rs1048661

chr15-73927205-G-Achr15-73927205-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005576.4(LOXL1):c.422G>A(p.Arg141Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000695 in 1,439,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. R141L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: LOXL1 NM_005576.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.83

Genes affected

LOXL1 (HGNC:6665): (lysyl oxidase like 1) This gene encodes a member of the lysyl oxidase family of proteins. The prototypic member of the family is essential to the biogenesis of connective tissue, encoding an extracellular copper-dependent amine oxidase that catalyzes the first step in the formation of crosslinks in collagen and elastin. The encoded preproprotein is proteolytically processed to generate the mature enzyme. A highly conserved amino acid sequence at the C-terminus end appears to be sufficient for amine oxidase activity, suggesting that each family member may retain this function. The N-terminus is poorly conserved and may impart additional roles in developmental regulation, senescence, tumor suppression, cell growth control, and chemotaxis to each member of the family. Mutations in this gene are associated with exfoliation syndrome. [provided by RefSeq, Jan 2016]

LOXL1-AS1 (HGNC:44169): (LOXL1 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15081781).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LOXL1	NM_005576.4	c.422G>A	p.Arg141Gln	missense_variant	1/7	ENST00000261921.8
LOXL1-AS1	NR_040069.1	n.184+860C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LOXL1	ENST00000261921.8	c.422G>A	p.Arg141Gln	missense_variant	1/7	1	NM_005576.4	P1
LOXL1-AS1	ENST00000685373.1	n.198+572C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.95e-7 AC: 1 AN: 1439534 Hom.: 0 Cov.: 39 AF XY: 0.00 AC XY: 0 AN XY: 716566

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.04e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.62
CADD	Uncertain	25
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.093	T
Eigen	Benign	-0.052
Eigen_PC	Benign	0.061
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.79	T
M_CAP	Uncertain	0.15	D
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.97	L
MutationTaster	Benign	0.75	N
PrimateAI	Pathogenic	0.88	D
PROVEAN	Benign	-0.59	N
REVEL	Benign	0.056
Sift	Benign	0.073	T
Sift4G	Benign	0.50	T
Polyphen		0.28	B
Vest4		0.028
MutPred		0.21		Loss of methylation at R141 (P = 0.0102);
MVP		0.39
ClinPred		0.61	D
GERP RS		4.1
Varity_R		0.22
gMVP		0.29

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

LitVar

Other links and lift over

dbSNP: rs1048661; hg19: chr15-74219546;