GM25392

GM25392 LCL from B-Lymphocyte

Description:

CHOROIDEREMIA; CHM
CHM GENE; CHM

Affected:

Yes

Sex:

Male

Age:

57 YR (At Sampling)

Overview

Repository

NIGMS Human Genetic Cell Repository

Subcollection

Heritable Diseases
PIGI Consented Sample

Biopsy Source

Peripheral vein

Cell Type

B-Lymphocyte

Tissue Type

Blood

Transformant

Epstein-Barr Virus

Sample Source

LCL from B-Lymphocyte

Race

White

Country of Origin

USA

Family Member

Family History

Relation to Proband

proband

Confirmation

Molecular characterization before cell line submission to CCR

Species

Homo sapiens

Common Name

Human

Remarks

Clinically affected; end stage choroideremia; deteriorated vision in both eyes; severe night blindness; sensitivity to light; decreased visual fields; some loss of color vision; blunt fundus in both eyes; diffuse retinal atrophy; mottled pigmentation; nuclear sclerotic cataract (NSC) 1+ in both eyes; at 56 years of age, eye exam readings for left eye were: MD -31.96 DB (p<0.5%), PSD 2.37 DB (p<2%) and for right eye: MD -32.28 DB (p<0.5%), PSD 1.49 DB; at 57 years of age, foveal thickness measured OD 357, OS 373 and sub-retinal fluid temporal to fovea OS is stable compared to a year earlier, for left eye: MD -32.45 DB (p<0.5%), PSD 1.56 DB and no information on right eye; VC: 20/50-2 PH 20/NI, 20/200+1 PH 20/NI; MR: OD -3.25+1.50x165 20/NI; OS -375+1.25x85 20/NI; W: -3.75+1.25x125, -3.75+1.25x85; DNA sequencing revealed a novel hemizygous G>T nucleotide substitution at position +1 of intron 3 in the CHM gene which may cause aberrant splicing of the mRNA and is a probable highly penetrant disease-causing sequence variant: c.189+1 G>T (formerly reported as IVS3+1 G>T), and a non-disease-causing variant Ala117Ala GCA>GCG; assistive devices: glasses, cane; fibroblast is GM25393; stem cell line is GM26650.