6-43049665-G-T

Variant names:

• chr6-43049665-G-T
• rs730880263
• NM_014780.5:c.1570-3C>A

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_014780.5(CUL7):​c.1570-3C>A variant causes a splice region, intron 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. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CUL7 NM_014780.5 splice_region, intron
• Scores: Splicing: ADA: 0.9998
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 1.16
• 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]

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

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant 6-43049665-G-T is Pathogenic according to our data. Variant chr6-43049665-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 1619.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014780.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CUL7	NM_014780.5	MANE Select	c.1570-3C>A		splice_region intron	N/A	NP_055595.2
	CUL7	NM_001168370.2		c.1666-3C>A		splice_region intron	N/A	NP_001161842.2
	CUL7	NM_001374872.1		c.1666-3C>A		splice_region intron	N/A	NP_001361801.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CUL7	ENST00000265348.9	TSL:1 MANE Select	c.1570-3C>A		splice_region intron	N/A	ENSP00000265348.4
	CUL7	ENST00000683160.1		n.2249C>A		non_coding_transcript_exon	Exon 6 of 6
	CUL7	ENST00000683493.1		n.2008C>A		non_coding_transcript_exon	Exon 5 of 5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	3M syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.41
CADD	Benign	22
DANN	Benign	0.76
PhyloP100		1.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Mutation Taster		=12/88	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.91
SpliceAI score (max)		0.63		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.63		Position offset: 32
DS_AL_spliceai		0.53		Position offset: -3

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

Other links and lift over

dbSNP: rs730880263; hg19: chr6-43017403;