9-137169282-A-C

Position:

• chr9-137169282-A-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The ENST00000371542.3(LRRC26):​c.662T>G​(p.Leu221Arg) 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 34)
• Consequence: LRRC26 ENST00000371542.3 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.23

Genes affected

LRRC26 (HGNC:31409): (leucine rich repeat containing 26) Enables potassium channel activator activity; transmembrane transporter binding activity; and voltage-gated potassium channel activity. Involved in positive regulation of voltage-gated potassium channel activity and potassium ion transmembrane transport. Is integral component of plasma membrane. Part of voltage-gated potassium channel complex. [provided by Alliance of Genome Resources, Apr 2022]

MIR3621 (HGNC:38930): (microRNA 3621) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.052239984).
• BP6: Variant 9-137169282-A-C is Benign according to our data. Variant chr9-137169282-A-C is described in ClinVar as [Likely_benign]. Clinvar id is 2261066.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRRC26	NM_001013653.3	c.662T>G	p.Leu221Arg	missense_variant	1/2	ENST00000371542.3	NP_001013675.1
MIR3621	NR_037416.1			upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRRC26	ENST00000371542.3	c.662T>G	p.Leu221Arg	missense_variant	1/2	1	NM_001013653.3	ENSP00000360597	P1
MIR3621	ENST00000580529.1			upstream_gene_variant

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 34

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 15, 2021

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.058
BayesDel_addAF	Benign	-0.45	T
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.65
DANN	Benign	0.58
DEOGEN2	Benign	0.0040	T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.015	N
LIST_S2	Benign	0.34	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.052	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	-0.97	N
MutationTaster	Benign	1.0	N
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	0.20	N
REVEL	Benign	0.012
Sift	Benign	0.68	T
Sift4G	Benign	1.0	T
Polyphen		0.0010	B
Vest4		0.063
MutPred		0.45		Gain of MoRF binding (P = 0.0239);
MVP		0.067
MPC		0.81
ClinPred		0.053	T
GERP RS		-3.5
Varity_R		0.045
gMVP		0.44

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: chr9-140063734;