rs41304647

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_006420.3(ARFGEF2):​c.424-16C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0598 in 1,613,286 control chromosomes in the GnomAD database, including 3,267 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.047 ( 191 hom., cov: 32)
Exomes 𝑓: 0.061 ( 3076 hom. )

Consequence

ARFGEF2
NM_006420.3 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -3.60
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 20-48952689-C-T is Benign according to our data. Variant chr20-48952689-C-T is described in ClinVar as [Benign]. Clinvar id is 136418.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-48952689-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.0955 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARFGEF2NM_006420.3 linkuse as main transcriptc.424-16C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000371917.5 NP_006411.2
ARFGEF2NM_001410846.1 linkuse as main transcriptc.424-16C>T splice_polypyrimidine_tract_variant, intron_variant NP_001397775.1
ARFGEF2XM_047439832.1 linkuse as main transcriptc.-141-16C>T splice_polypyrimidine_tract_variant, intron_variant XP_047295788.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARFGEF2ENST00000371917.5 linkuse as main transcriptc.424-16C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_006420.3 ENSP00000360985 P4

Frequencies

GnomAD3 genomes
AF:
0.0473
AC:
7192
AN:
152136
Hom.:
192
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0120
Gnomad AMI
AF:
0.0187
Gnomad AMR
AF:
0.0387
Gnomad ASJ
AF:
0.0951
Gnomad EAS
AF:
0.0813
Gnomad SAS
AF:
0.103
Gnomad FIN
AF:
0.0347
Gnomad MID
AF:
0.0823
Gnomad NFE
AF:
0.0637
Gnomad OTH
AF:
0.0533
GnomAD3 exomes
AF:
0.0599
AC:
15054
AN:
251388
Hom.:
591
AF XY:
0.0652
AC XY:
8854
AN XY:
135884
show subpopulations
Gnomad AFR exome
AF:
0.0108
Gnomad AMR exome
AF:
0.0245
Gnomad ASJ exome
AF:
0.0935
Gnomad EAS exome
AF:
0.0694
Gnomad SAS exome
AF:
0.113
Gnomad FIN exome
AF:
0.0334
Gnomad NFE exome
AF:
0.0635
Gnomad OTH exome
AF:
0.0653
GnomAD4 exome
AF:
0.0611
AC:
89264
AN:
1461032
Hom.:
3076
Cov.:
32
AF XY:
0.0632
AC XY:
45971
AN XY:
726854
show subpopulations
Gnomad4 AFR exome
AF:
0.0104
Gnomad4 AMR exome
AF:
0.0263
Gnomad4 ASJ exome
AF:
0.0910
Gnomad4 EAS exome
AF:
0.0570
Gnomad4 SAS exome
AF:
0.111
Gnomad4 FIN exome
AF:
0.0358
Gnomad4 NFE exome
AF:
0.0606
Gnomad4 OTH exome
AF:
0.0615
GnomAD4 genome
AF:
0.0472
AC:
7192
AN:
152254
Hom.:
191
Cov.:
32
AF XY:
0.0466
AC XY:
3472
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.0120
Gnomad4 AMR
AF:
0.0386
Gnomad4 ASJ
AF:
0.0951
Gnomad4 EAS
AF:
0.0815
Gnomad4 SAS
AF:
0.103
Gnomad4 FIN
AF:
0.0347
Gnomad4 NFE
AF:
0.0637
Gnomad4 OTH
AF:
0.0546
Alfa
AF:
0.0603
Hom.:
55
Bravo
AF:
0.0448
Asia WGS
AF:
0.0640
AC:
223
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingGeneDxOct 30, 2013This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.0080
DANN
Benign
0.46

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.

Other links and lift over

dbSNP: rs41304647; hg19: chr20-47569226; COSMIC: COSV64211288; API