16-23635077-G-C

Position:

• chr16-23635077-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM2 PM5 BP4_Moderate

The NM_024675.4(PALB2):​c.1469C>G​(p.Pro490Arg) 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. 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. P490A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PALB2 NM_024675.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.39

Genes affected

PALB2 (HGNC:26144): (partner and localizer of BRCA2) This gene encodes a protein that may function in tumor suppression. This protein binds to and colocalizes with the breast cancer 2 early onset protein (BRCA2) in nuclear foci and likely permits the stable intranuclear localization and accumulation of BRCA2. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr16-23635076-GGG-TGACTTTAGTTAA is described in ClinVar as [Pathogenic]. Clinvar id is 972096.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP4: Computational evidence support a benign effect (MetaRNN=0.23226205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PALB2	NM_024675.4	c.1469C>G	p.Pro490Arg	missense_variant	4/13	ENST00000261584.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PALB2	ENST00000261584.9	c.1469C>G	p.Pro490Arg	missense_variant	4/13	1	NM_024675.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.14	T;T
Eigen	Uncertain	0.30
Eigen_PC	Benign	0.16
FATHMM_MKL	Benign	0.65	D
LIST_S2	Benign	0.61	T;T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.23	T;T
MetaSVM	Benign	-0.99	T
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.25	T
PROVEAN	Pathogenic	-4.5	D;D
Sift	Uncertain	0.0030	D;D
Sift4G	Uncertain	0.0070	D;D
Polyphen		1.0	.;D
Vest4		0.14
MutPred		0.36		.;Gain of MoRF binding (P = 0.0029);
MVP		0.63
MPC		0.34
ClinPred		0.98	D
GERP RS		5.7
Varity_R		0.15
gMVP		0.27

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-23646398;