rs1776948

Variant names:

• chr20-4950467-G-A
• rs1776948
• NM_005116.6:c.-154-17751C>T

Your query was ambiguous. Multiple possible variants found:

• chr20-4950467-G-A
• chr20-4950467-G-C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005116.6(SLC23A2):​c.-154-17751C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.563 in 151,922 control chromosomes in the GnomAD database, including 25,468 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.56 (25468 hom., cov: 31)
• Consequence: SLC23A2 NM_005116.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.59
• Publications: 8 publications found

Genes affected

SLC23A2 (HGNC:10973): (solute carrier family 23 member 2) The absorption of vitamin C into the body and its distribution to organs requires two sodium-dependent vitamin C transporters. This gene encodes one of the two required transporters and the encoded protein accounts for tissue-specific uptake of vitamin C. Previously, this gene had an official symbol of SLC23A1. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.745 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005116.6. 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
	SLC23A2	NM_005116.6	MANE Select	c.-154-17751C>T		intron	N/A	NP_005107.4
	SLC23A2	NM_203327.2		c.-154-17751C>T		intron	N/A	NP_976072.1	Q9UGH3-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC23A2	ENST00000338244.6	TSL:1 MANE Select	c.-154-17751C>T		intron	N/A	ENSP00000344322.1	Q9UGH3-1
	SLC23A2	ENST00000379333.5	TSL:1	c.-154-17751C>T		intron	N/A	ENSP00000368637.1	Q9UGH3-1
	SLC23A2	ENST00000468355.5	TSL:1	n.213-17751C>T		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.563 AC: 85405 AN: 151802 Hom.: 25430 Cov.: 31

Gnomad AFR AF: 0.752

Gnomad AMI AF: 0.330

Gnomad AMR AF: 0.546

Gnomad ASJ AF: 0.412

Gnomad EAS AF: 0.665

Gnomad SAS AF: 0.435

Gnomad FIN AF: 0.596

Gnomad MID AF: 0.452

Gnomad NFE AF: 0.460

Gnomad OTH AF: 0.526

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.563 AC: 85503 AN: 151922 Hom.: 25468 Cov.: 31 AF XY: 0.568 AC XY: 42151 AN XY: 74244

African (AFR) AF: 0.752 AC: 31159 AN: 41446

American (AMR) AF: 0.547 AC: 8350 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.412 AC: 1429 AN: 3466

East Asian (EAS) AF: 0.664 AC: 3411 AN: 5136

South Asian (SAS) AF: 0.434 AC: 2089 AN: 4810

European-Finnish (FIN) AF: 0.596 AC: 6281 AN: 10546

Middle Eastern (MID) AF: 0.452 AC: 133 AN: 294

European-Non Finnish (NFE) AF: 0.460 AC: 31248 AN: 67938

Other (OTH) AF: 0.524 AC: 1103 AN: 2104

Alfa AF: 0.501 Hom.: 9018

Bravo AF: 0.568

Asia WGS AF: 0.573 AC: 1992 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	0.014
DANN	Benign	0.40
PhyloP100		-2.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Mutation Taster		=100/0	polymorphism (auto)

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: rs1776948; hg19: chr20-4931113;