rs200944017

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_003759.4(SLC4A4):​c.70T>A​(p.Phe24Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000113 in 1,614,110 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F24C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

SLC4A4
NM_003759.4 missense

Scores

15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.01

Publications

0 publications found
Variant links:
Genes affected
SLC4A4 (HGNC:11030): (solute carrier family 4 member 4) This gene encodes a sodium bicarbonate cotransporter (NBC) involved in the regulation of bicarbonate secretion and absorption and intracellular pH. Mutations in this gene are associated with proximal renal tubular acidosis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]
SLC4A4 Gene-Disease associations (from GenCC):
  • autosomal recessive proximal renal tubular acidosis
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, G2P, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.028738767).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000105 (16/152218) while in subpopulation NFE AF = 0.000191 (13/67994). AF 95% confidence interval is 0.000112. There are 0 homozygotes in GnomAd4. There are 7 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003759.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC4A4
NM_003759.4
MANE Plus Clinical
c.70T>Ap.Phe24Ile
missense
Exon 1 of 23NP_003750.1Q9Y6R1-2
SLC4A4
NM_001098484.3
MANE Select
c.254-52T>A
intron
N/ANP_001091954.1Q9Y6R1-1
SLC4A4
NM_001440629.1
c.347-52T>A
intron
N/ANP_001427558.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLC4A4
ENST00000340595.4
TSL:1 MANE Plus Clinical
c.70T>Ap.Phe24Ile
missense
Exon 1 of 23ENSP00000344272.3Q9Y6R1-2
SLC4A4
ENST00000512686.5
TSL:1
c.70T>Ap.Phe24Ile
missense
Exon 1 of 11ENSP00000422400.1Q9Y6R1-3
SLC4A4
ENST00000264485.11
TSL:1 MANE Select
c.254-52T>A
intron
N/AENSP00000264485.5Q9Y6R1-1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152100
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000123
AC:
31
AN:
251472
AF XY:
0.000140
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.000198
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.000193
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000114
AC:
167
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.000116
AC XY:
84
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.000134
AC:
6
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.000153
AC:
4
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53420
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.000126
AC:
140
AN:
1112010
Other (OTH)
AF:
0.000199
AC:
12
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
12
24
35
47
59
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000105
AC:
16
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000940
AC XY:
7
AN XY:
74430
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41540
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
67994
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000158
Hom.:
0
Bravo
AF:
0.000106
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Autosomal recessive proximal renal tubular acidosis (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
10
DANN
Benign
0.87
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.32
FATHMM_MKL
Benign
0.57
D
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.029
T
MetaSVM
Benign
-0.92
T
PhyloP100
1.0
PROVEAN
Benign
0.43
N
REVEL
Benign
0.11
Sift
Benign
0.64
T
Sift4G
Benign
0.45
T
Polyphen
0.0
B
Vest4
0.13
MVP
0.093
ClinPred
0.0085
T
GERP RS
4.2
PromoterAI
-0.041
Neutral
Mutation Taster
=96/4
polymorphism

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

Other links and lift over

dbSNP: rs200944017; hg19: chr4-72205035; API