2-189079121-A-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_000393.5(COL5A2):​c.961-14T>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 0.000239 in 1,605,234 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 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 2.57
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 Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 2-189079121-A-G is Benign according to our data. Variant chr2-189079121-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 256007.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 22 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL5A2NM_000393.5 linkuse as main transcriptc.961-14T>C splice_polypyrimidine_tract_variant, intron_variant ENST00000374866.9 NP_000384.2
COL5A2XM_011510573.4 linkuse as main transcriptc.823-14T>C splice_polypyrimidine_tract_variant, intron_variant XP_011508875.1
COL5A2XM_047443251.1 linkuse as main transcriptc.823-14T>C splice_polypyrimidine_tract_variant, intron_variant XP_047299207.1
COL5A2XM_047443252.1 linkuse as main transcriptc.823-14T>C splice_polypyrimidine_tract_variant, intron_variant XP_047299208.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL5A2ENST00000374866.9 linkuse as main transcriptc.961-14T>C splice_polypyrimidine_tract_variant, intron_variant 1 NM_000393.5 ENSP00000364000 P1
COL5A2ENST00000618828.1 linkuse as main transcriptc.331-14T>C splice_polypyrimidine_tract_variant, intron_variant 5 ENSP00000482184

Frequencies

GnomAD3 genomes
AF:
0.000145
AC:
22
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000220
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000108
AC:
27
AN:
250726
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135514
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000925
Gnomad NFE exome
AF:
0.000203
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000248
AC:
361
AN:
1453036
Hom.:
0
Cov.:
28
AF XY:
0.000216
AC XY:
156
AN XY:
723484
show subpopulations
Gnomad4 AFR exome
AF:
0.0000601
Gnomad4 AMR exome
AF:
0.0000448
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000304
Gnomad4 OTH exome
AF:
0.000283
GnomAD4 genome
AF:
0.000145
AC:
22
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000220
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000171
Hom.:
0
Bravo
AF:
0.000151

ClinVar

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

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpAug 11, 2024- -
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Ehlers-Danlos syndrome, classic type, 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 08, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
15
DANN
Benign
0.73

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: rs199880428; hg19: chr2-189943847; API