Genetic Variant NM_005449.5:c.902G>T (chr1-206909808-C-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_005449.5(FCMR):c.902G>T(p.Arg301Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000793 in 1,425,840 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000071 ( 1 hom. )

Consequence

FCMR
NM_005449.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.237

Publications

0 publications found

Variant links:

Genes affected

FCMR (HGNC:14315): (Fc mu receptor) Fc receptors specifically bind to the Fc region of immunoglobulins (Igs) to mediate the unique functions of each Ig class. FAIM3 encodes an Fc receptor for IgM (see MIM 147020) (Kubagawa et al., 2009 [PubMed 19858324]; Shima et al., 2010 [PubMed 20042454]).[supplied by OMIM, Jul 2010]

FCMR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0076310337).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FCMR	NM_005449.5 link	c.902G>T	p.Arg301Met	missense_variant	Exon 6 of 8	ENST00000367091.8	NP_005440.1	O60667-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FCMR	ENST00000367091.8 link	c.902G>T	p.Arg301Met	missense_variant	Exon 6 of 8	1	NM_005449.5	ENSP00000356058.3		O60667-1

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00432

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

GnomAD2 exomes

AF:

0.000460

AC:

AN:

26094

AF XY:

0.000347

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00109

Gnomad ASJ exome

AF:

0.00559

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:

0.0000707

AC:

AN:

1273624

Hom.:

Cov.:

AF XY:

0.0000770

AC XY:

AN XY:

623050

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

24606

American (AMR)

AF:

0.000752

AC:

AN:

14634

Ashkenazi Jewish (ASJ)

AF:

0.00268

AC:

AN:

19018

East Asian (EAS)

AF:

0.00

AC:

AN:

28224

South Asian (SAS)

AF:

0.00

AC:

AN:

60778

European-Finnish (FIN)

AF:

0.00

AC:

AN:

37664

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4724

European-Non Finnish (NFE)

AF:

0.0000175

AC:

AN:

1031394

Other (OTH)

AF:

0.000190

AC:

AN:

52582

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000151

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74352

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41462

American (AMR)

AF:

0.000458

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00432

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2092

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:

0.000282

Hom.:

Bravo

AF:

0.000166

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000245

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 14, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.902G>T (p.R301M) alteration is located in exon 6 (coding exon 6) of the FCMR gene. This alteration results from a G to T substitution at nucleotide position 902, causing the arginine (R) at amino acid position 301 to be replaced by a methionine (M). 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

Benign

0.29

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.70

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.33

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.0076

MetaSVM

Benign

-1.1

PhyloP100

-0.24

Sift4G

Benign

0.52

Vest4

0.14

MVP

0.19

ClinPred

0.19

GERP RS

1.1

Varity_R

0.10

Mutation Taster

=97/3

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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NM_005449.5:c.902G>T

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