chr4-186153762-C-A

Position:

• chr4-186153762-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001395294.1(FAM149A):​c.1077C>A​(p.Asn359Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 34)
• Consequence: FAM149A NM_001395294.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.456

Genes affected

FAM149A (HGNC:24527): (family with sequence similarity 149 member A)

ACMG classification

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=0.118774205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAM149A	NM_001395294.1	c.1077C>A	p.Asn359Lys	missense_variant	5/14	ENST00000706927.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAM149A	ENST00000706927.1	c.1077C>A	p.Asn359Lys	missense_variant	5/14		NM_001395294.1	A2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 34

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 06, 2023

The c.204C>A (p.N68K) alteration is located in exon 5 (coding exon 2) of the FAM149A gene. This alteration results from a C to A substitution at nucleotide position 204, causing the asparagine (N) at amino acid position 68 to be replaced by a lysine (K). 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	0.25
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	14
DANN	Benign	0.96
DEOGEN2	Benign	0.021	.;T;.;.;.;.;.
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.76
FATHMM_MKL	Benign	0.063	N
LIST_S2	Benign	0.65	.;T;T;.;.;T;T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.12	T;T;T;T;T;T;T
MetaSVM	Benign	-0.95	T
MutationAssessor	Uncertain	2.7	.;M;.;.;.;.;.
MutationTaster	Benign	1.0	N;N;N;N;N;N
PrimateAI	Benign	0.36	T
PROVEAN	Uncertain	-2.7	D;D;D;D;D;D;D
REVEL	Benign	0.056
Sift	Uncertain	0.019	D;T;D;D;D;D;D
Sift4G	Uncertain	0.014	D;T;D;D;D;D;D
Polyphen		0.85	.;P;.;.;.;.;.
Vest4		0.31
MutPred		0.29		.;Gain of ubiquitination at N359 (P = 0.0077);.;.;.;.;.;
MVP		0.15
MPC		0.39
ClinPred		0.78	D
GERP RS		0.66
Varity_R		0.17
gMVP		0.20

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.18		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-187074916;