3-50331426-C-G

Position:

• chr3-50331426-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_007182.5(RASSF1):​c.784G>C​(p.Asp262His) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: RASSF1 NM_007182.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.38

Genes affected

RASSF1 (HGNC:9882): (Ras association domain family member 1) This gene encodes a protein similar to the RAS effector proteins. Loss or altered expression of this gene has been associated with the pathogenesis of a variety of cancers, which suggests the tumor suppressor function of this gene. The inactivation of this gene was found to be correlated with the hypermethylation of its CpG-island promoter region. The encoded protein was found to interact with DNA repair protein XPA. The protein was also shown to inhibit the accumulation of cyclin D1, and thus induce cell cycle arrest. Several alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported. [provided by RefSeq, May 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30138478).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RASSF1	NM_007182.5	c.784G>C	p.Asp262His	missense_variant	5/6	ENST00000359365.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RASSF1	ENST00000359365.9	c.784G>C	p.Asp262His	missense_variant	5/6	1	NM_007182.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

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

Oct 26, 2021

The c.784G>C (p.D262H) alteration is located in exon 5 (coding exon 5) of the RASSF1 gene. This alteration results from a G to C substitution at nucleotide position 784, causing the aspartic acid (D) at amino acid position 262 to be replaced by a histidine (H). 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	0.13
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Uncertain	24
DANN	Uncertain	0.99
Eigen	Uncertain	0.25
Eigen_PC	Uncertain	0.32
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.84	T;T;.;T;T
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.30	T;T;T;T;T
MetaSVM	Benign	-0.80	T
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-2.9	D;.;D;D;D
REVEL	Benign	0.17
Sift	Benign	0.11	T;.;T;D;D
Sift4G	Benign	0.59	T;T;T;T;T
Polyphen		0.59, 0.39	.;.;.;P;B
Vest4		0.32
MutPred		0.53		.;.;.;Loss of solvent accessibility (P = 0.0509);.;
MVP		0.55
MPC		1.0
ClinPred		0.90	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.17
gMVP		0.56

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: chr3-50368857;