chr8-85464102-C-A

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PVS1_StrongPM2PP3PP5_Moderate

The NM_000067.3(CA2):​c.21C>A​(p.Tyr7Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CA2
NM_000067.3 stop_gained

Scores

2
3
2

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 1.62
Variant links:
Genes affected
CA2 (HGNC:1373): (carbonic anhydrase 2) The protein encoded by this gene is one of several isozymes of carbonic anhydrase, which catalyzes reversible hydration of carbon dioxide. Defects in this enzyme are associated with osteopetrosis and renal tubular acidosis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2014]
CA3-AS1 (HGNC:51657): (CA3 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.973 CDS is truncated, and there are 3 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant 8-85464102-C-A is Pathogenic according to our data. Variant chr8-85464102-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 522744.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CA2NM_000067.3 linkuse as main transcriptc.21C>A p.Tyr7Ter stop_gained 1/7 ENST00000285379.10 NP_000058.1
CA3-AS1NR_121630.1 linkuse as main transcriptn.334+480G>T intron_variant, non_coding_transcript_variant
CA2NM_001293675.2 linkuse as main transcriptc.-164C>A 5_prime_UTR_variant 1/6 NP_001280604.1
CA3-AS1NR_121631.1 linkuse as main transcriptn.106+126G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CA2ENST00000285379.10 linkuse as main transcriptc.21C>A p.Tyr7Ter stop_gained 1/71 NM_000067.3 ENSP00000285379 P1
CA3-AS1ENST00000521761.6 linkuse as main transcriptn.334+480G>T intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1395240
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
689284
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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
Cov.:
33

ClinVar

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

Submissions by phenotype

Osteopetrosis with renal tubular acidosis Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesDec 03, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.53
CADD
Pathogenic
52
DANN
Uncertain
0.99
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Benign
0.69
D
MutationTaster
Benign
1.0
A
Vest4
0.69
GERP RS
2.4

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.65
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.65
Position offset: -4

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: rs1554709677; hg19: chr8-86376331; COSMIC: COSV53407343; COSMIC: COSV53407343; API