rs1177737621

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_004821.3(HAND1):​c.257A>T​(p.Glu86Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000659 in 151,658 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

HAND1
NM_004821.3 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.546

Publications

0 publications found
Variant links:
Genes affected
HAND1 (HGNC:4807): (heart and neural crest derivatives expressed 1) The protein encoded by this gene belongs to the basic helix-loop-helix family of transcription factors. This gene product is one of two closely related family members, the HAND proteins, which are asymmetrically expressed in the developing ventricular chambers and play an essential role in cardiac morphogenesis. Working in a complementary fashion, they function in the formation of the right ventricle and aortic arch arteries, implicating them as mediators of congenital heart disease. In addition, it has been suggested that this transcription factor may be required for early trophoblast differentiation. [provided by RefSeq, Jul 2008]
HAND1 Gene-Disease associations (from GenCC):
  • congenital heart disease
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HAND1NM_004821.3 linkc.257A>T p.Glu86Val missense_variant Exon 1 of 2 ENST00000231121.3 NP_004812.1
HAND1XM_005268531.2 linkc.257A>T p.Glu86Val missense_variant Exon 1 of 2 XP_005268588.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HAND1ENST00000231121.3 linkc.257A>T p.Glu86Val missense_variant Exon 1 of 2 1 NM_004821.3 ENSP00000231121.2 O96004
ENSG00000306071ENST00000815094.1 linkn.233+179T>A intron_variant Intron 1 of 1

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151658
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
33
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151658
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74078
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41138
American (AMR)
AF:
0.0000655
AC:
1
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5138
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10554
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67966
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hypoplastic left heart syndrome Uncertain:1
Nov 03, 2017
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamic acid with valine at codon 86 of the HAND1 protein (p.Glu86Val). The glutamic acid residue is highly conserved and there is a moderate physicochemical difference between glutamic acid and valine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with HAND1-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.55
BayesDel_addAF
Uncertain
0.073
D
BayesDel_noAF
Benign
-0.13
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.39
T
Eigen
Benign
0.0096
Eigen_PC
Benign
0.10
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.68
T
M_CAP
Pathogenic
0.81
D
MetaRNN
Uncertain
0.45
T
MetaSVM
Uncertain
0.35
D
MutationAssessor
Benign
1.0
L
PhyloP100
0.55
PrimateAI
Uncertain
0.78
T
PROVEAN
Benign
-0.82
N
REVEL
Uncertain
0.42
Sift
Benign
0.12
T
Sift4G
Benign
0.32
T
Polyphen
0.86
P
Vest4
0.35
MutPred
0.35
Gain of sheet (P = 0.0149);
MVP
0.97
MPC
0.82
ClinPred
0.58
D
GERP RS
5.0
PromoterAI
0.036
Neutral
Varity_R
0.34
gMVP
0.62
Mutation Taster
=57/43
polymorphism

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

Other links and lift over

dbSNP: rs1177737621; hg19: chr5-153857312; API