16-75294039-G-C

Position:

• chr16-75294039-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006324.3(CFDP1):​c.813C>G​(p.Tyr271Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: CFDP1 NM_006324.3 stop_gained
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.10

Genes affected

CFDP1 (HGNC:1873): (craniofacial development protein 1) Predicted to act upstream of or within several processes, including cell adhesion; negative regulation of fibroblast apoptotic process; and regulation of cell shape. Predicted to be located in kinetochore. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CFDP1	NM_006324.3	c.813C>G	p.Tyr271Ter	stop_gained	7/7	ENST00000283882.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CFDP1	ENST00000283882.4	c.813C>G	p.Tyr271Ter	stop_gained	7/7	1	NM_006324.3	P1
CFDP1	ENST00000562602.1	n.568C>G		non_coding_transcript_exon_variant	3/3	3
CFDP1	ENST00000564793.1	n.324C>G		non_coding_transcript_exon_variant	3/3	3
CFDP1	ENST00000570103.5	n.322C>G		non_coding_transcript_exon_variant	3/3	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

CFDP1-related disorder Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 18, 2023

The CFDP1 c.813C>G variant is predicted to result in premature protein termination (p.Tyr271*). This variant occurs within the terminal exon of CFDP1. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. Loss of function has not been a well documented cause of CFDP1-related disease. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.58	D
BayesDel_noAF	Pathogenic	0.60
CADD	Pathogenic	46
DANN	Uncertain	1.0
Eigen	Pathogenic	0.69
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Uncertain	0.89	D
MutationTaster	Benign	1.0	D
Vest4		0.87
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.65		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.65		Position offset: -1

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-75327937;