Genetic Variant FAM98C:p.Cys43Tyr (chr19-38403400-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_174905.4(FAM98C):c.128G>A(p.Cys43Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000966 in 1,449,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

FAM98C
NM_174905.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.34

Variant links:

Genes affected

FAM98C (HGNC:27119): (family with sequence similarity 98 member C) Predicted to be part of tRNA-splicing ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

FAM98C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.889

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM98C	NM_174905.4 link	c.128G>A	p.Cys43Tyr	missense_variant	Exon 2 of 8	ENST00000252530.10	NP_777565.3	Q17RN3-1
FAM98C	NM_001351675.1 link	c.128G>A	p.Cys43Tyr	missense_variant	Exon 2 of 6		NP_001338604.1
FAM98C	XM_017026354.2 link	c.128G>A	p.Cys43Tyr	missense_variant	Exon 2 of 6		XP_016881843.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM98C	ENST00000252530.10 link	c.128G>A	p.Cys43Tyr	missense_variant	Exon 2 of 8	1	NM_174905.4	ENSP00000252530.4		Q17RN3-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000100

AC:

AN:

1297666

Hom.:

Cov.:

AF XY:

0.0000157

AC XY:

AN XY:

638438

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000146

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000115

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152226

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

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

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 26, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.128G>A (p.C43Y) alteration is located in exon 2 (coding exon 2) of the FAM98C gene. This alteration results from a G to A substitution at nucleotide position 128, causing the cysteine (C) at amino acid position 43 to be replaced by a tyrosine (Y). 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

Pathogenic

0.69

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.28

T;T;.

Eigen

Uncertain

0.66

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.79

T;T;T

M_CAP

Pathogenic

0.29

MetaRNN

Pathogenic

0.89

D;D;D

MetaSVM

Benign

-0.48

MutationAssessor

Pathogenic

3.1

.;M;M

PrimateAI

Pathogenic

0.91

PROVEAN

Pathogenic

-5.2

.;D;D

REVEL

Uncertain

0.47

Sift

Uncertain

0.0070

.;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0, 1.0

.;D;D

Vest4

0.73

MutPred

0.72

Loss of disorder (P = 0.0934);Loss of disorder (P = 0.0934);Loss of disorder (P = 0.0934);

MVP

0.63

MPC

3.1

ClinPred

1.0

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.56

gMVP

0.75

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over