6-31870936-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_025257.3(SLC44A4):​c.813C>A​(p.Tyr271*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,456 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. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SLC44A4
NM_025257.3 stop_gained

Scores

2
1
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.18
Variant links:
Genes affected
SLC44A4 (HGNC:13941): (solute carrier family 44 member 4) The protein encoded by this gene may be a sodium-dependent transmembrane transport protein involved in the uptake of choline by cholinergic neurons. Defects in this gene can cause sialidosis, a lysosomal storage disease. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC44A4NM_025257.3 linkuse as main transcriptc.813C>A p.Tyr271* stop_gained 10/21 ENST00000229729.11 NP_079533.2 Q53GD3-1A0A140VJH4
SLC44A4NM_001178044.2 linkuse as main transcriptc.687C>A p.Tyr229* stop_gained 9/20 NP_001171515.1 Q53GD3-4
SLC44A4NM_001178045.2 linkuse as main transcriptc.585C>A p.Tyr195* stop_gained 10/21 NP_001171516.1 Q53GD3-3A0A1U9X8K7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC44A4ENST00000229729.11 linkuse as main transcriptc.813C>A p.Tyr271* stop_gained 10/211 NM_025257.3 ENSP00000229729.6 Q53GD3-1
SLC44A4ENST00000414427.1 linkuse as main transcriptc.686+378C>A intron_variant 5 ENSP00000398901.1 H0Y5I3

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151872
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000407
AC:
1
AN:
245914
Hom.:
0
AF XY:
0.00000746
AC XY:
1
AN XY:
134016
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000906
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460584
Hom.:
0
Cov.:
63
AF XY:
0.00000275
AC XY:
2
AN XY:
726608
show subpopulations
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
AF:
0.00000658
AC:
1
AN:
151872
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74164
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.57
CADD
Pathogenic
27
DANN
Uncertain
0.99
Eigen
Benign
0.019
Eigen_PC
Benign
-0.24
FATHMM_MKL
Benign
0.66
D
Vest4
0.37
GERP RS
-2.5

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: rs494620; hg19: chr6-31838713; API