11-533799-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1 PM2 BP4_Moderate

The NM_005343.4(HRAS):c.257A>G(p.Asn86Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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. N86T) has been classified as Benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: HRAS NM_005343.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.10

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 Uncertain_significance. Variant got 2 ACMG points.

• PM1: In a chain GTPase HRas (size 185) in uniprot entity RASH_HUMAN there are 64 pathogenic changes around while only 17 benign (79%) in NM_005343.4
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1648519).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HRAS	NM_005343.4	c.257A>G	p.Asn86Ser	missense_variant	3/6	ENST00000311189.8
HRAS	NM_176795.5	c.257A>G	p.Asn86Ser	missense_variant	3/6	ENST00000417302.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HRAS	ENST00000311189.8	c.257A>G	p.Asn86Ser	missense_variant	3/6	1	NM_005343.4	P1
HRAS	ENST00000417302.7	c.257A>G	p.Asn86Ser	missense_variant	3/6	5	NM_176795.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.092
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
Cadd	Benign	17
Dann	Benign	0.85
Eigen	Benign	-0.55
Eigen_PC	Benign	-0.36
FATHMM_MKL	Uncertain	0.96	D
M_CAP	Benign	0.038	D
MetaRNN	Benign	0.16	T;T;T;T;T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	-0.62	N;N;N;N;N
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-1.3	N;N;N;N;N
REVEL	Benign	0.12
Sift	Benign	0.79	T;T;T;T;T
Sift4G	Benign	1.0	T;T;T;T;T
Polyphen		0.0010	B;B;B;B;B
Vest4		0.34
MutPred		0.32		Loss of ubiquitination at K88 (P = 0.0787);Loss of ubiquitination at K88 (P = 0.0787);Loss of ubiquitination at K88 (P = 0.0787);Loss of ubiquitination at K88 (P = 0.0787);Loss of ubiquitination at K88 (P = 0.0787);
MVP		0.62
MPC		0.79
ClinPred		0.27	T
GERP RS		3.6
Varity_R		0.31
gMVP		0.55

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: chr11-533799; COSMIC: COSV54239838; COSMIC: COSV54239838;