5-135335067-G-T

Variant summary

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

The NM_138610.3(MACROH2A1):​c.1028C>A​(p.Ser343Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,888 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 (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MACROH2A1
NM_138610.3 missense

Scores

5
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.70

Publications

1 publications found
Variant links:
Genes affected
MACROH2A1 (HGNC:4740): (macroH2A.1 histone) Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene encodes a replication-independent histone that is a member of the histone H2A family. It replaces conventional H2A histones in a subset of nucleosomes where it represses transcription and participates in stable X chromosome inactivation. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2015]
PITX1-AS1 (HGNC:48332): (PITX1 antisense RNA 1)

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=0.2758383).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MACROH2A1NM_138610.3 linkc.1028C>A p.Ser343Tyr missense_variant Exon 9 of 9 ENST00000511689.6 NP_613258.2 O75367-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MACROH2A1ENST00000511689.6 linkc.1028C>A p.Ser343Tyr missense_variant Exon 9 of 9 1 NM_138610.3 ENSP00000423563.1 O75367-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251488
AF XY:
0.00000736
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460888
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
726854
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33456
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111106
Other (OTH)
AF:
0.00
AC:
0
AN:
60354
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
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Sep 25, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1028C>A (p.S343Y) alteration is located in exon 9 (coding exon 8) of the H2AFY gene. This alteration results from a C to A substitution at nucleotide position 1028, causing the serine (S) at amino acid position 343 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.83
BayesDel_addAF
Benign
-0.050
T
BayesDel_noAF
Benign
-0.31
CADD
Uncertain
26
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.59
D;.;.;T;D
Eigen
Uncertain
0.65
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Pathogenic
0.97
.;D;D;D;D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.28
T;T;T;T;T
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
2.0
M;.;.;.;M
PhyloP100
6.7
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-3.3
D;D;D;D;D
REVEL
Benign
0.20
Sift
Pathogenic
0.0
D;D;D;T;D
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
0.90
P;P;P;D;P
Vest4
0.36
MutPred
0.49
Loss of disorder (P = 0.0251);.;.;.;Loss of disorder (P = 0.0251);
MVP
0.37
MPC
1.1
ClinPred
0.95
D
GERP RS
5.2
Varity_R
0.91
gMVP
0.72
Mutation Taster
=25/75
disease causing

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: rs750784210; hg19: chr5-134670757; API