rs587784307

Variant names:

• chr21-46399774-A-G
• rs587784307
• NM_006031.6:c.4769A>G

Variant summary

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

The NM_006031.6(PCNT):​c.4769A>G​(p.Asn1590Ser) variant causes a missense 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. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PCNT NM_006031.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.00200
• 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: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P, Orphanet
• Moyamoya disease

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

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 (MetaRNN=0.061246425).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCNT	NM_006031.6	MANE Select	c.4769A>G	p.Asn1590Ser	missense	Exon 25 of 47	NP_006022.3
	PCNT	NM_001315529.2		c.4415A>G	p.Asn1472Ser	missense	Exon 25 of 47	NP_001302458.1	O95613-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCNT	ENST00000359568.10	TSL:1 MANE Select	c.4769A>G	p.Asn1590Ser	missense	Exon 25 of 47	ENSP00000352572.5	O95613-1
	PCNT	ENST00000480896.5	TSL:1	c.4415A>G	p.Asn1472Ser	missense	Exon 25 of 47	ENSP00000511989.1	O95613-2
	PCNT	ENST00000695558.1		c.4802A>G	p.Asn1601Ser	missense	Exon 26 of 48	ENSP00000512015.1	A0A8Q3SHZ3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Microcephalic osteodysplastic primordial dwarfism type II (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	1.6
DANN	Benign	0.78
DEOGEN2	Benign	0.037	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.028	N
LIST_S2	Benign	0.49	T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.061	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.90	L
PhyloP100		0.0020
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-0.57	N
REVEL	Benign	0.035
Sift	Benign	0.067	T
Sift4G	Benign	0.29	T
Polyphen		0.49	P
Vest4		0.092
MutPred		0.18		Gain of phosphorylation at N1590 (P = 0.0313)
MVP		0.40
MPC		0.25
ClinPred		0.090	T
GERP RS		-1.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.026
gMVP		0.032
Mutation Taster		=100/0	polymorphism

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: rs587784307; hg19: chr21-47819688;