1-196673839-CTT-CTTT

Position:

chr1-196673839-CTT-CTTT

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_000186.4(CFH):c.245-9dupT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0016 in 1,478,290 control chromosomes in the GnomAD database, including 6 homozygotes. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0032 ( 3 hom., cov: 23)

Exomes 𝑓: 0.0014 ( 3 hom. )

Consequence

CFH
NM_000186.4 splice_region, intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.0950

Variant links:

Genes affected

CFH (HGNC:4883): (complement factor H) This gene is a member of the Regulator of Complement Activation (RCA) gene cluster and encodes a protein with twenty short consensus repeat (SCR) domains. This protein is secreted into the bloodstream and has an essential role in the regulation of complement activation, restricting this innate defense mechanism to microbial infections. Mutations in this gene have been associated with hemolytic-uremic syndrome (HUS) and chronic hypocomplementemic nephropathy. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Oct 2011]

CFH links:

ENSG00000289697 (HGNC:):

ENSG00000289697 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 1-196673839-C-CT is Benign according to our data. Variant chr1-196673839-C-CT is described in ClinVar as [Likely_benign]. Clinvar id is 1553720.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00322 (487/151258) while in subpopulation AFR AF= 0.0109 (448/41252). AF 95% confidence interval is 0.01. There are 3 homozygotes in gnomad4. There are 230 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 3 SD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CFH	NM_000186.4 linkuse as main transcript	c.245-9dupT		splice_region_variant, intron_variant		ENST00000367429.9	NP_000177.2	P08603A0A024R962
CFH	NM_001014975.3 linkuse as main transcript	c.245-9dupT		splice_region_variant, intron_variant			NP_001014975.1	A0A0D9SG88

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CFH	ENST00000367429.9 linkuse as main transcript	c.245-9dupT		splice_region_variant, intron_variant		1	NM_000186.4	ENSP00000356399.4		P08603
ENSG00000289697	ENST00000696032.1 linkuse as main transcript	c.245-9dupT		splice_region_variant, intron_variant				ENSP00000512341.1		A0A8Q3SIA1

Frequencies

GnomAD3 genomes

AF:

0.00323

AC:

488

AN:

151144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0109

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00119

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00117

Gnomad SAS

AF:

0.000627

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000885

Gnomad OTH

AF:

0.00289

GnomAD4 exome

AF:

0.00141

AC:

1872

AN:

1327032

Hom.:

Cov.:

AF XY:

0.00129

AC XY:

862

AN XY:

666232

show subpopulations

Gnomad4 AFR exome

AF:

0.0128

Gnomad4 AMR exome

AF:

0.00150

Gnomad4 ASJ exome

AF:

0.000480

Gnomad4 EAS exome

AF:

0.00256

Gnomad4 SAS exome

AF:

0.000967

Gnomad4 FIN exome

AF:

0.000480

Gnomad4 NFE exome

AF:

0.00110

Gnomad4 OTH exome

AF:

0.00191

GnomAD4 genome

AF:

0.00322

AC:

487

AN:

151258

Hom.:

Cov.:

AF XY:

0.00312

AC XY:

230

AN XY:

73824

show subpopulations

Gnomad4 AFR

AF:

0.0109

Gnomad4 AMR

AF:

0.00118

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00117

Gnomad4 SAS

AF:

0.000627

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000885

Gnomad4 OTH

AF:

0.00286

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Factor H deficiency;C0730295:Basal laminar drusen;C1853147:Age related macular degeneration 4;C2749604:Hemolytic uremic syndrome, atypical, susceptibility to, 1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Dec 22, 2021

- -

Factor H deficiency

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Apr 11, 2023

- -

Hemolytic uremic syndrome, atypical, susceptibility to, 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Apr 11, 2023

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 25, 2024

- -

Basal laminar drusen

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Apr 11, 2023

- -

Age related macular degeneration 4

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Apr 11, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over