rs121909389

Variant names:

• chr20-3230587-C-A
• NM_001174089.2:c.1343G>T

Your query was ambiguous. Multiple possible variants found:

• chr20-3230587-C-A
• chr20-3230587-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2 PM5 PP3_Strong

The NM_001174089.2(SLC4A11):​c.1343G>T​(p.Gly448Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,594 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. G448D) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC4A11 NM_001174089.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.78

Genes affected

SLC4A11 (HGNC:16438): (solute carrier family 4 member 11) This gene encodes a voltage-regulated, electrogenic sodium-coupled borate cotransporter that is essential for borate homeostasis, cell growth and cell proliferation. Mutations in this gene have been associated with a number of endothelial corneal dystrophies including recessive corneal endothelial dystrophy 2, corneal dystrophy and perceptive deafness, and Fuchs endothelial corneal dystrophy. Multiple transcript variants encoding different isoforms have been described. [provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr20-3230587-C-T is described in Lovd as [Pathogenic].
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.973

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC4A11	NM_001174089.2	c.1343G>T	p.Gly448Val	missense_variant	Exon 12 of 20	ENST00000642402.1	NP_001167560.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC4A11	ENST00000642402.1	c.1343G>T	p.Gly448Val	missense_variant	Exon 12 of 20		NM_001174089.2	ENSP00000493503.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461594 Hom.: 0 Cov.: 39 AF XY: 0.00 AC XY: 0 AN XY: 727092

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.43
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D;.;.;.;.;.;.
Eigen	Pathogenic	0.78
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D;D;.;D;D;D;D
M_CAP	Pathogenic	0.36	D
MetaRNN	Pathogenic	0.97	D;D;D;D;D;D;D
MetaSVM	Pathogenic	0.83	D
MutationAssessor	Pathogenic	3.8	H;.;.;.;.;.;.
PrimateAI	Uncertain	0.66	T
PROVEAN	Pathogenic	-8.0	D;D;.;.;.;.;D
REVEL	Pathogenic	0.92
Sift	Pathogenic	0.0	D;D;.;.;.;.;D
Sift4G	Uncertain	0.0030	D;D;.;.;.;.;D
Polyphen		1.0	D;.;.;.;.;.;.
Vest4		0.97
MutPred		0.88		Gain of glycosylation at T463 (P = 0.3272);.;.;.;.;.;.;
MVP		0.94
MPC		1.1
ClinPred		1.0	D
GERP RS		4.9
Varity_R		0.96
gMVP		0.99

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-3211233;