rs9814951

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_000094.4(COL7A1):​c.6618+21A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0502 in 1,613,920 control chromosomes in the GnomAD database, including 2,461 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.068 ( 441 hom., cov: 32)
Exomes 𝑓: 0.048 ( 2020 hom. )

Consequence

COL7A1
NM_000094.4 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0650
Variant links:
Genes affected
COL7A1 (HGNC:2214): (collagen type VII alpha 1 chain) This gene encodes the alpha chain of type VII collagen. The type VII collagen fibril, composed of three identical alpha collagen chains, is restricted to the basement zone beneath stratified squamous epithelia. It functions as an anchoring fibril between the external epithelia and the underlying stroma. Mutations in this gene are associated with all forms of dystrophic epidermolysis bullosa. In the absence of mutations, however, an acquired form of this disease can result from an autoimmune response made to type VII collagen. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 3-48573492-T-C is Benign according to our data. Variant chr3-48573492-T-C is described in ClinVar as [Benign]. Clinvar id is 1265238.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.135 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COL7A1NM_000094.4 linkuse as main transcriptc.6618+21A>G intron_variant ENST00000681320.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COL7A1ENST00000681320.1 linkuse as main transcriptc.6618+21A>G intron_variant NM_000094.4 P1Q02388-1
COL7A1ENST00000328333.12 linkuse as main transcriptc.6618+21A>G intron_variant 1 P1Q02388-1
COL7A1ENST00000487017.5 linkuse as main transcriptn.2535+21A>G intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0674
AC:
10251
AN:
152064
Hom.:
434
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.109
Gnomad AMI
AF:
0.0497
Gnomad AMR
AF:
0.0427
Gnomad ASJ
AF:
0.0827
Gnomad EAS
AF:
0.144
Gnomad SAS
AF:
0.0486
Gnomad FIN
AF:
0.0505
Gnomad MID
AF:
0.0475
Gnomad NFE
AF:
0.0456
Gnomad OTH
AF:
0.0679
GnomAD3 exomes
AF:
0.0584
AC:
14664
AN:
251300
Hom.:
582
AF XY:
0.0560
AC XY:
7607
AN XY:
135838
show subpopulations
Gnomad AFR exome
AF:
0.111
Gnomad AMR exome
AF:
0.0398
Gnomad ASJ exome
AF:
0.0801
Gnomad EAS exome
AF:
0.153
Gnomad SAS exome
AF:
0.0465
Gnomad FIN exome
AF:
0.0477
Gnomad NFE exome
AF:
0.0447
Gnomad OTH exome
AF:
0.0528
GnomAD4 exome
AF:
0.0484
AC:
70803
AN:
1461738
Hom.:
2020
Cov.:
37
AF XY:
0.0484
AC XY:
35192
AN XY:
727154
show subpopulations
Gnomad4 AFR exome
AF:
0.115
Gnomad4 AMR exome
AF:
0.0409
Gnomad4 ASJ exome
AF:
0.0766
Gnomad4 EAS exome
AF:
0.119
Gnomad4 SAS exome
AF:
0.0458
Gnomad4 FIN exome
AF:
0.0496
Gnomad4 NFE exome
AF:
0.0431
Gnomad4 OTH exome
AF:
0.0606
GnomAD4 genome
AF:
0.0676
AC:
10289
AN:
152182
Hom.:
441
Cov.:
32
AF XY:
0.0668
AC XY:
4970
AN XY:
74408
show subpopulations
Gnomad4 AFR
AF:
0.109
Gnomad4 AMR
AF:
0.0425
Gnomad4 ASJ
AF:
0.0827
Gnomad4 EAS
AF:
0.144
Gnomad4 SAS
AF:
0.0489
Gnomad4 FIN
AF:
0.0505
Gnomad4 NFE
AF:
0.0456
Gnomad4 OTH
AF:
0.0738
Alfa
AF:
0.0490
Hom.:
324
Bravo
AF:
0.0686
Asia WGS
AF:
0.145
AC:
506
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 testingGeneDxMar 03, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
2.7
DANN
Benign
0.79

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: rs9814951; hg19: chr3-48610925; COSMIC: COSV60393018; COSMIC: COSV60393018; API