rs28413125

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000090.4(COL3A1):​c.1815+18A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0191 in 1,613,690 control chromosomes in the GnomAD database, including 2,581 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.076 ( 1307 hom., cov: 30)
Exomes 𝑓: 0.013 ( 1274 hom. )

Consequence

COL3A1
NM_000090.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.632
Variant links:
Genes affected
COL3A1 (HGNC:2201): (collagen type III alpha 1 chain) This gene encodes the pro-alpha1 chains of type III collagen, a fibrillar collagen that is found in extensible connective tissues such as skin, lung, uterus, intestine and the vascular system, frequently in association with type I collagen. Mutations in this gene are associated with Ehlers-Danlos syndrome type IV, and with aortic and arterial aneurysms. [provided by R. Dalgleish, Feb 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 2-188997236-A-G is Benign according to our data. Variant chr2-188997236-A-G is described in ClinVar as [Benign]. Clinvar id is 136846.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-188997236-A-G is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.241 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL3A1NM_000090.4 linkuse as main transcriptc.1815+18A>G intron_variant ENST00000304636.9 NP_000081.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL3A1ENST00000304636.9 linkuse as main transcriptc.1815+18A>G intron_variant 1 NM_000090.4 ENSP00000304408 P1P02461-1
COL3A1ENST00000450867.2 linkuse as main transcriptc.1716+18A>G intron_variant 1 ENSP00000415346

Frequencies

GnomAD3 genomes
AF:
0.0762
AC:
11560
AN:
151760
Hom.:
1304
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.245
Gnomad AMI
AF:
0.00549
Gnomad AMR
AF:
0.0312
Gnomad ASJ
AF:
0.00519
Gnomad EAS
AF:
0.0816
Gnomad SAS
AF:
0.0318
Gnomad FIN
AF:
0.00189
Gnomad MID
AF:
0.0191
Gnomad NFE
AF:
0.00319
Gnomad OTH
AF:
0.0679
GnomAD3 exomes
AF:
0.0311
AC:
7814
AN:
251390
Hom.:
615
AF XY:
0.0273
AC XY:
3705
AN XY:
135878
show subpopulations
Gnomad AFR exome
AF:
0.251
Gnomad AMR exome
AF:
0.0167
Gnomad ASJ exome
AF:
0.00407
Gnomad EAS exome
AF:
0.0863
Gnomad SAS exome
AF:
0.0328
Gnomad FIN exome
AF:
0.00268
Gnomad NFE exome
AF:
0.00300
Gnomad OTH exome
AF:
0.0215
GnomAD4 exome
AF:
0.0132
AC:
19299
AN:
1461812
Hom.:
1274
Cov.:
33
AF XY:
0.0129
AC XY:
9410
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.250
Gnomad4 AMR exome
AF:
0.0188
Gnomad4 ASJ exome
AF:
0.00275
Gnomad4 EAS exome
AF:
0.0766
Gnomad4 SAS exome
AF:
0.0313
Gnomad4 FIN exome
AF:
0.00234
Gnomad4 NFE exome
AF:
0.00216
Gnomad4 OTH exome
AF:
0.0271
GnomAD4 genome
AF:
0.0763
AC:
11590
AN:
151878
Hom.:
1307
Cov.:
30
AF XY:
0.0748
AC XY:
5554
AN XY:
74248
show subpopulations
Gnomad4 AFR
AF:
0.245
Gnomad4 AMR
AF:
0.0310
Gnomad4 ASJ
AF:
0.00519
Gnomad4 EAS
AF:
0.0814
Gnomad4 SAS
AF:
0.0323
Gnomad4 FIN
AF:
0.00189
Gnomad4 NFE
AF:
0.00319
Gnomad4 OTH
AF:
0.0672
Alfa
AF:
0.0372
Hom.:
122
Bravo
AF:
0.0869
Asia WGS
AF:
0.0740
AC:
257
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxOct 13, 2012This 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. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 28, 2023- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Ehlers-Danlos syndrome, type 4 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.12
DANN
Benign
0.54

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: rs28413125; hg19: chr2-189861962; COSMIC: COSV58584466; COSMIC: COSV58584466; API