rs73978832

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000393.5(COL5A2):​c.1006-9C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0201 in 1,608,904 control chromosomes in the GnomAD database, including 415 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 24 hom., cov: 32)
Exomes 𝑓: 0.021 ( 391 hom. )

Consequence

COL5A2
NM_000393.5 intron

Scores

2
Splicing: ADA: 0.00002179
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -1.16
Variant links:
Genes affected
COL5A2 (HGNC:2210): (collagen type V alpha 2 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. Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 2-189078578-G-A is Benign according to our data. Variant chr2-189078578-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 136933.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-189078578-G-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0154 (2348/152150) while in subpopulation NFE AF= 0.02 (1363/67996). AF 95% confidence interval is 0.0192. There are 24 homozygotes in gnomad4. There are 1156 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 2348 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL5A2NM_000393.5 linkc.1006-9C>T intron_variant Intron 15 of 53 ENST00000374866.9 NP_000384.2 P05997
COL5A2XM_011510573.4 linkc.868-9C>T intron_variant Intron 18 of 56 XP_011508875.1
COL5A2XM_047443251.1 linkc.868-9C>T intron_variant Intron 20 of 58 XP_047299207.1
COL5A2XM_047443252.1 linkc.868-9C>T intron_variant Intron 19 of 57 XP_047299208.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL5A2ENST00000374866.9 linkc.1006-9C>T intron_variant Intron 15 of 53 1 NM_000393.5 ENSP00000364000.3 P05997
COL5A2ENST00000618828.1 linkc.358+502C>T intron_variant Intron 15 of 46 5 ENSP00000482184.1 A0A087WYX9

Frequencies

GnomAD3 genomes
AF:
0.0155
AC:
2351
AN:
152032
Hom.:
24
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00396
Gnomad AMI
AF:
0.105
Gnomad AMR
AF:
0.0119
Gnomad ASJ
AF:
0.0234
Gnomad EAS
AF:
0.00270
Gnomad SAS
AF:
0.0139
Gnomad FIN
AF:
0.0324
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.0201
Gnomad OTH
AF:
0.0182
GnomAD3 exomes
AF:
0.0171
AC:
4305
AN:
251310
Hom.:
67
AF XY:
0.0176
AC XY:
2396
AN XY:
135816
show subpopulations
Gnomad AFR exome
AF:
0.00412
Gnomad AMR exome
AF:
0.00999
Gnomad ASJ exome
AF:
0.0266
Gnomad EAS exome
AF:
0.000326
Gnomad SAS exome
AF:
0.0125
Gnomad FIN exome
AF:
0.0325
Gnomad NFE exome
AF:
0.0214
Gnomad OTH exome
AF:
0.0171
GnomAD4 exome
AF:
0.0206
AC:
30032
AN:
1456754
Hom.:
391
Cov.:
30
AF XY:
0.0205
AC XY:
14840
AN XY:
724970
show subpopulations
Gnomad4 AFR exome
AF:
0.00327
Gnomad4 AMR exome
AF:
0.0113
Gnomad4 ASJ exome
AF:
0.0276
Gnomad4 EAS exome
AF:
0.00388
Gnomad4 SAS exome
AF:
0.0135
Gnomad4 FIN exome
AF:
0.0299
Gnomad4 NFE exome
AF:
0.0222
Gnomad4 OTH exome
AF:
0.0184
GnomAD4 genome
AF:
0.0154
AC:
2348
AN:
152150
Hom.:
24
Cov.:
32
AF XY:
0.0155
AC XY:
1156
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00395
Gnomad4 AMR
AF:
0.0118
Gnomad4 ASJ
AF:
0.0234
Gnomad4 EAS
AF:
0.00271
Gnomad4 SAS
AF:
0.0137
Gnomad4 FIN
AF:
0.0324
Gnomad4 NFE
AF:
0.0200
Gnomad4 OTH
AF:
0.0180
Alfa
AF:
0.0183
Hom.:
8
Bravo
AF:
0.0143
Asia WGS
AF:
0.00289
AC:
10
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
Dec 11, 2012
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Jul 21, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ehlers-Danlos syndrome, classic type, 2 Benign:2
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Nov 27, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ehlers-Danlos syndrome type 7A Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ehlers-Danlos syndrome Benign:1
Jul 16, 2022
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Ehlers-Danlos syndrome, classic type, 1 Benign:1
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
2.8
DANN
Benign
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000022
dbscSNV1_RF
Benign
0.0
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.

Other links and lift over

dbSNP: rs73978832; hg19: chr2-189943304; COSMIC: COSV104425976; API