Genetic Variant SLC23A2:p.Pro411Pro (chr20-4869923-G-A) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP7BS2

The NM_005116.6(SLC23A2):c.1233C>T(p.Pro411Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000317 in 1,326,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P411P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

SLC23A2
NM_005116.6 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.143

Publications

0 publications found

Variant links:

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]

SLC23A2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (REVEL=0.029).

BP7

Synonymous conserved (PhyloP=0.143 with no splicing effect.

BS2

High AC in GnomAdExome4 at 39 AD gene.

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.1233C>T	p.Pro411Pro	synonymous	Exon 12 of 17	NP_005107.4
	SLC23A2	NM_203327.2		c.1233C>T	p.Pro411Pro	synonymous	Exon 12 of 17	NP_976072.1	Q9UGH3-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC23A2	ENST00000338244.6	TSL:1 MANE Select	c.1233C>T	p.Pro411Pro	synonymous	Exon 12 of 17	ENSP00000344322.1	Q9UGH3-1
SLC23A2	ENST00000379333.5	TSL:1	c.1233C>T	p.Pro411Pro	synonymous	Exon 12 of 17	ENSP00000368637.1	Q9UGH3-1
SLC23A2	ENST00000468355.5	TSL:1	n.1599C>T		non_coding_transcript_exon	Exon 12 of 12

Frequencies

GnomAD3 genomes

AF:

0.0000199

AC:

AN:

150810

Hom.:

Cov.:

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:

0.0000959

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000296

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000519

AC:

AN:

192512

AF XY:

0.0000478

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000110

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000332

AC:

AN:

1175656

Hom.:

Cov.:

AF XY:

0.0000307

AC XY:

AN XY:

586256

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26816

American (AMR)

AF:

0.00

AC:

AN:

35418

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20322

East Asian (EAS)

AF:

0.00

AC:

AN:

31800

South Asian (SAS)

AF:

0.00

AC:

AN:

69434

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45666

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4830

European-Non Finnish (NFE)

AF:

0.0000437

AC:

AN:

893308

Other (OTH)

AF:

0.00

AC:

AN:

48062

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000199

AC:

AN:

150810

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73546

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41020

American (AMR)

AF:

0.00

AC:

AN:

15086

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3452

East Asian (EAS)

AF:

0.00

AC:

AN:

5158

South Asian (SAS)

AF:

0.00

AC:

AN:

4752

European-Finnish (FIN)

AF:

0.0000959

AC:

AN:

10430

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000296

AC:

AN:

67638

Other (OTH)

AF:

0.00

AC:

AN:

2052

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000987

Hom.:

Bravo

AF:

0.0000264

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.57

CADD

Benign

7.7

(source)

DANN

Benign

0.85

PhyloP100

0.14

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over