chr1-196774952-A-G

Variant summary

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

The NM_021023.6(CFHR3):​c.58+8A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000135 in 1,520,532 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0013 ( 2 hom., cov: 25)
Exomes 𝑓: 0.000016 ( 4 hom. )

Consequence

CFHR3
NM_021023.6 splice_region, intron

Scores

2
Splicing: ADA: 0.00001400
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.677
Variant links:
Genes affected
CFHR3 (HGNC:16980): (complement factor H related 3) The protein encoded by this gene is a secreted protein, which belongs to the complement factor H-related protein family. It binds to heparin, and may be involved in complement regulation. Mutations in this gene are associated with decreased risk of age-related macular degeneration, and with an increased risk of atypical hemolytic-uremic syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

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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=-0.99).
BP6
Variant 1-196774952-A-G is Benign according to our data. Variant chr1-196774952-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 782688.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAd4 at 2 AD,AR,Digenic gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CFHR3NM_021023.6 linkuse as main transcriptc.58+8A>G splice_region_variant, intron_variant ENST00000367425.9
CFHR3NM_001166624.2 linkuse as main transcriptc.58+8A>G splice_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CFHR3ENST00000367425.9 linkuse as main transcriptc.58+8A>G splice_region_variant, intron_variant 1 NM_021023.6 P1Q02985-1
CFHR3ENST00000471440.6 linkuse as main transcriptc.58+8A>G splice_region_variant, intron_variant 1
CFHR3ENST00000391985.7 linkuse as main transcriptc.58+8A>G splice_region_variant, intron_variant 2 Q02985-2
CFHR3ENST00000367427.7 linkuse as main transcriptc.58+8A>G splice_region_variant, intron_variant, NMD_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00135
AC:
185
AN:
136896
Hom.:
2
Cov.:
25
show subpopulations
Gnomad AFR
AF:
0.000273
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0121
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000310
Gnomad OTH
AF:
0.00217
GnomAD3 exomes
AF:
0.0000126
AC:
3
AN:
238120
Hom.:
0
AF XY:
0.0000156
AC XY:
2
AN XY:
128404
show subpopulations
Gnomad AFR exome
AF:
0.0000733
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:
0.00
Gnomad NFE exome
AF:
0.00000919
Gnomad OTH exome
AF:
0.000172
GnomAD4 exome
AF:
0.0000159
AC:
22
AN:
1383514
Hom.:
4
Cov.:
29
AF XY:
0.0000175
AC XY:
12
AN XY:
687640
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000161
Gnomad4 OTH exome
AF:
0.0000878
GnomAD4 genome
AF:
0.00134
AC:
184
AN:
137018
Hom.:
2
Cov.:
25
AF XY:
0.00148
AC XY:
99
AN XY:
66724
show subpopulations
Gnomad4 AFR
AF:
0.000272
Gnomad4 AMR
AF:
0.0120
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000195
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000310
Gnomad4 OTH
AF:
0.00215
Alfa
AF:
0.00135
Hom.:
0

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.99
CADD
Benign
1.4
DANN
Benign
0.46

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000014
dbscSNV1_RF
Benign
0.0040
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: rs191734103; hg19: chr1-196744082; COSMIC: COSV66402498; API