chrX-154445817-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_004699.4(FAM50A):​c.202G>A​(p.Val68Met) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,096,216 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000027 ( 0 hom. 0 hem. )

Consequence

FAM50A
NM_004699.4 missense

Scores

5
9
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.29
Variant links:
Genes affected
FAM50A (HGNC:18786): (family with sequence similarity 50 member A) This gene belongs to the FAM50 family. The encoded protein is highly conserved in length and sequence across different species. It is a basic protein containing a nuclear localization signal, and may function as a DNA-binding protein or a transcriptional factor. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.805

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAM50ANM_004699.4 linkuse as main transcriptc.202G>A p.Val68Met missense_variant 3/13 ENST00000393600.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAM50AENST00000393600.8 linkuse as main transcriptc.202G>A p.Val68Met missense_variant 3/131 NM_004699.4 P1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182716
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67538
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
3
AN:
1096216
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
361668
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000185
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000238
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 24, 2022The c.202G>A (p.V68M) alteration is located in exon 3 (coding exon 3) of the FAM50A gene. This alteration results from a G to A substitution at nucleotide position 202, causing the valine (V) at amino acid position 68 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.95
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Uncertain
0.13
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
D;.
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Benign
0.059
D
MetaRNN
Pathogenic
0.81
D;D
MetaSVM
Benign
-0.49
T
MutationAssessor
Uncertain
2.9
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-2.5
D;D
REVEL
Uncertain
0.38
Sift
Uncertain
0.018
D;D
Sift4G
Uncertain
0.0020
D;D
Polyphen
0.99
D;.
Vest4
0.57
MutPred
0.71
Gain of disorder (P = 0.0666);.;
MVP
0.74
MPC
2.4
ClinPred
0.93
D
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.45
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs782164633; hg19: chrX-153674165; API