rs28383480

Variant names:

• chr5-132393676-G-A
• rs28383480
• NM_003060.4:c.1451G>A

Your query was ambiguous. Multiple possible variants found:

• chr5-132393676-G-A
• chr5-132393676-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_003060.4(SLC22A5):​c.1451G>A​(p.Gly484Asp) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G484V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC22A5 NM_003060.4 missense, splice_region
• Scores: Splicing: ADA: 0.9993
• Clinical Significance: Uncertain significance criteria provided, single submitter U:3
• Conservation: PhyloP100: 9.60
• Publications: 10 publications found

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 Gene-Disease associations (from GenCC):

• systemic primary carnitine deficiency disease

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, Orphanet, G2P, ClinGen
• short QT syndrome

  Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 13 uncertain in NM_003060.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003060.4. 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
	SLC22A5	NM_003060.4	MANE Select	c.1451G>A	p.Gly484Asp	missense splice_region	Exon 9 of 10	NP_003051.1	O76082-1
	SLC22A5	NM_001308122.2		c.1523G>A	p.Gly508Asp	missense splice_region	Exon 10 of 11	NP_001295051.1	O76082-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC22A5	ENST00000245407.8	TSL:1 MANE Select	c.1451G>A	p.Gly484Asp	missense splice_region	Exon 9 of 10	ENSP00000245407.3	O76082-1
	SLC22A5	ENST00000435065.7	TSL:1	c.1523G>A	p.Gly508Asp	missense splice_region	Exon 10 of 11	ENSP00000402760.2	O76082-3
	SLC22A5	ENST00000448810.6	TSL:1	n.*303G>A		splice_region non_coding_transcript_exon	Exon 9 of 10	ENSP00000401860.2	H7C1R8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 1

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	2	-	Renal carnitine transport defect (2)
-	1	-	Decreased circulating carnitine concentration (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.71
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.63	D
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.029	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Benign	-0.51	T
MutationAssessor	Benign	2.0	M
PhyloP100		9.6
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-5.2	D
REVEL	Uncertain	0.51
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.0060	D
Polyphen		0.98	D
Vest4		0.88
MutPred		0.71		Loss of methylation at R488 (P = 0.0638)
MVP		0.86
MPC		0.45
ClinPred		0.99	D
GERP RS		5.3
Varity_R		0.82
gMVP		0.94
Mutation Taster		=8/92	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.95
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

Other links and lift over

dbSNP: rs28383480; hg19: chr5-131729368;