NM_153717.3:c.1777-6G>C

Variant names:

• chr4-5793602-G-C
• rs565093715
• NM_153717.3:c.1777-6G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_153717.3(EVC):​c.1777-6G>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,399,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: EVC NM_153717.3 splice_region, intron
• Scores: Splicing: ADA: 0.00002603
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.339
• Publications: 0 publications found

Genes affected

EVC (HGNC:3497): (EvC ciliary complex subunit 1) This gene encodes a protein containing a leucine zipper and a transmembrane domain. This gene has been implicated in both Ellis-van Creveld syndrome (EvC) and Weyers acrodental dysostosis. [provided by RefSeq, Jul 2008]

CRMP1 (HGNC:2365): (collapsin response mediator protein 1) This gene encodes a member of a family of cytosolic phosphoproteins expressed exclusively in the nervous system. The encoded protein is thought to be a part of the semaphorin signal transduction pathway implicated in semaphorin-induced growth cone collapse during neural development. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153717.3. 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
	EVC	NM_153717.3	MANE Select	c.1777-6G>C		splice_region intron	N/A	NP_714928.1
	EVC	NM_001306090.2		c.1777-6G>C		splice_region intron	N/A	NP_001293019.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EVC	ENST00000264956.11	TSL:1 MANE Select	c.1777-6G>C		splice_region intron	N/A	ENSP00000264956.6
	EVC	ENST00000506240.1	TSL:3	n.89G>C		non_coding_transcript_exon	Exon 1 of 2
	CRMP1	ENST00000506216.5	TSL:5	n.1647+31892C>G		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.15e-7 AC: 1 AN: 1399032 Hom.: 0 Cov.: 29 AF XY: 0.00000145 AC XY: 1 AN XY: 690086

African (AFR) AF: 0.00 AC: 0 AN: 31604

American (AMR) AF: 0.00 AC: 0 AN: 35740

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25178

East Asian (EAS) AF: 0.00 AC: 0 AN: 35762

South Asian (SAS) AF: 0.0000126 AC: 1 AN: 79224

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49318

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5586

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1078632

Other (OTH) AF: 0.00 AC: 0 AN: 57988

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.33
DANN	Benign	0.65
PhyloP100		-0.34

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000026
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: rs565093715; hg19: chr4-5795329;