chr2-189057349-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_000393.5(COL5A2):​c.2308G>T​(p.Ala770Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,458,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.81
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), COL5A2. . Gene score misZ 2.4395 (greater than the threshold 3.09). Trascript score misZ 3.3523 (greater than threshold 3.09). GenCC has associacion of gene with Ehlers-Danlos syndrome, classic type, 2, Ehlers-Danlos syndrome, classic type.
BP4
Computational evidence support a benign effect (MetaRNN=0.34439376).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL5A2NM_000393.5 linkuse as main transcriptc.2308G>T p.Ala770Ser missense_variant 34/54 ENST00000374866.9 NP_000384.2
COL5A2XM_011510573.4 linkuse as main transcriptc.2170G>T p.Ala724Ser missense_variant 37/57 XP_011508875.1
COL5A2XM_047443251.1 linkuse as main transcriptc.2170G>T p.Ala724Ser missense_variant 39/59 XP_047299207.1
COL5A2XM_047443252.1 linkuse as main transcriptc.2170G>T p.Ala724Ser missense_variant 38/58 XP_047299208.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL5A2ENST00000374866.9 linkuse as main transcriptc.2308G>T p.Ala770Ser missense_variant 34/541 NM_000393.5 ENSP00000364000 P1
COL5A2ENST00000618828.1 linkuse as main transcriptc.1147G>T p.Ala383Ser missense_variant 27/475 ENSP00000482184
COL5A2ENST00000470524.2 linkuse as main transcriptn.414G>T non_coding_transcript_exon_variant 7/85

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251104
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135730
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1458208
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
725542
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.00000180
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
Cov.:
31

ClinVar

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

Submissions by phenotype

Connective tissue disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCenter for Human Genetics, Inc, Center for Human Genetics, IncNov 01, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
0.0056
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.21
T;T;T
Eigen
Benign
-0.0072
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.86
.;D;D
M_CAP
Benign
0.082
D
MetaRNN
Benign
0.34
T;T;T
MetaSVM
Uncertain
0.078
D
MutationAssessor
Benign
0.69
N;.;N
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.90
N;.;.
REVEL
Uncertain
0.40
Sift
Benign
0.14
T;.;.
Sift4G
Benign
0.45
T;T;.
Polyphen
0.023
B;.;B
Vest4
0.23
MutPred
0.25
Gain of glycosylation at A770 (P = 0.0062);.;Gain of glycosylation at A770 (P = 0.0062);
MVP
0.40
MPC
0.24
ClinPred
0.36
T
GERP RS
5.9
Varity_R
0.087
gMVP
0.079

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs1244308550; hg19: chr2-189922075; API