Genetic Variant LCAT:p.Pro34Pro (chr16-67944000-C-T) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The NM_000229.2(LCAT):c.102G>A(p.Pro34Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00002 in 1,547,834 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

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

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

LCAT
NM_000229.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.777

Publications

1 publications found

Variant links:

Genes affected

LCAT (HGNC:6522): (lecithin-cholesterol acyltransferase) This gene encodes the extracellular cholesterol esterifying enzyme, lecithin-cholesterol acyltransferase. The esterification of cholesterol is required for cholesterol transport. Mutations in this gene have been found to cause fish-eye disease as well as LCAT deficiency. [provided by RefSeq, Jul 2008]

LCAT links:

SLC12A4 (HGNC:10913): (solute carrier family 12 member 4) This gene encodes a member of the SLC12A transporter family. The encoded protein mediates the coupled movement of potassium and chloride ions across the plasma membrane. This gene is expressed ubiquitously. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jan 2013]

SLC12A4 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.35).

BP6

Variant 16-67944000-C-T is Benign according to our data. Variant chr16-67944000-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 725761.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.777 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000229.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LCAT	NM_000229.2	MANE Select	c.102G>A	p.Pro34Pro	synonymous	Exon 1 of 6	NP_000220.1	P04180
SLC12A4	NM_005072.5	MANE Select	c.*840G>A		3_prime_UTR	Exon 24 of 24	NP_005063.1	Q9UP95-1
SLC12A4	NM_001145962.1		c.*840G>A		3_prime_UTR	Exon 23 of 23	NP_001139434.1	Q9UP95-7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LCAT	ENST00000264005.10	TSL:1 MANE Select	c.102G>A	p.Pro34Pro	synonymous	Exon 1 of 6	ENSP00000264005.5	P04180
SLC12A4	ENST00000316341.8	TSL:1 MANE Select	c.*840G>A		3_prime_UTR	Exon 24 of 24	ENSP00000318557.3	Q9UP95-1
LCAT	ENST00000575467.5	TSL:5	n.102G>A		non_coding_transcript_exon	Exon 1 of 6	ENSP00000460653.1	I3L3R0

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151956

Hom.:

Cov.:

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

GnomAD2 exomes

AF:

0.0000130

AC:

AN:

153304

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000407

Gnomad ASJ exome

AF:

0.000119

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000208

AC:

AN:

1395878

Hom.:

Cov.:

AF XY:

0.0000232

AC XY:

AN XY:

688292

show subpopulations

African (AFR)

AF:

0.0000317

AC:

AN:

31548

American (AMR)

AF:

0.0000281

AC:

AN:

35582

Ashkenazi Jewish (ASJ)

AF:

0.0000399

AC:

AN:

25090

East Asian (EAS)

AF:

0.0000561

AC:

AN:

35682

South Asian (SAS)

AF:

0.0000253

AC:

AN:

78984

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48560

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4982

European-Non Finnish (NFE)

AF:

0.0000121

AC:

AN:

1077658

Other (OTH)

AF:

0.000156

AC:

AN:

57792

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151956

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74194

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41336

American (AMR)

AF:

0.00

AC:

AN:

15264

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67972

Other (OTH)

AF:

0.00

AC:

AN:

2084

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cardiovascular phenotype (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Benign

0.92

PhyloP100

0.78

PromoterAI

0.025

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over