rs5035

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_000342.4(SLC4A1):​c.113A>T​(p.Asp38Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,872 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D38A) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SLC4A1
NM_000342.4 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.973

Publications

33 publications found
Variant links:
Genes affected
SLC4A1 (HGNC:11027): (solute carrier family 4 member 1 (Diego blood group)) The protein encoded by this gene is part of the anion exchanger (AE) family and is expressed in the erythrocyte plasma membrane, where it functions as a chloride/bicarbonate exchanger involved in carbon dioxide transport from tissues to lungs. The protein comprises two domains that are structurally and functionally distinct. The N-terminal 40kDa domain is located in the cytoplasm and acts as an attachment site for the red cell skeleton by binding ankyrin. The glycosylated C-terminal membrane-associated domain contains 12-14 membrane spanning segments and carries out the stilbene disulphonate-sensitive exchange transport of anions. The cytoplasmic tail at the extreme C-terminus of the membrane domain binds carbonic anhydrase II. The encoded protein associates with the red cell membrane protein glycophorin A and this association promotes the correct folding and translocation of the exchanger. This protein is predominantly dimeric but forms tetramers in the presence of ankyrin. Many mutations in this gene are known in man, and these mutations can lead to two types of disease: destabilization of red cell membrane leading to hereditary spherocytosis, and defective kidney acid secretion leading to distal renal tubular acidosis. Other mutations that do not give rise to disease result in novel blood group antigens, which form the Diego blood group system. Southeast Asian ovalocytosis (SAO, Melanesian ovalocytosis) results from the heterozygous presence of a deletion in the encoded protein and is common in areas where Plasmodium falciparum malaria is endemic. One null mutation in this gene is known, resulting in very severe anemia and nephrocalcinosis. [provided by RefSeq, Jul 2008]
SLC4A1 Gene-Disease associations (from GenCC):
  • autosomal dominant distal renal tubular acidosis
    Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)
  • hereditary spherocytosis type 4
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • renal tubular acidosis, distal, 4, with hemolytic anemia
    Inheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • southeast Asian ovalocytosis
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
  • dehydrated hereditary stomatocytosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary spherocytosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • cryohydrocytosis
    Inheritance: Unknown, AD Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.083806336).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC4A1NM_000342.4 linkc.113A>T p.Asp38Val missense_variant Exon 4 of 20 ENST00000262418.12 NP_000333.1 P02730-1
SLC4A1XM_011525129.3 linkc.113A>T p.Asp38Val missense_variant Exon 4 of 19 XP_011523431.1
SLC4A1XM_011525130.2 linkc.113A>T p.Asp38Val missense_variant Exon 4 of 18 XP_011523432.1
SLC4A1XM_005257593.6 linkc.-83A>T 5_prime_UTR_variant Exon 2 of 18 XP_005257650.1 P02730-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC4A1ENST00000262418.12 linkc.113A>T p.Asp38Val missense_variant Exon 4 of 20 1 NM_000342.4 ENSP00000262418.6 P02730-1
SLC4A1ENST00000399246.3 linkc.113A>T p.Asp38Val missense_variant Exon 4 of 15 5 ENSP00000382190.3 A0A0A0MS98
SLC4A1ENST00000471005.5 linkn.47A>T non_coding_transcript_exon_variant Exon 2 of 4 3
SLC4A1ENST00000498270.1 linkn.394A>T non_coding_transcript_exon_variant Exon 3 of 4 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251436
AF XY:
0.0000147
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461872
Hom.:
0
Cov.:
33
AF XY:
0.00000688
AC XY:
5
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111992
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
2
2
3
4
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
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
0.97
DANN
Benign
0.13
DEOGEN2
Benign
0.15
T;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.012
N
LIST_S2
Benign
0.24
T;T
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.084
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.81
L;.
PhyloP100
-0.97
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.98
N;.
REVEL
Benign
0.12
Sift
Benign
0.22
T;.
Sift4G
Benign
0.29
T;T
Polyphen
0.0
B;.
Vest4
0.17
MutPred
0.24
Loss of loop (P = 0.1242);Loss of loop (P = 0.1242);
MVP
0.25
MPC
0.50
ClinPred
0.039
T
GERP RS
-5.7
Varity_R
0.074
gMVP
0.20
Mutation Taster
=99/1
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: rs5035; hg19: chr17-42338998; API