chr20-48921865-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_006420.3(ARFGEF2):​c.-25C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000363 in 1,514,012 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.0019 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

ARFGEF2
NM_006420.3 5_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0290
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 -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.61).
BP6
Variant 20-48921865-C-T is Benign according to our data. Variant chr20-48921865-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 516307.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00193 (292/151630) while in subpopulation AFR AF= 0.00678 (279/41162). AF 95% confidence interval is 0.00612. There are 1 homozygotes in gnomad4. There are 141 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARFGEF2NM_006420.3 linkuse as main transcriptc.-25C>T 5_prime_UTR_variant 1/39 ENST00000371917.5
ARFGEF2NM_001410846.1 linkuse as main transcriptc.-25C>T 5_prime_UTR_variant 1/39
ARFGEF2XM_047439832.1 linkuse as main transcriptc.-434C>T 5_prime_UTR_variant 1/37

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARFGEF2ENST00000371917.5 linkuse as main transcriptc.-25C>T 5_prime_UTR_variant 1/391 NM_006420.3 P4

Frequencies

GnomAD3 genomes
AF:
0.00193
AC:
293
AN:
151520
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00682
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000656
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:
0.00144
GnomAD3 exomes
AF:
0.000265
AC:
33
AN:
124620
Hom.:
0
AF XY:
0.000283
AC XY:
19
AN XY:
67152
show subpopulations
Gnomad AFR exome
AF:
0.00728
Gnomad AMR exome
AF:
0.000142
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000290
GnomAD4 exome
AF:
0.000189
AC:
258
AN:
1362382
Hom.:
0
Cov.:
31
AF XY:
0.000180
AC XY:
121
AN XY:
671754
show subpopulations
Gnomad4 AFR exome
AF:
0.00789
Gnomad4 AMR exome
AF:
0.000337
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:
0.00000283
Gnomad4 OTH exome
AF:
0.000446
GnomAD4 genome
AF:
0.00193
AC:
292
AN:
151630
Hom.:
1
Cov.:
32
AF XY:
0.00190
AC XY:
141
AN XY:
74152
show subpopulations
Gnomad4 AFR
AF:
0.00678
Gnomad4 AMR
AF:
0.000655
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:
0.00143
Alfa
AF:
0.00187
Hom.:
0
Bravo
AF:
0.00235

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxApr 30, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.61
CADD
Benign
11
DANN
Benign
0.90

Splicing

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: rs559835122; hg19: chr20-47538402; API