rs782272213

Variant names:

• chr17-41725052-C-A
• rs782272213
• NM_177977.3:c.1509G>T

Your query was ambiguous. Multiple possible variants found:

• chr17-41725052-C-A
• chr17-41725052-C-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_177977.3(HAP1):​c.1509G>T​(p.Thr503Thr) variant causes a synonymous 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. Synonymous variant affecting the same amino acid position (i.e. T503T) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: HAP1 NM_177977.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0250
• Publications: 0 publications found

Genes affected

HAP1 (HGNC:4812): (huntingtin associated protein 1) Huntington's disease (HD), a neurodegenerative disorder characterized by loss of striatal neurons, is caused by an expansion of a polyglutamine tract in the HD protein huntingtin. This gene encodes a protein that interacts with huntingtin, with two cytoskeletal proteins (dynactin and pericentriolar autoantigen protein 1), and with a hepatocyte growth factor-regulated tyrosine kinase substrate. The interactions with cytoskeletal proteins and a kinase substrate suggest a role for this protein in vesicular trafficking or organelle transport. Several alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.67).
• BP7: Synonymous conserved (PhyloP=0.025 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HAP1	NM_177977.3	c.1509G>T	p.Thr503Thr	synonymous_variant	Exon 11 of 11	ENST00000347901.9	NP_817084.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HAP1	ENST00000347901.9	c.1509G>T	p.Thr503Thr	synonymous_variant	Exon 11 of 11	1	NM_177977.3	ENSP00000334002.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.67
CADD	Benign	2.0
DANN	Benign	0.61
PhyloP100		0.025
PromoterAI		-0.0060	Neutral

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: rs782272213; hg19: chr17-39881304;