21-46380713-G-A

Variant names:

• chr21-46380713-G-A
• rs10483082
• NM_006031.6:c.3166-981G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_006031.6(PCNT):​c.3166-981G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0331 in 152,158 control chromosomes in the GnomAD database, including 144 homozygotes. 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: 𝑓 0.033 (144 hom., cov: 30)
• Consequence: PCNT NM_006031.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0260
• Publications: 0 publications found

Genes affected

PCNT (HGNC:16068): (pericentrin) The protein encoded by this gene binds to calmodulin and is expressed in the centrosome. It is an integral component of the pericentriolar material (PCM). The protein contains a series of coiled-coil domains and a highly conserved PCM targeting motif called the PACT domain near its C-terminus. The protein interacts with the microtubule nucleation component gamma-tubulin and is likely important to normal functioning of the centrosomes, cytoskeleton, and cell-cycle progression. Mutations in this gene cause Seckel syndrome-4 and microcephalic osteodysplastic primordial dwarfism type II. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

PCNT Gene-Disease associations (from GenCC):

• microcephalic osteodysplastic primordial dwarfism type II

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Moyamoya disease

  Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.0751 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006031.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCNT	NM_006031.6	MANE Select	c.3166-981G>A		intron	N/A	NP_006022.3
	PCNT	NM_001315529.2		c.2812-981G>A		intron	N/A	NP_001302458.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCNT	ENST00000359568.10	TSL:1 MANE Select	c.3166-981G>A		intron	N/A	ENSP00000352572.5
	PCNT	ENST00000480896.5	TSL:1	c.2812-981G>A		intron	N/A	ENSP00000511989.1
	PCNT	ENST00000695558.1		c.3166-981G>A		intron	N/A	ENSP00000512015.1

Frequencies

GnomAD3 genomes AF: 0.0330 AC: 5019 AN: 152040 Hom.: 140 Cov.: 30

Gnomad AFR AF: 0.0772

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0198

Gnomad ASJ AF: 0.0153

Gnomad EAS AF: 0.00520

Gnomad SAS AF: 0.0818

Gnomad FIN AF: 0.0227

Gnomad MID AF: 0.0223

Gnomad NFE AF: 0.0108

Gnomad OTH AF: 0.0325

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0331 AC: 5039 AN: 152158 Hom.: 144 Cov.: 30 AF XY: 0.0339 AC XY: 2525 AN XY: 74390

African (AFR) AF: 0.0772 AC: 3201 AN: 41474

American (AMR) AF: 0.0198 AC: 302 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.0153 AC: 53 AN: 3470

East Asian (EAS) AF: 0.00521 AC: 27 AN: 5178

South Asian (SAS) AF: 0.0817 AC: 394 AN: 4822

European-Finnish (FIN) AF: 0.0227 AC: 240 AN: 10588

Middle Eastern (MID) AF: 0.0308 AC: 9 AN: 292

European-Non Finnish (NFE) AF: 0.0108 AC: 734 AN: 68020

Other (OTH) AF: 0.0373 AC: 79 AN: 2116

Alfa AF: 0.0273 Hom.: 15

Bravo AF: 0.0332

Asia WGS AF: 0.0720 AC: 251 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	2.3
DANN	Benign	0.36
PhyloP100		0.026
Mutation Taster		=100/0	polymorphism (auto)

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: rs10483082; hg19: chr21-47800628;