1-28592637-G-C

Variant names:

• chr1-28592637-G-C
• rs1666342242
• NM_001193532.3:c.126G>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001193532.3(RAB42):​c.126G>C​(p.Glu42Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 8/12 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: RAB42 NM_001193532.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.87
• Publications: 0 publications found

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]

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3001635).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001193532.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAB42	NM_001193532.3	MANE Select	c.126G>C	p.Glu42Asp	missense	Exon 1 of 2	NP_001180461.1	Q8N4Z0-2
	RAB42	NM_001385188.1		c.126G>C	p.Glu42Asp	missense	Exon 1 of 2	NP_001372117.1
	RAB42	NM_152304.3		c.-107+238G>C		intron	N/A	NP_689517.1	Q8N4Z0-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAB42	ENST00000465518.3	TSL:2 MANE Select	c.126G>C	p.Glu42Asp	missense	Exon 1 of 2	ENSP00000491546.1	Q8N4Z0-2
	RAB42	ENST00000373826.3	TSL:1	c.-107+238G>C		intron	N/A	ENSP00000362932.3	Q8N4Z0-1
	TAF12	ENST00000688108.1		c.451-2251C>G		intron	N/A	ENSP00000510282.1	A0A8I5KTB6

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_noAF	Benign	-0.72
CADD	Benign	14
DANN	Benign	0.83
FATHMM_MKL	Benign	0.15	N
LIST_S2	Benign	0.45	T
MetaRNN	Benign	0.30	T
PhyloP100		1.9
PrimateAI	Pathogenic	0.91	D
GERP RS		3.1
PromoterAI		-0.027	Neutral
Varity_R		0.12
gMVP		0.086
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs1666342242; hg19: chr1-28919149;