chr1-196902602-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001201550.3(CFHR4):​c.243G>A​(p.Thr81=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00167 in 1,610,032 control chromosomes in the GnomAD database, including 119 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0091 ( 64 hom., cov: 32)
Exomes 𝑓: 0.00090 ( 55 hom. )

Consequence

CFHR4
NM_001201550.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.907
Variant links:
Genes affected
CFHR4 (HGNC:16979): (complement factor H related 4) This gene is a member of the complement factor H (CFH) gene family, and encodes one of the 5 CFH-related (CFHR) proteins. These 5 genes are closely linked to the CFH gene on chromosome 1q31-q32. The CFHRs are secreted plasma proteins synthesized primarily by the hepatocytes, and composed of highly-related short consensus repeats (SCRs). This protein enhances the cofactor activity of CFH, and is involved in complement regulation. It can associate with lipoproteins and may play a role in lipid metabolism. Alternatively spliced transcript variants encoding different isoforms (varying in the number of SCRs) have been described for this gene. [provided by RefSeq, Jan 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 1-196902602-G-A is Benign according to our data. Variant chr1-196902602-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1336563.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-196902602-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.907 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00913 (1382/151328) while in subpopulation AFR AF= 0.0322 (1322/41008). AF 95% confidence interval is 0.0308. There are 64 homozygotes in gnomad4. There are 650 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 64 AD,AR,Digenic gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CFHR4NM_001201550.3 linkuse as main transcriptc.243G>A p.Thr81= synonymous_variant 2/10 ENST00000608469.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CFHR4ENST00000608469.6 linkuse as main transcriptc.243G>A p.Thr81= synonymous_variant 2/101 NM_001201550.3 P4Q92496-1

Frequencies

GnomAD3 genomes
AF:
0.00909
AC:
1375
AN:
151218
Hom.:
64
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0322
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00277
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000589
Gnomad OTH
AF:
0.00577
GnomAD3 exomes
AF:
0.00215
AC:
538
AN:
249666
Hom.:
32
AF XY:
0.00158
AC XY:
214
AN XY:
135418
show subpopulations
Gnomad AFR exome
AF:
0.0300
Gnomad AMR exome
AF:
0.00156
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000707
Gnomad OTH exome
AF:
0.000991
GnomAD4 exome
AF:
0.000899
AC:
1312
AN:
1458704
Hom.:
55
Cov.:
30
AF XY:
0.000760
AC XY:
552
AN XY:
725906
show subpopulations
Gnomad4 AFR exome
AF:
0.0318
Gnomad4 AMR exome
AF:
0.00181
Gnomad4 ASJ exome
AF:
0.0000766
Gnomad4 EAS exome
AF:
0.0000757
Gnomad4 SAS exome
AF:
0.000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000270
Gnomad4 OTH exome
AF:
0.00207
GnomAD4 genome
AF:
0.00913
AC:
1382
AN:
151328
Hom.:
64
Cov.:
32
AF XY:
0.00879
AC XY:
650
AN XY:
73934
show subpopulations
Gnomad4 AFR
AF:
0.0322
Gnomad4 AMR
AF:
0.00277
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000589
Gnomad4 OTH
AF:
0.00571
Alfa
AF:
0.00270
Hom.:
5
Bravo
AF:
0.0100
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.0000548
EpiControl
AF:
0.000178

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoMay 14, 2019- -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
2.3
DANN
Benign
0.34

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: rs77556138; hg19: chr1-196871732; COSMIC: COSV52230901; API