11-76660002-C-A

Variant names:

• chr11-76660002-C-A
• rs200260908
• NM_001128922.2:c.1591G>T

Variant summary

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

The NM_001128922.2(LRRC32):​c.1591G>T​(p.Ala531Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,614,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A531V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000062 (0 hom.)
• Consequence: LRRC32 NM_001128922.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.229
• Publications: 0 publications found

Genes affected

LRRC32 (HGNC:4161): (leucine rich repeat containing 32) This gene encodes a type I membrane protein which contains 20 leucine-rich repeats. Alterations in the chromosomal region 11q13-11q14 are involved in several pathologies. [provided by RefSeq, Jul 2008]

LRRC32 Gene-Disease associations (from GenCC):

• cleft palate, proliferative retinopathy, and developmental delay

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

LRRC32-AS1 (HGNC:58233):

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=0.19922432).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001128922.2. 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
	LRRC32	NM_001128922.2	MANE Select	c.1591G>T	p.Ala531Ser	missense	Exon 3 of 3	NP_001122394.1	Q14392
	LRRC32	NM_001370187.1		c.1591G>T	p.Ala531Ser	missense	Exon 3 of 4	NP_001357116.1	Q14392
	LRRC32	NM_001370188.1		c.1591G>T	p.Ala531Ser	missense	Exon 3 of 4	NP_001357117.1	Q14392

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRRC32	ENST00000260061.9	TSL:1 MANE Select	c.1591G>T	p.Ala531Ser	missense	Exon 3 of 3	ENSP00000260061.5	Q14392
	LRRC32	ENST00000407242.6	TSL:1	c.1591G>T	p.Ala531Ser	missense	Exon 3 of 3	ENSP00000384126.2	Q14392
	LRRC32-AS1	ENST00000447519.2	TSL:1	n.260+308C>A		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152214 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 250886 AF XY: 0.0000147

Gnomad AFR exome AF: 0.0000617

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000616 AC: 9 AN: 1461746 Hom.: 0 Cov.: 31 AF XY: 0.00000963 AC XY: 7 AN XY: 727180

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000447 AC: 2 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53368

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5700

European-Non Finnish (NFE) AF: 0.00000629 AC: 7 AN: 1112002

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152332 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74488

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000481 AC: 2 AN: 41570

American (AMR) AF: 0.00 AC: 0 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5176

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2116

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000203476), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000227

ExAC AF: 0.0000165 AC: 2

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	0.085
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.019	T
Eigen	Benign	-0.17
Eigen_PC	Benign	-0.21
FATHMM_MKL	Benign	0.20	N
LIST_S2	Benign	0.74	T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.090	N
PhyloP100		0.23
PrimateAI	Benign	0.31	T
PROVEAN	Benign	-0.040	N
REVEL	Benign	0.076
Sift	Benign	0.32	T
Sift4G	Benign	0.35	T
Polyphen		0.98	D
Vest4		0.18
MVP		0.85
MPC		0.21
ClinPred		0.15	T
GERP RS		3.3
Varity_R		0.048
gMVP		0.77
Mutation Taster		=84/16	polymorphism

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

Other links and lift over

dbSNP: rs200260908; hg19: chr11-76371046;