rs138457003

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_000393.5(COL5A2):​c.2334C>T​(p.Asp778Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000544 in 1,083,642 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 0.0000075 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000061 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.768

Publications

0 publications found
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]
COL5A2 Gene-Disease associations (from GenCC):
  • Ehlers-Danlos syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • Ehlers-Danlos syndrome, classic type
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Ehlers-Danlos syndrome, classic type, 2
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 2-189057323-G-A is Benign according to our data. Variant chr2-189057323-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 459735.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.768 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.000061 (58/950646) while in subpopulation NFE AF = 0.0000804 (53/659450). AF 95% confidence interval is 0.0000627. There are 0 homozygotes in GnomAdExome4. There are 28 alleles in the male GnomAdExome4 subpopulation. Median coverage is 27. This position passed quality control check.
BS2
High AC in GnomAdExome4 at 58 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL5A2NM_000393.5 linkc.2334C>T p.Asp778Asp synonymous_variant Exon 34 of 54 ENST00000374866.9 NP_000384.2 P05997
COL5A2XM_011510573.4 linkc.2196C>T p.Asp732Asp synonymous_variant Exon 37 of 57 XP_011508875.1
COL5A2XM_047443251.1 linkc.2196C>T p.Asp732Asp synonymous_variant Exon 39 of 59 XP_047299207.1
COL5A2XM_047443252.1 linkc.2196C>T p.Asp732Asp synonymous_variant Exon 38 of 58 XP_047299208.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL5A2ENST00000374866.9 linkc.2334C>T p.Asp778Asp synonymous_variant Exon 34 of 54 1 NM_000393.5 ENSP00000364000.3 P05997
COL5A2ENST00000618828.1 linkc.1173C>T p.Asp391Asp synonymous_variant Exon 27 of 47 5 ENSP00000482184.1 A0A087WYX9
COL5A2ENST00000470524.2 linkn.440C>T non_coding_transcript_exon_variant Exon 7 of 8 5

Frequencies

GnomAD3 genomes
AF:
0.00000752
AC:
1
AN:
132988
Hom.:
0
Cov.:
31
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:
0.0000157
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000121
AC:
3
AN:
248482
AF XY:
0.00000743
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000267
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000610
AC:
58
AN:
950646
Hom.:
0
Cov.:
27
AF XY:
0.0000571
AC XY:
28
AN XY:
490040
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
23432
American (AMR)
AF:
0.00
AC:
0
AN:
42746
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
21444
East Asian (EAS)
AF:
0.00
AC:
0
AN:
33720
South Asian (SAS)
AF:
0.00
AC:
0
AN:
76518
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47518
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4028
European-Non Finnish (NFE)
AF:
0.0000804
AC:
53
AN:
659450
Other (OTH)
AF:
0.000120
AC:
5
AN:
41790
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
4
8
11
15
19
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00000752
AC:
1
AN:
132996
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
63214
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
35918
American (AMR)
AF:
0.00
AC:
0
AN:
12702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3294
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4292
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4012
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6276
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
212
European-Non Finnish (NFE)
AF:
0.0000157
AC:
1
AN:
63622
Other (OTH)
AF:
0.00
AC:
0
AN:
1802
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000481
Hom.:
0
Bravo
AF:
0.0000416
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection Benign:1
Sep 11, 2019
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. -

not provided Benign:1
Sep 19, 2019
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Ehlers-Danlos syndrome, classic type, 1 Benign:1
Jun 18, 2024
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
BayesDel_noAF
Benign
-0.40
CADD
Benign
12
DANN
Benign
0.47
PhyloP100
0.77
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs138457003; hg19: chr2-189922049; API