NM_018845.4:c.509T>G

Variant names:

• chr1-155138043-T-G
• rs980740170
• NM_018845.4:c.509T>G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_018845.4(SLC50A1):​c.509T>G​(p.Leu170Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. 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)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC50A1 NM_018845.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.34
• Publications: 0 publications found

Genes affected

SLC50A1 (HGNC:30657): (solute carrier family 50 member 1) Enables glucoside transmembrane transporter activity. Predicted to be involved in carbohydrate transport. Located in Golgi apparatus and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.972

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018845.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC50A1	NM_018845.4	MANE Select	c.509T>G	p.Leu170Arg	missense	Exon 5 of 6	NP_061333.2	Q9BRV3-1
	SLC50A1	NM_001287587.2		c.488T>G	p.Leu163Arg	missense	Exon 5 of 6	NP_001274516.1
	SLC50A1	NM_001287591.2		c.395T>G	p.Leu132Arg	missense	Exon 5 of 6	NP_001274520.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC50A1	ENST00000368404.9	TSL:1 MANE Select	c.509T>G	p.Leu170Arg	missense	Exon 5 of 6	ENSP00000357389.4	Q9BRV3-1
	SLC50A1	ENST00000303343.12	TSL:1	c.347T>G	p.Leu116Arg	missense	Exon 4 of 5	ENSP00000306146.8	Q9BRV3-3
	SLC50A1	ENST00000368401.6	TSL:1	c.344T>G	p.Leu115Arg	missense	Exon 4 of 5	ENSP00000357386.5	Q9BRV3-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461890 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727248

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

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: 39700

South Asian (SAS) AF: 0.00 AC: 0 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: 8.99e-7 AC: 1 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Pathogenic	0.47	D
BayesDel_noAF	Pathogenic	0.43
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	T
Eigen	Pathogenic	0.78
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.025	T
MetaRNN	Pathogenic	0.97	D
MetaSVM	Uncertain	0.26	D
MutationAssessor	Pathogenic	3.2	M
PhyloP100		6.3
PrimateAI	Uncertain	0.48	T
PROVEAN	Pathogenic	-5.2	D
REVEL	Uncertain	0.62
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.79		Loss of helix (P = 0.0138)
MVP		0.26
MPC		1.6
ClinPred		0.99	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.82
gMVP		0.88
Mutation Taster		=39/61	disease causing

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

Other links and lift over

dbSNP: rs980740170; hg19: chr1-155110519;