PMID: 34008801

Gene: ABCA4

HGNC ID: 34

PMID: 17562343 GeneName: ABCA4

Case#: Patient 13, 35yo

DiseaseAssertion: STGD

FamilyInfo: Family 8

CasePresentingHPOs:

CaseHPOFreeText: Visual acuity=0.017. OCT ft (μm)=163. MP (dB)=0. Fundus=3(extensive atrophic-appearing RPE changes). ERG=3(abnormal responses involving both rods and cones). mfERG=4(subnormal mfERG in the entire test field (0°–30°) plus pathologic Ganzfeld ERG).

CaseNotHPOs:

CaseNotHPOFreeText:

GenotypingMethod: PCR of coding regions, intron/exon boundaries, and 5′ and 3′ regions of ABCA4; Standard cycle-sequencing reactions with BigDye Terminator

PreviouslyPublished:

Variant: L541P; R1098C

CAID: CA226911;

SupplementalData: n/a

Case#: Case2, Sex:Female, Age:15

DiseaseAssertion: STGD

FamilyInfo: n/a

CasePresentingHPOs: n/a

CaseHPOFreeText: Clinical Notes: Few yellowish Flecks without autofluorescence. General notes: participant presented with atypical macular degeneration.

CaseNotHPOs:n/a

CaseNotHPOFreeText: n/a

Genotyping Method: Exome sequencing data generation. Additional sequencing targeted amplification fo PRPH2 and ELOVL4 using PCR.

PreviouslyPublished: n/a

Variant: Variant 1 given as p.G1961E; NM_000350.3:c.5882G>A p.(Gly1961Glu) . Variant 2 given as p.Q636X; NM_000350.3(ABCA4):c.1906C>T (p.Gln636Ter).

ClinVar: Variation ID: 7888 ; Variation ID: 265012

CAID: ; CA10588302

SupplementalData: Proband variant information given in Table 1.

PMID: 22863181

Gene: ABCA4

HGNC ID: 34

Case#: Patient #33, female, 64yo at baseline visit, "late" age of onset

DiseaseAssertion: ABCA4-related retinopathy with secondary RPE atrophy

FamilyInfo:

CasePresentingHPOs:

CaseHPOFreeText: Inclusion criteria were defined as 1) presence of at least one mutated allele in ABCA4 (NM_000350.2) in Sanger sequencing with multiplex ligation-dependent probe amplification analysis or next-generation sequencing,9 2) a compatible phenotype with flecks at the level of the RPE consistent with ABCA4 -related Stargardt disease,9 3) presence of RPE atrophy, and 4) serial examinations with an interval of at least 6 months. RPE atrophy to the end-stage (i.e., demarcated lesions with ≥90% darkness of the optic disc under short-wavelength excitation light, DDAF) that previously showed highest interreader agreement.7 The size of DDAF has to be at least 0.05 mm 2 (each single atrophic area in cases of multifocality), and the entire lesion must be completely visualized on the AF image at each visit to be advanced for analysis. Self-reported symptom onset into early-onset (≤10 years), intermediate-onset (11–44 years), and late-onset (≥45 years). ff-ERG based Category: Group 1 contained eyes with normal scotopic and photopic responses; Group 2, eyes with normal scotopic responses, but reduced (over 2 SDs) photopic B-wave and 30-Hz flicker amplitudes; and Group 3, eyes with impairment of both rod- and cone-driven responses. BCVA: OD=0.4, OS=1.1 [LogMAR] .

CaseNotHPOs:

CaseNotHPOFreeText: Insufficient pupil dilation, additional retinal pathology, previous retinal treatment, or other ocular comorbidities substantially affecting image quality led to exclusion from the study

GenotypingMethod: Sanger sequencing with multiplex ligation-dependent probe amplification analysis or next-generation sequencing

PreviouslyPublished: possible since Birtel is an author on this paper and the probands both have the same second variant as in PMID: 29555955

Variant: allele 1: c.3468C>G p.(Tyr1156*) allele 2: c.5059A>T p.(Ile1687Phe); c.4297G>A p.(Val1433Ile)

ClinVar: n/a

CAID: CA341290648

SupplementalData: The supplemental table linked here contains genotype and phenotype information.

