Genetic Variant CHD1L:p.Ala760Pro (chr1-147287691-G-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004284.6(CHD1L):c.2278G>C(p.Ala760Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000753 in 1,461,780 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. A760T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

CHD1L
NM_004284.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.62

Publications

1 publications found

Variant links:

Genes affected

CHD1L (HGNC:1916): (chromodomain helicase DNA binding protein 1 like) This gene encodes a DNA helicase protein involved in DNA repair. The protein converts ATP to add poly(ADP-ribose) as it regulates chromatin relaxation following DNA damage. Overexpression of this gene has been linked to several types of cancers. [provided by RefSeq, Feb 2017]

CHD1L links:

LINC00624 (HGNC:44254): (long intergenic non-protein coding RNA 624)

LINC00624 links:

ENSG00000237188 (HGNC:):

ENSG00000237188 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.091652066).

BS2

High AC in GnomAdExome4 at 11 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHD1L	NM_004284.6 link	c.2278G>C	p.Ala760Pro	missense_variant	Exon 19 of 23	ENST00000369258.8	NP_004275.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHD1L	ENST00000369258.8 link	c.2278G>C	p.Ala760Pro	missense_variant	Exon 19 of 23	1	NM_004284.6	ENSP00000358262.4		Q86WJ1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251124

AF XY:

0.0000147

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000753

AC:

AN:

1461780

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53372

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000989

AC:

AN:

1111982

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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.:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.080

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0063

.;T;T;.

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.36

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.90

D;.;D;D

M_CAP

Benign

0.010

MetaRNN

Benign

0.092

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

.;.;L;.

PhyloP100

2.6

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.18

N;D;N;N

REVEL

Benign

0.074

Sift

Benign

0.32

T;D;T;T

Sift4G

Benign

0.32

T;T;T;T

Polyphen

0.0050, 0.0020

.;.;B;B

Vest4

0.31

MutPred

0.19

.;.;Gain of glycosylation at A760 (P = 0.0142);.;

MVP

0.088

MPC

0.046

ClinPred

0.24

GERP RS

3.6

Varity_R

0.066

gMVP

0.40

Mutation Taster

=78/22

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over