Genetic Variant ASH2L:p.Gly26Ala (chr8-38105627-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004674.5(ASH2L):c.77G>C(p.Gly26Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000311 in 1,605,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. G26E) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

ASH2L
NM_004674.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.452

Publications

0 publications found

Variant links:

Genes affected

ASH2L (HGNC:744): (ASH2 like, histone lysine methyltransferase complex subunit) Enables beta-catenin binding activity and transcription cis-regulatory region binding activity. Contributes to histone methyltransferase activity (H3-K4 specific). Involved in histone H3-K4 methylation; positive regulation of cell population proliferation; and response to estrogen. Acts upstream of or within cellular response to DNA damage stimulus. Located in nucleus. Part of MLL3/4 complex and Set1C/COMPASS complex. [provided by Alliance of Genome Resources, Apr 2022]

ASH2L links:

ENSG00000307990 (HGNC:):

ENSG00000307990 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.037359387).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASH2L	NM_004674.5 link	c.77G>C	p.Gly26Ala	missense_variant	Exon 1 of 16	ENST00000343823.11	NP_004665.2	Q9UBL3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ASH2L	ENST00000343823.11 link	c.77G>C	p.Gly26Ala	missense_variant	Exon 1 of 16	1	NM_004674.5	ENSP00000340896.5		Q9UBL3-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000848

AC:

AN:

235830

AF XY:

0.00000777

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:

0.0000190

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000275

AC:

AN:

1453528

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

722952

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32836

American (AMR)

AF:

0.00

AC:

AN:

43248

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25688

East Asian (EAS)

AF:

0.00

AC:

AN:

39228

South Asian (SAS)

AF:

0.00

AC:

AN:

85438

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52880

Middle Eastern (MID)

AF:

0.000193

AC:

AN:

5190

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1109084

Other (OTH)

AF:

0.00

AC:

AN:

59936

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.438

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74378

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41468

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.053

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.51

CADD

Benign

1.8

(source)

DANN

Benign

0.40

DEOGEN2

Benign

0.085

T;T

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.00070

LIST_S2

Benign

0.57

T;T

M_CAP

Benign

0.013

MetaRNN

Benign

0.037

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.34

N;.

PhyloP100

0.45

PrimateAI

Uncertain

0.58

PROVEAN

Benign

0.040

N;N

REVEL

Benign

0.064

Sift

Benign

1.0

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.0

B;.

Vest4

0.042

MutPred

0.23

Gain of helix (P = 0.0022);Gain of helix (P = 0.0022);

MVP

0.32

MPC

0.011

ClinPred

0.046

GERP RS

1.4

PromoterAI

0.060

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.030

gMVP

0.19

Mutation Taster

=99/1

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over