Genetic Variant CALHM3:p.Asp343Ala (chr10-103473220-T-G) – 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_001129742.2(CALHM3):c.1028A>C(p.Asp343Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 1,419,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

CALHM3
NM_001129742.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.963

Publications

0 publications found

Variant links:

Genes affected

CALHM3 (HGNC:23458): (calcium homeostasis modulator 3) Predicted to enable cation channel activity. Predicted to be involved in ATP transport. Predicted to be located in basolateral plasma membrane. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

CALHM3 links:

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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=0.06571153).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CALHM3	NM_001129742.2 link	c.1028A>C	p.Asp343Ala	missense_variant	Exon 3 of 3	ENST00000369783.4	NP_001123214.1	Q86XJ0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CALHM3	ENST00000369783.4 link	c.1028A>C	p.Asp343Ala	missense_variant	Exon 3 of 3	1	NM_001129742.2	ENSP00000358798.4		Q86XJ0

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152078

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

GnomAD2 exomes

AF:

0.0000989

AC:

AN:

60670

AF XY:

0.0000335

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000224

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000181

AC:

229

AN:

1267138

Hom.:

Cov.:

AF XY:

0.000172

AC XY:

105

AN XY:

611514

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26580

American (AMR)

AF:

0.00

AC:

AN:

15332

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

18188

East Asian (EAS)

AF:

0.00

AC:

AN:

31980

South Asian (SAS)

AF:

0.00

AC:

AN:

56974

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44894

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5140

European-Non Finnish (NFE)

AF:

0.000219

AC:

222

AN:

1015908

Other (OTH)

AF:

0.000134

AC:

AN:

52142

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152078

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74296

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41406

American (AMR)

AF:

0.0000655

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000117

ExAC

AF:

0.0000490

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 05, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1028A>C (p.D343A) alteration is located in exon 3 (coding exon 3) of the CALHM3 gene. This alteration results from a A to C substitution at nucleotide position 1028, causing the aspartic acid (D) at amino acid position 343 to be replaced by an alanine (A). 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

0.088

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.66

CADD

Benign

(source)

DANN

Uncertain

0.99

Eigen

Benign

-0.67

Eigen_PC

Benign

-0.54

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.42

M_CAP

Benign

0.013

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.0

PhyloP100

0.96

PrimateAI

Benign

0.47

PROVEAN

Benign

-1.0

REVEL

Benign

0.10

Sift

Uncertain

0.017

Sift4G

Pathogenic

0.0

Vest4

0.17

MutPred

0.18

Gain of MoRF binding (P = 0.0516);

MVP

0.20

ClinPred

0.14

GERP RS

5.5

Varity_R

0.16

gMVP

0.49

Mutation Taster

=91/9

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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10-103473220-T-G

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