15-63609175-C-T

Position:

chr15-63609175-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2PP2PP3BS1_Supporting

The NM_003922.4(HERC1):c.14492G>A(p.Arg4831His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000164 in 1,461,380 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

HERC1
NM_003922.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91

Variant links:

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), HERC1. . Gene score misZ 4.9558 (greater than the threshold 3.09). Trascript score misZ 5.2706 (greater than threshold 3.09). GenCC has associacion of gene with macrocephaly, dysmorphic facies, and psychomotor retardation, megalencephaly-severe kyphoscoliosis-overgrowth syndrome.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.804

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000164 (24/1461380) while in subpopulation SAS AF= 0.000163 (14/86142). AF 95% confidence interval is 0.000098. There are 0 homozygotes in gnomad4_exome. There are 16 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HERC1	NM_003922.4 linkuse as main transcript	c.14492G>A	p.Arg4831His	missense_variant	78/78	ENST00000443617.7	NP_003913.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HERC1	ENST00000443617.7 linkuse as main transcript	c.14492G>A	p.Arg4831His	missense_variant	78/78	1	NM_003922.4	ENSP00000390158	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000242

AC:

AN:

248062

Hom.:

AF XY:

0.0000297

AC XY:

AN XY:

134728

show subpopulations

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 SAS exome

AF:

0.000164

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000890

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461380

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

726940

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000163

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000810

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 07, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 1448815). This variant has not been reported in the literature in individuals affected with HERC1-related conditions. This variant is present in population databases (rs757210641, gnomAD 0.02%). This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 4831 of the HERC1 protein (p.Arg4831His). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.27

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.015

MetaRNN

Pathogenic

0.80

MetaSVM

Uncertain

-0.28

MutationAssessor

Uncertain

2.1

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-3.4

REVEL

Uncertain

0.45

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0070

Polyphen

1.0

Vest4

0.80

MutPred

0.69

Loss of methylation at R4831 (P = 0.02);

MVP

0.33

MPC

1.2

ClinPred

0.93

GERP RS

5.4

Varity_R

0.50

gMVP

0.58

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over