Genetic Variant CFI:p.Asp524Gly (chr4-109741074-T-C) – ACMG Classification: Likely_pathogenic (9 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM5PP3_StrongPP5

The NM_000204.5(CFI):c.1571A>G(p.Asp524Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,613,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D524Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

CFI
NM_000204.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 6.79

Publications

6 publications found

Variant links:

Genes affected

CFI (HGNC:5394): (complement factor I) This gene encodes a serine proteinase that is essential for regulating the complement cascade. The encoded preproprotein is cleaved to produce both heavy and light chains, which are linked by disulfide bonds to form a heterodimeric glycoprotein. This heterodimer can cleave and inactivate the complement components C4b and C3b, and it prevents the assembly of the C3 and C5 convertase enzymes. Defects in this gene cause complement factor I deficiency, an autosomal recessive disease associated with a susceptibility to pyogenic infections. Mutations in this gene have been associated with a predisposition to atypical hemolytic uremic syndrome, a disease characterized by acute renal failure, microangiopathic hemolytic anemia and thrombocytopenia. Primary glomerulonephritis with immune deposits and age-related macular degeneration are other conditions associated with mutations of this gene. [provided by RefSeq, Dec 2015]

CFI Gene-Disease associations (from GenCC):

atypical hemolytic-uremic syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
atypical hemolytic-uremic syndrome with I factor anomaly
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
complement factor I deficiency
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
C3 glomerulonephritis
Inheritance: AD Classification: MODERATE Submitted by: ClinGen
Doyne honeycomb retinal dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
age related macular degeneration 13
Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

CFI links:

ENSG00000285330 (HGNC:):

ENSG00000285330 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM1

In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_000204.5

PM5

Other missense variant is known to change same aminoacid residue: Variant chr4-109741074-T-A is described in ClinVar as Pathogenic. ClinVar VariationId is 12122.Status of the report is criteria_provided_single_submitter, 1 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.966

PP5

Variant 4-109741074-T-C is Pathogenic according to our data. Variant chr4-109741074-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 3235979.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000204.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CFI	NM_000204.5	MANE Select	c.1571A>G	p.Asp524Gly	missense	Exon 13 of 13	NP_000195.3	P05156
CFI	NM_001318057.2		c.1595A>G	p.Asp532Gly	missense	Exon 14 of 14	NP_001304986.2	E7ETH0
CFI	NM_001440986.1		c.1592A>G	p.Asp531Gly	missense	Exon 14 of 14	NP_001427915.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CFI	ENST00000394634.7	TSL:1 MANE Select	c.1571A>G	p.Asp524Gly	missense	Exon 13 of 13	ENSP00000378130.2	P05156
ENSG00000285330	ENST00000645635.1		c.1534+1417A>G		intron	N/A	ENSP00000493607.1	A0A2R8Y3M9
CFI	ENST00000963332.1		c.1661A>G	p.Asp554Gly	missense	Exon 14 of 14	ENSP00000633391.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152042

Hom.:

Cov.:

show subpopulations

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461820

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727214

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000899

AC:

AN:

1111970

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152042

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74252

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41386

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10588

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68008

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000113

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Atypical hemolytic-uremic syndrome with I factor anomaly (1)

Atypical hemolytic-uremic syndrome with I factor anomaly;C3463916:Factor I deficiency;C3809523:Age related macular degeneration 13 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.51

BayesDel_noAF

Pathogenic

0.50

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.83

Eigen

Pathogenic

0.95

Eigen_PC

Pathogenic

0.82

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.50

MetaRNN

Pathogenic

0.97

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.7

PhyloP100

6.8

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-6.4

REVEL

Pathogenic

0.97

Sift

Uncertain

0.011

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.91

MVP

0.98

MPC

0.47

ClinPred

1.0

GERP RS

4.8

Varity_R

0.85

gMVP

0.99

Mutation Taster

=5/95

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over