Genetic Variant FAM186B:p.Glu773del (chr12-49598799-TCTC-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PM4_Supporting

The NM_032130.3(FAM186B):c.2317_2319delGAG(p.Glu773del) variant causes a conservative inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,611,446 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

FAM186B
NM_032130.3 conservative_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.74

Publications

0 publications found

Variant links:

Genes affected

FAM186B (HGNC:25296): (family with sequence similarity 186 member B) This gene product is a member of the FAM186 family, however, its exact function is not known. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2009]

FAM186B links:

PRPF40B (HGNC:25031): (pre-mRNA processing factor 40 homolog B) This gene encodes a WW-domain containing protein similar to yeast splicing factor PRP40. This protein has been shown to interact with Huntingtin and methyl CpG binding protein 2 (MeCP2). Alternative splicing results in different transcript variants. [provided by RefSeq, Aug 2014]

PRPF40B links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM4

Nonframeshift variant in NON repetitive region in NM_032130.3. Strenght limited to Supporting due to length of the change: 1aa.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032130.3. 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
	FAM186B	NM_032130.3	MANE Select	c.2317_2319delGAG	p.Glu773del	conservative_inframe_deletion	Exon 5 of 7	NP_115506.1	Q8IYM0-1
	FAM186B	NR_027450.2		n.2659_2661delGAG		non_coding_transcript_exon	Exon 5 of 7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FAM186B	ENST00000257894.2	TSL:1 MANE Select	c.2317_2319delGAG	p.Glu773del	conservative_inframe_deletion	Exon 5 of 7	ENSP00000257894.2	Q8IYM0-1
FAM186B	ENST00000532262.5	TSL:1	c.1156_1158delGAG	p.Glu386del	conservative_inframe_deletion	Exon 2 of 5	ENSP00000436995.1	A0A0C4DGG0
FAM186B	ENST00000551047.5	TSL:5	c.633+2205_633+2207delGAG		intron	N/A	ENSP00000448656.1	F8VRJ5

Frequencies

GnomAD3 genomes

AF:

0.0000333

AC:

AN:

150098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000246

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000663

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000398

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000484

GnomAD2 exomes

AF:

0.00000800

AC:

AN:

249862

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000889

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461348

Hom.:

AF XY:

0.00000963

AC XY:

AN XY:

727030

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.000101

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53066

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5670

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1111982

Other (OTH)

AF:

0.0000331

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.455

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:

0.0000333

AC:

AN:

150098

Hom.:

Cov.:

AF XY:

0.0000547

AC XY:

AN XY:

73126

show subpopulations

African (AFR)

AF:

0.0000246

AC:

AN:

40722

American (AMR)

AF:

0.0000663

AC:

AN:

15094

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3454

East Asian (EAS)

AF:

0.000398

AC:

AN:

5020

South Asian (SAS)

AF:

0.00

AC:

AN:

4594

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10458

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67468

Other (OTH)

AF:

0.000484

AC:

AN:

2066

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.455

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000718

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.7

Mutation Taster

=75/25

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over