Genetic Variant FAM193B:p.Arg487Pro (chr5-177525021-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001190946.3(FAM193B):c.1460G>C(p.Arg487Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000128 in 1,557,738 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R487C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

FAM193B
NM_001190946.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.82

Publications

0 publications found

Variant links:

Genes affected

FAM193B (HGNC:25524): (family with sequence similarity 193 member B) Located in cytoplasm; nuclear speck; and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

FAM193B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001190946.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FAM193B	NM_001190946.3	MANE Select	c.1460G>C	p.Arg487Pro	missense	Exon 6 of 9	NP_001177875.1	Q96PV7-3
FAM193B	NM_001410826.1		c.1700G>C	p.Arg567Pro	missense	Exon 7 of 10	NP_001397755.1	Q96PV7-1
FAM193B	NM_001366500.1		c.1361G>C	p.Arg454Pro	missense	Exon 7 of 10	NP_001353429.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FAM193B	ENST00000514747.6	TSL:5 MANE Select	c.1460G>C	p.Arg487Pro	missense	Exon 6 of 9	ENSP00000422131.1	Q96PV7-3
FAM193B	ENST00000505569.5	TSL:1	n.467G>C		non_coding_transcript_exon	Exon 1 of 4
FAM193B	ENST00000506955.5	TSL:1	n.*2690G>C		non_coding_transcript_exon	Exon 9 of 12	ENSP00000424961.1	D6REQ2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD2 exomes

AF:

0.00000493

AC:

AN:

202812

AF XY:

0.00000914

show subpopulations

Gnomad AFR exome

AF:

0.0000683

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.11e-7

AC:

AN:

1405526

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

695176

show subpopulations

African (AFR)

AF:

0.0000320

AC:

AN:

31242

American (AMR)

AF:

0.00

AC:

AN:

34404

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22718

East Asian (EAS)

AF:

0.00

AC:

AN:

38294

South Asian (SAS)

AF:

0.00

AC:

AN:

76754

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51858

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5492

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1086936

Other (OTH)

AF:

0.00

AC:

AN:

57828

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

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:

0.00000657

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74366

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41446

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.79

BayesDel_addAF

Benign

-0.065

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.061

MetaRNN

Uncertain

0.51

MetaSVM

Benign

-0.51

PhyloP100

5.8

PrimateAI

Benign

0.25

PROVEAN

Uncertain

-3.7

REVEL

Benign

0.28

Sift

Uncertain

0.022

Sift4G

Benign

0.28

Vest4

0.62

MVP

0.093

MPC

0.77

ClinPred

0.95

GERP RS

4.9

gMVP

0.32

Mutation Taster

=60/40

polymorphism

(source)

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

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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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over