chr3-3845092-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_020873.7(LRRN1):ā€‹c.451A>Cā€‹(p.Asn151His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,856 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

LRRN1
NM_020873.7 missense

Scores

5
8
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.25
Variant links:
Genes affected
LRRN1 (HGNC:20980): (leucine rich repeat neuronal 1) Predicted to act upstream of or within positive regulation of synapse assembly. Predicted to be integral component of membrane. Predicted to be active in extracellular matrix and extracellular space. [provided by Alliance of Genome Resources, Apr 2022]
SUMF1 (HGNC:20376): (sulfatase modifying factor 1) This gene encodes an enzyme that catalyzes the hydrolysis of sulfate esters by oxidizing a cysteine residue in the substrate sulfatase to an active site 3-oxoalanine residue, which is also known as C-alpha-formylglycine. Mutations in this gene cause multiple sulfatase deficiency, a lysosomal storage disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.828

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LRRN1NM_020873.7 linkuse as main transcriptc.451A>C p.Asn151His missense_variant 2/2 ENST00000319331.4 NP_065924.3
LRRN1NM_001324188.2 linkuse as main transcriptc.451A>C p.Asn151His missense_variant 3/3 NP_001311117.1
LRRN1NM_001324189.2 linkuse as main transcriptc.451A>C p.Asn151His missense_variant 3/3 NP_001311118.1
LRRN1XM_047448644.1 linkuse as main transcriptc.451A>C p.Asn151His missense_variant 2/2 XP_047304600.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LRRN1ENST00000319331.4 linkuse as main transcriptc.451A>C p.Asn151His missense_variant 2/21 NM_020873.7 ENSP00000314901 P1
SUMF1ENST00000448413.5 linkuse as main transcriptc.1192-17583T>G intron_variant, NMD_transcript_variant 2 ENSP00000404384

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461856
Hom.:
0
Cov.:
75
AF XY:
0.00000138
AC XY:
1
AN XY:
727234
show subpopulations
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 09, 2022The c.451A>C (p.N151H) alteration is located in exon 2 (coding exon 1) of the LRRN1 gene. This alteration results from a A to C substitution at nucleotide position 451, causing the asparagine (N) at amino acid position 151 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Uncertain
0.041
T
BayesDel_noAF
Benign
-0.18
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T
Eigen
Uncertain
0.63
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Benign
0.070
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Benign
-0.69
T
MutationAssessor
Benign
1.2
L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.47
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.011
D
Polyphen
1.0
D
Vest4
0.84
MutPred
0.53
Loss of stability (P = 0.0294);
MVP
0.45
MPC
0.75
ClinPred
0.96
D
GERP RS
5.8
Varity_R
0.72
gMVP
0.70

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs762549069; hg19: chr3-3886776; API