variant counts

The variants found in rare patients tested by 3billion are classified and counted according to ACMG guidelines. The variants with over 5% variant frequency in population genome databases ( gnomAD, dbSNP, etc) are excluded.

Pathogenic
3
Likely pathogenic
0
VUS
2,949
Likely benign
2,553
Benign
0

Patient phenotypes

Proportions of phenotypes among 3 patients carrying pathogenic or likely pathogenic variants on DAZL gene are displayed below.

Phenotype class
Patients in 3billion (%)
Abnormality of the eye
66.7%
Abnormality of the musculoskeletal system
66.7%
Abnormality of the nervous system
66.7%
Abnormality of head or neck
33.3%
Abnormality of the cardiovascular system
33.3%
Abnormality of the genitourinary system
33.3%
Constitutional symptom
33.3%
Abnormal cellular phenotype
0%
Abnormality of blood and blood-forming tissues
0%
Abnormality of limbs
0%
Abnormality of metabolism homeostasis
0%
Abnormality of prenatal development or birth
0%
Abnormality of the breast
0%
Abnormality of the digestive system
0%
Abnormality of the ear
0%
Abnormality of the endocrine system
0%
Abnormality of the immune system
0%
Abnormality of the integument
0%
Abnormality of the respiratory system
0%
Abnormality of the thoracic cavity
0%
Abnormality of the voice
0%
Growth abnormality
0%
Neoplasm
0%

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