When expressed in transfected HEK293T cells and quantified by Western blotting, this variant was in the range of 40%-52%. This variant has a basal ATPase activity of 63% ± 5% compared to WT (100%) and was categorized as class 2 (partial reduction in expression and basal ATPase activity that was modestly stimulated by N-Ret-PE) with a moderate/severe predicted severity.

PMID: 41063816

Gene: ABCA4

HGNC ID: 34

Case#: Case 3, 39yo

DiseaseAssertion: BEM, RCD

FamilyInfo: n/a

CasePresentingHPOs:

CaseHPOFreeText: a ring of increased AF surrounding decreased foveal AF, visual acuity= 6/6, 6/6

CaseNotHPOs:

CaseNotHPOFreeText: acquired toxic aetiology

GenotypingMethod: The entire coding sequence (50 exons), including exon–intron boundaries, of the ABCA4 gene of each patient was screened using single‐stranded conformational polymorphism (SSCP) analysis and direct sequencing.

PreviouslyPublished: n/a

Variant: Val552Ile heterozygous

CAID: CA239745

SupplementalData: n/a

Case#: Patient #42, female, 31yo at onset, German

DiseaseAssertion: macular dystrophy or cone-rod dystrophy

FamilyInfo: phase not confirmed, but assumed in case of parental consanguinity or if only siblings were affected

CasePresentingHPOs: HP:0012508

CaseHPOFreeText:

CaseNotHPOs:

CaseNotHPOFreeText: syndromic retinal disease, age-related macular degeneration, central serous retinopathy, autoimmune retinopathy, retinal vascular disease, achromatopsia, X-linked retinoschisis, North Carolina macular dystrophy

PreviouslyPublished: n/a

Variant: c.3468C>G (p.Tyr1156Ter); c.5059A>T (p.Ile1687Phe) Sanger sequencing of ABCA4

ClinVar: n/a

CAID: CA341290648

SupplementalData: Supplementary table 1

PMID: 35973334

Gene: ABCA4

HGNC ID: 34

Case#: Family 1 proband, male, 6yo at onset, Chinese

DiseaseAssertion: CORD

FamilyInfo: heterozygous unaffected parents

CasePresentingHPOs: HP:0000613, HP:0000505, HP:0007401, HP:0012511, HP:0008043, HP:0000512

CaseHPOFreeText:  ERG responses from cones reduced, BVA=0.20/0.15

CaseNotHPOs:

CaseNotHPOFreeText:

PreviouslyPublished: n/a

Variant: c.[1957C>T];[4604dup] phase confirmed

ClinVar: n/a

CAID: CA645372205

SupplementalData:

Case#: two siblings (female) were from one consanguineous family (case 1, 11 years and case 2, 9 years)

DiseaseAssertion: Stargardt’s Disease

FamilyInfo: NR

ParentalTesting: NR

CasePresentingHPOs: HP:0030500, HP:0011507

CasePhenotypeFreeText: LogMAR visual acuity for the right and left eye of cases 1–4 was 0.3 and 0.2, 0.1 and 0.1, 0.5 and 0.4, and 0.3 and 0.4, respectively. Gross disruption of the outer retinal layers at the macula in all cases; in two (cases 2 and 4), the presumed external limiting membrane (ELM) peak was broadened with the inner segment ellipsoid band (ISe) missing. Subtle white-yellowish fine dots at the macula and numerous white-yellowish flecks extending anterior to the arcade are shown in the colour fundus photograph of case 1. Autofluorescence (AF) imaging of case 1 detected well-defined dots with high signal at the central macula surrounded by a ring of increased signal and numerous foci with high or low signal extending to the peripheral retina. Case 2 also had subtle white-yellowish fine dots at the central macula and numerous white-yellowish flecks extending anterior to the arcade, both associated with high signal on AF imaging. In addition, case 3 had white-yellowish fine dots at the macula and numerous white-yellowish flecks extending to the periphery, both of which had high or low signal on AF imaging. Case 4 showed subtle fine macular dots mainly in a para-foveal location, which are well-defined on AF imaging.

