NM_020893.6:c.1416A>T

Variant names:

• chr9-97325063-A-T
• rs3747496
• NM_020893.6:c.1416A>T

Variant summary

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

The NM_020893.6(CCDC180):​c.1416A>T​(p.Ser472Ser) variant causes a synonymous 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CCDC180 NM_020893.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.02
• Publications: 22 publications found

Genes affected

CCDC180 (HGNC:29303): (coiled-coil domain containing 180) The protein encoded by this gene contains a coiled-coil domain. Alternative splicing results in multiple transcript variants encoding different isoforms. A single nucleotide polymorphism (SNP) in this gene has been associated with increased susceptibility to Behcet's Disease (PMID: 19442274). [provided by RefSeq, Dec 2016]

SUGT1P4-STRA6LP-CCDC180 (HGNC:53835): (SUGT1P4-STRA6LP-CCDC180 readthrough) This locus represents a set of read-through transcripts spanning an upstream pseudogene (GeneID:100499484) extending into a downstream protein-coding locus (GeneID:100499483). All of the read-through transcripts are candidates for nonsense-mediated decay (NMD), so they are not thought to express a protein. [provided by RefSeq, Aug 2010]

ACMG classification

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

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020893.6. 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
	CCDC180	NM_020893.6	MANE Select	c.1416A>T	p.Ser472Ser	synonymous	Exon 14 of 37	NP_065944.3
	CCDC180	NM_001348010.4		c.1407A>T	p.Ser469Ser	synonymous	Exon 15 of 21	NP_001334939.2
	SUGT1P4-STRA6LP-CCDC180	NR_036527.1		n.2971A>T		non_coding_transcript_exon	Exon 28 of 49

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCDC180	ENST00000529487.3	TSL:1 MANE Select	c.1416A>T	p.Ser472Ser	synonymous	Exon 14 of 37	ENSP00000434727.2
	CCDC180	ENST00000494917.6	TSL:1	n.1619A>T		non_coding_transcript_exon	Exon 15 of 20
	SUGT1P4-STRA6LP-CCDC180	ENST00000375206.6	TSL:2	n.2900A>T		non_coding_transcript_exon	Exon 28 of 49

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1461486 Hom.: 0 Cov.: 40 AF XY: 0.00 AC XY: 0 AN XY: 727014

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44700

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39676

South Asian (SAS) AF: 0.00 AC: 0 AN: 86212

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53364

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111794

Other (OTH) AF: 0.00 AC: 0 AN: 60374

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 30098

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	3.2
DANN	Benign	0.55
PhyloP100		-1.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.30		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.30		Position offset: 22

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

Other links and lift over

dbSNP: rs3747496; hg19: chr9-100087345;