17-40190704-A-G

Position:

• chr17-40190704-A-G

Variant summary

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

The ENST00000620260.6(RAPGEFL1):​c.1277A>G​(p.Glu426Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: RAPGEFL1 ENST00000620260.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.74

Genes affected

RAPGEFL1 (HGNC:17428): (Rap guanine nucleotide exchange factor like 1) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in G protein-coupled receptor signaling pathway and nervous system development. Predicted to be located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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
RAPGEFL1	NM_016339.6	c.1277A>G	p.Glu426Gly	missense_variant	8/15	ENST00000620260.6	NP_057423.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAPGEFL1	ENST00000620260.6	c.1277A>G	p.Glu426Gly	missense_variant	8/15	1	NM_016339.6	ENSP00000479735	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 22, 2023

The c.659A>G (p.E220G) alteration is located in exon 8 (coding exon 6) of the RAPGEFL1 gene. This alteration results from a A to G substitution at nucleotide position 659, causing the glutamic acid (E) at amino acid position 220 to be replaced by a glycine (G). 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	0.29
BayesDel_addAF	Uncertain	0.046	T
BayesDel_noAF	Benign	-0.17
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.061	.;T;.;T
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.55
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.86	D;D;D;D
M_CAP	Benign	0.028	D
MetaRNN	Uncertain	0.46	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-2.0	N;N;.;.
REVEL	Benign	0.24
Sift	Uncertain	0.026	D;D;.;.
Sift4G	Benign	0.11	T;T;T;D
Vest4		0.69
MutPred		0.46		.;.;.;Loss of disorder (P = 0.0897);
MVP		0.043
ClinPred		0.96	D
GERP RS		4.7
gMVP		0.69

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-38346956;