4-168878161-CCCGCCA-CCCGCCACCGCCA

Variant names:

• chr4-168878161-C-CCCGCCA
• rs864622087
• ENST00000507735.6:c.273_278dupGCCACC

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP3

The NM_001166110.2(PALLD):​c.273_278dupGCCACC​(p.Pro92_Pro93dup) variant causes a disruptive inframe insertion change. The variant allele was found at a frequency of 0.00000658 in 151,952 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: PALLD NM_001166110.2 disruptive_inframe_insertion
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.05
• Publications: 0 publications found

Genes affected

PALLD (HGNC:17068): (palladin, cytoskeletal associated protein) This gene encodes a cytoskeletal protein that is required for organizing the actin cytoskeleton. The protein is a component of actin-containing microfilaments, and it is involved in the control of cell shape, adhesion, and contraction. Polymorphisms in this gene are associated with a susceptibility to pancreatic cancer type 1, and also with a risk for myocardial infarction. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

CBR4 (HGNC:25891): (carbonyl reductase 4) Enables several functions, including 3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity; NADPH binding activity; and NADPH dehydrogenase (quinone) activity. Involved in fatty acid biosynthetic process; glycoside metabolic process; and protein tetramerization. Located in mitochondrial matrix. Part of oxidoreductase complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP3: Nonframeshift variant in repetitive region in NM_001166110.2

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001166110.2. 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
	PALLD	NM_001166108.2	MANE Select	c.1965-12758_1965-12753dupGCCACC		intron	N/A	NP_001159580.1
	PALLD	NM_001166110.2		c.273_278dupGCCACC	p.Pro92_Pro93dup	disruptive_inframe_insertion	Exon 2 of 12	NP_001159582.1
	PALLD	NM_016081.4		c.1965-12758_1965-12753dupGCCACC		intron	N/A	NP_057165.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PALLD	ENST00000507735.6	TSL:1	c.273_278dupGCCACC	p.Pro92_Pro93dup	disruptive_inframe_insertion	Exon 2 of 12	ENSP00000424016.1
	PALLD	ENST00000505667.6	TSL:1 MANE Select	c.1965-12758_1965-12753dupGCCACC		intron	N/A	ENSP00000425556.1
	PALLD	ENST00000261509.10	TSL:1	c.1965-12758_1965-12753dupGCCACC		intron	N/A	ENSP00000261509.6

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151952 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 38

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151952 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74226

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000242 AC: 1 AN: 41388

American (AMR) AF: 0.00 AC: 0 AN: 15260

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5170

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10574

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67936

Other (OTH) AF: 0.00 AC: 0 AN: 2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Pancreatic adenocarcinoma (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		7.1
Mutation Taster		=69/31	polymorphism

Splicing

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

Other links and lift over

dbSNP: rs864622087; hg19: chr4-169799312;