10-88669944-T-C

Variant summary

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

The NM_004190.4(LIPF):c.530T>C(p.Ile177Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000506 in 1,602,112 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

LIPF
NM_004190.4 missense, splice_region

Scores

Splicing: ADA: 0.02110

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.56

Variant links:

Genes affected

LIPF (HGNC:6622): (lipase F, gastric type) This gene encodes gastric lipase, an enzyme involved in the digestion of dietary triglycerides in the gastrointestinal tract, and responsible for 30% of fat digestion processes occurring in human. It is secreted by gastric chief cells in the fundic mucosa of the stomach, and it hydrolyzes the ester bonds of triglycerides under acidic pH conditions. The gene is a member of a conserved gene family of lipases that play distinct roles in neutral lipid metabolism. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2010]

LIPF links:

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	UniProt
LIPF	NM_004190.4 linkuse as main transcript	c.530T>C	p.Ile177Thr	missense_variant, splice_region_variant	5/10	ENST00000238983.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LIPF	ENST00000238983.9 linkuse as main transcript	c.530T>C	p.Ile177Thr	missense_variant, splice_region_variant	5/10	1	NM_004190.4	P1	P07098-1
LIPF	ENST00000355843.2 linkuse as main transcript	c.461T>C	p.Ile154Thr	missense_variant, splice_region_variant	6/11	1			P07098-4
LIPF	ENST00000394375.7 linkuse as main transcript	c.560T>C	p.Ile187Thr	missense_variant, splice_region_variant	6/11	2			P07098-3
LIPF	ENST00000608620.5 linkuse as main transcript	c.431T>C	p.Ile144Thr	missense_variant, splice_region_variant	5/10	2			P07098-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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

GnomAD3 exomes

AF:

0.0000281

AC:

AN:

248960

Hom.:

AF XY:

0.0000223

AC XY:

AN XY:

134500

show subpopulations

Gnomad AFR exome

AF:

0.000123

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:

0.0000442

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000545

AC:

AN:

1449898

Hom.:

Cov.:

AF XY:

0.0000554

AC XY:

AN XY:

721840

show subpopulations

Gnomad4 AFR exome

AF:

0.0000602

Gnomad4 AMR exome

AF:

0.0000226

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:

0.0000662

Gnomad4 OTH exome

AF:

0.0000500

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000547

EpiControl

AF:

0.0000594

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 submitter

clinical testing

Ambry Genetics

Oct 17, 2023

The c.560T>C (p.I187T) alteration is located in exon 6 (coding exon 5) of the LIPF gene. This alteration results from a T to C substitution at nucleotide position 560, causing the isoleucine (I) at amino acid position 187 to be replaced by a threonine (T). 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

0.21

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.26

Cadd

Benign

Dann

Uncertain

1.0

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.75

T;T;T;T

M_CAP

Benign

0.055

MetaRNN

Uncertain

0.52

D;D;D;D

MetaSVM

Benign

-0.61

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.48

PROVEAN

Uncertain

-4.3

D;.;D;.

REVEL

Uncertain

0.41

Sift

Benign

0.030

D;.;D;.

Sift4G

Benign

0.063

T;T;T;T

Polyphen

0.99

.;.;D;.

Vest4

0.49

MutPred

0.77

.;.;Gain of disorder (P = 0.0283);.;

MVP

0.85

MPC

0.65

ClinPred

0.42

GERP RS

4.6

Varity_R

0.64

gMVP

0.87

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.021

dbscSNV1_RF

Benign

0.29

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.

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