Variant 1-8974627-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_001215.4(CA6):c.850A>G(p.Thr284Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000605 in 1,602,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

CA6
NM_001215.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.813

Variant links:

Genes affected

CA6 (HGNC:1380): (carbonic anhydrase 6) The protein encoded by this gene is one of several isozymes of carbonic anhydrase. This protein is found only in salivary glands and saliva and protein may play a role in the reversible hydratation of carbon dioxide though its function in saliva is unknown. [provided by RefSeq, Jul 2008]

CA6 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=0.009186864).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CA6	NM_001215.4 linkuse as main transcript	c.850A>G	p.Thr284Ala	missense_variant	8/8	ENST00000377443.7
CA6	NM_001270501.2 linkuse as main transcript	c.670A>G	p.Thr224Ala	missense_variant	7/7
CA6	NM_001270502.2 linkuse as main transcript	c.466A>G	p.Thr156Ala	missense_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CA6	ENST00000377443.7 linkuse as main transcript	c.850A>G	p.Thr284Ala	missense_variant	8/8	1	NM_001215.4	P2	P23280-1
CA6	ENST00000377442.3 linkuse as main transcript	c.670A>G	p.Thr224Ala	missense_variant	7/7	1			P23280-3
CA6	ENST00000476083.1 linkuse as main transcript	n.540A>G		non_coding_transcript_exon_variant	6/6	3

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000578

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000150

AC:

AN:

247292

Hom.:

AF XY:

0.000135

AC XY:

AN XY:

133750

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000901

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00175

Gnomad SAS exome

AF:

0.0000668

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000572

AC:

AN:

1449918

Hom.:

Cov.:

AF XY:

0.0000540

AC XY:

AN XY:

721786

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000114

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00162

Gnomad4 SAS exome

AF:

0.0000234

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000200

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74294

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000422

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000906

AC:

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 21, 2022

The c.850A>G (p.T284A) alteration is located in exon 8 (coding exon 8) of the CA6 gene. This alteration results from a A to G substitution at nucleotide position 850, causing the threonine (T) at amino acid position 284 to be replaced by an alanine (A). 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

0.084

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.61

Cadd

Benign

0.023

Dann

Benign

0.37

DEOGEN2

Benign

0.019

T;.

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.21

T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.0092

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.0

N;.

MutationTaster

Benign

1.0

N;N

PROVEAN

Benign

-0.55

N;N

REVEL

Benign

0.031

Sift

Benign

0.59

T;T

Sift4G

Benign

0.40

T;T

Polyphen

0.028

B;.

Vest4

0.023

MutPred

0.33

Gain of sheet (P = 0.0125);.;

MVP

0.46

ClinPred

0.0038

GERP RS

-4.5

Varity_R

0.026

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