rs7774330

Positions:

• chr6-43048549-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_014780.5(CUL7):​c.1846A>G​(p.Ser616Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0021 in 1,613,938 control chromosomes in the GnomAD database, including 69 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.012 (39 hom., cov: 32)
  • Exomes 𝑓: 0.0011 (30 hom.)
• Consequence: CUL7 NM_014780.5 missense
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -0.314

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]

KLC4 (HGNC:21624): (kinesin light chain 4) Predicted to be located in cytoplasm and microtubule. Predicted to be part of kinesin complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0017990172).
• BP6: Variant 6-43048549-T-C is Benign according to our data. Variant chr6-43048549-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 356844.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0115 (1754/152240) while in subpopulation AFR AF= 0.0394 (1639/41550). AF 95% confidence interval is 0.0379. There are 39 homozygotes in gnomad4. There are 852 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 39 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CUL7	NM_014780.5	c.1846A>G	p.Ser616Gly	missense_variant	8/26	ENST00000265348.9	NP_055595.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CUL7	ENST00000265348.9	c.1846A>G	p.Ser616Gly	missense_variant	8/26	1	NM_014780.5	ENSP00000265348	P3

Frequencies

GnomAD3 genomes AF: 0.0115 AC: 1748 AN: 152122 Hom.: 38 Cov.: 32

Gnomad AFR AF: 0.0394

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00576

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000132

Gnomad OTH AF: 0.00574

GnomAD3 exomes AF: 0.00288 AC: 721 AN: 250012 Hom.: 11 AF XY: 0.00235 AC XY: 319 AN XY: 135726

Gnomad AFR exome AF: 0.0399

Gnomad AMR exome AF: 0.00211

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000972

Gnomad OTH exome AF: 0.00115

GnomAD4 exome AF: 0.00112 AC: 1633 AN: 1461698 Hom.: 30 Cov.: 31 AF XY: 0.00101 AC XY: 734 AN XY: 727132

Gnomad4 AFR exome AF: 0.0376

Gnomad4 AMR exome AF: 0.00239

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000325

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000207

Gnomad4 OTH exome AF: 0.00323

GnomAD4 genome AF: 0.0115 AC: 1754 AN: 152240 Hom.: 39 Cov.: 32 AF XY: 0.0114 AC XY: 852 AN XY: 74448

Gnomad4 AFR AF: 0.0394

Gnomad4 AMR AF: 0.00576

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00104

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000132

Gnomad4 OTH AF: 0.00568

Alfa AF: 0.00298 Hom.: 6

Bravo AF: 0.0132

ESP6500AA AF: 0.0341 AC: 150

ESP6500EA AF: 0.000233 AC: 2

ExAC AF: 0.00358 AC: 435

Asia WGS AF: 0.00173 AC: 6 AN: 3478

EpiCase AF: 0.0000546

EpiControl AF: 0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:3

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 29, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics	Feb 23, 2017	- -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

3M syndrome 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.071
BayesDel_addAF	Benign	-0.55	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	10
DANN	Benign	0.96
DEOGEN2	Benign	0.14	T;.
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.015	N
LIST_S2	Benign	0.50	T;T
MetaRNN	Benign	0.0018	T;T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	1.8	L;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-0.31	N;N
REVEL	Benign	0.14
Sift	Benign	0.081	T;T
Sift4G	Benign	0.50	T;T
Polyphen		0.0	B;.
Vest4		0.055
MVP		0.73
MPC		0.18
ClinPred		0.0016	T
GERP RS		-3.7
Varity_R		0.028
gMVP		0.16

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

LitVar

Other links and lift over

dbSNP: rs7774330; hg19: chr6-43016287;