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GeneBe

7-151066599-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_003040.4(SLC4A2):c.661C>T(p.Arg221Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000123 in 1,548,050 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: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

SLC4A2
NM_003040.4 missense

Scores

10
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.60
Variant links:
Genes affected
SLC4A2 (HGNC:11028): (solute carrier family 4 member 2) This gene encodes a member of the anion exchanger family of membrane transport proteins. The encoded protein regulates intracellular pH, biliary bicarbonate secretion, and chloride uptake. Reduced expression of this gene may be associated with primary biliary cirrhosis (PBC) in human patients, while differential expression of this gene may be associated with malignant hepatocellular carcinoma, colon and gastric cancers. [provided by RefSeq, Nov 2016]

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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;
PP2
Missense variant where missense usually causes diseases, SLC4A2

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC4A2NM_003040.4 linkuse as main transcriptc.661C>T p.Arg221Cys missense_variant 6/23 ENST00000413384.7
SLC4A2NM_001199692.3 linkuse as main transcriptc.661C>T p.Arg221Cys missense_variant 6/23
SLC4A2NM_001199693.1 linkuse as main transcriptc.634C>T p.Arg212Cys missense_variant 5/22
SLC4A2NM_001199694.2 linkuse as main transcriptc.619C>T p.Arg207Cys missense_variant 5/22

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC4A2ENST00000413384.7 linkuse as main transcriptc.661C>T p.Arg221Cys missense_variant 6/231 NM_003040.4 P1P04920-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
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:
0.000193
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:
0.0000201
AC:
3
AN:
148988
Hom.:
0
AF XY:
0.0000126
AC XY:
1
AN XY:
79530
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000122
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.0000129
AC:
18
AN:
1395714
Hom.:
0
Cov.:
33
AF XY:
0.00000581
AC XY:
4
AN XY:
688400
show subpopulations
Gnomad4 AFR exome
AF:
0.0000317
Gnomad4 AMR exome
AF:
0.000197
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000556
Gnomad4 OTH exome
AF:
0.0000519
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152336
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000132
AC:
1

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 GeneticsJun 24, 2022The c.661C>T (p.R221C) alteration is located in exon 6 (coding exon 5) of the SLC4A2 gene. This alteration results from a C to T substitution at nucleotide position 661, causing the arginine (R) at amino acid position 221 to be replaced by a cysteine (C). 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
-0.12
T
BayesDel_noAF
Benign
-0.17
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Benign
0.25
T;T;.;.
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Benign
0.72
D
M_CAP
Uncertain
0.22
D
MetaRNN
Uncertain
0.44
T;T;T;T
MetaSVM
Uncertain
0.045
D
MutationAssessor
Benign
1.2
L;L;.;.
MutationTaster
Benign
0.96
D;D;D;D;D
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-1.4
N;N;N;N
REVEL
Uncertain
0.35
Sift
Uncertain
0.0040
D;D;D;D
Sift4G
Uncertain
0.0050
D;D;D;D
Polyphen
1.0
D;D;.;D
Vest4
0.48
MutPred
0.36
Loss of MoRF binding (P = 0.0151);Loss of MoRF binding (P = 0.0151);.;.;
MVP
0.59
MPC
1.1
ClinPred
0.32
T
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.10
gMVP
0.51

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs760204657; hg19: chr7-150763686; API