biotinidase


Also found in: Acronyms, Encyclopedia, Wikipedia.

bi·o·tin·i·dase

(bī'ō-tin'i-dās),
An enzyme catalyzing the hydrolysis of biotin amide (forming biotin and ammonia), biocytin (forming biotin and lysine), and other biotinides. A deficiency of biotinidase can lead to organic acidemia.

biotinidase

An enzyme encoded by BTD on chromosome 3p25, which recycles biotin by cleaving biocytin (biotin-lysine), a normal product of carboxylase degradation.
References in periodicals archive ?
Disorders included in provincial screening programs (41) congenital Duchenne biotinidase adrenal muscular hypothy deficiency hyperplasma dystrophy roidism galactosemia PKU AB X X X BC (42) X X X MB X X X (43) X X X NB (44) X X NF X X NS (45) X X ON (46) X X ON (46) X X PEI X X SK X X MACD tyrosinemia Deficiency AB BC (42) MB NB (44) NF X NS (45) X ON (46) ON (46) PEI SK
A screening method for biotinidase deficiency in newborns.
Can you possibly conceive of a parent taking their baby home from the hospital ready to tackle the challenges of parenthood not knowing that he or she had biotinidase deficiency; then finding out four or six months later that their son or daughter was destined for a life with severe intellectual disabilities?
This mass shift corresponded to the loss of the biotin-tag cleaved off enzymatically by biotinidase (EC 3.
The other tests that make up the March of Dimes recommended core list are: phenylketonuria (PKU); congenital hypothyroidism; congenital adrenal hyperplaisa (CAH); galactosemia, biotinidase deficiency; maple syrup urine disease; sickle cell anemia; and hearing screening.
Direct analysis of enzyme activity is used in testing for galactosemia (galactose-1-phosphate uridyltransferase deficiency) and biotinidase deficiency.
The March of Dimes Pennsylvania Chapter is poised to introduce legislation that will add Homocystinuria, Biotinidase Deficiency, and Medium-Chain ACYL-COA Dehydrogenase Deficiency (MCAD) to the newborn screening tests already offered in the state to bring Pennsylvania to the nine core metabolic tests recommended by the March of Dimes.
The most common inborn errors of metabolism being screened by states and territories include PKU, hypothyroidism, galactosemia, bio biotinidase deficiency, congenital hypothyroidism, and maple syrup urine disease.
Defects in processing of the cofactor for PCC, biotin, could in theory lead to C3-carnitine elevation, but isolated elevations of C3carnitine in patients with biotinidase deficiency or holocarboxylase synthetase deficiency have not been reported.
com 2,3,4,8,9 BENIGN CONGENITAL HYPOTONIA See: Spinal Muscular Atrophy BERGER DISEASE See: Kidney Disorders BETA THALASSEMIA MAJOR See: Cooley Anemia BEUREN SYNDROME See: Williams Syndrome BIOTINIDASE DEFICIENCY See: Metabolic Disorders BIRTHMARK See: Nevi, Giant Congenital BLEEDING DISORDERS See: Hemophilia BLEPHAROPHIMOSIS, PTOSIS, EPICANTHUS INVERSUS SYNDROME (BPES) See also: Craniofacial Disorders Blepharophimosis, Ptosis, Epicanthus Inversus Family Network c/o Lynne Schauble SE 820 Meadow Vale Dr.
In most Caucasian populations, the incidence is lower, ~1 in 100 000 births, which equals the frequency of biotinidase deficiency.
Neonatal screening with the SPOTCHECK automated chemistry analyzer includes tests for phenylalanine, total galactose, uridyltransferase, tyrosine, biotinidase deficiency and G6PD deficiency.