CaseNotHPOs: HP:0007401, HP:0000505

CaseNotPhenotypeFreeText: Most cases with STGD have central macular atrophy with numerous more peripheral flecks (Michaelides et al. 2003). Given their relatively good visual acuity, it is likely that the central macular dots observed in our cases may be an early sign of macular dysfunction before the development of macular atrophy. Similar fine macular dots or a ‘mottled macula’ have also been reported in other inherited retinal diseases

CasePreviousTesting: The age of disease onset in cases 1–4, defined as either the age at which visual loss was first noted by the subject or in the asymptomatic subjects when abnormal retinal appearance was first detected, was 5, 7, 8, and 6 years old, respectively.

GenotypingMethod: After informed consent was obtained, blood samples were taken from probands of 2/3 families for ABCA4 screening. A full medical history was obtained, and a full ophthalmologic examination was performed in all cases. Mutation screening of ABCA4 was performed in two probands of the three families, and two likely disease-causing variants were identified in each case; c.768G > T, p.V256V (a previously reported splicing-altering synonymous variant) and c.4363T > C, p.C1455R (a missense variant) in case 1, and c.1906C > T, p.Q636* (a non-sense variant) and c.5461-10 T > C (a disease-associated intronic variant with uncertain effect) in case 3. A blood sample was not available in one proband (case 4).

Variant: NM_000350.3(ABCA4):c.768G>T (p.Val256=) and NM_000350.3(ABCA4):c.4363T>C (p.Cys1455Arg)

LegacyVariant: c.768G>T (p.Val256=) and c.4363T>C (p.Cys1455Arg)

ClinVar: 99505 and 377404

CAID: CA227458 and CA957621

gnomeAD: 1:94564350 C / A and 1:94495177 A / G

MultipleGeneVariants:No

PreviouslyPublished: No

AdditionalInfo: Some symptoms/diagnoses are consistent with Stargardt’s Disease 3, however the probands in the study were younger in age, so many of the symptoms hadn’t progressed much. Also, all of the cases had decent visual acuity, which contradicts a symptom of Stargardt’s Disease 3.

ATPase activity in HEK293 cells showed severely reduced basal ATPase activity, ∼30% of WT ABCA4, indicating that this variant impacts protein function (PS3_Supporting; PMIDs).

Autofluorescence and A2E production was measured in transgenic mice and showed loss of function of ABCA4 protein indicating that this variant impacts protein function (PS3; PMIDs).

Case#: Patient 24, male, Caucasian, onset at 50yo, Germany

DiseaseAssertion: STGD

FamilyInfo: co-segregation of variant in 2 family members (siblings) but they do not appear to be affected based on pedigree

CasePresentingHPOs: HP:0030528, HP:0000505, HP:0012508, HP:0001105, HP:0025148

CaseHPOFreeText: progressive paracentral scotoma OU, progressive visual impairment OU (blurry vision). BCVA: OD-0.1, OS-0.22. Tension: 13mmHg/14mmHg. FAF: bilateral hyperautofluorescent macular and peripapillary spots, few spots of paracentral retinal atrophy (foveal sparing). Autofluorescence and deposits (severity): deposits medium, atrophy low. OCT: hyperreflective spots, partially invading into the outer retina, partly confluent lesions of cRORA, foveal sparing, degenerative intraretinal fluid. Central macular thickness: 328µm/322µm. Macular volume: 9.31mm³/9.00mm³. mfERG: bilateral amplitudes in normal range, slight relative reduction in the paracentral areas. Fluorescein angiography: bilateral dark choroid, mild paracentral dye pooling in the late phase. Color vision: Inconspicuous. Clinical examination: pattern-like distribution of the lesions.

