NM_006031.6:c.7130C>A

Variant names:

• chr21-46422075-C-A
• NM_006031.6:c.7130C>A

Variant summary

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

The NM_006031.6(PCNT):​c.7130C>A​(p.Pro2377Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,618 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. 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. P2377L) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PCNT NM_006031.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.50

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]

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=0.02361539).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PCNT	NM_006031.6	c.7130C>A	p.Pro2377Gln	missense_variant	Exon 32 of 47	ENST00000359568.10	NP_006022.3
PCNT	NM_001315529.2	c.6776C>A	p.Pro2259Gln	missense_variant	Exon 32 of 47		NP_001302458.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PCNT	ENST00000359568.10	c.7130C>A	p.Pro2377Gln	missense_variant	Exon 32 of 47	1	NM_006031.6	ENSP00000352572.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461618 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727096

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.092
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.0050
DANN	Benign	0.58
DEOGEN2	Benign	0.013	T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.0032	N
LIST_S2	Benign	0.36	T
M_CAP	Benign	0.0070	T
MetaRNN	Benign	0.024	T
MetaSVM	Benign	-0.89	T
MutationAssessor	Benign	-0.30	N
PrimateAI	Benign	0.26	T
PROVEAN	Benign	1.7	N
REVEL	Benign	0.044
Sift	Benign	0.64	T
Sift4G	Benign	0.56	T
Polyphen		0.0070	B
Vest4		0.075
MutPred		0.096		Loss of loop (P = 0.0203);
MVP		0.15
MPC		0.42
ClinPred		0.069	T
GERP RS		-7.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.015
gMVP		0.071

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr21-47841989;