6-43037693-G-A

Variant names:

• chr6-43037693-G-A
• rs1388307296
• NM_014780.5:c.5092C>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_014780.5(CUL7):​c.5092C>T​(p.Arg1698Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000187 in 1,553,904 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1698Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000020 (0 hom.)
• Consequence: CUL7 NM_014780.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.88
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CUL7	NM_014780.5	c.5092C>T	p.Arg1698Trp	missense_variant	Exon 26 of 26	ENST00000265348.9	NP_055595.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CUL7	ENST00000265348.9	c.5092C>T	p.Arg1698Trp	missense_variant	Exon 26 of 26	1	NM_014780.5	ENSP00000265348.4

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152174 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000125 AC: 2 AN: 160620 AF XY: 0.0000118

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000158

Gnomad OTH exome AF: 0.000222

GnomAD4 exome AF: 0.0000200 AC: 28 AN: 1401730 Hom.: 0 Cov.: 31 AF XY: 0.0000231 AC XY: 16 AN XY: 691646

African (AFR) AF: 0.00 AC: 0 AN: 31834

American (AMR) AF: 0.00 AC: 0 AN: 35848

Ashkenazi Jewish (ASJ) AF: 0.0000397 AC: 1 AN: 25190

East Asian (EAS) AF: 0.00 AC: 0 AN: 36064

South Asian (SAS) AF: 0.00 AC: 0 AN: 79442

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49480

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5686

European-Non Finnish (NFE) AF: 0.0000241 AC: 26 AN: 1080058

Other (OTH) AF: 0.0000172 AC: 1 AN: 58128

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152174 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74342

African (AFR) AF: 0.0000241 AC: 1 AN: 41432

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68040

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.0000480 Hom.: 0

Bravo AF: 0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

May 28, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.5092C>T (p.R1698W) alteration is located in exon 26 (coding exon 25) of the CUL7 gene. This alteration results from a C to T substitution at nucleotide position 5092, causing the arginine (R) at amino acid position 1698 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.33	T;.
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Uncertain	0.91	D;D
M_CAP	Uncertain	0.19	D
MetaRNN	Uncertain	0.52	D;D
MetaSVM	Uncertain	0.19	D
MutationAssessor	Benign	2.0	M;.
PhyloP100		2.9
PrimateAI	Uncertain	0.72	T
PROVEAN	Benign	-2.3	N;N
REVEL	Uncertain	0.49
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	D;.
Vest4		0.66
MutPred		0.35		Loss of disorder (P = 0.0097);.;
MVP		0.82
MPC		0.78
ClinPred		0.81	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.20
gMVP		0.56
Mutation Taster		=92/8	polymorphism

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

Other links and lift over

dbSNP: rs1388307296; hg19: chr6-43005431;