20-63700674-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001267547.3(ARFRP1):​c.446C>T​(p.Thr149Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,610,740 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

ARFRP1
NM_001267547.3 missense

Scores

2
8
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.67
Variant links:
Genes affected
ARFRP1 (HGNC:662): (ADP ribosylation factor related protein 1) The protein encoded by this gene is a membrane-associated GTP-ase which localizes to the plasma membrane and is related to the ADP-ribosylation factor (ARF) and ARF-like (ARL) proteins. This gene plays a role in membrane trafficking between the trans-Golgi network and endosomes. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, May 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARFRP1NM_001267547.3 linkuse as main transcriptc.446C>T p.Thr149Met missense_variant 7/8 ENST00000622789.5 NP_001254476.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARFRP1ENST00000622789.5 linkuse as main transcriptc.446C>T p.Thr149Met missense_variant 7/81 NM_001267547.3 ENSP00000483486 P1Q13795-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
249244
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135370
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000891
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
16
AN:
1458548
Hom.:
0
Cov.:
32
AF XY:
0.0000152
AC XY:
11
AN XY:
725552
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000166
AC:
2
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsNov 08, 2022The c.446C>T (p.T149M) alteration is located in exon 7 (coding exon 6) of the ARFRP1 gene. This alteration results from a C to T substitution at nucleotide position 446, causing the threonine (T) at amino acid position 149 to be replaced by a methionine (M). 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
0.077
BayesDel_addAF
Uncertain
0.069
T
BayesDel_noAF
Uncertain
0.040
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.37
.;T;T;T;.;.
Eigen
Uncertain
0.23
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
.;.;D;.;D;D
M_CAP
Benign
0.053
D
MetaRNN
Uncertain
0.64
D;D;D;D;D;D
MetaSVM
Uncertain
-0.21
T
MutationAssessor
Benign
1.0
.;L;L;L;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.68
T
Sift4G
Benign
0.11
T;T;T;T;T;T
Polyphen
0.27
.;B;B;B;.;.
Vest4
0.82
MutPred
0.37
.;Loss of ubiquitination at K148 (P = 0.057);Loss of ubiquitination at K148 (P = 0.057);Loss of ubiquitination at K148 (P = 0.057);Loss of ubiquitination at K148 (P = 0.057);.;
MVP
0.83
ClinPred
0.70
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.21
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs750696744; hg19: chr20-62332026; COSMIC: COSV99423256; COSMIC: COSV99423256; API