Description:
CEROID LIPOFUSCINOSIS, NEURONAL 2, LATE INFANTILE TYPE; CLN2
CLN2 GENE; CLN2
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Repository
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NIGMS Human Genetic Cell Repository
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| Subcollection |
Heritable Diseases
Lysosomal Storage Diseases
Pharmacogenetics |
| Class |
Disorders of the Nervous System |
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Cell Type
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Fibroblast
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Transformant
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Untransformed
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Race
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Asian
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Relation to Proband
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proband
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Confirmation
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Clinical summary/Case history
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Species
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Homo sapiens
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Common Name
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Human
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Remarks
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| Passage Frozen |
14 |
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| IDENTIFICATION OF SPECIES OF ORIGIN |
Species of Origin Confirmed by Nucleoside Phosphorylase, Glucose-6-Phosphate Dehydrogenase, and Lactate Dehydrogenase Isoenzyme Electrophoresis |
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| Gene |
CLN2 |
| Chromosomal Location |
11p15.5 |
| Allelic Variant 1 |
I287N; CEROID LIPOFUSCINOSIS, NEURONAL 2 |
| Identified Mutation |
ILE287ASN |
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| Gene |
CYP2D6 |
| Chromosomal Location |
22q13.1 |
| Allelic Variant 1 |
124030.0005; DEBRISOQUINE, POOR METABOLISM OF |
| Identified Mutation |
PRO34SER; This allelic variant is also known as CYP2D6*10 or CYP2D6(J) or CYP2D6(Ch1, Ch2). Kagimoto et al. (J Biol Chem 265:17209-17214, 1990) identified a 188C-T transition in exon 1 of the CYP2D6 gene, resulting in a pro34-to-ser (P34S) substitution as a cause of the debrisoquine poor metabolizer phenotype (608902). |
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| Gene |
CYP2D6 |
| Chromosomal Location |
22q13.1 |
| Allelic Variant 2 |
124030.0005; DEBRISOQUINE, POOR METABOLISM OF |
| Identified Mutation |
PRO34SER; This allelic variant is also known as CYP2D6*10 or CYP2D6(J) or CYP2D6(Ch1, Ch2). Kagimoto et al. (J Biol Chem 265:17209-17214, 1990) identified a 188C-T transition in exon 1 of the CYP2D6 gene, resulting in a pro34-to-ser (P34S) substitution as a cause of the debrisoquine poor metabolizer phenotype (608902). |
| Remarks |
Seizures, myoclonus, dementia, and spasticity; a brother died at age 11 with the same disease; diagnosis is most consistent with late infantile amaurotic idiocy; slightly elevated urinary dolichol; CLN2 protease deficient; the donor subject has one allele which carries a T-to-A transition at nucleotide g.4023 (c.860T>A) which converts the ile-287 codon (ATC) to asn (AAC), resulting in a missense mutation in exon 7 of the CLN2 (TPP1) gene [Ile287Asn (I287N)]. |
| Vidal-Donet JM, Cárcel-Trullols J, Casanova B, Aguado C, Knecht E, Alterations in ROS Activity and Lysosomal pH Account for Distinct Patterns of Macroautophagy in LINCL and JNCL Fibroblasts PloS one8:e55526 2012 |
| PubMed ID: 23408996 |
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| Jennings JJ, Zhu JH, Rbaibi Y, Luo X, Chu CT, Kiselyov K, Mitochondrial aberrations in mucolipidosis Type IV The Journal of biological chemistry281:39041-50 2006 |
| PubMed ID: 17056595 |
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| Soyombo AA, Tjon-Kon-Sang S, Rbaibi Y, Bashllari E, Bisceglia J, Muallem S, Kiselyov K, TRP-ML1 regulates lysosomal pH and acidic lysosomal lipid hydrolytic activity The Journal of biological chemistry281:7294-301 2005 |
| PubMed ID: 16361256 |
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| Sleat DE, Gin RM, Sohar I, Wisniewski K, Sklower-Brooks S, Pullarkat RK,
Palmer DN, Lerner TJ, Boustany RM, Uldall P, Siakotos AN, Donnelly RJ, Lobel P, Mutational analysis of the defective protease in classic late-infantile neuronal
ceroid lipofuscinosis, a neurodegenerative lysosomal storage disorder. Am J Hum Genet64(6):1511-23 1999 |
| PubMed ID: 10330339 |
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| Sohar I, Sleat DE, Jadot M, Lobel P, Biochemical characterization of a lysosomal protease deficient in classical late infantile neuronal ceroid lipofuscinosis (LINCL) and development of an enzyme-based assay for diagnosis and exclusion of LINCL in human specimens and animal models. J Neurochem73:700-11 1999 |
| PubMed ID: 10428067 |
| Passage Frozen |
14 |
| Split Ratio |
1:2 |
| Temperature |
37 C |
| Percent CO2 |
5% |
| Medium |
Eagle's Minimum Essential Medium with Earle's salts and non-essential amino acids with 2mM L-glutamine or equivalent |
| Serum |
10% fetal bovine serum Not inactivated |
| Substrate |
None specified |
| Subcultivation Method |
trypsin-EDTA |
| Supplement |
- |
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