rs267606793

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PP5_Moderate

The NM_001201543.2(FAM161A):​c.1786C>T​(p.Arg596*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,609,270 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

FAM161A
NM_001201543.2 stop_gained

Scores

2
2
3

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 1.70

Publications

4 publications found
Variant links:
Genes affected
FAM161A (HGNC:25808): (FAM161 centrosomal protein A) This gene belongs to the FAM161 family. It is expressed mainly in the retina. Mouse studies suggested that this gene is involved in development of retinal progenitors during embryogenesis, and that its activity is restricted to mature photoreceptors after birth. Mutations in this gene cause autosomal recessive retinitis pigmentosa-28. Alternatively spliced transcript variants have been identified.[provided by RefSeq, Jan 2011]
FAM161A Gene-Disease associations (from GenCC):
  • retinitis pigmentosa 28
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • retinitis pigmentosa
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 2-61836075-G-A is Pathogenic according to our data. Variant chr2-61836075-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 39.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FAM161ANM_001201543.2 linkc.1786C>T p.Arg596* stop_gained Exon 5 of 7 ENST00000404929.6 NP_001188472.1 Q3B820-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FAM161AENST00000404929.6 linkc.1786C>T p.Arg596* stop_gained Exon 5 of 7 1 NM_001201543.2 ENSP00000385158.1 Q3B820-3

Frequencies

GnomAD3 genomes
AF:
0.0000133
AC:
2
AN:
150532
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000403
AC:
1
AN:
248052
AF XY:
0.00000743
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000254
AC:
37
AN:
1458662
Hom.:
0
Cov.:
31
AF XY:
0.0000221
AC XY:
16
AN XY:
725604
show subpopulations
African (AFR)
AF:
0.0000301
AC:
1
AN:
33230
American (AMR)
AF:
0.00
AC:
0
AN:
44374
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26072
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39614
South Asian (SAS)
AF:
0.0000234
AC:
2
AN:
85370
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53374
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000306
AC:
34
AN:
1110660
Other (OTH)
AF:
0.00
AC:
0
AN:
60214
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000133
AC:
2
AN:
150608
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
73414
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
40974
American (AMR)
AF:
0.00
AC:
0
AN:
15062
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5152
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4746
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10044
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
290
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67874
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.00000828
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Retinitis pigmentosa 28 Pathogenic:2
Mar 02, 2021
Natera, Inc.
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 10, 2010
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Pathogenic:1
Oct 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg596*) in the FAM161A gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in FAM161A are known to be pathogenic (PMID: 20705278, 20705279, 24651477). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This premature translational stop signal has been observed in individuals with retinitis pigmentosa (PMID: 20705279, 28559085). ClinVar contains an entry for this variant (Variation ID: 39). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.29
CADD
Pathogenic
36
DANN
Uncertain
0.99
Eigen
Uncertain
0.24
Eigen_PC
Benign
-0.063
FATHMM_MKL
Benign
0.46
N
PhyloP100
1.7
Vest4
0.27
GERP RS
3.7
Mutation Taster
=8/192
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.25
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.25
Position offset: 34

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

Publications

Other links and lift over

dbSNP: rs267606793; hg19: chr2-62063210; COSMIC: COSV56766277; API