CaseNotHPOs: n/a

CaseNotHPOFreeText: n/a

GenotypingMethod: WES, in-house RD-associated gene panel including 619 candidates and disease-associated genes

PreviouslyPublished: n/a

Variant: ABCA4 NM_000350.2 c.[6601_6602delAG] (p.Arg2201fs);[=], c.[4253+43G>A] p.Ile1377Hisfs3;[=]

CAID: CA227421; CA227172

SupplementalData: phenotype and segregation info in supplemental data (table s1, figure s1)

This variant was mentioned in reference to a previous publication. PMID: 23419329

PMID: 30204727

Gene: ABCA4

HGNC ID: 34

Case#: Female, family #5, Patient #20

DiseaseAssertion: STGD

FamilyInfo: Proband's sister presented with same clinical prognosis. Sister diagnosed with pattern dystrophy and photoaversion at age 57, with difficulty seeing at night. Sister has nuclear sclerotic and cortical cataracts in both eyes.

CasePresentingHPOs: HP:0000662, HP:0000603, HP:0000603, HP:0000493

CaseHPOFreeText: Proband presented with localized blur at age 62, (late onset) in her left eye. BVCA 20/20-3 and 20/20-2 at age 70. Also has macular lesions with stage 2 fundus flecks.

CaseNotHPOs: n/a

CaseNotHPOFreeText: n/a

Genotyping Method: Genotyping performed at Columbia University, sequencing technology used is not disclosed.

PreviouslyPublished: n/a

Variant: p.N18681, IVS36:c.5196+1G>A

ClinVar: M2) 99067, M6) 99351

CAID: N/A

SupplementalData: Fig 1: Pedigree illustrating ABCA4 variants and the associated Stargardt phenotype for 5 families. Proband Labeled w/ white arrow for each family. Fig 2: retinal scan measuring melanin in 4 patients of family 2. Panel shows bull's-eye ring of RPE atropy. Fig 3: Macular SD-OCT line profile from b-scans. Reflectivity plotted against function of retinal depth. Table 1: table shows patients with p.N18681 variant, type of mutation, and pathogenicity class. Table 2: Patients, age on-set and first symptom

This variant is listed for Stargardt DNAID#067322 in trans with c.5603A>T p.(Asn1868Ile). No phenotype information provided.

Case#: DNAID 072284/Pat191, female

DiseaseAssertion: STGD1

FamilyInfo: n/a

CasePresentingHPOs:

CaseHPOFreeText: "In classic STGD1, loss of central vision starts around the second decade of life, but both early- and late-onset subtypes have been extensively described." No patient-specific details provided

CaseNotHPOs:

CaseNotHPOFreeText:

GenotypingMethod: smMIPs sequencing of the complete ABCA4 locus

PreviouslyPublished: n/a

Variant: c.1519G>T (p.Asp507Tyr); c.4139C>T (p.Pro1380Leu) phase not confirmed

CAID: CA958508

SupplementalData: tables s9 and s11

ATPase function of G863A mutant protein was reduced ∼3-fold as compared with NBD1wt, indicating ∼70% of inhibition of the ATPase activity (Fig. 3). TheVmax (ATPase) for G863A mutant was 128 pmol/min/mg and that of the wild-type NBD1 was 584 pmol/min/mg (Table II).

PMID: 37628710

Gene: ABCA4

HGNC ID: 34

Case#: 1 female, 12 years old.

DiseaseAssertion: bilateral stage 2B Coats disease. ABCA4 gene mutations were found upon genetic analysis but Stargardt disease was not diagnosed.

FamilyInfo: Single affected individual. Past medical history and family history was reported as normal. No additional information about family is provided in text.

CasePresentingHPOs: HP:0007663 - Reduced visual acuity, HP:0001147 - Retinal exudate, HP:0007763 - Retinal telangiectasia, HP:0025355 - Retinal arteriolar macroaneurysms, HP:0011505- Cystoid macular edema, HP:0020032 - Hyperreflective retinal dots on OCT, HP:0001045 - Vitiligo

CaseHPOFreeText: bilateral significant capillary nonperfusion noted mostly in the temporal retinal periphery together with light-bulb-like capillary dilations and staining of telangiectatic vessels. Mild intravitreal hemorrhage

CaseNotHPOs: HP:0012045 - Retinal flecks, HP:0025010 - Foveal atrophy, HP:0000603 - Central scotoma, HP:0000556 - Retinal dystrophy, HP:0000512 - Abnormal electroretinogram

CaseNotHPOFreeText: Relatively normal foveal architecture.

