3-27397743-T-C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001321103.2(SLC4A7):​c.2644A>G​(p.Thr882Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,610,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SLC4A7
NM_001321103.2 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.861

Publications

0 publications found
Variant links:
Genes affected
SLC4A7 (HGNC:11033): (solute carrier family 4 member 7) This locus encodes a sodium bicarbonate cotransporter. The encoded transmembrane protein appears to transport sodium and bicarbonate ions in a 1:1 ratio, and is thus considered an electroneutral cotransporter. The encoded protein likely plays a critical role in regulation of intracellular pH involved in visual and auditory sensory transmission. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Apr 2012]
SLC4A7 Gene-Disease associations (from GenCC):
  • cone-rod dystrophy
    Inheritance: AR Classification: LIMITED Submitted by: Franklin by Genoox

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.043019474).
BP6
Variant 3-27397743-T-C is Benign according to our data. Variant chr3-27397743-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3165132.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC4A7NM_001321103.2 linkc.2644A>G p.Thr882Ala missense_variant Exon 18 of 26 ENST00000454389.6 NP_001308032.1 Q9Y6M7-7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC4A7ENST00000454389.6 linkc.2644A>G p.Thr882Ala missense_variant Exon 18 of 26 1 NM_001321103.2 ENSP00000390394.1 Q9Y6M7-7

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152204
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000282
AC:
7
AN:
248642
AF XY:
0.0000372
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000266
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1458006
Hom.:
0
Cov.:
28
AF XY:
0.0000179
AC XY:
13
AN XY:
725356
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33374
American (AMR)
AF:
0.0000451
AC:
2
AN:
44354
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26096
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39504
South Asian (SAS)
AF:
0.0000937
AC:
8
AN:
85418
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53336
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5752
European-Non Finnish (NFE)
AF:
0.00000811
AC:
9
AN:
1109928
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60244
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152204
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74372
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41428
American (AMR)
AF:
0.0000654
AC:
1
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Jul 06, 2022
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
15
DANN
Benign
0.96
DEOGEN2
Benign
0.15
.;.;T;.;.;.;.;.;.;.;T
Eigen
Benign
-0.96
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.68
T;T;T;T;T;T;T;T;T;T;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.043
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
-0.81
.;.;N;.;.;.;.;.;.;.;.
PhyloP100
-0.86
PrimateAI
Benign
0.34
T
PROVEAN
Benign
0.20
.;N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.20
Sift
Benign
0.15
.;T;T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.54
T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.0
.;.;B;B;.;.;.;.;.;B;.
Vest4
0.18
MutPred
0.45
.;.;Gain of glycosylation at Y876 (P = 0.055);.;.;.;.;.;.;.;.;
MVP
0.082
MPC
0.29
ClinPred
0.031
T
GERP RS
2.3
Varity_R
0.021
gMVP
0.49
Mutation Taster
=92/8
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs766431279; hg19: chr3-27439234; API