4-173529013-C-A
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_021973.3(HAND2):c.277G>T(p.Gly93Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000251 in 1,592,998 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)
Exomes 𝑓: 0.0000021 ( 0 hom. )
Consequence
HAND2
NM_021973.3 missense
NM_021973.3 missense
Scores
2
7
10
Clinical Significance
Conservation
PhyloP100: 1.73
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
HAND2 | NM_021973.3 | c.277G>T | p.Gly93Trp | missense_variant | 1/2 | ENST00000359562.4 | NP_068808.1 | |
HAND2-AS1 | NR_136197.1 | n.240+174C>A | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
HAND2 | ENST00000359562.4 | c.277G>T | p.Gly93Trp | missense_variant | 1/2 | 1 | NM_021973.3 | ENSP00000352565.4 |
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 151972Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000137 AC: 3AN: 219268Hom.: 0 AF XY: 0.0000166 AC XY: 2AN XY: 120720
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GnomAD4 exome AF: 0.00000208 AC: 3AN: 1440916Hom.: 0 Cov.: 32 AF XY: 0.00000140 AC XY: 1AN XY: 715992
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GnomAD4 genome AF: 0.00000658 AC: 1AN: 152082Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74332
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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 | CeGaT Center for Human Genetics Tuebingen | Jan 01, 2023 | HAND2: PP3 - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Benign
DEOGEN2
Uncertain
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Pathogenic
D
MetaRNN
Uncertain
D
MetaSVM
Uncertain
D
MutationAssessor
Benign
L
PrimateAI
Pathogenic
D
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Benign
D
Sift4G
Uncertain
D
Polyphen
P
Vest4
MutPred
Loss of methylation at R96 (P = 0.0297);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at