16-55678038-T-G

Variant names:

• chr16-55678038-T-G
• rs36021
• NM_001172501.3:c.644+5863T>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001172501.3(SLC6A2):​c.644+5863T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: SLC6A2 NM_001172501.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.44
• Publications: 15 publications found

Genes affected

SLC6A2 (HGNC:11048): (solute carrier family 6 member 2) This gene encodes a member of the sodium:neurotransmitter symporter family. This member is a multi-pass membrane protein, which is responsible for reuptake of norepinephrine into presynaptic nerve terminals and is a regulator of norepinephrine homeostasis. Mutations in this gene cause orthostatic intolerance, a syndrome characterized by lightheadedness, fatigue, altered mentation and syncope. Alternatively spliced transcript variants encoding different isoforms have been identified in this gene.[provided by RefSeq, Feb 2010]

SLC6A2 Gene-Disease associations (from GenCC):

• postural orthostatic tachycardia syndrome

  Inheritance: Unknown, AD Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001172501.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC6A2	NM_001172501.3	MANE Select	c.644+5863T>G		intron	N/A	NP_001165972.1
	SLC6A2	NM_001172504.1		c.644+5863T>G		intron	N/A	NP_001165975.1
	SLC6A2	NM_001043.3		c.644+5863T>G		intron	N/A	NP_001034.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC6A2	ENST00000568943.6	TSL:1 MANE Select	c.644+5863T>G		intron	N/A	ENSP00000457473.1
	SLC6A2	ENST00000379906.6	TSL:1	c.644+5863T>G		intron	N/A	ENSP00000369237.2
	SLC6A2	ENST00000219833.13	TSL:5	c.644+5863T>G		intron	N/A	ENSP00000219833.8

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 2935

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.76
DANN	Benign	0.13
PhyloP100		-1.4

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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: rs36021; hg19: chr16-55711950;