94) We identified a novel homozygous p.M329V in SUCLA2. |
PMID:24659738 DOI:10.1177/0883073814527158 |
2015 Journal of child neurology |
* A novel SUCLA2 mutation in a Portuguese child associated with "mild" methylmalonic aciduria. |
- Succinyl-coenzyme A synthase is a mitochondrial matrix enzyme that catalyzes the reversible synthesis of succinate and adenosine triphosphate (ATP) from succinyl-coenzyme A and adenosine diphosphate (ADP) in the tricarboxylic acid cycle. This enzyme is made up of α and β subunits encoded by SUCLG1 and SUCLA2, respectively. We present a child with severe muscular hypotonia, dystonia, failure to thrive, sensorineural deafness, and dysmorphism. Metabolic investigations disclosed hyperlactacidemia, moderate urinary excretion of methylmalonic acid, and elevated levels of C4-dicarboxylic carnitine in blood. We identified a novel homozygous p.M329V in SUCLA2. In cultured cells, the p.M329V resulted in a reduced amount of the SUCLA2 protein, impaired production of mitochondrial ATP, and enhanced production of reactive oxygen species, which was partially reduced by using 5-aminoimidazole-4-carboxamide ribonucleotide in the culture medium. Expanding the array of SUCLA2 mutations, we suggested that reactive oxygen species scavengers are likely to impact on disease prognosis. |
(1)22 therapeutic | (17)3 mutation | (33)2 approaches | (49)2 information |
(2)11 and | (18)3 paradigm | (34)2 autosomal | (50)2 inhibitors |
(3)8 mechanism | (19)3 role | (35)2 candidate | (51)2 learning |
(4)8 method | (20)3 strain | (36)2 cardiac | (52)2 modulators |
(5)7 approach | (21)3 target | (37)2 clinical | (53)2 object |
(6)7 mutations | (22)3 targeted | (38)2 compounds | (54)2 oral |
(7)6 therapies | (23)3 targets | (39)2 data | (55)2 polymer |
(8)5 technique | (24)3 treatment | (40)2 described | (56)2 potent |
(9)4 strategies | (25)3 type | (41)2 dual | (57)2 prognostic |
(10)4 strategy | (26)3 words | (42)2 electroporation | (58)2 putative |
(11)4 surgical | (27)2 *null* | (43)2 finding | (59)2 recombinants |
(12)3 antibacterial | (28)2 anti-tumor | (44)2 findings | (60)2 results |
(13)3 drug | (29)2 antibiotic | (45)2 form | (61)2 therapeutical |
(14)3 homozygous | (30)2 anticancer | (46)2 genetic | (62)2 titanium |
(15)3 insights | (31)2 application | (47)2 imaging | (63)2 treatments |
(16)3 mechanisms | (32)2 applications | (48)2 in |
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