rs121913052

Variant names:

• chr1-196715679-T-C
• rs121913052
• NM_000186.4:c.1606T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2 PP3_Strong PP5

The NM_000186.4(CFH):​c.1606T>C​(p.Cys536Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CFH NM_000186.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1
• Conservation: PhyloP100: 3.97
• Publications: 5 publications found

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 Gene-Disease associations (from GenCC):

• primary membranoproliferative glomerulonephritis

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• atypical hemolytic-uremic syndrome

  Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
• hemolytic uremic syndrome, atypical, susceptibility to, 1

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• complement factor H deficiency

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• basal laminar drusen

  Inheritance: Unknown, AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• Doyne honeycomb retinal dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• dense deposit disease

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000289697 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.992
• PP5: Variant 1-196715679-T-C is Pathogenic according to our data. Variant chr1-196715679-T-C is described in ClinVar as Pathogenic. ClinVar VariationId is 16543.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000186.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CFH	NM_000186.4	MANE Select	c.1606T>C	p.Cys536Arg	missense	Exon 11 of 22	NP_000177.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CFH	ENST00000367429.9	TSL:1 MANE Select	c.1606T>C	p.Cys536Arg	missense	Exon 11 of 22	ENSP00000356399.4
	ENSG00000289697	ENST00000696032.1		c.1606T>C	p.Cys536Arg	missense	Exon 11 of 27	ENSP00000512341.1
	CFH	ENST00000466229.5	TSL:1	n.3622T>C		non_coding_transcript_exon	Exon 6 of 16

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Factor H deficiency Pathogenic:1 Uncertain:1

Apr 23, 1999

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Oct 02, 2025

Genomenon, Inc, Genomenon, Inc

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: curation

CFH p.Cys536Arg (c.1606T>C) is a missense variant that changes the amino acid at residue 536 from Cysteine to Arginine. This variant has been observed in at least one proband affected with complement factor H deficiency (PMID:9312129). Functional studies have been reported (PMID:10206995). It is absent or not present at a significant frequency in gnomAD. In silico models agree that this variant is possibly or probably damaging. In conclusion, we classify CFH p.Cys536Arg (c.1606T>C) as a variant of uncertain significance.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.53	D
BayesDel_noAF	Pathogenic	0.52
CADD	Benign	23
DANN	Uncertain	0.99
Eigen	Pathogenic	0.69
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.78	T
M_CAP	Pathogenic	0.85	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	0.97	D
PhyloP100		4.0
PrimateAI	Uncertain	0.58	T
PROVEAN	Pathogenic	-7.9	D
REVEL	Pathogenic	0.92
Sift	Uncertain	0.027	D
Sift4G	Uncertain	0.018	D
Vest4		0.97
MutPred		0.98		Gain of disorder (P = 0.0037)
MVP		0.99
MPC		0.85
ClinPred		1.0	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.98
Mutation Taster		=4/96	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs121913052; hg19: chr1-196684809;