Variant 7-151234016-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_019015.3(CHPF2):c.5G>A(p.Arg2Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000204 in 1,518,838 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

CHPF2
NM_019015.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.88

Variant links:

Genes affected

CHPF2 (HGNC:29270): (chondroitin polymerizing factor 2) Predicted to enable glucuronosyl-N-acetylgalactosaminyl-proteoglycan 4-beta-N-acetylgalactosaminyltransferase activity. Predicted to be involved in chondroitin sulfate biosynthetic process. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

CHPF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 30 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHPF2	NM_019015.3 link	c.5G>A	p.Arg2Gln	missense_variant	1/4	ENST00000035307.7	NP_061888.1	Q9P2E5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CHPF2	ENST00000035307.7 link	c.5G>A	p.Arg2Gln	missense_variant	1/4	1	NM_019015.3	ENSP00000035307.2		Q9P2E5-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000341

AC:

AN:

176098

Hom.:

AF XY:

0.0000427

AC XY:

AN XY:

93638

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000252

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000125

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000220

AC:

AN:

1366632

Hom.:

Cov.:

AF XY:

0.0000298

AC XY:

AN XY:

671940

show subpopulations

Gnomad4 AFR exome

AF:

0.0000332

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000493

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000140

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000141

Gnomad4 OTH exome

AF:

0.0000534

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000556

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000331

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

Oct 12, 2021

The c.5G>A (p.R2Q) alteration is located in exon 1 (coding exon 1) of the CHPF2 gene. This alteration results from a G to A substitution at nucleotide position 5, causing the arginine (R) at amino acid position 2 to be replaced by a glutamine (Q). 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

0.26

BayesDel_addAF

Uncertain

0.023

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.079

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.83

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.72

MetaSVM

Benign

-0.59

MutationAssessor

Uncertain

2.6

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-1.6

REVEL

Benign

0.24

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.99

Vest4

0.71

MutPred

0.36

Loss of methylation at R2 (P = 0.0172);

MVP

0.68

MPC

0.17

ClinPred

0.43

GERP RS

5.1

Varity_R

0.51

gMVP

0.78

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

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