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GCHFR

Synonyms
GFRP, HsT16933, P35
External resources
Summary
GTP cyclohydrolase I feedback regulatory protein binds to and mediates tetrahydrobiopterin inhibition of GTP cyclohydrolase I. The regulatory protein, GCHFR, consists of a homodimer. It is postulated that GCHFR may play a role in regulating phenylalanine metabolism in the liver and in the production of biogenic amine neurotransmitters and nitric oxide.

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
534
Likely benign
0
Benign
0

Patient phenotypes

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

Phenotype class
Patients in 3billion (%)
Abnormality of the musculoskeletal system
100%
Abnormality of the nervous system
100%
Abnormality of head or neck
75%
Growth abnormality
50%
Abnormality of the genitourinary system
25%
Abnormality of the integument
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 cardiovascular system
0%
Abnormality of the digestive system
0%
Abnormality of the ear
0%
Abnormality of the endocrine system
0%
Abnormality of the eye
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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