Variant chr8-85448118-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005181.4(CA3):c.748A>G(p.Ile250Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,613,436 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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: 0.000034 ( 0 hom. )

Consequence

CA3
NM_005181.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.170

Variant links:

Genes affected

CA3 (HGNC:1374): (carbonic anhydrase 3) Carbonic anhydrase III (CAIII) is a member of a multigene family (at least six separate genes are known) that encodes carbonic anhydrase isozymes. These carbonic anhydrases are a class of metalloenzymes that catalyze the reversible hydration of carbon dioxide and are differentially expressed in a number of cell types. The expression of the CA3 gene is strictly tissue specific and present at high levels in skeletal muscle and much lower levels in cardiac and smooth muscle. A proportion of carriers of Duchenne muscle dystrophy have a higher CA3 level than normal. The gene spans 10.3 kb and contains seven exons and six introns. [provided by RefSeq, Oct 2008]

CA3 links:

CA3-AS1 (HGNC:51657): (CA3 antisense RNA 1)

CA3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.010671437).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CA3	NM_005181.4 linkuse as main transcript	c.748A>G	p.Ile250Val	missense_variant	7/7	ENST00000285381.3
CA3-AS1	NR_121630.1 linkuse as main transcript	n.401-5881T>C		intron_variant, non_coding_transcript_variant
CA3-AS1	NR_121631.1 linkuse as main transcript	n.173-5881T>C		intron_variant, non_coding_transcript_variant
CA3-AS1	NR_121632.1 linkuse as main transcript	n.190-5881T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CA3	ENST00000285381.3 linkuse as main transcript	c.748A>G	p.Ile250Val	missense_variant	7/7	1	NM_005181.4	P1
CA3-AS1	ENST00000521761.6 linkuse as main transcript	n.401-5881T>C		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00115

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000719

AC:

AN:

250256

Hom.:

AF XY:

0.0000666

AC XY:

AN XY:

135226

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000118

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000490

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000335

AC:

AN:

1461136

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

726836

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000897

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000277

Gnomad4 SAS exome

AF:

0.0000465

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000964

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000847

Hom.:

ExAC

AF:

0.000107

AC:

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.0000546

EpiControl

AF:

0.0000594

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 submitter

clinical testing

Ambry Genetics

Dec 03, 2021

The c.748A>G (p.I250V) alteration is located in exon 7 (coding exon 7) of the CA3 gene. This alteration results from a A to G substitution at nucleotide position 748, causing the isoleucine (I) at amino acid position 250 to be replaced by a valine (V). 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

0.076

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.57

CADD

Benign

4.4

DANN

Benign

0.90

DEOGEN2

Benign

0.15

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.061

LIST_S2

Benign

0.78

M_CAP

Benign

0.016

MetaRNN

Benign

0.011

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.075

MutationTaster

Benign

1.0

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.88

REVEL

Benign

0.28

Sift

Uncertain

0.029

Sift4G

Uncertain

0.046

Polyphen

0.0

Vest4

0.040

MVP

0.25

MPC

0.13

ClinPred

0.029

GERP RS

-12

Varity_R

0.16

gMVP

0.53

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over