dbSNP rs755993200: CHPF:p.Glu700Lys (chr2-219539613-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_024536.6(CHPF):c.2098G>A(p.Glu700Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000425 in 1,613,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E700V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00043 ( 0 hom. )

Consequence

CHPF
NM_024536.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.64

Publications

3 publications found

Variant links:

Genes affected

CHPF (HGNC:24291): (chondroitin polymerizing factor) Enables N-acetylgalactosaminyl-proteoglycan 3-beta-glucuronosyltransferase activity and glucuronosyl-N-acetylgalactosaminyl-proteoglycan 4-beta-N-acetylgalactosaminyltransferase activity. Involved in chondroitin sulfate biosynthetic process. Predicted to be located in Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]

CHPF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.22448361).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024536.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHPF	NM_024536.6	MANE Select	c.2098G>A	p.Glu700Lys	missense	Exon 4 of 4	NP_078812.3
	CHPF	NM_001195731.2		c.1612G>A	p.Glu538Lys	missense	Exon 4 of 4	NP_001182660.2	Q8IZ52-4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CHPF	ENST00000243776.11	TSL:1 MANE Select	c.2098G>A	p.Glu700Lys	missense	Exon 4 of 4	ENSP00000243776.6	Q8IZ52-1
CHPF	ENST00000691864.1		c.2074G>A	p.Glu692Lys	missense	Exon 4 of 4	ENSP00000509104.1	A0A8I5QJC8
CHPF	ENST00000919936.1		c.2020G>A	p.Glu674Lys	missense	Exon 4 of 4	ENSP00000589995.1

Frequencies

GnomAD3 genomes

AF:

0.000374

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

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:

0.000661

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000244

AC:

AN:

250000

AF XY:

0.000251

show subpopulations

Gnomad AFR exome

AF:

0.000187

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000497

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000430

AC:

629

AN:

1461520

Hom.:

Cov.:

AF XY:

0.000397

AC XY:

289

AN XY:

727086

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.0000376

AC:

AN:

53194

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000545

AC:

606

AN:

1111928

Other (OTH)

AF:

0.000298

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

123

164

205

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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

AF:

0.000374

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.000241

AC:

AN:

41462

American (AMR)

AF:

0.0000654

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

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:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000661

AC:

AN:

68040

Other (OTH)

AF:

0.000478

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000427

Hom.:

Bravo

AF:

0.000257

ExAC

AF:

0.000157

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000415

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.33

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.11

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.029

MetaRNN

Benign

0.22

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

PhyloP100

7.6

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.8

REVEL

Benign

0.20

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.019

Polyphen

0.97

Vest4

0.39

MVP

0.69

MPC

0.82

ClinPred

0.13

GERP RS

4.6

Varity_R

0.27

gMVP

0.57

Mutation Taster

=62/38

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over