8-85336947-C-T

Position:

chr8-85336947-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001128831.4(CA1):c.352G>A(p.Glu118Lys) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,573,870 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00029 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

CA1
NM_001128831.4 missense, splice_region

Scores

Splicing: ADA: 0.9354

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.52

Variant links:

Genes affected

CA1 (HGNC:1368): (carbonic anhydrase 1) Carbonic anhydrases (CAs) are a large family of zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide. They participate in a variety of biological processes, including respiration, calcification, acid-base balance, bone resorption, and the formation of aqueous humor, cerebrospinal fluid, saliva and gastric acid. They show extensive diversity in tissue distribution and in their subcellular localization. This CA1 gene is closely linked to the CA2 and CA3 genes on chromosome 8. It encodes a cytosolic protein that is found at the highest level in erythrocytes. Allelic variants of this gene have been described in some populations. Alternative splicing and the use of alternative promoters results in multiple transcript variants. [provided by RefSeq, Nov 2016]

CA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.803

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CA1	NM_001128831.4 linkuse as main transcript	c.352G>A	p.Glu118Lys	missense_variant, splice_region_variant	4/8	ENST00000523022.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CA1	ENST00000523022.6 linkuse as main transcript	c.352G>A	p.Glu118Lys	missense_variant, splice_region_variant	4/8	1	NM_001128831.4	P1

Frequencies

GnomAD3 genomes

AF:

0.000289

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000848

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000426

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000231

AC:

AN:

250882

Hom.:

AF XY:

0.000266

AC XY:

AN XY:

135554

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000164

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.000647

Gnomad NFE exome

AF:

0.000309

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000193

AC:

275

AN:

1421634

Hom.:

Cov.:

AF XY:

0.000183

AC XY:

130

AN XY:

709666

show subpopulations

Gnomad4 AFR exome

AF:

0.0000920

Gnomad4 AMR exome

AF:

0.0000448

Gnomad4 ASJ exome

AF:

0.0000386

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.000105

Gnomad4 FIN exome

AF:

0.000824

Gnomad4 NFE exome

AF:

0.000194

Gnomad4 OTH exome

AF:

0.000102

GnomAD4 genome

AF:

0.000289

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74436

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000848

Gnomad4 NFE

AF:

0.000426

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000273

Hom.:

Bravo

AF:

0.0000869

ExAC

AF:

0.000272

AC:

EpiCase

AF:

0.000545

EpiControl

AF:

0.0000593

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

Jul 09, 2021

The c.352G>A (p.E118K) alteration is located in exon 5 (coding exon 3) of the CA1 gene. This alteration results from a G to A substitution at nucleotide position 352, causing the glutamic acid (E) at amino acid position 118 to be replaced by a lysine (K). 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

Pathogenic

0.96

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Pathogenic

0.36

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

D;D;D;D;T;.;T;T;T;.;.

Eigen

Pathogenic

0.93

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

.;.;.;D;D;D;D;.;D;D;D

M_CAP

Uncertain

0.21

MetaRNN

Pathogenic

0.80

D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Pathogenic

0.84

MutationAssessor

Pathogenic

5.6

H;H;H;H;.;.;.;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D;D;D;D

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-3.9

D;D;D;D;D;D;D;D;D;D;D

REVEL

Pathogenic

0.82

Sift

Pathogenic

0.0

D;D;D;D;D;D;D;D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;.;D;.;.;D;.;D

Polyphen

1.0

D;D;D;D;.;.;.;.;.;.;.

Vest4

0.94

MVP

0.95

MPC

0.24

ClinPred

0.96

GERP RS

4.9

Varity_R

0.97

gMVP

0.97

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.94

dbscSNV1_RF

Pathogenic

0.76

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