Genetic Variant SLC36A2:c.*71_*76dupTTTTTT (chr5-151316740-C-CAAAAAA) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_181776.3(SLC36A2):c.*71_*76dupTTTTTT variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 0)

Exomes 𝑓: 0.00072 ( 4 hom. )

Consequence

SLC36A2
NM_181776.3 3_prime_UTR

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.985

Publications

1 publications found

Variant links:

Genes affected

SLC36A2 (HGNC:18762): (solute carrier family 36 member 2) This gene encodes a pH-dependent proton-coupled amino acid transporter that belongs to the amino acid auxin permease 1 protein family. The encoded protein primarily transports small amino acids such as glycine, alanine and proline. Mutations in this gene are associated with iminoglycinuria and hyperglycinuria. [provided by RefSeq, Sep 2010]

SLC36A2 Gene-Disease associations (from GenCC):

iminoglycinuria
Inheritance: AR, AD Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, ClinGen, Orphanet
hyperglycinuria
Inheritance: SD, AD, AR Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia

SLC36A2 links:

ENSG00000297368 (HGNC:):

ENSG00000297368 links:

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ACMG classification

Classification was made for transcript

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

BS2

High Homozygotes in GnomAdExome4 at 4 AR,AD,SD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_181776.3. 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
	SLC36A2	NM_181776.3	MANE Select	c.71_76dupTTTTTT		3_prime_UTR	Exon 10 of 10	NP_861441.2	Q495M3-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
SLC36A2	ENST00000335244.9	TSL:1 MANE Select	c.71_76dupTTTTTT	3_prime_UTR	Exon 10 of 10	ENSP00000334223.4	Q495M3-1
SLC36A2	ENST00000518280.5	TSL:1	n.994_999dupTTTTTT	non_coding_transcript_exon	Exon 9 of 9	ENSP00000428453.1	E5RGH8
SLC36A2	ENST00000518617.5	TSL:1	n.1091_1096dupTTTTTT	non_coding_transcript_exon	Exon 10 of 10	ENSP00000430149.1	E5RGH8

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

50726

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000272

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00146

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000338

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000719

AC:

607

AN:

844226

Hom.:

Cov.:

AF XY:

0.000852

AC XY:

365

AN XY:

428282

show subpopulations

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

African (AFR)

AF:

0.000588

AC:

AN:

18694

American (AMR)

AF:

0.00142

AC:

AN:

21126

Ashkenazi Jewish (ASJ)

AF:

0.000393

AC:

AN:

15272

East Asian (EAS)

AF:

0.00360

AC:

AN:

23856

South Asian (SAS)

AF:

0.00232

AC:

126

AN:

54290

European-Finnish (FIN)

AF:

0.000344

AC:

AN:

26182

Middle Eastern (MID)

AF:

0.000778

AC:

AN:

2572

European-Non Finnish (NFE)

AF:

0.000476

AC:

308

AN:

646548

Other (OTH)

AF:

0.000813

AC:

AN:

35686

⚠️ 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.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.272

Heterozygous variant carriers

127

190

254

317

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.0000789

AC:

AN:

50728

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

22338

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

11322

American (AMR)

AF:

0.000272

AC:

AN:

3672

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

1710

East Asian (EAS)

AF:

0.00146

AC:

AN:

1374

South Asian (SAS)

AF:

0.00

AC:

AN:

998

European-Finnish (FIN)

AF:

0.00

AC:

AN:

924

Middle Eastern (MID)

AF:

0.00

AC:

AN:

European-Non Finnish (NFE)

AF:

0.0000338

AC:

AN:

29586

Other (OTH)

AF:

0.00

AC:

AN:

664

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0216541), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

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:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.98

Splicing

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

Publications

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5-151316740-CAAAAAAAAAAAA-CAAAAAAAAAAAAAAAAAA

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