Genetic Variant H2BC15:p.Val42Leu (chr6-27838785-G-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_003520.4(H2BC15):c.124G>C(p.Val42Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,890 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. V42M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

H2BC15
NM_003520.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.47

Publications

0 publications found

Variant links:

Genes affected

H2BC15 (HGNC:4749): (H2B clustered histone 15) Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene is intronless and encodes a replication-dependent histone that is a member of the histone H2B family. Transcripts from this gene lack polyA tails but instead contain a palindromic termination element. This gene is found in the small histone gene cluster on chromosome 6p22-p21.3. [provided by RefSeq, Aug 2015]

H2BC15 links:

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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=0.26779318).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
H2BC15	NM_003520.4 link	c.124G>C	p.Val42Leu	missense_variant	Exon 1 of 1	ENST00000612898.2	NP_003511.1	Q99877A0A024RCJ9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
H2BC15	ENST00000612898.2 link	c.124G>C	p.Val42Leu	missense_variant	Exon 1 of 1	6	NM_003520.4	ENSP00000483903.1	Q99877
H2BC15	ENST00000606613.1 link	c.124G>C	p.Val42Leu	missense_variant	Exon 1 of 3	1		ENSP00000475942.1	U3KQK0
H2BC15	ENST00000449538.3 link	n.124G>C		non_coding_transcript_exon_variant	Exon 1 of 3	1		ENSP00000446031.1	Q99877

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.82

BayesDel_addAF

Uncertain

0.025

BayesDel_noAF

Benign

-0.20

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.081

T;T;T

Eigen

Benign

-0.037

Eigen_PC

Benign

0.14

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.82

.;T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.27

T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

0.65

N;.;N

PhyloP100

5.5

PrimateAI

Pathogenic

0.88

PROVEAN

Benign

-1.8

.;.;N

REVEL

Benign

0.14

Sift

Benign

0.048

.;.;D

Sift4G

Benign

0.11

T;T;T

Polyphen

0.0

B;.;B

Vest4

0.40

MutPred

0.26

Loss of MoRF binding (P = 0.1025);Loss of MoRF binding (P = 0.1025);Loss of MoRF binding (P = 0.1025);

MVP

0.72

MPC

0.81

ClinPred

0.76

GERP RS

3.8

PromoterAI

-0.12

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.39

gMVP

0.36

Mutation Taster

=79/21

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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