12-51460017-G-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_001039960.3(SLC4A8):ā€‹c.922G>Cā€‹(p.Val308Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000048 ( 0 hom. )

Consequence

SLC4A8
NM_001039960.3 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.63
Variant links:
Genes affected
SLC4A8 (HGNC:11034): (solute carrier family 4 member 8) The protein encoded by this gene is a membrane protein that functions to transport sodium and bicarbonate ions across the cell membrane. The encoded protein is important for pH regulation in neurons. The activity of this protein can be inhibited by 4,4'-Di-isothiocyanatostilbene-2,2'-disulfonic acid (DIDS). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SLC4A8. . Gene score misZ 4.0551 (greater than the threshold 3.09). Trascript score misZ 4.6916 (greater than threshold 3.09). GenCC has associacion of gene with schizophrenia.
BP4
Computational evidence support a benign effect (MetaRNN=0.11902681).
BS2
High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC4A8NM_001039960.3 linkuse as main transcriptc.922G>C p.Val308Leu missense_variant 8/25 ENST00000453097.7 NP_001035049.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC4A8ENST00000453097.7 linkuse as main transcriptc.922G>C p.Val308Leu missense_variant 8/251 NM_001039960.3 ENSP00000405812 P1Q2Y0W8-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152192
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
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
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251446
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000326
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461036
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
726892
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000247
AC:
3

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 02, 2022The c.922G>C (p.V308L) alteration is located in exon 8 (coding exon 8) of the SLC4A8 gene. This alteration results from a G to C substitution at nucleotide position 922, causing the valine (V) at amino acid position 308 to be replaced by a leucine (L). 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
0.13
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.36
.;.;T;.
Eigen
Benign
-0.12
Eigen_PC
Benign
0.094
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.92
D;D;D;D
M_CAP
Benign
0.0038
T
MetaRNN
Benign
0.12
T;T;T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
0.89
.;.;L;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-1.6
N;.;N;N
REVEL
Benign
0.16
Sift
Benign
0.24
T;.;T;T
Sift4G
Benign
0.31
T;T;T;T
Polyphen
0.0
.;.;B;.
Vest4
0.11
MutPred
0.82
.;.;Loss of sheet (P = 0.0817);.;
MVP
0.043
MPC
0.67
ClinPred
0.24
T
GERP RS
4.7
Varity_R
0.65
gMVP
0.69

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: rs770189059; hg19: chr12-51853801; COSMIC: COSV105197192; COSMIC: COSV105197192; API