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LHB

Synonyms
CGB4, HH23, LSH-B, LSH-beta
External resources
Summary
This gene is a member of the glycoprotein hormone beta chain family and encodes the beta subunit of luteinizing hormone (LH). Glycoprotein hormones are heterodimers consisting of a common alpha subunit and an unique beta subunit which confers biological specificity. LH is expressed in the pituitary gland and promotes spermatogenesis and ovulation by stimulating the testes and ovaries to synthesize steroids. The genes for the beta chains of chorionic gonadotropin and for luteinizing hormone are contiguous on chromosome 19q13.3. Mutations in this gene are associated with hypogonadism which is characterized by infertility and pseudohermaphroditism.

Variant counts

Variant classification counts according to ACMG guideline on all identified variants among our tested samples are listed. The variants with over 5% variant frequency in population genome databases ( gnomAD, dbSNP, etc) are excluded.

Pathogenic
4
Likely pathogenic
0
VUS
702
Likely benign
423
Benign
55

Patient phenotypes

Proportions of phenotypes among 4 patients carring pathogenic or likely pathogenic variants on LHB gene are displayed below.

Phenotype class
Patients in 3billion (%)
Abnormality of head or neck
50%
Abnormality of the musculoskeletal system
50%
Abnormality of the nervous system
50%
Abnormality of the cardiovascular system
25%
Abnormality of the ear
25%
Abnormality of the eye
25%
Abnormality of the integument
25%
Growth abnormality
25%
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 endocrine system
0%
Abnormality of the genitourinary system
0%
Abnormality of the immune system
0%
Abnormality of the respiratory system
0%
Abnormality of the thoracic cavity
0%
Abnormality of the voice
0%
Constitutional symptom
0%
Neoplasm
0%

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