GM25382

GM25382 LCL from B-Lymphocyte

Description:

CHOROIDEREMIA; CHM
CHM GENE; CHM

Affected:

Yes

Sex:

Male

Age:

20 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

Ethnicity

Not Hispanic/Latino

Ethnicity

European

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; adopted at birth; diagnosed at 13 years of age; onset of symptoms at 10 years of age; pigment mottling characteristic of choroideremia; decreased field of vision; abnormal ERG exam; at 12 years of age, an eye exam revealed the following: MO -13.64 DB (p<0.5), PSO 9.93 DB (p<0.5) for the left eye and MO -15.63 DB (p<0.5), PSO 10.90 DB (p<0.5) for the right eye; at 14 years, the visual acuity was OD #letters 79, Snellen 20/32 and OS #letters 84, Snellen 20/20 while the manifest retraction was OD -1.00 Sph=#Let 89=20/16, OS -1.00+0.25X100=#Let 91=20/16 and the retina for both eyes had RPE hypo/hyper pigmentation, RPE mottling, left eye average RPE thickness was 292 um and that for the right eye was 291 um; PCR sequence analysis revealed a causative hemizygous mutation in exon 6 of the CHM gene (Xq21.2): c.808C>T (p.Arg270TER); sequencing also revealed hemizygous polymorphisms in intron 2 of the CHM gene: c.116+215insCCTTT (rs3078127) and c.116+80CC>T (rs1015148); supplements taken: omega 3, fish oil and lutein; same subject as GM25383 (fibroblast) and GM26663 (stem cell).