Genotyping Method: Genetic analysis was performed using Sanger sequencing for the NDP gene, which revealed no pathogenic variants. Exome sequencing was then used with the Illumina HiSeq 2500 platform, which identified two compound heterozygous variants in the ABCA4 gene. Lastly, no mutations were found in the TINF2 gene.

PreviouslyPublished: N/A

Variant: NM_000350.3(ABCA4):c.1373C>T (p.Arg458Cys), NM_000350.3(ABCA4):c.5882G>A (p.Gly1961Glu)

ClinVar: Variation ID: 7888 ( for p.Arg458Cys variant however I believe this is mislabeled for this variant NM_000350.3(ABCA4):c.5882G>A (p.Gly1961Glu), no variantion ID found for NM_000350.3(ABCA4):c.1373C>T (p.Arg458Cys)

CAID: N/A

SupplementalData: N/A

Analysis of ABCA4 variants in 150 families with Stargardt disease. Most of which were of northern or central European ancestry. For comparison, 220 racially matched individuals with no personal history or known family history of STGD served as controls (Anderson et al. 1995; Allikmets et al. 1997b).

PMID: 9973280

Gene: ABCA4

HGNCID: HGNC:34

GenotypingMethod: combined SSCP and heteroduplex analyses of all 50 exons of ABCA4, Sanger sequencing

Pedigree AR417: onset at 8 years 2 segregations, 2 out of 3 offspring affected by STGD, parents and grandmother unaffected Variant: G1961E, A1038V CAID: CA119132, CA119135)

Pedigree AR427: onset at 12 years 1 segregation, 1 out of 2 offspring affected by STGD, parents unaffected Variant: G1961E, C75G CAID: CA119132, CA226985

Pedigree AR370: onset at 13 years 1 segregation, 1 out of 3 offspring affected by STGD, parents and grandparents unaffected Variant: G1961E, C1490Y CAID: CA119132, CA227198

Pedigree AR 218: onset at 14 years family history of AMD, was first reported by Anderson et al. [1995] Variant: G1961E, 2160+1G>C CAID: CA119132, CA226984

Pedigree AR 373: onset at 19 years 2 segregations, 2 out of 3 offspring affected by STGD, parents and grandparents unaffected Variant: G1961E, 4253+5G>T CAID: CA119132, CA227174

Pedigree AR 274: onset at 20 years 1 segregation, 1 out of 4 siblings affected by STGD, parents and grandparents unaffected Variant: G1961E, A1038V CAID: CA119132, CA119135

Annotating here since the full text is a PDF.

Case#: Family AR321 proband, US, 6yo at onset

DiseaseAssertion: Stargardt

FamilyInfo: proband and two other siblings are affected

CasePresentingHPOs: The essential and defining features of STGD were (1) pedigrees with at least one living affected individual compatible with autosomal recessive inheritance; (2) an ophthalmoscopically characteristic retinal disorder in families with both parents living; (3) bilateral central visual loss with both “beaten metal” elliptical foveal dystrophy and temporal pallor of the optic discs, documented by retinal color photography, with or without yellow-pigment epithelial flecks in the macular and/or retinal “near periphery”; and (4) the characteristic fluorescein angiographic feature of a dark choroid (Blacharski 1988).

CaseHPOFreeText:

CaseNotHPOs:

CaseNotHPOFreeText: (1) evidence of autosomal dominant inheritance; (2) any history of night blindness, loss of peripheral vision, or "retinitis pigmentosa"; (3) cataracta complicata or cells in the vitreous; (4) substantially abnormal electroretinographic or electrooculographic responses; (5) no fluorescein angiography performed or no dark choroid documented; (6) neurological disease (including loss of cognition or seizures); 7) drug exposures (especially to antimalarial and agents known to cause crystalline retinopathies); or (8) any "atypical" maculopathies in which a unique diagnosis of STGD could not be established.

