chr21-44456778-C-T

Variant names:

• chr21-44456778-C-T
• rs2051704533
• NM_030891.6:c.134C>T

Variant summary

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

The NM_030891.6(LRRC3):​c.134C>T​(p.Ala45Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,458,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: LRRC3 NM_030891.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0620
• Publications: 0 publications found

Genes affected

LRRC3 (HGNC:14965): (leucine rich repeat containing 3) Predicted to be integral component of membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

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=0.12787732).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030891.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRRC3	NM_030891.6	MANE Select	c.134C>T	p.Ala45Val	missense	Exon 2 of 2	NP_112153.1	Q9BY71

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRRC3	ENST00000291592.6	TSL:1 MANE Select	c.134C>T	p.Ala45Val	missense	Exon 2 of 2	ENSP00000291592.4	Q9BY71
	LRRC3	ENST00000885220.1		c.134C>T	p.Ala45Val	missense	Exon 2 of 2	ENSP00000555279.1
	LRRC3	ENST00000885221.1		c.134C>T	p.Ala45Val	missense	Exon 2 of 2	ENSP00000555280.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1458824 Hom.: 0 Cov.: 31 AF XY: 0.00000276 AC XY: 2 AN XY: 725878

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44704

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26110

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50616

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111862

Other (OTH) AF: 0.00 AC: 0 AN: 60354

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.061	T
BayesDel_noAF	Benign	-0.33
CADD	Benign	9.0
DANN	Benign	0.72
DEOGEN2	Benign	0.33	T
Eigen	Benign	-0.87
Eigen_PC	Benign	-0.87
FATHMM_MKL	Benign	0.13	N
LIST_S2	Benign	0.47	T
M_CAP	Benign	0.049	D
MetaRNN	Benign	0.13	T
MetaSVM	Uncertain	-0.081	T
MutationAssessor	Benign	0.86	L
PhyloP100		-0.062
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.70	N
REVEL	Benign	0.24
Sift	Benign	0.54	T
Sift4G	Benign	0.61	T
Polyphen		0.0020	B
Vest4		0.052
MutPred		0.71		Gain of sheet (P = 0.1208)
MVP		0.91
MPC		0.26
ClinPred		0.073	T
GERP RS		2.0
Varity_R		0.070
gMVP		0.43
Mutation Taster		=89/11	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs2051704533; hg19: chr21-45876661;