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GeneBe

6-56059169-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BA1

The NM_030820.4(COL21A1):​c.2682C>T​(p.Pro894=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00307 in 1,611,580 control chromosomes in the GnomAD database, including 254 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0070 ( 54 hom., cov: 32)
Exomes 𝑓: 0.0027 ( 200 hom. )

Consequence

COL21A1
NM_030820.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.122
Variant links:
Genes affected
COL21A1 (HGNC:17025): (collagen type XXI alpha 1 chain) This gene encodes the alpha chain of type XXI collagen, a member of the FACIT (fibril-associated collagens with interrupted helices) collagen family. Type XXI collagen is localized to tissues containing type I collagen and maintains the integrity of the extracellular matrix. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 6-56059169-G-A is Benign according to our data. Variant chr6-56059169-G-A is described in ClinVar as [Benign]. Clinvar id is 771399.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.122 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0628 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL21A1NM_030820.4 linkuse as main transcriptc.2682C>T p.Pro894= synonymous_variant 29/30 ENST00000244728.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL21A1ENST00000244728.10 linkuse as main transcriptc.2682C>T p.Pro894= synonymous_variant 29/301 NM_030820.4 A1Q96P44-1

Frequencies

GnomAD3 genomes
AF:
0.00704
AC:
1071
AN:
152108
Hom.:
54
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000893
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0661
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000772
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00861
GnomAD3 exomes
AF:
0.0119
AC:
2936
AN:
246998
Hom.:
170
AF XY:
0.00895
AC XY:
1200
AN XY:
134054
show subpopulations
Gnomad AFR exome
AF:
0.00111
Gnomad AMR exome
AF:
0.0843
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000563
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000357
Gnomad OTH exome
AF:
0.00720
GnomAD4 exome
AF:
0.00265
AC:
3868
AN:
1459354
Hom.:
200
Cov.:
30
AF XY:
0.00228
AC XY:
1656
AN XY:
725972
show subpopulations
Gnomad4 AFR exome
AF:
0.000510
Gnomad4 AMR exome
AF:
0.0828
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000278
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000207
Gnomad4 OTH exome
AF:
0.00242
GnomAD4 genome
AF:
0.00705
AC:
1073
AN:
152226
Hom.:
54
Cov.:
32
AF XY:
0.00820
AC XY:
610
AN XY:
74420
show subpopulations
Gnomad4 AFR
AF:
0.000891
Gnomad4 AMR
AF:
0.0662
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000773
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00852
Alfa
AF:
0.00167
Hom.:
3
Bravo
AF:
0.0109
Asia WGS
AF:
0.00549
AC:
19
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeSep 17, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.42
CADD
Benign
6.7
DANN
Benign
0.68

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: rs185079637; hg19: chr6-55923967; API