1-10433906-A-G

Variant names:

• chr1-10433906-A-G
• rs751433697
• NM_199294.3:c.116A>G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_199294.3(CENPS):​c.116A>G​(p.Glu39Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000082 (0 hom.)
• Consequence: CENPS NM_199294.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.10

Genes affected

CENPS (HGNC:23163): (centromere protein S) This gene was identified in the neuroblastoma tumor suppressor candidate region on chromosome 1p36. It contains a TFIID-31 domain, similar to that found in TATA box-binding protein-associated factor, TAF(II)31, which is required for p53-mediated transcription activation. This gene was expressed at very low levels in neuroblastoma tumors, and was shown to reduce cell growth in neuroblastoma cells, suggesting that it may have a role in a cell death pathway. The protein is a component of multiple complexes, including the Fanconi anemia (FA) core complex, the APITD1/CENPS complex, and the CENPA-CAD (nucleosome distal) complex. Known functions include an involvement with chromatin associations of the FA core complex, and a role in the stable assembly of the outer kinetochore. Alternative splicing of this gene results in multiple transcript variants. Naturally occurring read-through transcripts also exist between this gene and the downstream cortistatin (CORT) gene, as represented in GeneID:100526739. An APITD1-related pseudogene has been identified on chromosome 7. [provided by RefSeq, Nov 2010]

CENPS-CORT (HGNC:38843): (CENPS-CORT readthrough) This locus represents naturally occurring read-through transcription between the neighboring APITD1 (apoptosis-inducing, TAF9-like domain 1) and CORT (cortistatin) genes. Alternative splicing results in multiple transcript variants, two of which encode fusion proteins that share sequence identity with the products of each individual gene. [provided by RefSeq, Aug 2011]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04956737).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CENPS	NM_199294.3	c.116A>G	p.Glu39Gly	missense_variant	Exon 2 of 5	ENST00000309048.8	NP_954988.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CENPS	ENST00000309048.8	c.116A>G	p.Glu39Gly	missense_variant	Exon 2 of 5	1	NM_199294.3	ENSP00000308583.2
CENPS-CORT	ENST00000602787.6	c.116A>G	p.Glu39Gly	missense_variant	Exon 2 of 6	3		ENSP00000473509.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251496 Hom.: 0 AF XY: 0.0000221 AC XY: 3 AN XY: 135922

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000821 AC: 12 AN: 1461884 Hom.: 0 Cov.: 30 AF XY: 0.00000963 AC XY: 7 AN XY: 727244

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000580

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.0000993

GnomAD4 genome Cov.: 32

ExAC AF: 0.0000165 AC: 2

Asia WGS AF: 0.000866 AC: 3 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Feb 03, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.116A>G (p.E39G) alteration is located in exon 2 (coding exon 2) of the APITD1-CORT gene. This alteration results from a A to G substitution at nucleotide position 116, causing the glutamic acid (E) at amino acid position 39 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.070
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.078	.;.;.;T
Eigen	Benign	-0.49
Eigen_PC	Benign	-0.28
FATHMM_MKL	Benign	0.43	N
LIST_S2	Benign	0.61	T;T;T;.
M_CAP	Benign	0.0018	T
MetaRNN	Benign	0.050	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.42	.;.;.;N
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.67	N;N;.;N
REVEL	Benign	0.14
Sift	Benign	1.0	T;T;.;T
Sift4G	Benign	0.56	T;T;T;T
Polyphen		0.0020	.;.;.;B
Vest4		0.20
MutPred		0.35		Loss of stability (P = 0.0301);Loss of stability (P = 0.0301);Loss of stability (P = 0.0301);Loss of stability (P = 0.0301);
MVP		0.014
MPC		0.020
ClinPred		0.35	T
GERP RS		2.5
Varity_R		0.16
gMVP		0.17

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

Publications

LitVar

Other links and lift over

dbSNP: rs751433697; hg19: chr1-10493963;