PreviouslyPublished: PMID: 8533764

Variant: c.3113C>T p.A1038V; c.1715G>C p.R572P . Heteroduplex and SSCP analyses were used to screen the 50 exons of ABCA4. Linkage analysis and haplotype analysis were previously performed

ClinVar: 99073

CAID: CA226919

SupplementalData: n/a

PMID:39398711

Gene: ABCA4

HGNC ID: 34

Case Annotation Template

Case#: 19-year-old male

DiseaseAssertion: Stargardt disease 1 (STGD1)

FamilyInfo: No family history of eye disease reported. Autosomal recessive inheritance consistent with STGD1. Homozygous ABCA4 variant identified.

CasePresentingHPOs: DecreasedCentralVA, MacularAtrophy, MacularFlecks, PeripapillarySparing, OpticNervePallor

CaseHPOFreeText: Five-year history of progressive bilateral central vision loss, worse at near. Alternating exotropia measuring 16 prism diopters in all gazes OU. Best corrected visual acuity 20/200 OU. Fundus examination revealed pigment deposition and macular mottling. Fundus autofluorescence showed central decreased autofluorescence surrounded by increased autofluorescence. Fluorescein angiography demonstrated dark choroid. OCT showed loss of the central ellipsoid zone with hyperreflective deposits. Multifocal ERG demonstrated significant functional loss.

CaseNotHPOs: NightBlindness

CaseNotHPOFreeText: Patient denied nyctalopia, photophobia, or flashes. Color vision normal on Ishihara testing.

Genotyping Method: Genotyping Method: Next-generation sequencing (NGS) with deletion/duplication analysis (Invitae Corporation).

PreviouslyPublished: N/A

Variant: ABCA4 c.52C>T (p.Arg18Trp)

ClinVar: ClinVarID:7899

CAID: N/A

SupplementalData: N/A

another case with 541 variant potentially not in cis with 1038

This variant is reported in Table S6, but only location, predictions, frequencies, etc are reported for it, not cases.

This variant is reported in Table S6, but only location, predictions, frequencies, etc are reported for it, not cases.

PMID: 36471740

Gene: ABCA4

HGNC ID: 34

Unable to find this variant in the text or supplementary even though Mastermind says it's in supplemental MOESM1

Case#: Patient 225, Female, age of onset 7 y.o, Poland

DiseaseAssertion: STGD-1

FamilyInfo: no given family information.

CasePresentingHPOs: HP:0007722, HP:0000608, HP:0025158

CaseHPOFreeText: RPE atrophy, macular degeneration, central hyper-autofluorescence in fundus autofluorescence

CaseNotHPOs: n/a

CaseNotHPOFreeText: n/a, non-proband identified HPO's mentioned, but not assignable to individual proband.

Genotyping Method: DNA isolated from peripheral blood from patients and relatives via MagNA Pure 24, samples screened with MIPs targeting 108 genes involved in pathogensis of IRD's. PCR completed on library, analysed with NGS fragment analysis kit.

PreviouslyPublished: yes

Variant: c.[1622T>C;3113C>T]

ClinVar: 99067, 7894

CAID: n/a

gnomeAD 0.0001266 allele frequency

SupplementalData: Fig1: List of families displaying pseudo-dominant inheritance. Fig2: Number of alleles for most common variants.

PMID:39967245

Gene: ABCA4

HGNC ID: 34

Case#:39 man

DiseaseAssertion:NA

FamilyInfo:NA

CasePresentingHPOs:Snellen in both eye, visual impairment with night blindnessisual acuity was 20/20Snellen in both eyes, with a minor correction for astig-matism. The anterior segment and intraocular pressurewere within normal limits. On fundus examination, dif-fuse fleck-like lesions were scattered both inside and out-side the arcades, while sharply demarcated areas ofmacular atrophy with foveal sparing, more pronouncedin the left eye, were visible.

CaseHPOFreeText:NA

CaseNotHPOs:NA

CaseNotHPOFreeText:

Genotyping Method:Next-Generation Sequencing (NGS), using theTruSight One Clinical Exome sequencing panel on anIllumina NexSeq500 platform, enriching for 4800 genesincluding ABCA4, CNGB3, ELOVL4, PROM1, and PRPH2

PreviouslyPublished:Under refernces?

