chr10-103473482-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001129742.2(CALHM3):​c.766G>A​(p.Ala256Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000387 in 1,549,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

CALHM3
NM_001129742.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.49
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.093914896).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CALHM3NM_001129742.2 linkuse as main transcriptc.766G>A p.Ala256Thr missense_variant 3/3 ENST00000369783.4 NP_001123214.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CALHM3ENST00000369783.4 linkuse as main transcriptc.766G>A p.Ala256Thr missense_variant 3/31 NM_001129742.2 ENSP00000358798 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152264
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000358
AC:
5
AN:
1397244
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
689036
show subpopulations
Gnomad4 AFR exome
AF:
0.0000634
Gnomad4 AMR exome
AF:
0.0000843
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152264
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 20, 2024The c.766G>A (p.A256T) alteration is located in exon 3 (coding exon 3) of the CALHM3 gene. This alteration results from a G to A substitution at nucleotide position 766, causing the alanine (A) at amino acid position 256 to be replaced by a threonine (T). 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
0.096
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
14
DANN
Benign
0.77
DEOGEN2
Benign
0.0047
T
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.15
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.094
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.81
L
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.55
N
REVEL
Benign
0.10
Sift
Benign
0.56
T
Sift4G
Benign
0.12
T
Vest4
0.068
MutPred
0.20
Gain of phosphorylation at A256 (P = 0.0359);
MVP
0.092
ClinPred
0.28
T
GERP RS
5.5
Varity_R
0.059
gMVP
0.23

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1377406977; hg19: chr10-105233239; API