chr11-533545-G-T

Position:

• chr11-533545-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_005343.4(HRAS):​c.358C>A​(p.Leu120Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L120V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: HRAS NM_005343.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.95

Genes affected

HRAS (HGNC:5173): (HRas proto-oncogene, GTPase) This gene belongs to the Ras oncogene family, whose members are related to the transforming genes of mammalian sarcoma retroviruses. The products encoded by these genes function in signal transduction pathways. These proteins can bind GTP and GDP, and they have intrinsic GTPase activity. This protein undergoes a continuous cycle of de- and re-palmitoylation, which regulates its rapid exchange between the plasma membrane and the Golgi apparatus. Mutations in this gene cause Costello syndrome, a disease characterized by increased growth at the prenatal stage, growth deficiency at the postnatal stage, predisposition to tumor formation, cognitive disability, skin and musculoskeletal abnormalities, distinctive facial appearance and cardiovascular abnormalities. Defects in this gene are implicated in a variety of cancers, including bladder cancer, follicular thyroid cancer, and oral squamous cell carcinoma. Multiple transcript variants, which encode different isoforms, have been identified for this gene. [provided by RefSeq, Jul 2008]

LRRC56 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a chain GTPase HRas, N-terminally processed (size 184) in uniprot entity RASH_HUMAN there are 65 pathogenic changes around while only 17 benign (79%) in NM_005343.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.94

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HRAS	NM_005343.4	c.358C>A	p.Leu120Met	missense_variant	4/6	ENST00000311189.8
HRAS	NM_176795.5	c.358C>A	p.Leu120Met	missense_variant	4/6	ENST00000417302.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HRAS	ENST00000311189.8	c.358C>A	p.Leu120Met	missense_variant	4/6	1	NM_005343.4	P1
HRAS	ENST00000417302.7	c.358C>A	p.Leu120Met	missense_variant	4/6	5	NM_176795.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.43
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	-0.010
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.73	.;D;.;D;D
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Pathogenic	0.99	D
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.94	D;D;D;D;D
MetaSVM	Uncertain	-0.069	T
MutationAssessor	Uncertain	2.7	M;M;M;M;M
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-1.7	N;N;N;N;N
REVEL	Uncertain	0.64
Sift	Uncertain	0.0010	D;D;D;D;D
Sift4G	Uncertain	0.024	D;D;D;D;D
Polyphen		0.82	P;B;P;B;B
Vest4		0.81
MutPred		0.85		Gain of relative solvent accessibility (P = 0.1259);Gain of relative solvent accessibility (P = 0.1259);Gain of relative solvent accessibility (P = 0.1259);Gain of relative solvent accessibility (P = 0.1259);Gain of relative solvent accessibility (P = 0.1259);
MVP		0.77
MPC		1.8
ClinPred		0.98	D
GERP RS		3.2
Varity_R		0.90
gMVP		0.42

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: chr11-533545;