4-186156079-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001395294.1(FAM149A):​c.1336C>T​(p.Arg446Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,613,762 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

FAM149A
NM_001395294.1 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.914
Variant links:
Genes affected
FAM149A (HGNC:24527): (family with sequence similarity 149 member A)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.071332216).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAM149ANM_001395294.1 linkuse as main transcriptc.1336C>T p.Arg446Cys missense_variant 7/14 ENST00000706927.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAM149AENST00000706927.1 linkuse as main transcriptc.1336C>T p.Arg446Cys missense_variant 7/14 NM_001395294.1 A2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152152
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251128
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135712
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
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:
0.0000342
AC:
50
AN:
1461610
Hom.:
0
Cov.:
34
AF XY:
0.0000261
AC XY:
19
AN XY:
727122
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000369
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152152
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000141
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.00000824
AC:
1

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 GeneticsApr 07, 2023The c.463C>T (p.R155C) alteration is located in exon 7 (coding exon 4) of the FAM149A gene. This alteration results from a C to T substitution at nucleotide position 463, causing the arginine (R) at amino acid position 155 to be replaced by a cysteine (C). 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
0.10
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
18
DANN
Benign
0.73
DEOGEN2
Benign
0.0042
.;T;.;.;.;.
Eigen
Benign
-0.94
Eigen_PC
Benign
-0.89
FATHMM_MKL
Benign
0.17
N
LIST_S2
Benign
0.022
.;T;.;.;T;T
M_CAP
Benign
0.0055
T
MetaRNN
Benign
0.071
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.20
.;N;.;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-1.8
N;N;N;N;N;N
REVEL
Benign
0.055
Sift
Benign
0.20
T;T;T;T;T;T
Sift4G
Benign
0.21
T;T;T;T;T;T
Polyphen
0.0
.;B;.;.;.;.
Vest4
0.18
MutPred
0.39
.;Gain of catalytic residue at P445 (P = 0.0046);.;.;.;.;
MVP
0.061
MPC
0.12
ClinPred
0.043
T
GERP RS
1.6
Varity_R
0.052
gMVP
0.22

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs754712900; hg19: chr4-187077233; COSMIC: COSV57030901; COSMIC: COSV57030901; API