14-24306522-G-C

Variant names:

• chr14-24306522-G-C
• rs1459313856
• NM_001393339.1:c.188C>G

Variant summary

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

The NM_001393339.1(CIDEB):​c.188C>G​(p.Ala63Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 14/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A63E) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CIDEB NM_001393339.1 missense, splice_region
• Scores: Splicing: ADA: 0.08126
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.33
• Publications: 0 publications found

Genes affected

CIDEB (HGNC:1977): (cell death inducing DFFA like effector b) Enables identical protein binding activity. Involved in activation of cysteine-type endopeptidase activity; positive regulation of cell death; and positive regulation of release of cytochrome c from mitochondria. Acts upstream of or within apoptotic process. Located in cytosol and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

NOP9 (HGNC:19826): (NOP9 nucleolar protein) Enables RNA binding activity. Predicted to be involved in ribosome biogenesis. Predicted to be part of 90S preribosome and preribosome, small subunit precursor. Predicted to be active in nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

LTB4R2 (HGNC:19260): (leukotriene B4 receptor 2) Predicted to enable G protein-coupled peptide receptor activity and leukotriene B4 receptor activity. Predicted to be involved in inflammatory response and neuropeptide signaling pathway. Predicted to act upstream of or within keratinocyte migration and signal transduction. Located in nucleoplasm and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

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_001393339.1. 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
	CIDEB	NM_001393339.1	MANE Select	c.188C>G	p.Ala63Gly	missense splice_region	Exon 3 of 5	NP_001380268.1	Q9UHD4
	NOP9	NM_174913.3	MANE Select	c.*1427G>C		3_prime_UTR	Exon 10 of 10	NP_777573.1	Q86U38-1
	CIDEB	NM_001318807.3		c.188C>G	p.Ala63Gly	missense splice_region	Exon 6 of 8	NP_001305736.1	Q9UHD4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CIDEB	ENST00000554411.6	TSL:1 MANE Select	c.188C>G	p.Ala63Gly	missense splice_region	Exon 3 of 5	ENSP00000451089.1	Q9UHD4
	CIDEB	ENST00000258807.5	TSL:1	c.188C>G	p.Ala63Gly	missense splice_region	Exon 5 of 7	ENSP00000258807.5	Q9UHD4
	NOP9	ENST00000267425.8	TSL:1 MANE Select	c.*1427G>C		3_prime_UTR	Exon 10 of 10	ENSP00000267425.3	Q86U38-1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Benign	-0.095	T
BayesDel_noAF	Benign	-0.37
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.56	D
Eigen	Benign	-0.19
Eigen_PC	Benign	-0.11
FATHMM_MKL	Uncertain	0.93	D
M_CAP	Benign	0.012	T
MetaRNN	Uncertain	0.43	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.4	L
PhyloP100		3.3
PrimateAI	Benign	0.42	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.13
Sift	Uncertain	0.0080	D
Sift4G	Pathogenic	0.0010	D
Polyphen		0.14	B
Vest4		0.33
MutPred		0.69		Loss of helix (P = 0.0444)
MVP		0.57
MPC		0.50
ClinPred		0.92	D
GERP RS		3.9
PromoterAI		-0.016	Neutral
Varity_R		0.13
gMVP		0.47
Mutation Taster		=64/36	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.081
dbscSNV1_RF	Benign	0.31
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: rs1459313856; hg19: chr14-24775728;