Identification of the mutations in the T-protein gene causing typical and atypical nonketotic hyperglycinemia
Identification of the mutations in the T-protein gene causing typical and atypical nonketotic hyperglycinemia
复制标题
鉴定导致典型和非典型非酮症高甘氨酸血症的 T 蛋白基因突变
DOI:
10.1007/bf00201565
复制
发表时间:
1994
期刊:
影响因子:
5.3
通讯作者:
K. Hayasaka
中科院分区:
文献类型:
--
作者:
K. Nanao;K. Okamura;Y. Motokawa;D. Danks;E. Baumgartner;G. Takada;K. Hayasaka
We have investigated the molecular lesions of T-protein deficiency causing typical or atypical nonketotic hyperglycinemia (NKH) in two unrelated pedigrees. A patient with typical NKH was identified as being homozygous for a missense mutation in the T-protein gene, a G-to-A transition leading to a Gly-to-Asp substitution at amino acid 269 (G269D). Sibling patients of a second family with atypical NKH had two different missense mutations in the T-protein gene (compound heterozygote), a G-to-A transition leading to a Gly-to-Arg substitution at amino acid 47 (G47R) in one allele, and a G-to-A transition leading to an Arg-to-His substitution at amino acid 320 (R320H) in the other allele. Gly 269 is conserved in T-proteins of various species, even inE. coli, whereas Gly 47 and Arg 320 are replaced by Ala and Leu, respectively, inE. coli. The mutation occurring in more conservative amino acid residues thus results in more deleterious damage to the T-protein, and gives the severe clinical phenotype, viz., typical NKH.
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
影响因子:
4.3
作者:
KIKUCHI, G
通讯作者:
KIKUCHI, G