1-11957876-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_000302.4(PLOD1):c.776G>A(p.Arg259His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000155 in 1,613,976 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R259C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00070 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000098 ( 0 hom. )

Consequence

PLOD1
NM_000302.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 2.86

Publications

3 publications found

Variant links:

Genes affected

PLOD1 (HGNC:9081): (procollagen-lysine,2-oxoglutarate 5-dioxygenase 1) Lysyl hydroxylase is a membrane-bound homodimeric protein localized to the cisternae of the endoplasmic reticulum. The enzyme (cofactors iron and ascorbate) catalyzes the hydroxylation of lysyl residues in collagen-like peptides. The resultant hydroxylysyl groups are attachment sites for carbohydrates in collagen and thus are critical for the stability of intermolecular crosslinks. Some patients with Ehlers-Danlos syndrome type VI have deficiencies in lysyl hydroxylase activity. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

PLOD1 Gene-Disease associations (from GenCC):

Ehlers-Danlos syndrome, kyphoscoliotic type 1
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet, PanelApp Australia, G2P

PLOD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.0141785145).

BP6

Variant 1-11957876-G-A is Benign according to our data. Variant chr1-11957876-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 459826.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000703 (107/152132) while in subpopulation AFR AF = 0.00234 (97/41420). AF 95% confidence interval is 0.00196. There are 0 homozygotes in GnomAd4. There are 53 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLOD1	NM_000302.4 link	c.776G>A	p.Arg259His	missense_variant	Exon 8 of 19	ENST00000196061.5	NP_000293.2	Q02809-1
PLOD1	NM_001316320.2 link	c.917G>A	p.Arg306His	missense_variant	Exon 9 of 20		NP_001303249.1	Q02809-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PLOD1	ENST00000196061.5 link	c.776G>A	p.Arg259His	missense_variant	Exon 8 of 19	1	NM_000302.4	ENSP00000196061.4	Q02809-1
PLOD1	ENST00000429000.6 link	c.782G>A	p.Arg261His	missense_variant	Exon 8 of 8	5		ENSP00000405372.1	Q5JXB7
PLOD1	ENST00000465920.1 link	n.726G>A		non_coding_transcript_exon_variant	Exon 3 of 4	5
PLOD1	ENST00000485046.5 link	n.819G>A		non_coding_transcript_exon_variant	Exon 8 of 9	5

Frequencies

GnomAD3 genomes

AF:

0.000703

AC:

107

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00234

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.000199

AC:

AN:

251478

AF XY:

0.000147

show subpopulations

Gnomad AFR exome

AF:

0.00258

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000978

AC:

143

AN:

1461844

Hom.:

Cov.:

AF XY:

0.0000839

AC XY:

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.00239

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000104

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000252

AC:

AN:

1111972

Other (OTH)

AF:

0.000397

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

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:

0.000703

AC:

107

AN:

152132

Hom.:

Cov.:

AF XY:

0.000713

AC XY:

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.00234

AC:

AN:

41420

American (AMR)

AF:

0.000131

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00316

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68008

Other (OTH)

AF:

0.00143

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

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:

0.000278

Hom.:

Bravo

AF:

0.000945

ESP6500AA

AF:

0.00227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000214

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Jul 26, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.R259H variant (also known as c.776G>A), located in coding exon 8 of the PLOD1 gene, results from a G to A substitution at nucleotide position 776. The arginine at codon 259 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. 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. -

PLOD1-related disorder

Benign:1

Jan 17, 2023

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

May 28, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Reported in ClinVar but additional evidence is not available (ClinVar Variant ID# 459826; Landrum et al., 2016) -

Ehlers-Danlos syndrome, kyphoscoliotic type 1

Benign:1

Jan 16, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.29

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.017

T;T

Eigen

Benign

-0.048

Eigen_PC

Benign

0.089

FATHMM_MKL

Benign

0.67

LIST_S2

Uncertain

0.91

D;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.014

T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.1

.;L

PhyloP100

2.9

PrimateAI

Benign

0.47

PROVEAN

Benign

0.11

N;N

REVEL

Benign

0.12

Sift

Benign

0.11

T;T

Sift4G

Benign

0.10

T;T

Polyphen

0.0010

.;B

Vest4

0.45

MVP

0.82

MPC

0.26

ClinPred

0.022

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.035

gMVP

0.64

Mutation Taster

=80/20

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over