2-96972055-A-C

Variant summary

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

The NM_001122646.3(FAM178B):c.410T>G(p.Val137Gly) 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. 13/18 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: FAM178B NM_001122646.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.386

Genes affected

FAM178B (HGNC:28036): (family with sequence similarity 178 member B)

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=0.07659498).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FAM178B	NM_001122646.3	c.410T>G	p.Val137Gly	missense_variant	3/17	ENST00000490605.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FAM178B	ENST00000490605.3	c.410T>G	p.Val137Gly	missense_variant	3/17	5	NM_001122646.3	P1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 30

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

Jun 18, 2021

The c.410T>G (p.V137G) alteration is located in exon 3 (coding exon 3) of the FAM178B gene. This alteration results from a T to G substitution at nucleotide position 410, causing the valine (V) at amino acid position 137 to be replaced by a glycine (G). 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	0.074
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.52
Cadd	Benign	0.61
Dann	Benign	0.93
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.017	N
LIST_S2	Benign	0.16	T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.077	T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-0.15	N
REVEL	Benign	0.017
Sift	Uncertain	0.015	D
Sift4G	Uncertain	0.024	D
Vest4		0.077
MVP		0.22
MPC		0.080
ClinPred		0.065	T
GERP RS		-0.59
gMVP		0.038

Splicing

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: chr2-97637792;