1-196676018-G-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PM5 PP3_Moderate

The NM_000186.4(CFH):c.380G>C(p.Arg127Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000658 in 151,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R127L) has been classified as Pathogenic.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: CFH NM_000186.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.18

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr1-196676018-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 16554.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.882

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CFH	NM_000186.4	c.380G>C	p.Arg127Pro	missense_variant	4/22	ENST00000367429.9
CFH	NM_001014975.3	c.380G>C	p.Arg127Pro	missense_variant	4/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CFH	ENST00000367429.9	c.380G>C	p.Arg127Pro	missense_variant	4/22	1	NM_000186.4	P2

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151956 Hom.: 0 Cov.: 32

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: 0.0000945

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 28

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151956 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74212

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: 0.0000945

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
Cadd	Pathogenic	32
Dann	Uncertain	1.0
Eigen	Pathogenic	0.90
Eigen_PC	Pathogenic	0.79
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.84	T;T;T
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.88	D;D;D
MetaSVM	Uncertain	0.48	D
MutationTaster	Benign	0.91	D;D;N
PrimateAI	Benign	0.40	T
PROVEAN	Uncertain	-4.3	D;.;D
REVEL	Uncertain	0.49
Sift	Uncertain	0.016	D;.;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		1.0	.;.;D
Vest4		0.78
MutPred		0.68		Loss of catalytic residue at R127 (P = 0.0399);Loss of catalytic residue at R127 (P = 0.0399);Loss of catalytic residue at R127 (P = 0.0399);
MVP		0.85
MPC		0.76
ClinPred		1.0	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
gMVP		0.97

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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

Other links and lift over

dbSNP: rs121913058; hg19: chr1-196645148;