Genetic Variant RFWD3:p.Ile564Leu (chr16-74630845-T-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_018124.4(RFWD3):c.1690A>C(p.Ile564Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign 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. I564V) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RFWD3
NM_018124.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.57

Publications

0 publications found

Variant links:

Genes affected

RFWD3 (HGNC:25539): (ring finger and WD repeat domain 3) Enables MDM2/MDM4 family protein binding activity; p53 binding activity; and ubiquitin protein ligase activity. Involved in several processes, including DNA metabolic process; regulation of cell cycle phase transition; and response to ionizing radiation. Located in nucleoplasm and site of DNA damage. Colocalizes with site of double-strand break. Implicated in Fanconi anemia. [provided by Alliance of Genome Resources, Apr 2022]

RFWD3 Gene-Disease associations (from GenCC):

Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Fanconi anemia, complementation group W
Inheritance: AR, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
Tourette syndrome
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

RFWD3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.35962856).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RFWD3	NM_018124.4 link	c.1690A>C	p.Ile564Leu	missense_variant	Exon 10 of 13	ENST00000361070.9	NP_060594.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RFWD3	ENST00000361070.9 link	c.1690A>C	p.Ile564Leu	missense_variant	Exon 10 of 13	1	NM_018124.4	ENSP00000354361.4	Q6PCD5
RFWD3	ENST00000571750.5 link	c.1690A>C	p.Ile564Leu	missense_variant	Exon 11 of 14	2		ENSP00000460049.1	Q6PCD5
RFWD3	ENST00000575154.1 link	n.324A>C		non_coding_transcript_exon_variant	Exon 2 of 3	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461600

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727110

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44680

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.00

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111870

Other (OTH)

AF:

0.00

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.40

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.033

T;T

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.86

.;D

M_CAP

Benign

0.014

MetaRNN

Benign

0.36

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

L;L

PhyloP100

1.6

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.7

N;.

REVEL

Benign

0.053

Sift

Benign

0.057

T;.

Sift4G

Uncertain

0.035

D;D

Polyphen

0.20

B;B

Vest4

0.45

MutPred

0.47

Gain of sheet (P = 0.0049);Gain of sheet (P = 0.0049);

MVP

0.40

ClinPred

0.56

GERP RS

3.4

Varity_R

0.37

gMVP

0.42

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over