Genetic Variant CUL7:p.Leu1671Ile (chr6-43037774-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014780.5(CUL7):c.5011C>A(p.Leu1671Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L1671F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CUL7
NM_014780.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.84

Publications

0 publications found

Variant links:

Genes affected

CUL7 (HGNC:21024): (cullin 7) The protein encoded by this gene is a component of an E3 ubiquitin-protein ligase complex. The encoded protein interacts with TP53, CUL9, and FBXW8 proteins. Defects in this gene are a cause of 3M syndrome type 1 (3M1). Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]

CUL7 Gene-Disease associations (from GenCC):

3M syndrome 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
3-M syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CUL7 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.24532002).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CUL7	NM_014780.5 link	c.5011C>A	p.Leu1671Ile	missense_variant	Exon 26 of 26	ENST00000265348.9	NP_055595.2	Q14999-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CUL7	ENST00000265348.9 link	c.5011C>A	p.Leu1671Ile	missense_variant	Exon 26 of 26	1	NM_014780.5	ENSP00000265348.4		Q14999-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1440894

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

714770

African (AFR)

AF:

0.00

AC:

AN:

33138

American (AMR)

AF:

0.00

AC:

AN:

40850

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25616

East Asian (EAS)

AF:

0.00

AC:

AN:

38764

South Asian (SAS)

AF:

0.00

AC:

AN:

83272

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51982

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5740

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1101880

Other (OTH)

AF:

0.00

AC:

AN:

59652

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jan 06, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is not present in population databases (gnomAD no frequency). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with CUL7-related conditions. This sequence change replaces leucine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1671 of the CUL7 protein (p.Leu1671Ile). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Uncertain

0.020

BayesDel_noAF

Benign

-0.21

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

T;.

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Benign

0.61

LIST_S2

Benign

0.77

T;T

M_CAP

Benign

0.037

MetaRNN

Benign

0.25

T;T

MetaSVM

Benign

-0.65

MutationAssessor

Benign

1.8

L;.

PhyloP100

1.8

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-0.34

N;N

REVEL

Uncertain

0.31

Sift

Uncertain

0.025

D;D

Sift4G

Benign

0.25

T;T

Polyphen

0.89

P;.

Vest4

0.36

MutPred

0.14

Loss of catalytic residue at L1671 (P = 0.0018);.;

MVP

0.70

MPC

0.77

ClinPred

0.73

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.055

gMVP

0.17

Mutation Taster

=94/6

polymorphism

(source)

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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over