16-854561-G-A

Variant summary

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

The NM_022773.4(LMF1):​c.1675C>T​(p.Arg559Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,608,272 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. R559R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

LMF1
NM_022773.4 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.650
Variant links:
Genes affected
LMF1 (HGNC:14154): (lipase maturation factor 1) Involved in triglyceride metabolic process. Predicted to be integral component of membrane. Predicted to be active in endoplasmic reticulum membrane. Implicated in familial lipase maturation factor 1 deficiency. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LMF1NM_022773.4 linkuse as main transcriptc.1675C>T p.Arg559Cys missense_variant 11/11 ENST00000262301.16 NP_073610.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LMF1ENST00000262301.16 linkuse as main transcriptc.1675C>T p.Arg559Cys missense_variant 11/115 NM_022773.4 ENSP00000262301 P1Q96S06-1
ENST00000655150.1 linkuse as main transcriptn.632-6471G>A intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152052
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000212
AC:
5
AN:
236150
Hom.:
0
AF XY:
0.0000308
AC XY:
4
AN XY:
129774
show subpopulations
Gnomad AFR exome
AF:
0.000139
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000284
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000117
AC:
17
AN:
1456100
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
724256
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
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:
0.0000126
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152172
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.000255
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000333
AC:
4

ClinVar

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

Submissions by phenotype

Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 04, 2022The p.R559C variant (also known as c.1675C>T), located in coding exon 11 of the LMF1 gene, results from a C to T substitution at nucleotide position 1675. The arginine at codon 559 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.46
T;.;.
Eigen
Benign
0.0041
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.83
T;T;T
M_CAP
Uncertain
0.19
D
MetaRNN
Uncertain
0.58
D;D;D
MetaSVM
Benign
-0.88
T
MutationAssessor
Pathogenic
2.9
M;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-3.8
D;D;D
REVEL
Benign
0.18
Sift
Uncertain
0.020
D;D;D
Sift4G
Uncertain
0.018
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.59
MVP
0.46
MPC
0.16
ClinPred
0.95
D
GERP RS
2.1
Varity_R
0.40
gMVP
0.75

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: rs199544373; hg19: chr16-904561; API