NM_173550.4:c.218A>T

Variant names:

• chr9-15578889-A-T
• rs756983997
• NM_173550.4:c.218A>T

Variant summary

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

The NM_173550.4(CCDC171):​c.218A>T​(p.Glu73Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000684 in 1,461,636 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: CCDC171 NM_173550.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.81
• Publications: 0 publications found

Genes affected

CCDC171 (HGNC:29828): (coiled-coil domain containing 171)

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_173550.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCDC171	NM_173550.4	MANE Select	c.218A>T	p.Glu73Val	missense	Exon 4 of 26	NP_775821.2
	CCDC171	NM_001355547.1		c.218A>T	p.Glu73Val	missense	Exon 3 of 25	NP_001342476.1	Q6TFL3-4
	CCDC171	NM_001348002.2		c.-224A>T		5_prime_UTR	Exon 4 of 27	NP_001334931.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCDC171	ENST00000380701.8	TSL:1 MANE Select	c.218A>T	p.Glu73Val	missense	Exon 4 of 26	ENSP00000370077.3	Q6TFL3-1
	CCDC171	ENST00000905141.1		c.218A>T	p.Glu73Val	missense	Exon 4 of 26	ENSP00000575200.1
	CCDC171	ENST00000971281.1		c.218A>T	p.Glu73Val	missense	Exon 4 of 26	ENSP00000641340.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000239 AC: 6 AN: 251058 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000272

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000684 AC: 10 AN: 1461636 Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5 AN XY: 727126

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.0000224 AC: 1 AN: 44702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.0000756 AC: 3 AN: 39670

South Asian (SAS) AF: 0.00 AC: 0 AN: 86230

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111884

Other (OTH) AF: 0.0000994 AC: 6 AN: 60380

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ExAC AF: 0.0000412 AC: 5

Asia WGS AF: 0.000866 AC: 3 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.31
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.14
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.20	T
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.81	T
M_CAP	Benign	0.030	D
MetaRNN	Uncertain	0.61	D
MetaSVM	Benign	-0.57	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		4.8
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.23
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0060	D
Polyphen		1.0	D
Vest4		0.76
MutPred		0.40		Loss of disorder (P = 0.0133)
MVP		0.26
ClinPred		0.93	D
GERP RS		5.2
Varity_R		0.24
gMVP		0.093
Mutation Taster		=90/10	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: rs756983997; hg19: chr9-15578887;