chr11-20630721-T-G

Variant names:

• chr11-20630721-T-G
• rs281864926
• NM_004211.5:c.1530T>G

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PP3_Strong PP5

The NM_004211.5(SLC6A5):​c.1530T>G​(p.Ser510Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: SLC6A5 NM_004211.5 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 0.270
• Publications: 14 publications found

Genes affected

SLC6A5 (HGNC:11051): (solute carrier family 6 member 5) This gene encodes a sodium- and chloride-dependent glycine neurotransmitter transporter. This integral membrane glycoprotein is responsible for the clearance of extracellular glycine during glycine-mediated neurotransmission. This protein is found in glycinergic axons and maintains a high presynaptic pool of neurotransmitter at glycinergic synapses. Mutations in this gene cause hyperekplexia; a heterogenous neurological disorder characterized by exaggerated startle responses and neonatal apnea. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2016]

SLC6A5 Gene-Disease associations (from GenCC):

• hyperekplexia 3

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• hereditary hyperekplexia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

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

• PP3: MetaRNN computational evidence supports a deleterious effect, 0.942
• PP5: Variant 11-20630721-T-G is Pathogenic according to our data. Variant chr11-20630721-T-G is described in ClinVar as Pathogenic. ClinVar VariationId is 31540.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC6A5	NM_004211.5	c.1530T>G	p.Ser510Arg	missense_variant	Exon 10 of 16	ENST00000525748.6	NP_004202.4
SLC6A5	NM_001318369.2	c.828T>G	p.Ser276Arg	missense_variant	Exon 9 of 15		NP_001305298.1
SLC6A5	XM_017018544.3	c.654T>G	p.Ser218Arg	missense_variant	Exon 6 of 12		XP_016874033.1
SLC6A5	XR_007062528.1	n.908T>G		non_coding_transcript_exon_variant	Exon 7 of 14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC6A5	ENST00000525748.6	c.1530T>G	p.Ser510Arg	missense_variant	Exon 10 of 16	1	NM_004211.5	ENSP00000434364.2
SLC6A5	ENST00000298923.11	n.*827T>G		non_coding_transcript_exon_variant	Exon 9 of 15	1		ENSP00000298923.7
SLC6A5	ENST00000298923.11	n.*827T>G		3_prime_UTR_variant	Exon 9 of 15	1		ENSP00000298923.7
SLC6A5	ENST00000528440.1	n.61T>G		non_coding_transcript_exon_variant	Exon 2 of 8	5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251434 AF XY: 0.00000736

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461880 Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4 AN XY: 727246

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1112004

Other (OTH) AF: 0.0000497 AC: 3 AN: 60394

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000656 Hom.: 0

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Hyperekplexia 3 Pathogenic:2

Oct 04, 2012

GeneReviews

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: curation

- -

Jul 01, 2006

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.24
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.52	D
Eigen	Uncertain	0.36
Eigen_PC	Uncertain	0.28
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.26	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Uncertain	-0.031	T
MutationAssessor	Pathogenic	3.8	H
PhyloP100		0.27
PrimateAI	Pathogenic	0.84	D
PROVEAN	Uncertain	-2.6	D
REVEL	Pathogenic	0.72
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.015	D
Polyphen		0.94	P
Vest4		0.95
MutPred		0.80		Gain of methylation at S510 (P = 0.0523);
MVP		0.90
MPC		0.54
ClinPred		0.98	D
GERP RS		1.9
Varity_R		0.90
gMVP		0.98
Mutation Taster		=7/93	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.26		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.26		Position offset: 0

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

Other links and lift over

dbSNP: rs281864926; hg19: chr11-20652267;