Genetic Variant LCN6:p.Leu107Ile (chr9-136745263-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_198946.3(LCN6):c.319C>A(p.Leu107Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000265 in 1,612,948 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

LCN6
NM_198946.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0690

Variant links:

Genes affected

LCN6 (HGNC:17337): (lipocalin 6) Predicted to enable small molecule binding activity. Predicted to be involved in single fertilization. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

LCN6 links:

ENSG00000204003 (HGNC:):

ENSG00000204003 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0073781908).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LCN6	NM_198946.3 link	c.319C>A	p.Leu107Ile	missense_variant	Exon 4 of 7	ENST00000341206.9	NP_945184.1	P62502A0A024R8I9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LCN6	ENST00000341206.9 link	c.319C>A	p.Leu107Ile	missense_variant	Exon 4 of 7	1	NM_198946.3	ENSP00000339621.3		P62502
ENSG00000204003	ENST00000435202.5 link	n.289C>A		non_coding_transcript_exon_variant	Exon 4 of 11	2		ENSP00000399627.1		H7C1C5

Frequencies

GnomAD3 genomes

AF:

0.000223

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000367

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000483

AC:

121

AN:

250742

Hom.:

AF XY:

0.000479

AC XY:

AN XY:

135794

show subpopulations

Gnomad AFR exome

AF:

0.0000618

Gnomad AMR exome

AF:

0.000550

Gnomad ASJ exome

AF:

0.00319

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000521

Gnomad OTH exome

AF:

0.000817

GnomAD4 exome

AF:

0.000270

AC:

394

AN:

1460650

Hom.:

Cov.:

AF XY:

0.000260

AC XY:

189

AN XY:

726678

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000559

Gnomad4 ASJ exome

AF:

0.00306

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000174

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000220

Gnomad4 OTH exome

AF:

0.000381

GnomAD4 genome

AF:

0.000223

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00173

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000368

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000540

Hom.:

Bravo

AF:

0.000348

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000420

AC:

EpiCase

AF:

0.000491

EpiControl

AF:

0.000889

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 01, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.319C>A (p.L107I) alteration is located in exon 4 (coding exon 4) of the LCN6 gene. This alteration results from a C to A substitution at nucleotide position 319, causing the leucine (L) at amino acid position 107 to be replaced by an isoleucine (I). 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

Benign

0.11

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Benign

0.72

DEOGEN2

Benign

0.0032

T;.

Eigen

Benign

-0.95

Eigen_PC

Benign

-0.94

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.50

T;T

M_CAP

Benign

0.0038

MetaRNN

Benign

0.0074

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

0.69

N;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

0.83

N;.

REVEL

Benign

0.045

Sift

Benign

0.64

T;.

Sift4G

Uncertain

0.031

D;D

Polyphen

0.13

B;.

Vest4

0.22

MVP

0.088

MPC

0.073

ClinPred

0.0090

GERP RS

0.50

Varity_R

0.037

gMVP

0.50

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

Publications

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over