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GeneBe

6-31927814-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_000063.6(C2):c.46+16G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000417 in 1,613,116 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00068 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00039 ( 7 hom. )

Consequence

C2
NM_000063.6 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0160
Variant links:
Genes affected
C2 (HGNC:1248): (complement C2) Component C2 is a serum glycoprotein that functions as part of the classical pathway of the complement system. Activated C1 cleaves C2 into C2a and C2b. The serine proteinase C2a then combines with complement factor 4b to create the C3 or C5 convertase. Deficiency of C2 has been reported to associated with certain autoimmune diseases and SNPs in this gene have been associated with altered susceptibility to age-related macular degeneration. This gene localizes within the class III region of the MHC on the short arm of chromosome 6. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional transcript variants have been described in publications but their full-length sequence has not been determined.[provided by RefSeq, Mar 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 6-31927814-G-A is Benign according to our data. Variant chr6-31927814-G-A is described in ClinVar as [Benign]. Clinvar id is 1579010.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
C2NM_000063.6 linkuse as main transcriptc.46+16G>A intron_variant ENST00000299367.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C2ENST00000299367.10 linkuse as main transcriptc.46+16G>A intron_variant 1 NM_000063.6 P1P06681-1

Frequencies

GnomAD3 genomes
AF:
0.000683
AC:
104
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00753
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000353
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000974
AC:
244
AN:
250634
Hom.:
4
AF XY:
0.000922
AC XY:
125
AN XY:
135594
show subpopulations
Gnomad AFR exome
AF:
0.0000626
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:
0.00771
Gnomad NFE exome
AF:
0.000627
Gnomad OTH exome
AF:
0.000817
GnomAD4 exome
AF:
0.000390
AC:
569
AN:
1460800
Hom.:
7
Cov.:
30
AF XY:
0.000363
AC XY:
264
AN XY:
726766
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00733
Gnomad4 NFE exome
AF:
0.000124
Gnomad4 OTH exome
AF:
0.000596
GnomAD4 genome
AF:
0.000683
AC:
104
AN:
152316
Hom.:
0
Cov.:
32
AF XY:
0.000940
AC XY:
70
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00753
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00122
Hom.:
0
Bravo
AF:
0.0000756
Asia WGS
AF:
0.000289
AC:
1
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 testingInvitaeJan 15, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
Cadd
Benign
8.0
Dann
Benign
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs538032432; hg19: chr6-31895591; API