Genetic Variant FAM178B:p.Gly193Arg (chr2-96970765-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001122646.3(FAM178B):c.577G>C(p.Gly193Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000206 in 1,550,928 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G193C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000019 ( 1 hom. )

Consequence

FAM178B
NM_001122646.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.933

Publications

0 publications found

Variant links:

Genes affected

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

FAM178B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.083866715).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001122646.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FAM178B	NM_001122646.3	MANE Select	c.577G>C	p.Gly193Arg	missense	Exon 4 of 17	NP_001116118.2	Q8IXR5-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FAM178B	ENST00000490605.3	TSL:5 MANE Select	c.577G>C	p.Gly193Arg	missense	Exon 4 of 17	ENSP00000429896.1	Q8IXR5-3

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

151932

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.0000130

AC:

AN:

153986

AF XY:

0.0000122

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000168

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000186

AC:

AN:

1398878

Hom.:

Cov.:

AF XY:

0.0000203

AC XY:

AN XY:

689996

show subpopulations

African (AFR)

AF:

0.0000317

AC:

AN:

31588

American (AMR)

AF:

0.00

AC:

AN:

35686

Ashkenazi Jewish (ASJ)

AF:

0.0000397

AC:

AN:

25178

East Asian (EAS)

AF:

0.0000280

AC:

AN:

35734

South Asian (SAS)

AF:

0.0000884

AC:

AN:

79222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49274

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

1078532

Other (OTH)

AF:

0.00

AC:

AN:

57970

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.448

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74288

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41456

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000209

AC:

AN:

4796

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10566

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67984

Other (OTH)

AF:

0.000474

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000340

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000407

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.53

CADD

Benign

9.3

(source)

DANN

Uncertain

0.99

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.030

LIST_S2

Benign

0.40

M_CAP

Benign

0.026

MetaRNN

Benign

0.084

MetaSVM

Benign

-0.97

PhyloP100

-0.93

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.5

REVEL

Benign

0.046

Sift

Benign

0.10

Sift4G

Uncertain

0.042

Vest4

0.14

MVP

0.32

MPC

0.23

ClinPred

0.086

GERP RS

-2.6

gMVP

0.030

Mutation Taster

=97/3

polymorphism

(source)

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over