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2-189179589-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_ModerateBP6_Moderate

The NM_000393.5(COL5A2):​c.16G>A​(p.Ala6Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,606,566 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 Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A6S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 missense

Scores

1
17

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.44
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 Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, COL5A2
BP4
Computational evidence support a benign effect (MetaRNN=0.10854185).
BP6
Variant 2-189179589-C-T is Benign according to our data. Variant chr2-189179589-C-T is described in ClinVar as [Benign]. Clinvar id is 1919550.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL5A2NM_000393.5 linkuse as main transcriptc.16G>A p.Ala6Thr missense_variant 1/54 ENST00000374866.9
COL5A2XM_011510573.4 linkuse as main transcriptc.-42+45559G>A intron_variant
COL5A2XM_047443251.1 linkuse as main transcriptc.-42+45559G>A intron_variant
COL5A2XM_047443252.1 linkuse as main transcriptc.-42+45559G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL5A2ENST00000374866.9 linkuse as main transcriptc.16G>A p.Ala6Thr missense_variant 1/541 NM_000393.5 P1
COL5A2ENST00000618828.1 linkuse as main transcriptc.-615G>A 5_prime_UTR_variant 1/475
COL5A2ENST00000649966.1 linkuse as main transcriptc.-42+45559G>A intron_variant

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152134
Hom.:
0
Cov.:
32
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
GnomAD3 exomes
AF:
0.00000418
AC:
1
AN:
239242
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
128988
show subpopulations
Gnomad AFR exome
AF:
0.0000671
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.88e-7
AC:
1
AN:
1454432
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
722812
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74326
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:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Ehlers-Danlos syndrome, classic type, 1 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 06, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.16
T;T
Eigen
Benign
-0.25
Eigen_PC
Benign
-0.033
FATHMM_MKL
Benign
0.48
N
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-0.67
T
MutationAssessor
Benign
0.0
N;N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.25
N;.
REVEL
Benign
0.27
Sift
Benign
0.046
D;.
Sift4G
Benign
0.073
T;.
Polyphen
0.0
B;B
Vest4
0.20
MutPred
0.50
Gain of relative solvent accessibility (P = 0.09);Gain of relative solvent accessibility (P = 0.09);
MVP
0.38
MPC
0.26
ClinPred
0.18
T
GERP RS
4.8
Varity_R
0.095
gMVP
0.49

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.

Other links and lift over

dbSNP: rs372910621; hg19: chr2-190044315; API