chr20-46035852-C-A

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_020708.5(SLC12A5):​c.355C>A​(p.Arg119=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0276 in 1,614,082 control chromosomes in the GnomAD database, including 1,189 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. R119R) has been classified as Benign.

Frequency

Genomes: 𝑓 0.029 ( 173 hom., cov: 32)
Exomes 𝑓: 0.027 ( 1016 hom. )

Consequence

SLC12A5
NM_020708.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.61
Variant links:
Genes affected
SLC12A5 (HGNC:13818): (solute carrier family 12 member 5) K-Cl cotransporters are proteins that lower intracellular chloride concentrations below the electrochemical equilibrium potential. The protein encoded by this gene is an integral membrane K-Cl cotransporter that can function in either a net efflux or influx pathway, depending on the chemical concentration gradients of potassium and chloride. The encoded protein can act as a homomultimer, or as a heteromultimer with other K-Cl cotransporters, to maintain chloride homeostasis in neurons. Alternative splicing results in two transcript variants encoding different isoforms. [provided by RefSeq, Sep 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.24).
BP6
Variant 20-46035852-C-A is Benign according to our data. Variant chr20-46035852-C-A is described in ClinVar as [Benign]. Clinvar id is 475656.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.61 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.114 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC12A5NM_020708.5 linkuse as main transcriptc.355C>A p.Arg119= synonymous_variant 4/26 ENST00000243964.7
SLC12A5NM_001134771.2 linkuse as main transcriptc.424C>A p.Arg142= synonymous_variant 4/26

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC12A5ENST00000243964.7 linkuse as main transcriptc.355C>A p.Arg119= synonymous_variant 4/261 NM_020708.5 A1Q9H2X9-2

Frequencies

GnomAD3 genomes
AF:
0.0291
AC:
4428
AN:
152238
Hom.:
170
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00799
Gnomad AMI
AF:
0.0395
Gnomad AMR
AF:
0.118
Gnomad ASJ
AF:
0.0539
Gnomad EAS
AF:
0.0283
Gnomad SAS
AF:
0.0273
Gnomad FIN
AF:
0.0184
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0224
Gnomad OTH
AF:
0.0340
GnomAD3 exomes
AF:
0.0414
AC:
10390
AN:
251198
Hom.:
531
AF XY:
0.0373
AC XY:
5065
AN XY:
135806
show subpopulations
Gnomad AFR exome
AF:
0.00572
Gnomad AMR exome
AF:
0.150
Gnomad ASJ exome
AF:
0.0513
Gnomad EAS exome
AF:
0.0293
Gnomad SAS exome
AF:
0.0302
Gnomad FIN exome
AF:
0.0218
Gnomad NFE exome
AF:
0.0214
Gnomad OTH exome
AF:
0.0390
GnomAD4 exome
AF:
0.0275
AC:
40179
AN:
1461728
Hom.:
1016
Cov.:
32
AF XY:
0.0272
AC XY:
19774
AN XY:
727182
show subpopulations
Gnomad4 AFR exome
AF:
0.00517
Gnomad4 AMR exome
AF:
0.150
Gnomad4 ASJ exome
AF:
0.0529
Gnomad4 EAS exome
AF:
0.0354
Gnomad4 SAS exome
AF:
0.0299
Gnomad4 FIN exome
AF:
0.0193
Gnomad4 NFE exome
AF:
0.0225
Gnomad4 OTH exome
AF:
0.0298
GnomAD4 genome
AF:
0.0291
AC:
4433
AN:
152354
Hom.:
173
Cov.:
32
AF XY:
0.0309
AC XY:
2301
AN XY:
74510
show subpopulations
Gnomad4 AFR
AF:
0.00796
Gnomad4 AMR
AF:
0.118
Gnomad4 ASJ
AF:
0.0539
Gnomad4 EAS
AF:
0.0281
Gnomad4 SAS
AF:
0.0273
Gnomad4 FIN
AF:
0.0184
Gnomad4 NFE
AF:
0.0223
Gnomad4 OTH
AF:
0.0346
Alfa
AF:
0.0233
Hom.:
62
Bravo
AF:
0.0349
Asia WGS
AF:
0.0270
AC:
95
AN:
3478
EpiCase
AF:
0.0231
EpiControl
AF:
0.0244

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxNov 12, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanJul 15, 2024This variant is classified as Benign based on local population frequency. This variant was detected in 23% of patients studied in a panel designed for Epileptic and Developmental Encephalopathy and Progressive Myoclonus Epilepsy. Number of patients: 21. Only high quality variants are reported. -
Developmental and epileptic encephalopathy, 34 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.24
CADD
Benign
9.7
DANN
Benign
0.65

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: rs3848724; hg19: chr20-44664491; API