rs377767449

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_003060.4(SLC22A5):c.254_264dupGGCTCGCCACC(p.Ile89GlyfsTer45) variant causes a frameshift change. The variant allele was found at a frequency of 0.000046 in 152,192 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. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. I89I) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000020 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

SLC22A5
NM_003060.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:11

Conservation

PhyloP100: 5.47

Publications

11 publications found

Variant links:

Genes affected

SLC22A5 (HGNC:10969): (solute carrier family 22 member 5) Polyspecific organic cation transporters in the liver, kidney, intestine, and other organs are critical for elimination of many endogenous small organic cations as well as a wide array of drugs and environmental toxins. The encoded protein is a plasma integral membrane protein which functions both as an organic cation transporter and as a sodium-dependent high affinity carnitine transporter. The encoded protein is involved in the active cellular uptake of carnitine. Mutations in this gene are the cause of systemic primary carnitine deficiency (CDSP), an autosomal recessive disorder manifested early in life by hypoketotic hypoglycemia and acute metabolic decompensation, and later in life by skeletal myopathy or cardiomyopathy. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Apr 2015]

SLC22A5 links:

MIR3936HG (HGNC:40538): (MIR3936 host gene)

MIR3936HG links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PP5

Variant 5-132370222-T-TACCGGCTCGCC is Pathogenic according to our data. Variant chr5-132370222-T-TACCGGCTCGCC is described in ClinVar as Pathogenic. ClinVar VariationId is 38790.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC22A5	NM_003060.4 link	c.254_264dupGGCTCGCCACC	p.Ile89GlyfsTer45	frameshift_variant	Exon 1 of 10	ENST00000245407.8	NP_003051.1	O76082-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC22A5	ENST00000245407.8 link	c.254_264dupGGCTCGCCACC	p.Ile89GlyfsTer45	frameshift_variant	Exon 1 of 10	1	NM_003060.4	ENSP00000245407.3		O76082-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000375

AC:

AN:

186880

AF XY:

0.0000292

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000178

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000128

Gnomad OTH exome

AF:

0.000203

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000203

AC:

AN:

1427734

Hom.:

Cov.:

AF XY:

0.0000198

AC XY:

AN XY:

707348

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32630

American (AMR)

AF:

0.000153

AC:

AN:

39094

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25602

East Asian (EAS)

AF:

0.00

AC:

AN:

37468

South Asian (SAS)

AF:

0.00

AC:

AN:

82968

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49176

Middle Eastern (MID)

AF:

0.000175

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.0000173

AC:

AN:

1095994

Other (OTH)

AF:

0.0000508

AC:

AN:

59078

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

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:

0.0000460

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74354

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41454

American (AMR)

AF:

0.000392

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

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

Significance: Pathogenic

Submissions summary: Pathogenic:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Renal carnitine transport defect

Pathogenic:7

Aug 26, 2020

Natera, Inc.

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

May 04, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 16, 2024

Baylor Genetics

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 04, 2016

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: The SLC22A5 c.254_264dup11 (p.Ile89Glyfs) variant results in a premature termination codon, predicted to cause a truncated or absent SLC22A5 protein due to nonsense mediated decay, which are commonly known mechanisms for disease. One in silico tool predicts a damaging outcome for this variant. This variant is absent in 42704 control chromosomes. This variant has been reported in multiple PCD patients both homozygously and heterozygously. Functional study showed this variant caused decreased levels of mature mRNA. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as pathogenic. Taken together, this variant is classified as pathogenic. -

Oct 05, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Ile89Glyfs*45) in the SLC22A5 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in SLC22A5 are known to be pathogenic (PMID: 9916797). This variant is present in population databases (rs757431170, gnomAD 0.02%). This premature translational stop signal has been observed in individual(s) with primary carnitine deficiency (PMID: 11715001, 28841266). ClinVar contains an entry for this variant (Variation ID: 38790). For these reasons, this variant has been classified as Pathogenic. -

May 04, 2022

Mendelics

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 15, 2021

Genome-Nilou Lab

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Pathogenic:2

Dec 27, 2023

GeneDx

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 16652335, 31980526, 11715001, 21922592, 23379544, 28841266, 15714519) -

Jan 01, 2020

CeGaT Center for Human Genetics Tuebingen

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Decreased circulating carnitine concentration

Pathogenic:1

Aug 26, 2020

Natera, Inc.

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Congenital myasthenic syndrome 20

Pathogenic:1

Jan 16, 2024

Ricardo Maselli Laboratory, University of California Davis

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

Congenital Myasthenic Syndrome with episodic apneas. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

5.5

Mutation Taster

=1/199

disease causing (ClinVar)

(source)

Splicing

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over