Genetic Variant RAB17:p.Asp152Asn (chr2-237575462-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022449.4(RAB17):c.454G>A(p.Asp152Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,610,958 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 1 hom. )

Consequence

RAB17
NM_022449.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.29

Variant links:

Genes affected

RAB17 (HGNC:16523): (RAB17, member RAS oncogene family) The Rab subfamily of small GTPases plays an important role in the regulation of membrane trafficking. RAB17 is an epithelial cell-specific GTPase (Lutcke et al., 1993 [PubMed 8486736]).[supplied by OMIM, Oct 2009]

RAB17 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19947451).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAB17	NM_022449.4 link	c.454G>A	p.Asp152Asn	missense_variant	Exon 5 of 6	ENST00000264601.8	NP_071894.1	Q9H0T7-1A0A024R4A4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAB17	ENST00000264601.8 link	c.454G>A	p.Asp152Asn	missense_variant	Exon 5 of 6	1	NM_022449.4	ENSP00000264601.3		Q9H0T7-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000690

AC:

AN:

246528

Hom.:

AF XY:

0.0000826

AC XY:

AN XY:

133250

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000329

Gnomad SAS exome

AF:

0.000236

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000358

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000343

AC:

AN:

1458748

Hom.:

Cov.:

AF XY:

0.0000441

AC XY:

AN XY:

725316

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000202

Gnomad4 SAS exome

AF:

0.000246

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000189

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.454G>A (p.D152N) alteration is located in exon 5 (coding exon 4) of the RAB17 gene. This alteration results from a G to A substitution at nucleotide position 454, causing the aspartic acid (D) at amino acid position 152 to be replaced by an asparagine (N). 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

0.091

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.12

T;.;T

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.50

FATHMM_MKL

Benign

0.31

LIST_S2

Benign

0.82

T;D;T

M_CAP

Benign

0.053

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-0.78

MutationAssessor

Benign

0.52

N;.;.

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.3

N;N;N

REVEL

Benign

0.18

Sift

Benign

0.13

T;D;T

Sift4G

Benign

0.15

T;T;.

Polyphen

0.068

B;.;.

Vest4

0.19

MutPred

0.35

Loss of ubiquitination at K155 (P = 0.069);.;.;

MVP

0.72

MPC

0.073

ClinPred

0.037

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.11

gMVP

0.26

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over