rs200319927

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_000088.4(COL1A1):​c.3258C>T​(p.Pro1086Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000225 in 1,597,340 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

COL1A1
NM_000088.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.574

Publications

1 publications found
Variant links:
Genes affected
COL1A1 (HGNC:2197): (collagen type I alpha 1 chain) This gene encodes the pro-alpha1 chains of type I collagen whose triple helix comprises two alpha1 chains and one alpha2 chain. Type I is a fibril-forming collagen found in most connective tissues and is abundant in bone, cornea, dermis and tendon. Mutations in this gene are associated with osteogenesis imperfecta types I-IV, Ehlers-Danlos syndrome type VIIA, Ehlers-Danlos syndrome Classical type, Caffey Disease and idiopathic osteoporosis. Reciprocal translocations between chromosomes 17 and 22, where this gene and the gene for platelet-derived growth factor beta are located, are associated with a particular type of skin tumor called dermatofibrosarcoma protuberans, resulting from unregulated expression of the growth factor. Two transcripts, resulting from the use of alternate polyadenylation signals, have been identified for this gene. [provided by R. Dalgleish, Feb 2008]
COL1A1 Gene-Disease associations (from GenCC):
  • Caffey disease
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, Ambry Genetics
  • COL1A1-related Ehlers-Danlos syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • combined osteogenesis imperfecta and Ehlers-Danlos syndrome 1
    Inheritance: AD Classification: DEFINITIVE, MODERATE Submitted by: ClinGen, Ambry Genetics
  • Ehlers-Danlos syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • Ehlers-Danlos syndrome, arthrochalasia type
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • osteogenesis imperfecta
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • osteogenesis imperfecta type 1
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • osteogenesis imperfecta type 2
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • osteogenesis imperfecta type 3
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
  • osteogenesis imperfecta type 4
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, G2P, Orphanet
  • Ehlers-Danlos syndrome, classic type, 1
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • Ehlers-Danlos syndrome, classic type
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Ehlers-Danlos/osteogenesis imperfecta syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • high bone mass osteogenesis imperfecta
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.68).
BP6
Variant 17-50188099-G-A is Benign according to our data. Variant chr17-50188099-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 499454.
BP7
Synonymous conserved (PhyloP=-0.574 with no splicing effect.
BS2
High AC in GnomAd4 at 5 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000088.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL1A1
NM_000088.4
MANE Select
c.3258C>Tp.Pro1086Pro
synonymous
Exon 44 of 51NP_000079.2P02452

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL1A1
ENST00000225964.10
TSL:1 MANE Select
c.3258C>Tp.Pro1086Pro
synonymous
Exon 44 of 51ENSP00000225964.6P02452
COL1A1
ENST00000861334.1
c.3258C>Tp.Pro1086Pro
synonymous
Exon 44 of 51ENSP00000531393.1
COL1A1
ENST00000861339.1
c.3258C>Tp.Pro1086Pro
synonymous
Exon 44 of 51ENSP00000531398.1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000230
AC:
5
AN:
217364
AF XY:
0.0000339
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000635
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000123
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000215
AC:
31
AN:
1445034
Hom.:
0
Cov.:
36
AF XY:
0.0000237
AC XY:
17
AN XY:
717542
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33058
American (AMR)
AF:
0.0000474
AC:
2
AN:
42214
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25810
East Asian (EAS)
AF:
0.0000257
AC:
1
AN:
38902
South Asian (SAS)
AF:
0.0000236
AC:
2
AN:
84712
European-Finnish (FIN)
AF:
0.0000192
AC:
1
AN:
52090
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000209
AC:
23
AN:
1102852
Other (OTH)
AF:
0.0000335
AC:
2
AN:
59642
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.452
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74482
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41562
American (AMR)
AF:
0.0000653
AC:
1
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000591
Hom.:
0
Bravo
AF:
0.0000264

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Cardiovascular phenotype (1)
-
1
-
not provided (1)
-
-
1
Osteogenesis imperfecta type I (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
2.9
DANN
Benign
0.77
PhyloP100
-0.57
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs200319927; hg19: chr17-48265460; COSMIC: COSV56803512; COSMIC: COSV56803512; API