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chr14-24505611-C-T

Variant summary

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

The NM_001836.5(CMA1):​c.649G>A​(p.Val217Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000221 in 1,613,796 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 0.00018 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

CMA1
NM_001836.5 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.67
Variant links:
Genes affected
CMA1 (HGNC:2097): (chymase 1) This gene encodes a chymotryptic serine proteinase that belongs to the peptidase family S1. It is expressed in mast cells and is thought to function in the degradation of the extracellular matrix, the regulation of submucosal gland secretion, and the generation of vasoactive peptides. In the heart and blood vessels, this protein, rather than angiotensin converting enzyme, is largely responsible for converting angiotensin I to the vasoactive peptide angiotensin II. Alternative splicing results in multiple variants. [provided by RefSeq, Apr 2015]

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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=0.095661044).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CMA1NM_001836.5 linkuse as main transcriptc.649G>A p.Val217Ile missense_variant 5/5 ENST00000250378.7
CMA1NM_001308083.2 linkuse as main transcriptc.316G>A p.Val106Ile missense_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CMA1ENST00000250378.7 linkuse as main transcriptc.649G>A p.Val217Ile missense_variant 5/51 NM_001836.5 P1P23946-1
CMA1ENST00000206446.4 linkuse as main transcriptc.316G>A p.Val106Ile missense_variant 4/41 P23946-2
ENST00000555109.1 linkuse as main transcriptn.144-2523C>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000184
AC:
28
AN:
152114
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000247
AC:
62
AN:
250674
Hom.:
0
AF XY:
0.000229
AC XY:
31
AN XY:
135434
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00179
Gnomad EAS exome
AF:
0.000653
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000225
AC:
329
AN:
1461564
Hom.:
0
Cov.:
31
AF XY:
0.000216
AC XY:
157
AN XY:
727074
show subpopulations
Gnomad4 AFR exome
AF:
0.000807
Gnomad4 AMR exome
AF:
0.0000895
Gnomad4 ASJ exome
AF:
0.00138
Gnomad4 EAS exome
AF:
0.000252
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000192
Gnomad4 OTH exome
AF:
0.000414
GnomAD4 genome
AF:
0.000184
AC:
28
AN:
152232
Hom.:
0
Cov.:
31
AF XY:
0.000188
AC XY:
14
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.000289
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000177
Hom.:
1
Bravo
AF:
0.000208
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000231
AC:
28
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000237

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 GeneticsJan 26, 2022The c.649G>A (p.V217I) alteration is located in exon 5 (coding exon 5) of the CMA1 gene. This alteration results from a G to A substitution at nucleotide position 649, causing the valine (V) at amino acid position 217 to be replaced by an isoleucine (I). 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
0.17
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T;.
Eigen
Benign
0.045
Eigen_PC
Benign
0.0022
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.64
T;T
M_CAP
Benign
0.043
D
MetaRNN
Benign
0.096
T;T
MetaSVM
Benign
-0.76
T
MutationAssessor
Uncertain
2.2
M;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.89
N;N
REVEL
Benign
0.20
Sift
Benign
0.044
D;D
Sift4G
Benign
0.077
T;T
Polyphen
0.83
P;.
Vest4
0.15
MVP
0.52
MPC
0.0088
ClinPred
0.038
T
GERP RS
3.6
Varity_R
0.29
gMVP
0.41

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: rs143164371; hg19: chr14-24974817; COSMIC: COSV51625108; API