chr16-29813279-G-A

Variant names:

• chr16-29813279-G-A
• rs199662641
• NM_145239.3:c.225G>A

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_Strong BP6_Very_Strong BP7

The NM_145239.3(PRRT2):​c.225G>A​(p.Pro75Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000224 in 1,613,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00018 (0 hom., cov: 31)
  • Exomes 𝑓: 0.00023 (0 hom.)
• Consequence: PRRT2 NM_145239.3 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7
• Conservation: PhyloP100: -1.32
• Publications: 1 publications found

Genes affected

PRRT2 (HGNC:30500): (proline rich transmembrane protein 2) This gene encodes a transmembrane protein containing a proline-rich domain in its N-terminal half. Studies in mice suggest that it is predominantly expressed in brain and spinal cord in embryonic and postnatal stages. Mutations in this gene are associated with episodic kinesigenic dyskinesia-1. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

ENSG00000280893 (HGNC:):

MVP-DT (HGNC:56029): (MVP divergent transcript)

ACMG classification

Our verdict: Benign. The variant received -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant 16-29813279-G-A is Benign according to our data. Variant chr16-29813279-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 206679.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-1.32 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_145239.3. 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
	PRRT2	NM_145239.3	MANE Select	c.225G>A	p.Pro75Pro	synonymous	Exon 2 of 4	NP_660282.2	Q7Z6L0-1
	PRRT2	NM_001256442.2		c.225G>A	p.Pro75Pro	synonymous	Exon 2 of 3	NP_001243371.1	Q7Z6L0-2
	PRRT2	NM_001438121.1		c.225G>A	p.Pro75Pro	synonymous	Exon 2 of 3	NP_001425050.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRRT2	ENST00000358758.12	TSL:1 MANE Select	c.225G>A	p.Pro75Pro	synonymous	Exon 2 of 4	ENSP00000351608.7	Q7Z6L0-1
	ENSG00000280893	ENST00000609618.2	TSL:5	n.225G>A		non_coding_transcript_exon	Exon 2 of 6	ENSP00000476774.2	A0A0G2JLL6
	PRRT2	ENST00000567659.3	TSL:2	c.225G>A	p.Pro75Pro	synonymous	Exon 2 of 3	ENSP00000456226.1	Q7Z6L0-2

Frequencies

GnomAD3 genomes AF: 0.000184 AC: 28 AN: 152162 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000965

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.000353

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000108 AC: 27 AN: 249930 AF XY: 0.000133

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000579

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000545

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000204

Gnomad OTH exome AF: 0.000164

GnomAD4 exome AF: 0.000229 AC: 334 AN: 1461680 Hom.: 0 Cov.: 33 AF XY: 0.000257 AC XY: 187 AN XY: 727126

African (AFR) AF: 0.000299 AC: 10 AN: 33480

American (AMR) AF: 0.0000447 AC: 2 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

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

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53254

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

European-Non Finnish (NFE) AF: 0.000280 AC: 311 AN: 1111990

Other (OTH) AF: 0.000166 AC: 10 AN: 60386

GnomAD4 genome AF: 0.000184 AC: 28 AN: 152162 Hom.: 0 Cov.: 31 AF XY: 0.0000807 AC XY: 6 AN XY: 74332

African (AFR) AF: 0.0000965 AC: 4 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.000353 AC: 24 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.000165 Hom.: 0

Bravo AF: 0.000159

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.000164

EpiControl AF: 0.000237

ClinVar

ClinVar submissions

Significance: Benign/Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	3	not provided (3)
-	-	2	not specified (2)
-	-	1	Episodic kinesigenic dyskinesia (1)
-	-	1	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	1.7
DANN	Benign	0.79
PhyloP100		-1.3

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: rs199662641; hg19: chr16-29824600;