9-134834960-T-C

Variant summary

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

The NM_000093.5(COL5A1):​c.5137-11T>C variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000905 in 1,600,592 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0047 ( 8 hom., cov: 33)
Exomes 𝑓: 0.00050 ( 7 hom. )

Consequence

COL5A1
NM_000093.5 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0002041
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -0.364
Variant links:
Genes affected
COL5A1 (HGNC:2209): (collagen type V alpha 1 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. The encoded procollagen protein occurs commonly as the heterotrimer pro-alpha1(V)-pro-alpha1(V)-pro-alpha2(V). Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]

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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 9-134834960-T-C is Benign according to our data. Variant chr9-134834960-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 136910.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00474 (722/152180) while in subpopulation AFR AF= 0.0162 (674/41524). AF 95% confidence interval is 0.0152. There are 8 homozygotes in gnomad4. There are 344 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 722 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL5A1NM_000093.5 linkuse as main transcriptc.5137-11T>C splice_polypyrimidine_tract_variant, intron_variant ENST00000371817.8
LOC101448202NR_103451.2 linkuse as main transcriptn.71-14751A>G intron_variant, non_coding_transcript_variant
COL5A1NM_001278074.1 linkuse as main transcriptc.5137-11T>C splice_polypyrimidine_tract_variant, intron_variant
COL5A1XM_017014266.3 linkuse as main transcript downstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL5A1ENST00000371817.8 linkuse as main transcriptc.5137-11T>C splice_polypyrimidine_tract_variant, intron_variant 1 NM_000093.5 P4P20908-1
COL5A1ENST00000371820.4 linkuse as main transcriptc.5137-11T>C splice_polypyrimidine_tract_variant, intron_variant 2 A2P20908-2

Frequencies

GnomAD3 genomes
AF:
0.00475
AC:
723
AN:
152062
Hom.:
8
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0163
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00236
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:
0.0000735
Gnomad OTH
AF:
0.00335
GnomAD3 exomes
AF:
0.00144
AC:
351
AN:
244058
Hom.:
4
AF XY:
0.00103
AC XY:
136
AN XY:
132484
show subpopulations
Gnomad AFR exome
AF:
0.0193
Gnomad AMR exome
AF:
0.00105
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000548
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000456
Gnomad OTH exome
AF:
0.000834
GnomAD4 exome
AF:
0.000502
AC:
727
AN:
1448412
Hom.:
7
Cov.:
31
AF XY:
0.000417
AC XY:
301
AN XY:
721218
show subpopulations
Gnomad4 AFR exome
AF:
0.0179
Gnomad4 AMR exome
AF:
0.000989
Gnomad4 ASJ exome
AF:
0.0000385
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000218
Gnomad4 OTH exome
AF:
0.000950
GnomAD4 genome
AF:
0.00474
AC:
722
AN:
152180
Hom.:
8
Cov.:
33
AF XY:
0.00462
AC XY:
344
AN XY:
74400
show subpopulations
Gnomad4 AFR
AF:
0.0162
Gnomad4 AMR
AF:
0.00235
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00244
Hom.:
2
Bravo
AF:
0.00565
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpAug 10, 2023- -
Benign, criteria provided, single submitterclinical testingGeneDxSep 26, 2013This 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. -
Ehlers-Danlos syndrome, classic type, 1 Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabMar 15, 2022- -
Benign, criteria provided, single submitterclinical testingInvitaeDec 17, 2021- -
Fibromuscular dysplasia, multifocal Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabMar 15, 2022- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesOct 19, 2023- -
Ehlers-Danlos syndrome, classic type Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 28, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Ehlers-Danlos syndrome, classic type, 1;C5543412:Fibromuscular dysplasia, multifocal Benign:1
Benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 02, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
1.1
DANN
Benign
0.48

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00020
dbscSNV1_RF
Benign
0.014
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: rs183495554; hg19: chr9-137726806; API