rs759042440

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP2PP3

The NM_000093.5(COL5A1):c.5314G>A(p.Glu1772Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

COL5A1
NM_000093.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 7.80

Variant links:

Genes affected

COL5A1 (HGNC:2209): (collagen type V alpha 1 chain) This gene encodes an alpha chain for one of the low abundance fibrillar collagens. Fibrillar collagen molecules are trimers that can be composed of one or more types of alpha chains. Type V collagen is found in tissues containing type I collagen and appears to regulate the assembly of heterotypic fibers composed of both type I and type V collagen. This gene product is closely related to type XI collagen and it is possible that the collagen chains of types V and XI constitute a single collagen type with tissue-specific chain combinations. The encoded procollagen protein occurs commonly as the heterotrimer pro-alpha1(V)-pro-alpha1(V)-pro-alpha2(V). Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]

COL5A1 links:

LOC101448202 (HGNC:):

LOC101448202 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PP2

Missense variant where missense usually causes diseases, COL5A1

PP3

MetaRNN computational evidence supports a deleterious effect, 0.772

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
COL5A1	NM_000093.5 linkuse as main transcript	c.5314G>A	p.Glu1772Lys	missense_variant	65/66	ENST00000371817.8
LOC101448202	NR_103451.2 linkuse as main transcript	n.71-14939C>T		intron_variant, non_coding_transcript_variant
COL5A1	NM_001278074.1 linkuse as main transcript	c.5314G>A	p.Glu1772Lys	missense_variant	65/66

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL5A1	ENST00000371817.8 linkuse as main transcript	c.5314G>A	p.Glu1772Lys	missense_variant	65/66	1	NM_000093.5	P4	P20908-1
COL5A1	ENST00000371820.4 linkuse as main transcript	c.5314G>A	p.Glu1772Lys	missense_variant	65/66	2		A2	P20908-2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461472

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727066

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000189

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Oct 03, 2022	Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not located in the triple helical region, where the majority of pathogenic missense variants occur (Symoens et al., 2012; HGMD); Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 22696272) -
Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Nov 12, 2020	- -

Scoliosis;C0410528:Skeletal dysplasia;C0426790:Narrow chest;C1096086:Abnormality of the lower limb;C1849075:Relative macrocephaly;C5702564:Neuropathic spinal arthropathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Centre for Mendelian Genomics, University Medical Centre Ljubljana

Jan 01, 2017

- -

Ehlers-Danlos syndrome, classic type, 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Apr 16, 2023

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on COL5A1 protein function. ClinVar contains an entry for this variant (Variation ID: 523327). This variant has not been reported in the literature in individuals affected with COL5A1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 1772 of the COL5A1 protein (p.Glu1772Lys). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.58

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Uncertain

0.13

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.57

D;.

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D

M_CAP

Uncertain

0.10

MetaRNN

Pathogenic

0.77

D;D

MetaSVM

Uncertain

-0.22

MutationAssessor

Pathogenic

3.1

M;M

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.77

PROVEAN

Uncertain

-3.3

D;.

REVEL

Pathogenic

0.66

Sift

Uncertain

0.0070

D;.

Sift4G

Benign

0.34

T;T

Polyphen

1.0

D;.

Vest4

0.78

MutPred

0.55

Gain of ubiquitination at E1772 (P = 0.0198);Gain of ubiquitination at E1772 (P = 0.0198);

MVP

0.80

MPC

0.33

ClinPred

0.98

GERP RS

5.0

Varity_R

0.77

gMVP

0.72

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.

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