Variant:WDR19 variants:the novel deletion at c.1777 + 1 within the donor splicingsite (class 4) and the rare c.1430 G>T variant causing theamino-acid substitution p.(Arg477Leu) (class 3) in the putative protein. Additionally, a heterozygous c.1793A>G(class 3) variant in the CDH23 gene was found, though it was deemed as not contributive to the patient’s clinical phenotype. All reported variants were confirmed throughSanger sequencing

ClinVar:NA

CAID:NA

SupplementalData:NA

Case#: Family 12 Proband, male, 43yo at onset, Portuguese

DiseaseAssertion: Stargardt

FamilyInfo: no affected family members in pedigree (Fig. 1)

CasePresentingHPOs: HP:0007663

CaseHPOFreeText: "The criteria for STGD phenotype included bilateral central vision loss and pigmentary macular lesions, normal caliber of retinal vessels, absence of pigmented bone spicules, and compatibility with recessive mode of inheritance." Moderate central retinal changes, decreased mfERG responses exclusively in the central 15 degrees

CaseNotHPOs:

CaseNotHPOFreeText:

PreviouslyPublished: n/a

Variant: p.Glu1574X; p.Val931Met. Several other polymorphisms also reported. ABCR400 gene chip microarray, DHPLC

ClinVar: 1460063

CAID: CA341283936

SupplementalData: n/a

PMID: 23949494 HGNC: 34 Gene: ABCA4 DiseaseAssertion: Stargardt Disease

Case#: Bryant Subject JB260, US

DiseaseAssertion: Stargardt

FamilyInfo:

CasePresentingHPOs: "Stargardt disease is a childhood-onset macular degeneration and is most commonly caused by mutations in ABCA4. Characteristic yellow flecks are typically seen under the macula during a fundus exam."

CaseHPOFreeText:

CaseNotHPOs:

CaseNotHPOFreeText:

GenotypingMethod: WES; previously screened using arrayed primer extension (APEX) multigene panels for the relevant disease and no disease-causing variants had been identified; PCR and Sanger for verification

PreviouslyPublished: n/a

Variant: c.6119G>A p.Arg2040Gln; c.2879del p.Ala960Aspfs*17

CAID: CA232815

SupplementalData:

PMID:39215425

Gene: ABCA4

HGNC ID: 34

case27-year-old male, the brother of case 1

DiseaseAssertion: Table 1 The summary of the clinical assessment of IRD patients’ family in this research fro there down they did a whole pannel on the family

Pedigree one can be fore form the beggginnings of case presention section?

CasePresentingHPOs: Case 2, a 27-year-old male, the brother of case 1 had blurry vision which was not corrected with an eyeglass and inconveniences under bright light starting from 14 years ago. Case 2 also underwent a fundus examination after finding that case 1 was RP. In further examination of those patients and their family members found that case 1 was confirmed as RP and case 2

CaseHPOFreeText:NA

CaseNotHPOs:NA

CaseNotHPOFreeText:NA

Genotyping Method:NA

PreviouslyPublished:NA

Variant:NA

ClinVar:

CAID:NA

SupplementalData:NA

Inheritance pattern Autosomal Recessive

Case#: Patients were identified from the inherited retinal disease (IRD) database at UC San Diego (UCSD).

DiseaseAssertion: RP with macular edema

FamilyInfo:

CasePresentingHPOs:

CaseHPOFreeText: Dx of RP based on "a history of progressive peripheral vision loss or nyctalopia, and ocular examination findings of RP including bone spicule pigmentation, disc pallor and attenuated vessels and genetic confirmation."

CaseNotHPOs:

CaseNotHPOFreeText:

GenotypingMethod: Next-generation sequencing (NGS), exome sequencing, and/or targeted Sanger sequencing were the primary genetic testing approaches.

PreviouslyPublished: PMID:10206579 is referenced but it seems a reference to the variant and not the proband

Variant: c.6383A>G (p.His2128Arg); c.3G>T (p.Met1?). phase unknown

ClinVar: 99455

CAID: CA227399

SupplementalData: Variant is found in table S2