1-74026949-C-A

Variant names:

• chr1-74026949-C-A
• rs200301604
• NM_001105659.2:c.1739G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001105659.2(LRRIQ3):​c.1739G>T​(p.Arg580Ile) 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. 13/17 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. R580K) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: LRRIQ3 NM_001105659.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.135
• Publications: 0 publications found

Genes affected

LRRIQ3 (HGNC:28318): (leucine rich repeats and IQ motif containing 3)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1316576).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRRIQ3	NM_001105659.2	c.1739G>T	p.Arg580Ile	missense_variant	Exon 8 of 8	ENST00000354431.9	NP_001099129.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRRIQ3	ENST00000354431.9	c.1739G>T	p.Arg580Ile	missense_variant	Exon 8 of 8	5	NM_001105659.2	ENSP00000346414.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.56
CADD	Benign	16
DANN	Benign	0.50
Eigen	Benign	-0.83
Eigen_PC	Benign	-0.91
FATHMM_MKL	Benign	0.13	N
LIST_S2	Benign	0.32	T
M_CAP	Benign	0.031	D
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.98	T
PhyloP100		-0.14
PROVEAN	Pathogenic	-5.5	D
REVEL	Benign	0.072
Sift	Pathogenic	0.0	D
MutPred		0.36		Gain of methylation at K47 (P = 0.0657);
MVP		0.13
ClinPred		0.51	D
GERP RS		-1.2
Varity_R		0.082
Mutation Taster		=98/2	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs200301604; hg19: chr1-74492633; COSMIC: COSV63041866;