NM_021973.3:c.284C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_021973.3(HAND2):​c.284C>T​(p.Pro95Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000314 in 1,591,936 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P95A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

HAND2
NM_021973.3 missense

Scores

2
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.67

Publications

0 publications found
Variant links:
Genes affected
HAND2 (HGNC:4808): (heart and neural crest derivatives expressed 2) 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, this transcription factor plays an important role in limb and branchial arch development. [provided by RefSeq, Jul 2008]
HAND2-AS1 (HGNC:48872): (HAND2 antisense RNA 1) Predicted to be involved in positive regulation of gene expression. Predicted to act upstream of or within with a positive effect on cardiac right ventricle morphogenesis. Predicted to act upstream of or within transcription elongation from RNA polymerase II promoter. Predicted to be located in chromatin; cytoplasm; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30066687).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021973.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HAND2
NM_021973.3
MANE Select
c.284C>Tp.Pro95Leu
missense
Exon 1 of 2NP_068808.1P61296-1
HAND2-AS1
NR_136197.1
n.240+167G>A
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HAND2
ENST00000359562.4
TSL:1 MANE Select
c.284C>Tp.Pro95Leu
missense
Exon 1 of 2ENSP00000352565.4P61296-1
HAND2
ENST00000505300.1
TSL:5
n.446C>T
non_coding_transcript_exon
Exon 3 of 3
HAND2-AS1
ENST00000512099.5
TSL:2
n.1232+505G>A
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151916
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD2 exomes
AF:
0.00000914
AC:
2
AN:
218882
AF XY:
0.00000830
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000659
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000208
AC:
3
AN:
1440020
Hom.:
0
Cov.:
31
AF XY:
0.00000140
AC XY:
1
AN XY:
715466
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31942
American (AMR)
AF:
0.0000742
AC:
3
AN:
40420
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39046
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82646
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52494
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4926
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1104246
Other (OTH)
AF:
0.00
AC:
0
AN:
59172
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
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

Exome 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
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151916
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74204
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41386
American (AMR)
AF:
0.000131
AC:
2
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5104
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67946
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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:
0.0000227

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.098
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.060
CADD
Uncertain
25
DANN
Benign
0.97
DEOGEN2
Uncertain
0.45
T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.11
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.78
T
M_CAP
Pathogenic
0.61
D
MetaRNN
Benign
0.30
T
MetaSVM
Uncertain
0.35
D
MutationAssessor
Benign
1.6
L
PhyloP100
3.7
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
-1.4
N
REVEL
Uncertain
0.44
Sift
Benign
0.095
T
Sift4G
Uncertain
0.0090
D
Polyphen
0.62
P
Vest4
0.12
MutPred
0.18
Loss of methylation at K99 (P = 0.053)
MVP
1.0
MPC
0.98
ClinPred
0.29
T
GERP RS
4.0
Varity_R
0.10
gMVP
0.64
Mutation Taster
=85/15
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: rs970062302; hg19: chr4-174450157; API