chr1-28594077-C-A

Variant names:

Variant summary

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

The NM_001193532.3(RAB42):c.617C>A(p.Ser206Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,609,374 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

RAB42
NM_001193532.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.250

Variant links:

Genes affected

RAB42 (HGNC:28702): (RAB42, member RAS oncogene family) Predicted to enable GDP binding activity; GTP binding activity; and GTPase activity. Predicted to be involved in Ras protein signal transduction. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

RAB42 links:

TAF12 (HGNC:11545): (TATA-box binding protein associated factor 12) Control of transcription by RNA polymerase II involves the basal transcription machinery which is a collection of proteins. These proteins with RNA polymerase II, assemble into complexes which are modulated by transactivator proteins that bind to cis-regulatory elements located adjacent to the transcription start site. Some modulators interact directly with the basal complex, whereas others may act as bridging proteins linking transactivators to the basal transcription factors. Some of these associated factors are weakly attached while others are tightly associated with TBP in the TFIID complex. Among the latter are the TAF proteins. Different TAFs are predicted to mediate the function of distinct transcriptional activators for a variety of gene promoters and RNA polymerases. TAF12 interacts directly with TBP as well as with TAF2I. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Sep 2008]

TAF12 links:

Genome browser will be placed here

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=0.101888865).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAB42	NM_001193532.3 link	c.617C>A	p.Ser206Tyr	missense_variant	Exon 2 of 2	ENST00000465518.3	NP_001180461.1	Q8N4Z0-2
RAB42	NM_152304.3 link	c.278C>A	p.Ser93Tyr	missense_variant	Exon 2 of 2		NP_689517.1	Q8N4Z0-1
RAB42	XM_047443959.1 link	c.278C>A	p.Ser93Tyr	missense_variant	Exon 2 of 2		XP_047299915.1
RAB42	NM_001385188.1 link	c.233+1333C>A		intron_variant	Intron 1 of 1		NP_001372117.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAB42	ENST00000465518.3 link	c.617C>A	p.Ser206Tyr	missense_variant	Exon 2 of 2	2	NM_001193532.3	ENSP00000491546.1		Q8N4Z0-2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152170

Hom.:

Cov.:

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000244

AC:

AN:

245476

Hom.:

AF XY:

0.0000226

AC XY:

AN XY:

132742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000471

Gnomad NFE exome

AF:

0.0000362

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.0000213

AC:

AN:

1457204

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

724560

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000225

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:

0.0000234

Gnomad4 OTH exome

AF:

0.0000665

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74342

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:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000162

Hom.:

Bravo

AF:

0.0000189

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

May 31, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.617C>A (p.S206Y) alteration is located in exon 2 (coding exon 2) of the RAB42 gene. This alteration results from a C to A substitution at nucleotide position 617, causing the serine (S) at amino acid position 206 to be replaced by a tyrosine (Y). 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

0.089

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Benign

0.94

Eigen

Benign

-0.67

Eigen_PC

Benign

-0.66

FATHMM_MKL

Benign

0.064

LIST_S2

Benign

0.52

T;T

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.10

T;T

MetaSVM

Benign

-0.74

MutationAssessor

Benign

0.69

N;.

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.7

N;.

REVEL

Benign

0.20

Sift

Benign

0.26

T;.

Sift4G

Uncertain

0.047

D;.

Vest4

0.17

MVP

0.72

MPC

0.18

ClinPred

0.069

GERP RS

1.9

Varity_R

0.052

gMVP

0.32

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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