rs1635560

Variant summary

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

The NM_001844.5(COL2A1):​c.4317+43C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.232 in 1,613,520 control chromosomes in the GnomAD database, including 44,204 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.22 ( 3795 hom., cov: 32)
Exomes 𝑓: 0.23 ( 40409 hom. )

Consequence

COL2A1
NM_001844.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.37
Variant links:
Genes affected
COL2A1 (HGNC:2200): (collagen type II alpha 1 chain) This gene encodes the alpha-1 chain of type II collagen, a fibrillar collagen found in cartilage and the vitreous humor of the eye. Mutations in this gene are associated with achondrogenesis, chondrodysplasia, early onset familial osteoarthritis, SED congenita, Langer-Saldino achondrogenesis, Kniest dysplasia, Stickler syndrome type I, and spondyloepimetaphyseal dysplasia Strudwick type. In addition, defects in processing chondrocalcin, a calcium binding protein that is the C-propeptide of this collagen molecule, are also associated with chondrodysplasia. There are two transcripts identified for this gene. [provided by RefSeq, Jul 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=-0.9).
BP6
Variant 12-47974046-G-A is Benign according to our data. Variant chr12-47974046-G-A is described in ClinVar as [Benign]. Clinvar id is 258240.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.287 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COL2A1NM_001844.5 linkuse as main transcriptc.4317+43C>T intron_variant ENST00000380518.8 NP_001835.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COL2A1ENST00000380518.8 linkuse as main transcriptc.4317+43C>T intron_variant 1 NM_001844.5 ENSP00000369889 P1P02458-2
COL2A1ENST00000337299.7 linkuse as main transcriptc.4110+43C>T intron_variant 1 ENSP00000338213 P02458-1
COL2A1ENST00000493991.5 linkuse as main transcriptn.3403+43C>T intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.221
AC:
33630
AN:
151992
Hom.:
3790
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.208
Gnomad AMI
AF:
0.237
Gnomad AMR
AF:
0.181
Gnomad ASJ
AF:
0.189
Gnomad EAS
AF:
0.208
Gnomad SAS
AF:
0.300
Gnomad FIN
AF:
0.191
Gnomad MID
AF:
0.269
Gnomad NFE
AF:
0.240
Gnomad OTH
AF:
0.228
GnomAD3 exomes
AF:
0.221
AC:
55094
AN:
249444
Hom.:
6465
AF XY:
0.229
AC XY:
30897
AN XY:
134998
show subpopulations
Gnomad AFR exome
AF:
0.206
Gnomad AMR exome
AF:
0.141
Gnomad ASJ exome
AF:
0.196
Gnomad EAS exome
AF:
0.200
Gnomad SAS exome
AF:
0.301
Gnomad FIN exome
AF:
0.198
Gnomad NFE exome
AF:
0.235
Gnomad OTH exome
AF:
0.231
GnomAD4 exome
AF:
0.233
AC:
340967
AN:
1461410
Hom.:
40409
Cov.:
35
AF XY:
0.237
AC XY:
172112
AN XY:
726998
show subpopulations
Gnomad4 AFR exome
AF:
0.212
Gnomad4 AMR exome
AF:
0.146
Gnomad4 ASJ exome
AF:
0.196
Gnomad4 EAS exome
AF:
0.219
Gnomad4 SAS exome
AF:
0.297
Gnomad4 FIN exome
AF:
0.198
Gnomad4 NFE exome
AF:
0.236
Gnomad4 OTH exome
AF:
0.229
GnomAD4 genome
AF:
0.221
AC:
33669
AN:
152110
Hom.:
3795
Cov.:
32
AF XY:
0.218
AC XY:
16224
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.208
Gnomad4 AMR
AF:
0.181
Gnomad4 ASJ
AF:
0.189
Gnomad4 EAS
AF:
0.209
Gnomad4 SAS
AF:
0.300
Gnomad4 FIN
AF:
0.191
Gnomad4 NFE
AF:
0.240
Gnomad4 OTH
AF:
0.226
Alfa
AF:
0.238
Hom.:
4375
Bravo
AF:
0.218
Asia WGS
AF:
0.236
AC:
818
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.26
DANN
Benign
0.50

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: rs1635560; hg19: chr12-48367829; COSMIC: COSV61531043; COSMIC: COSV61531043; API