Genetic Variant FAM98C:p.Arg127Ser (chr19-38404937-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_174905.4(FAM98C):c.379C>A(p.Arg127Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R127C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

FAM98C
NM_174905.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.57

Publications

1 publications found

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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.919

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_174905.4. 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
	FAM98C	NM_174905.4	MANE Select	c.379C>A	p.Arg127Ser	missense	Exon 4 of 8	NP_777565.3
	FAM98C	NM_001351675.1		c.379C>A	p.Arg127Ser	missense	Exon 4 of 6	NP_001338604.1	Q17RN3-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FAM98C	ENST00000252530.10	TSL:1 MANE Select	c.379C>A	p.Arg127Ser	missense	Exon 4 of 8	ENSP00000252530.4	Q17RN3-1
FAM98C	ENST00000343358.11	TSL:1	c.379C>A	p.Arg127Ser	missense	Exon 4 of 6	ENSP00000340348.6	Q17RN3-2
FAM98C	ENST00000588262.5	TSL:1	c.349+1243C>A		intron	N/A	ENSP00000467974.1	K7EQT7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249288

AF XY:

0.00000739

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.66

BayesDel_addAF

Uncertain

0.033

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.24

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.78

M_CAP

Benign

0.044

MetaRNN

Pathogenic

0.92

MetaSVM

Benign

-0.38

MutationAssessor

Pathogenic

3.1

PhyloP100

3.6

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-3.8

REVEL

Uncertain

0.50

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.69

MutPred

0.81

Loss of MoRF binding (P = 0.0806)

MVP

0.73

MPC

0.79

ClinPred

0.98

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.67

gMVP

0.63

Mutation Taster

=60/40

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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