15-63734745-C-T

Position:

• chr15-63734745-C-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_003922.4(HERC1):​c.2625G>A​(p.Trp875*) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 31)
• Consequence: HERC1 NM_003922.4 stop_gained
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 6.16

Genes affected

HERC1 (HGNC:4867): (HECT and RLD domain containing E3 ubiquitin protein ligase family member 1) This gen encodes a member of the HERC protein family. This protein stimulates guanine nucleotide exchange on ARF1 and Rab proteins. This protein may be involved in membrane transport processes. [provided by RefSeq, Mar 2012]

HERC1 (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 15-63734745-C-T is Pathogenic according to our data. Variant chr15-63734745-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 243010.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HERC1	NM_003922.4	c.2625G>A	p.Trp875*	stop_gained	13/78	ENST00000443617.7	NP_003913.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HERC1	ENST00000443617.7	c.2625G>A	p.Trp875*	stop_gained	13/78	1	NM_003922.4	ENSP00000390158.2
HERC1	ENST00000561400.1	c.931-18272G>A		intron_variant		2		ENSP00000453937.1
HERC1	ENST00000560519.1	n.489G>A		non_coding_transcript_exon_variant	4/4	3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 31

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Macrocephaly, dysmorphic facies, and psychomotor retardation Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Institute of Human Genetics, Heidelberg University	May 22, 2024	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Aug 04, 2016	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.63
CADD	Pathogenic	38
DANN	Uncertain	0.99
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.71
FATHMM_MKL	Uncertain	0.97	D
Vest4		0.86
GERP RS		4.8

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

Publications

LitVar

Other links and lift over

dbSNP: rs879253786; hg19: chr15-64026944;