16-23607883-G-A

Variant names:

• chr16-23607883-G-A
• rs864622193
• NM_024675.4:c.3331C>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1 PM2

The NM_024675.4(PALB2):​c.3331C>T​(p.Pro1111Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1111A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: PALB2 NM_024675.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.58
• Publications: 0 publications found

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]

PALB2 Gene-Disease associations (from GenCC):

• hereditary breast carcinoma

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics
• Fanconi anemia complementation group N

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
• pancreatic cancer, susceptibility to, 3

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• familial ovarian cancer

  Inheritance: AD Classification: MODERATE Submitted by: ClinGen
• Fanconi anemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary nonpolyposis colon cancer

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

PALB2-AS1 (HGNC:58305):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 31 uncertain in NM_024675.4
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024675.4. 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
	PALB2	NM_024675.4	MANE Select	c.3331C>T	p.Pro1111Ser	missense	Exon 12 of 13	NP_078951.2
	PALB2	NM_001407296.1		c.3271C>T	p.Pro1091Ser	missense	Exon 11 of 12	NP_001394225.1
	PALB2	NM_001407297.1		c.3259C>T	p.Pro1087Ser	missense	Exon 11 of 12	NP_001394226.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PALB2	ENST00000261584.9	TSL:1 MANE Select	c.3331C>T	p.Pro1111Ser	missense	Exon 12 of 13	ENSP00000261584.4
	PALB2	ENST00000568219.5	TSL:1	c.2446C>T	p.Pro816Ser	missense	Exon 12 of 13	ENSP00000454703.2
	PALB2	ENST00000561514.3	TSL:5	c.3337C>T	p.Pro1113Ser	missense	Exon 12 of 13	ENSP00000460666.3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Familial cancer of breast (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.41
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.030
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.14	T
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.86	D
M_CAP	Benign	0.028	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Uncertain	-0.13	T
MutationAssessor	Uncertain	2.0	M
PhyloP100		6.6
PrimateAI	Benign	0.42	T
PROVEAN	Pathogenic	-5.9	D
REVEL	Uncertain	0.43
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.019	D
Polyphen		1.0	D
Vest4		0.69
MutPred		0.51		Gain of sheet (P = 0.0477)
MVP		0.92
MPC		0.19
ClinPred		0.97	D
GERP RS		6.1
Varity_R		0.42
gMVP		0.52
Mutation Taster		=40/60	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		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: rs864622193; hg19: chr16-23619204;