Genetic Variant FAM185A:p.Thr234Asn (chr7-102761319-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_001145268.2(FAM185A):c.701C>A(p.Thr234Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000291 in 1,546,852 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 0.000059 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

FAM185A
NM_001145268.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.63

Publications

0 publications found

Variant links:

Genes affected

FAM185A (HGNC:22412): (family with sequence similarity 185 member A)

FAM185A links:

Genome browser will be placed here

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, 0.845

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM185A	NM_001145268.2 link	c.701C>A	p.Thr234Asn	missense_variant	Exon 4 of 8	ENST00000413034.3	NP_001138740.2	Q8N0U4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM185A	ENST00000413034.3 link	c.701C>A	p.Thr234Asn	missense_variant	Exon 4 of 8	5	NM_001145268.2	ENSP00000395340.2		Q8N0U4-1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152060

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000258

AC:

AN:

1394792

Hom.:

Cov.:

AF XY:

0.0000320

AC XY:

AN XY:

687732

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31214

American (AMR)

AF:

0.00

AC:

AN:

34962

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25080

East Asian (EAS)

AF:

0.00

AC:

AN:

35256

South Asian (SAS)

AF:

0.0000383

AC:

AN:

78316

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49458

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5678

European-Non Finnish (NFE)

AF:

0.0000306

AC:

AN:

1076900

Other (OTH)

AF:

0.00

AC:

AN:

57928

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152060

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74278

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41392

American (AMR)

AF:

0.00

AC:

AN:

15258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.0000491

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 07, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.701C>A (p.T234N) alteration is located in exon 4 (coding exon 4) of the FAM185A gene. This alteration results from a C to A substitution at nucleotide position 701, causing the threonine (T) at amino acid position 234 to be replaced by an asparagine (N). 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

0.64

BayesDel_addAF

Uncertain

0.020

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.23

.;T

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.025

MetaRNN

Pathogenic

0.84

D;D

MetaSVM

Benign

-0.42

MutationAssessor

Uncertain

2.9

.;M

PhyloP100

5.6

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-4.0

D;D

REVEL

Uncertain

0.36

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.0080

D;D

Polyphen

1.0

D;D

Vest4

0.66

MutPred

0.72

.;Gain of relative solvent accessibility (P = 0.0479);

MVP

0.21

ClinPred

0.98

GERP RS

4.2

Varity_R

0.38

gMVP

0.78

Mutation Taster

=55/45

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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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chr7-102761319-C-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over