NM_006420.3:c.81C>G

Variant names:

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS1

The NM_006420.3(ARFGEF2):c.81C>G(p.Pro27Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000122 in 1,577,208 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

ARFGEF2
NM_006420.3 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.350

Publications

1 publications found

Variant links:

Genes affected

ARFGEF2 (HGNC:15853): (ADP ribosylation factor guanine nucleotide exchange factor 2) ADP-ribosylation factors (ARFs) play an important role in intracellular vesicular trafficking. The protein encoded by this gene is involved in the activation of ARFs by accelerating replacement of bound GDP with GTP and is involved in Golgi transport. It contains a Sec7 domain, which may be responsible for its guanine-nucleotide exchange activity and also brefeldin A inhibition. [provided by RefSeq, Jul 2008]

ARFGEF2 Gene-Disease associations (from GenCC):

periventricular heterotopia with microcephaly, autosomal recessive
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
periventricular nodular heterotopia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ARFGEF2 links:

ENSG00000294533 (HGNC:):

ENSG00000294533 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.55).

BP6

Variant 20-48921970-C-G is Benign according to our data. Variant chr20-48921970-C-G is described in ClinVar as Benign. ClinVar VariationId is 707703.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.35 with no splicing effect.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000145 (22/152212) while in subpopulation EAS AF = 0.00407 (21/5162). AF 95% confidence interval is 0.00273. There are 0 homozygotes in GnomAd4. There are 12 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006420.3. 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
	ARFGEF2	NM_006420.3	MANE Select	c.81C>G	p.Pro27Pro	synonymous	Exon 1 of 39	NP_006411.2	Q9Y6D5
	ARFGEF2	NM_001410846.1		c.81C>G	p.Pro27Pro	synonymous	Exon 1 of 39	NP_001397775.1	A0A7P0T7Z2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ARFGEF2	ENST00000371917.5	TSL:1 MANE Select	c.81C>G	p.Pro27Pro	synonymous	Exon 1 of 39	ENSP00000360985.4	Q9Y6D5
ARFGEF2	ENST00000679436.1		c.81C>G	p.Pro27Pro	synonymous	Exon 1 of 39	ENSP00000504888.1	A0A7P0T7Z2
ARFGEF2	ENST00000939861.1		c.81C>G	p.Pro27Pro	synonymous	Exon 1 of 39	ENSP00000609920.1

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00406

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

GnomAD2 exomes

AF:

0.000219

AC:

AN:

187030

AF XY:

0.000209

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00275

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000204

GnomAD4 exome

AF:

0.000119

AC:

170

AN:

1424996

Hom.:

Cov.:

AF XY:

0.000109

AC XY:

AN XY:

705500

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32694

American (AMR)

AF:

0.00

AC:

AN:

39022

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25390

East Asian (EAS)

AF:

0.00324

AC:

122

AN:

37704

South Asian (SAS)

AF:

0.0000123

AC:

AN:

81212

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50498

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5722

European-Non Finnish (NFE)

AF:

0.00000183

AC:

AN:

1093814

Other (OTH)

AF:

0.000763

AC:

AN:

58940

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

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

AF:

0.000145

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74444

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41554

American (AMR)

AF:

0.0000654

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00407

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67970

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

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:

0.0000712

Hom.:

Bravo

AF:

0.000155

Asia WGS

AF:

0.00289

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

ARFGEF2-related disorder (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Benign

0.82

PhyloP100

-0.35

PromoterAI

-0.031

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over