Variant 19-4402800-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005483.3(CHAF1A):c.38G>A(p.Arg13Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CHAF1A
NM_005483.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.07

Variant links:

Genes affected

CHAF1A (HGNC:1910): (chromatin assembly factor 1 subunit A) Chromatin assembly factor I (CAF1) is a nuclear complex consisting of p50, p60 (CHAF1B; MIM 601245), and p150 (CHAF1A) subunits that assembles histone octamers onto replicating DNA in vitro (Kaufman et al., 1995 [PubMed 7600578]).[supplied by OMIM, Mar 2008]

CHAF1A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18657732).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CHAF1A	NM_005483.3 linkuse as main transcript	c.38G>A	p.Arg13Lys	missense_variant	1/15	ENST00000301280.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CHAF1A	ENST00000301280.10 linkuse as main transcript	c.38G>A	p.Arg13Lys	missense_variant	1/15	1	NM_005483.3	P1	Q13111-1
CHAF1A	ENST00000585854.1 linkuse as main transcript	c.38G>A	p.Arg13Lys	missense_variant	1/2	2
CHAF1A	ENST00000587580.1 linkuse as main transcript	n.99G>A		non_coding_transcript_exon_variant	1/3	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1053890

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

497306

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 29, 2024

The c.38G>A (p.R13K) alteration is located in exon 1 (coding exon 1) of the CHAF1A gene. This alteration results from a G to A substitution at nucleotide position 38, causing the arginine (R) at amino acid position 13 to be replaced by a lysine (K). 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

Benign

0.16

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.023

T;.

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.31

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.45

T;T

M_CAP

Uncertain

0.088

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.9

L;.

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

0.070

N;.

REVEL

Benign

0.059

Sift

Benign

0.12

T;.

Sift4G

Benign

0.16

T;D

Polyphen

0.23

B;.

Vest4

0.15

MutPred

0.21

Gain of ubiquitination at R13 (P = 0.0051);Gain of ubiquitination at R13 (P = 0.0051);

MVP

0.55

MPC

0.16

ClinPred

0.57

GERP RS

3.0

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.5

Varity_R

0.16

gMVP

0.19

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over