rs143704916

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_024513.4(FYCO1):​c.1474C>T​(p.Arg492Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00254 in 1,613,890 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0026 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0025 ( 14 hom. )

Consequence

FYCO1
NM_024513.4 missense

Scores

4
15

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.06
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004735142).
BP6
Variant 3-45967860-G-A is Benign according to our data. Variant chr3-45967860-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 345523.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-45967860-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00257 (391/152074) while in subpopulation AMR AF= 0.00773 (118/15268). AF 95% confidence interval is 0.0066. There are 2 homozygotes in gnomad4. There are 183 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FYCO1NM_024513.4 linkc.1474C>T p.Arg492Trp 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
FYCO1ENST00000296137.7 linkc.1474C>T p.Arg492Trp missense_variant Exon 8 of 18 1 NM_024513.4 ENSP00000296137.2 Q9BQS8-1

Frequencies

GnomAD3 genomes
AF:
0.00258
AC:
392
AN:
151956
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000435
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00774
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.000755
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00352
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00229
AC:
574
AN:
251070
Hom.:
5
AF XY:
0.00214
AC XY:
291
AN XY:
135702
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00202
Gnomad ASJ exome
AF:
0.000398
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.000425
Gnomad FIN exome
AF:
0.00125
Gnomad NFE exome
AF:
0.00376
Gnomad OTH exome
AF:
0.00473
GnomAD4 exome
AF:
0.00254
AC:
3712
AN:
1461816
Hom.:
14
Cov.:
74
AF XY:
0.00244
AC XY:
1776
AN XY:
727210
show subpopulations
Gnomad4 AFR exome
AF:
0.000448
Gnomad4 AMR exome
AF:
0.00286
Gnomad4 ASJ exome
AF:
0.000383
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.000487
Gnomad4 FIN exome
AF:
0.00142
Gnomad4 NFE exome
AF:
0.00294
Gnomad4 OTH exome
AF:
0.00258
GnomAD4 genome
AF:
0.00257
AC:
391
AN:
152074
Hom.:
2
Cov.:
32
AF XY:
0.00246
AC XY:
183
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.000434
Gnomad4 AMR
AF:
0.00773
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.000416
Gnomad4 FIN
AF:
0.000755
Gnomad4 NFE
AF:
0.00350
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00298
Hom.:
3
Bravo
AF:
0.00335
TwinsUK
AF:
0.00431
AC:
16
ALSPAC
AF:
0.00337
AC:
13
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00384
AC:
33
ExAC
AF:
0.00265
AC:
322
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00322
EpiControl
AF:
0.00462

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Oct 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

FYCO1: BP4 -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Feb 25, 2021
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cataract 18 Benign:2
Mar 12, 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: Likely 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

FYCO1-related disorder Benign:1
Jul 22, 2020
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely 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
0.090
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.042
.;T
Eigen
Benign
-0.24
Eigen_PC
Benign
-0.36
FATHMM_MKL
Benign
0.40
N
LIST_S2
Benign
0.79
T;T
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.0047
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L;L
PrimateAI
Benign
0.18
T
PROVEAN
Uncertain
-2.6
D;D
REVEL
Benign
0.073
Sift
Uncertain
0.010
D;D
Sift4G
Uncertain
0.011
D;D
Polyphen
0.99
.;D
Vest4
0.27
MVP
0.30
MPC
0.38
ClinPred
0.021
T
GERP RS
3.6
Varity_R
0.081
gMVP
0.19

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs143704916; hg19: chr3-46009352; API