1-243136134-T-C

Variant names:

• chr1-243136134-T-C
• rs12047774
• NM_014812.3:c.4319+9A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_014812.3(CEP170):​c.4319+9A>G variant causes a intron 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: 7.6e-7 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CEP170 NM_014812.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.385
• Publications: 2 publications found

Genes affected

CEP170 (HGNC:28920): (centrosomal protein 170) The product of this gene is a component of the centrosome, a non-membraneous organelle that functions as the major microtubule-organizing center in animal cells. During interphase, the encoded protein localizes to the sub-distal appendages of mature centrioles, which are microtubule-based structures thought to help organize centrosomes. During mitosis, the protein associates with spindle microtubules near the centrosomes. The protein interacts with and is phosphorylated by polo-like kinase 1, and functions in maintaining microtubule organization and cell morphology. The human genome contains a putative transcribed pseudogene. Several alternatively spliced transcript variants of this gene have been found, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Jul 2008]

ENSG00000227230 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEP170	NM_014812.3	c.4319+9A>G		intron_variant	Intron 17 of 19	ENST00000366542.6	NP_055627.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP170	ENST00000366542.6	c.4319+9A>G		intron_variant	Intron 17 of 19	5	NM_014812.3	ENSP00000355500.1
CEP170	ENST00000366544.6	c.4025+9A>G		intron_variant	Intron 16 of 18	5		ENSP00000355502.1
CEP170	ENST00000366543.5	c.3947+9A>G		intron_variant	Intron 16 of 18	5		ENSP00000355501.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 7.62e-7 AC: 1 AN: 1312106 Hom.: 0 Cov.: 24 AF XY: 0.00000154 AC XY: 1 AN XY: 650000

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 28190

American (AMR) AF: 0.00 AC: 0 AN: 22798

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23024

East Asian (EAS) AF: 0.00 AC: 0 AN: 35290

South Asian (SAS) AF: 0.00 AC: 0 AN: 72094

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 48924

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5488

European-Non Finnish (NFE) AF: 9.79e-7 AC: 1 AN: 1021480

Other (OTH) AF: 0.00 AC: 0 AN: 54818

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 21

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	4.3
DANN	Benign	0.59
PhyloP100		-0.39

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: rs12047774; hg19: chr1-243299436;