rs1555865050

Variant names:

• chr20-46045921-T-C
• rs1555865050
• NM_020708.5:c.1613T>C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_020708.5(SLC12A5):​c.1613T>C​(p.Leu538Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC12A5 NM_020708.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.01

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.903

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC12A5	NM_020708.5	c.1613T>C	p.Leu538Pro	missense_variant	Exon 13 of 26	ENST00000243964.7	NP_065759.1
SLC12A5	NM_001134771.2	c.1682T>C	p.Leu561Pro	missense_variant	Exon 13 of 26		NP_001128243.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC12A5	ENST00000243964.7	c.1613T>C	p.Leu538Pro	missense_variant	Exon 13 of 26	1	NM_020708.5	ENSP00000243964.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Developmental and epileptic encephalopathy, 34 Uncertain:1

Aug 27, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.51	D
BayesDel_noAF	Pathogenic	0.50
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.94	D;.
Eigen	Uncertain	0.61
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Pathogenic	0.51	D
MetaRNN	Pathogenic	0.90	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.2	M;.
PrimateAI	Pathogenic	0.87	D
PROVEAN	Pathogenic	-6.2	D;D
REVEL	Pathogenic	0.93
Sift	Uncertain	0.010	D;D
Sift4G	Pathogenic	0.0010	D;D
Polyphen		0.90	P;B
Vest4		0.97
MutPred		0.61		Loss of stability (P = 0.0025);.;
MVP		1.0
MPC		2.0
ClinPred		0.99	D
GERP RS		4.5
Varity_R		0.98
gMVP		0.98

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

Other links and lift over

dbSNP: rs1555865050; hg19: chr20-44674560;