NM_000302.4:c.1427A>G

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_000302.4(PLOD1):​c.1427A>G​(p.Lys476Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000421 in 1,613,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. K476K) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.00024 ( 0 hom., cov: 31)
Exomes š‘“: 0.000021 ( 0 hom. )

Consequence

PLOD1
NM_000302.4 missense

Scores

2
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:2

Conservation

PhyloP100: 1.53
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.019618362).
BP6
Variant 1-11964742-A-G is Benign according to our data. Variant chr1-11964742-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 498773.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=5}. Variant chr1-11964742-A-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000243 (37/152374) while in subpopulation AFR AF= 0.000841 (35/41594). AF 95% confidence interval is 0.000621. There are 0 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLOD1NM_000302.4 linkc.1427A>G p.Lys476Arg missense_variant Exon 13 of 19 ENST00000196061.5 NP_000293.2 Q02809-1
PLOD1NM_001316320.2 linkc.1568A>G p.Lys523Arg missense_variant Exon 14 of 20 NP_001303249.1 Q02809-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLOD1ENST00000196061.5 linkc.1427A>G p.Lys476Arg missense_variant Exon 13 of 19 1 NM_000302.4 ENSP00000196061.4 Q02809-1
PLOD1ENST00000470133.1 linkn.41A>G non_coding_transcript_exon_variant Exon 1 of 3 3
PLOD1ENST00000491536.5 linkn.55A>G non_coding_transcript_exon_variant Exon 1 of 5 3

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152256
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000844
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000915
AC:
23
AN:
251264
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135884
show subpopulations
Gnomad AFR exome
AF:
0.00111
Gnomad AMR exome
AF:
0.000116
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000212
AC:
31
AN:
1461392
Hom.:
0
Cov.:
34
AF XY:
0.0000124
AC XY:
9
AN XY:
726998
show subpopulations
Gnomad4 AFR exome
AF:
0.000657
Gnomad4 AMR exome
AF:
0.000112
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.000243
AC:
37
AN:
152374
Hom.:
0
Cov.:
31
AF XY:
0.000242
AC XY:
18
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.000841
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.000287
ExAC
AF:
0.0000741
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jun 16, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Jan 05, 2017
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ehlers-Danlos syndrome, kyphoscoliotic type 1 Uncertain:1Benign:1
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 01, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1
Aug 24, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ehlers-Danlos syndrome Uncertain:1
Dec 01, 2019
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Familial thoracic aortic aneurysm and aortic dissection Benign:1
Nov 27, 2024
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.062
T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.21
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.0081
T
MetaRNN
Benign
0.020
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.82
L
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-1.0
N
REVEL
Benign
0.058
Sift
Benign
0.19
T
Sift4G
Benign
0.34
T
Polyphen
0.0010
B
Vest4
0.23
MVP
0.75
MPC
0.17
ClinPred
0.018
T
GERP RS
2.7
Varity_R
0.030
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs576907642; hg19: chr1-12024799; API