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GeneBe

1-8945906-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001215.4(CA6):c.20T>C(p.Leu7Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000806 in 1,613,692 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

CA6
NM_001215.4 missense

Scores

1
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.90
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CA6NM_001215.4 linkuse as main transcriptc.20T>C p.Leu7Pro missense_variant 1/8 ENST00000377443.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CA6ENST00000377443.7 linkuse as main transcriptc.20T>C p.Leu7Pro missense_variant 1/81 NM_001215.4 P2P23280-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000517
AC:
13
AN:
251432
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000652
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461412
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
727042
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000277
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152280
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000330
AC:
4

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 GeneticsDec 12, 2023The c.20T>C (p.L7P) alteration is located in exon 1 (coding exon 1) of the CA6 gene. This alteration results from a T to C substitution at nucleotide position 20, causing the leucine (L) at amino acid position 7 to be replaced by a proline (P). 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
Uncertain
0.024
T
BayesDel_noAF
Pathogenic
0.16
Cadd
Benign
23
Dann
Uncertain
1.0
Eigen
Uncertain
0.31
Eigen_PC
Benign
0.21
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.57
T;T;T;T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Uncertain
0.68
D;D;D;D;D
MetaSVM
Benign
-0.46
T
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.37
T
PROVEAN
Uncertain
-2.6
D;D;D;D;N
REVEL
Uncertain
0.56
Sift
Benign
0.11
T;D;T;T;D
Sift4G
Uncertain
0.027
D;D;T;T;D
Polyphen
1.0
.;.;D;.;.
Vest4
0.81, 0.82, 0.82, 0.69
MutPred
0.77
Gain of sheet (P = 0.0043);Gain of sheet (P = 0.0043);Gain of sheet (P = 0.0043);Gain of sheet (P = 0.0043);Gain of sheet (P = 0.0043);
MVP
0.89
MPC
0.79
ClinPred
0.28
T
GERP RS
5.1
Varity_R
0.73
gMVP
0.84

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: rs763221471; hg19: chr1-9005965; API