Genetic Variant MACROH2A1:p.Ala180Val (chr5-135360546-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_138610.3(MACROH2A1):c.539C>T(p.Ala180Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,696 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A180G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MACROH2A1
NM_138610.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.90

Publications

0 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]

MACROH2A1 Gene-Disease associations (from GenCC):

brachydactyly-elbow wrist dysplasia syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

MACROH2A1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10922676).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MACROH2A1	NM_138610.3 link	c.539C>T	p.Ala180Val	missense_variant	Exon 5 of 9	ENST00000511689.6	NP_613258.2	O75367-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MACROH2A1	ENST00000511689.6 link	c.539C>T	p.Ala180Val	missense_variant	Exon 5 of 9	1	NM_138610.3	ENSP00000423563.1		O75367-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461696

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727158

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111866

Other (OTH)

AF:

0.00

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.59

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;.;.;T

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.23

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.81

.;T;T;T

M_CAP

Benign

0.0076

MetaRNN

Benign

0.11

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;.;L;L

PhyloP100

3.9

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-1.1

N;N;N;N

REVEL

Benign

0.061

Sift

Benign

0.29

T;T;T;T

Sift4G

Benign

0.39

T;T;T;T

Polyphen

0.0

B;B;B;B

Vest4

0.23

MutPred

0.18

Loss of relative solvent accessibility (P = 0.0676);.;Loss of relative solvent accessibility (P = 0.0676);Loss of relative solvent accessibility (P = 0.0676);

MVP

0.30

MPC

0.56

ClinPred

0.47

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.28

gMVP

0.52

Mutation Taster

=95/5

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

5-135360546-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over