chr20-46724806-A-AGGATGGATGGAT

Variant names:

• chr20-46724806-A-AGGATGGATGGAT
• rs111504264
• NM_030777.4:c.5-204_5-193dupATGGATGGATGG

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS1

The NM_030777.4(SLC2A10):​c.5-204_5-193dupATGGATGGATGG variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000263 in 125,700 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.00026 (0 hom., cov: 26)
• Consequence: SLC2A10 NM_030777.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00
• Publications: 0 publications found

Genes affected

SLC2A10 (HGNC:13444): (solute carrier family 2 member 10) This gene encodes a member of the class III facilitative glucose transporter family. The encoded protein plays a role in regulation of glucose homeostasis. Mutations in this gene have been associated with arterial tortuosity syndrome.[provided by RefSeq, Dec 2009]

SLC2A10 Gene-Disease associations (from GenCC):

• arterial tortuosity syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P
• familial thoracic aortic aneurysm and aortic dissection

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000263 (33/125700) while in subpopulation EAS AF = 0.00472 (17/3602). AF 95% confidence interval is 0.00301. There are 0 homozygotes in GnomAd4. There are 17 alleles in the male GnomAd4 subpopulation. Median coverage is 26. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC2A10	NM_030777.4	c.5-204_5-193dupATGGATGGATGG		intron_variant	Intron 1 of 4	ENST00000359271.4	NP_110404.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC2A10	ENST00000359271.4	c.5-235_5-234insGGATGGATGGAT		intron_variant	Intron 1 of 4	1	NM_030777.4	ENSP00000352216.2
SLC2A10	ENST00000611837.1	n.157-235_157-234insGGATGGATGGAT		intron_variant	Intron 1 of 1	2

Frequencies

GnomAD3 genomes AF: 0.000223 AC: 28 AN: 125574 Hom.: 0 Cov.: 26

Gnomad AFR AF: 0.000218

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00471

Gnomad SAS AF: 0.000302

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000499

Gnomad OTH AF: 0.00

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

GnomAD4 genome AF: 0.000263 AC: 33 AN: 125700 Hom.: 0 Cov.: 26 AF XY: 0.000280 AC XY: 17 AN XY: 60780

African (AFR) AF: 0.000341 AC: 11 AN: 32250

American (AMR) AF: 0.00 AC: 0 AN: 12766

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3218

East Asian (EAS) AF: 0.00472 AC: 17 AN: 3602

South Asian (SAS) AF: 0.000301 AC: 1 AN: 3318

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 7616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 194

European-Non Finnish (NFE) AF: 0.0000499 AC: 3 AN: 60176

Other (OTH) AF: 0.000559 AC: 1 AN: 1790

Alfa AF: 0.00 Hom.: 16

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.0

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs111504264; hg19: chr20-45353445;