4-2663199-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001366318.2(FAM193A):​c.1990C>T​(p.Pro664Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000217 in 1,613,948 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

FAM193A
NM_001366318.2 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.20
Variant links:
Genes affected
FAM193A (HGNC:16822): (family with sequence similarity 193 member A)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.05878365).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAM193ANM_001366318.2 linkuse as main transcriptc.1990C>T p.Pro664Ser missense_variant 12/21 ENST00000637812.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAM193AENST00000637812.2 linkuse as main transcriptc.1990C>T p.Pro664Ser missense_variant 12/215 NM_001366318.2 A2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152086
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000140
AC:
35
AN:
250772
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135798
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00101
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000226
AC:
33
AN:
1461862
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000738
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152086
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74296
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000277
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000906
AC:
11

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 15, 2024The c.1117C>T (p.P373S) alteration is located in exon 10 (coding exon 8) of the FAM193A gene. This alteration results from a C to T substitution at nucleotide position 1117, causing the proline (P) at amino acid position 373 to be replaced by a serine (S). 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
Benign
0.089
BayesDel_addAF
Benign
-0.55
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
14
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0081
.;.;.;T;.;.;T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.12
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.89
D;D;D;D;D;.;D
M_CAP
Benign
0.0082
T
MetaRNN
Benign
0.059
T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.69
.;N;N;N;.;N;.
MutationTaster
Benign
0.97
D;D;D;D;D
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.4
.;N;N;N;N;N;N
REVEL
Benign
0.042
Sift
Benign
0.083
.;T;T;D;T;T;T
Sift4G
Benign
0.58
.;T;T;T;T;T;T
Polyphen
0.063, 0.11
.;.;B;B;.;.;.
Vest4
0.28, 0.33, 0.31, 0.24, 0.32
MutPred
0.17
.;Loss of glycosylation at K374 (P = 0.0202);Loss of glycosylation at K374 (P = 0.0202);Loss of glycosylation at K374 (P = 0.0202);.;Loss of glycosylation at K374 (P = 0.0202);.;
MVP
0.068
MPC
0.33
ClinPred
0.091
T
GERP RS
4.7
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.7
Varity_R
0.037
gMVP
0.15

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: rs762768515; hg19: chr4-2664926; API