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GeneBe

13-110524008-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_017817.3(RAB20):​c.362G>A​(p.Gly121Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000458 in 1,614,046 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00034 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00047 ( 1 hom. )

Consequence

RAB20
NM_017817.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.108
Variant links:
Genes affected
RAB20 (HGNC:18260): (RAB20, member RAS oncogene family) Predicted to enable GTPase activity. Involved in phagosome acidification and phagosome-lysosome fusion. Located in Golgi apparatus and phagocytic vesicle. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.020046592).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RAB20NM_017817.3 linkuse as main transcriptc.362G>A p.Gly121Glu missense_variant 2/2 ENST00000267328.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RAB20ENST00000267328.5 linkuse as main transcriptc.362G>A p.Gly121Glu missense_variant 2/21 NM_017817.3 P1

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152186
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000282
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000544
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000334
AC:
84
AN:
251388
Hom.:
1
AF XY:
0.000339
AC XY:
46
AN XY:
135878
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000231
Gnomad NFE exome
AF:
0.000642
Gnomad OTH exome
AF:
0.000815
GnomAD4 exome
AF:
0.000471
AC:
689
AN:
1461860
Hom.:
1
Cov.:
30
AF XY:
0.000454
AC XY:
330
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000243
Gnomad4 NFE exome
AF:
0.000585
Gnomad4 OTH exome
AF:
0.000397
GnomAD4 genome
AF:
0.000335
AC:
51
AN:
152186
Hom.:
1
Cov.:
33
AF XY:
0.000309
AC XY:
23
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000282
Gnomad4 NFE
AF:
0.000544
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000417
Hom.:
2
Bravo
AF:
0.000268
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000581
AC:
5
ExAC
AF:
0.000453
AC:
55
EpiCase
AF:
0.000327
EpiControl
AF:
0.000652

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 GeneticsAug 11, 2022The c.362G>A (p.G121E) alteration is located in exon 2 (coding exon 2) of the RAB20 gene. This alteration results from a G to A substitution at nucleotide position 362, causing the glycine (G) at amino acid position 121 to be replaced by a glutamic acid (E). 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
0.078
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
7.5
DANN
Benign
0.34
DEOGEN2
Benign
0.17
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.046
N
LIST_S2
Benign
0.30
T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.020
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.085
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.30
N
REVEL
Benign
0.040
Sift
Benign
0.66
T
Sift4G
Benign
0.44
T
Polyphen
0.071
B
Vest4
0.11
MVP
0.44
MPC
0.88
ClinPred
0.018
T
GERP RS
1.4
Varity_R
0.052
gMVP
0.32

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: rs148925949; hg19: chr13-111176355; API