rs34266136

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_024513.4(FYCO1):c.2294G>A(p.Arg765His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00157 in 1,613,492 control chromosomes in the GnomAD database, including 47 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0078 ( 21 hom., cov: 33)

Exomes 𝑓: 0.00092 ( 26 hom. )

Consequence

FYCO1
NM_024513.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.00

Publications

5 publications found

Variant links:

Genes affected

FYCO1 (HGNC:14673): (FYVE and coiled-coil domain autophagy adaptor 1) The gene encodes a Rab7 adapter protein that is implicated in the microtubule transport of autophagosomes. The encoded protein contains a RUN domain, a FYVE-type zinc finger domain, and Golgi dynamics (GOLD) domain. The encoded protein plays a role in microtubule plus end-directed transport of autophagic vesicles through interactions with the small GTPase Rab7, phosphatidylinositol-3-phosphate (PI3P), the autophagosome marker LC3, and the kinesin KIF5. Mutations in this gene are associated with inclusion body myositis (IBM) and autosomal recessive congenital cataracts (CATC2). [provided by RefSeq, Aug 2020]

FYCO1 Gene-Disease associations (from GenCC):

cataract 18
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
early-onset nuclear cataract
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
total early-onset cataract
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

FYCO1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0026426911).

BP6

Variant 3-45967040-C-T is Benign according to our data. Variant chr3-45967040-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 468440.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00777 (1183/152342) while in subpopulation AFR AF = 0.0266 (1105/41582). AF 95% confidence interval is 0.0253. There are 21 homozygotes in GnomAd4. There are 553 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 21 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FYCO1	NM_024513.4 link	c.2294G>A	p.Arg765His	missense_variant	Exon 8 of 18	ENST00000296137.7	NP_078789.2	Q9BQS8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FYCO1	ENST00000296137.7 link	c.2294G>A	p.Arg765His	missense_variant	Exon 8 of 18	1	NM_024513.4	ENSP00000296137.2		Q9BQS8-1

Frequencies

GnomAD3 genomes

AF:

0.00775

AC:

1179

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0265

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00347

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000827

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00573

GnomAD2 exomes

AF:

0.00215

AC:

538

AN:

250600

AF XY:

0.00158

show subpopulations

Gnomad AFR exome

AF:

0.0286

Gnomad AMR exome

AF:

0.00147

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000529

Gnomad OTH exome

AF:

0.00131

GnomAD4 exome

AF:

0.000924

AC:

1350

AN:

1461150

Hom.:

Cov.:

AF XY:

0.000795

AC XY:

578

AN XY:

726880

show subpopulations

African (AFR)

AF:

0.0312

AC:

1045

AN:

33478

American (AMR)

AF:

0.00192

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.000290

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.0000569

AC:

AN:

52700

Middle Eastern (MID)

AF:

0.00156

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000612

AC:

AN:

1112004

Other (OTH)

AF:

0.00187

AC:

113

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

Heterozygous variant carriers

182

272

363

454

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

108

144

180

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00777

AC:

1183

AN:

152342

Hom.:

Cov.:

AF XY:

0.00742

AC XY:

553

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.0266

AC:

1105

AN:

41582

American (AMR)

AF:

0.00340

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000828

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68034

Other (OTH)

AF:

0.00567

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

115

173

230

288

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00298

Hom.:

Bravo

AF:

0.00921

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.0256

AC:

113

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00253

AC:

307

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Cataract 18

Benign:2

Oct 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided

Benign:2

Jun 22, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

FYCO1-related disorder

Benign:1

Jun 08, 2020

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.75

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.043

(source)

DANN

Benign

0.79

DEOGEN2

Benign

0.0045

.;T

Eigen

Benign

-1.9

Eigen_PC

Benign

-1.9

FATHMM_MKL

Benign

0.041

LIST_S2

Benign

0.61

T;T

MetaRNN

Benign

0.0026

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-0.41

N;N

PhyloP100

0.0

PrimateAI

Benign

0.21

PROVEAN

Benign

-0.63

N;N

REVEL

Benign

0.027

Sift

Benign

0.14

T;T

Sift4G

Benign

0.13

T;T

Polyphen

0.0010

.;B

Vest4

0.050

MVP

0.081

MPC

0.20

ClinPred

0.011

GERP RS

-9.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.020

gMVP

0.058

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over