rs774849517

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_000093.5(COL5A1):c.3257C>A(p.Ala1086Glu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000684 in 1,461,540 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1086V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

COL5A1
NM_000093.5 missense, splice_region

Scores

Splicing: ADA: 0.3291

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.92

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]

COL5A1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, COL5A1

PP3

MetaRNN computational evidence supports a deleterious effect, 0.804

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
COL5A1	NM_000093.5 linkuse as main transcript	c.3257C>A	p.Ala1086Glu	missense_variant, splice_region_variant	41/66	ENST00000371817.8
COL5A1	NM_001278074.1 linkuse as main transcript	c.3257C>A	p.Ala1086Glu	missense_variant, splice_region_variant	41/66
COL5A1	XM_017014266.3 linkuse as main transcript	c.3257C>A	p.Ala1086Glu	missense_variant, splice_region_variant	41/65

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL5A1	ENST00000371817.8 linkuse as main transcript	c.3257C>A	p.Ala1086Glu	missense_variant, splice_region_variant	41/66	1	NM_000093.5	P4	P20908-1
COL5A1	ENST00000371820.4 linkuse as main transcript	c.3257C>A	p.Ala1086Glu	missense_variant, splice_region_variant	41/66	2		A2	P20908-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251382

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135900

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:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461540

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727096

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Pathogenic

0.35

BayesDel_noAF

Pathogenic

0.26

Cadd

Uncertain

Dann

Benign

0.96

DEOGEN2

Benign

0.21

T;.

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.75

T;T

M_CAP

Pathogenic

0.32

MetaRNN

Pathogenic

0.80

D;D

MetaSVM

Uncertain

0.39

MutationAssessor

Benign

1.5

L;L

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-2.0

N;.

REVEL

Uncertain

0.60

Sift

Benign

0.55

T;.

Sift4G

Benign

0.74

T;T

Polyphen

1.0

D;.

Vest4

0.70

MutPred

0.29

Gain of solvent accessibility (P = 0.0456);Gain of solvent accessibility (P = 0.0456);

MVP

0.87

MPC

0.63

ClinPred

0.58

GERP RS

5.2

Varity_R

0.34

gMVP

0.31

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.33

dbscSNV1_RF

Benign

0.42

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over