Genetic Variant KIAA0040:p.Val39Met (chr1-175160899-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014656.3(KIAA0040):c.115G>A(p.Val39Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000193 in 1,551,568 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/14 in silico tools predict a benign 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. V39L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KIAA0040
NM_014656.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.17

Publications

0 publications found

Variant links:

Genes affected

KIAA0040 (HGNC:28950): (KIAA0040) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

KIAA0040 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.019215316).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014656.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KIAA0040	NM_014656.3	MANE Select	c.115G>A	p.Val39Met	missense	Exon 4 of 4	NP_055471.2	Q15053
KIAA0040	NM_001162893.2		c.115G>A	p.Val39Met	missense	Exon 5 of 5	NP_001156365.1	Q15053
KIAA0040	NM_001162894.2		c.115G>A	p.Val39Met	missense	Exon 4 of 4	NP_001156366.1	Q15053

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KIAA0040	ENST00000423313.6	TSL:1 MANE Select	c.115G>A	p.Val39Met	missense	Exon 4 of 4	ENSP00000462172.1	Q15053
KIAA0040	ENST00000444639.5	TSL:1	c.115G>A	p.Val39Met	missense	Exon 4 of 4	ENSP00000463734.1	Q15053
KIAA0040	ENST00000545251.6	TSL:1	c.115G>A	p.Val39Met	missense	Exon 3 of 3	ENSP00000464040.1	Q15053

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152112

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:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000649

AC:

AN:

154190

AF XY:

0.0000122

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000917

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000143

AC:

AN:

1399338

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690170

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31596

American (AMR)

AF:

0.00

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35738

South Asian (SAS)

AF:

0.00

AC:

AN:

79226

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49274

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5658

European-Non Finnish (NFE)

AF:

9.27e-7

AC:

AN:

1078966

Other (OTH)

AF:

0.0000172

AC:

AN:

57994

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

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:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74418

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41550

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000193

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2114

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ExAC

AF:

0.0000833

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Benign

0.74

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.57

M_CAP

Benign

0.061

MetaRNN

Benign

0.019

PhyloP100

3.2

PrimateAI

Benign

0.46

Sift4G

Pathogenic

0.0

Vest4

0.34

MVP

0.12

GERP RS

4.7

Varity_R

0.051

gMVP

0.16

Mutation Taster

=93/7

polymorphism

(source)

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

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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