rs2019727

Positions:

• chr1-196705584-T-A
• chr1-196705584-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000186.4(CFH):​c.1337-8151T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.236 in 152,086 control chromosomes in the GnomAD database, including 4,968 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.24 (4968 hom., cov: 32)
• Consequence: CFH NM_000186.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.38

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 Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.354 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CFH	NM_000186.4	c.1337-8151T>A		intron_variant		ENST00000367429.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CFH	ENST00000367429.9	c.1337-8151T>A		intron_variant		1	NM_000186.4	P2

Frequencies

GnomAD3 genomes AF: 0.236 AC: 35803 AN: 151966 Hom.: 4969 Cov.: 32

Gnomad AFR AF: 0.359

Gnomad AMI AF: 0.122

Gnomad AMR AF: 0.171

Gnomad ASJ AF: 0.270

Gnomad EAS AF: 0.0769

Gnomad SAS AF: 0.327

Gnomad FIN AF: 0.130

Gnomad MID AF: 0.341

Gnomad NFE AF: 0.196

Gnomad OTH AF: 0.255

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.236 AC: 35818 AN: 152086 Hom.: 4968 Cov.: 32 AF XY: 0.235 AC XY: 17454 AN XY: 74348

Gnomad4 AFR AF: 0.359

Gnomad4 AMR AF: 0.170

Gnomad4 ASJ AF: 0.270

Gnomad4 EAS AF: 0.0767

Gnomad4 SAS AF: 0.326

Gnomad4 FIN AF: 0.130

Gnomad4 NFE AF: 0.196

Gnomad4 OTH AF: 0.254

Alfa AF: 0.201 Hom.: 456

Bravo AF: 0.239

Asia WGS AF: 0.206 AC: 715 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.88
DANN	Benign	0.44

Splicing

Name	Calibrated prediction	Score	Prediction
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

Other links and lift over

dbSNP: rs2019727; hg19: chr1-196674714;