chr4-168898656-T-G

Variant names:

• chr4-168898656-T-G
• rs150764613
• NM_001166108.2:c.2414T>G

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_001166108.2(PALLD):​c.2414T>G​(p.Ile805Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000378 in 1,614,036 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. I805T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000099 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000031 (0 hom.)
• Consequence: PALLD NM_001166108.2 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 5.13
• Publications: 1 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: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.20036995).
• BS2: High AC in GnomAd4 at 15 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001166108.2. 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.2414T>G	p.Ile805Ser	missense	Exon 14 of 22	NP_001159580.1
	PALLD	NM_016081.4		c.2363T>G	p.Ile788Ser	missense	Exon 13 of 21	NP_057165.3
	PALLD	NM_001166109.2		c.1217T>G	p.Ile406Ser	missense	Exon 12 of 19	NP_001159581.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PALLD	ENST00000505667.6	TSL:1 MANE Select	c.2414T>G	p.Ile805Ser	missense	Exon 14 of 22	ENSP00000425556.1
	PALLD	ENST00000261509.10	TSL:1	c.2363T>G	p.Ile788Ser	missense	Exon 13 of 21	ENSP00000261509.6
	PALLD	ENST00000507735.6	TSL:1	c.902T>G	p.Ile301Ser	missense	Exon 5 of 12	ENSP00000424016.1

Frequencies

GnomAD3 genomes AF: 0.0000986 AC: 15 AN: 152176 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000589

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: 0.0000294

Gnomad OTH AF: 0.00143

GnomAD2 exomes AF: 0.0000756 AC: 19 AN: 251352 AF XY: 0.0000589

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000405

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000440

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000315 AC: 46 AN: 1461860 Hom.: 0 Cov.: 31 AF XY: 0.0000289 AC XY: 21 AN XY: 727238

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000402 AC: 18 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000198 AC: 22 AN: 1111992

Other (OTH) AF: 0.0000993 AC: 6 AN: 60394

GnomAD4 genome AF: 0.0000986 AC: 15 AN: 152176 Hom.: 0 Cov.: 32 AF XY: 0.000108 AC XY: 8 AN XY: 74338

African (AFR) AF: 0.0000241 AC: 1 AN: 41444

American (AMR) AF: 0.000589 AC: 9 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68036

Other (OTH) AF: 0.00143 AC: 3 AN: 2092

Alfa AF: 0.000129 Hom.: 0

Bravo AF: 0.000140

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Uncertain:1

Sep 13, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.I788S variant (also known as c.2363T>G), located in coding exon 12 of the PALLD gene, results from a T to G substitution at nucleotide position 2363. The isoleucine at codon 788 is replaced by serine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

Pancreatic adenocarcinoma Uncertain:1

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 301 of the PALLD protein (p.Ile301Ser). This variant is present in population databases (rs150764613, gnomAD 0.04%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with PALLD-related conditions. ClinVar contains an entry for this variant (Variation ID: 136015). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Benign	-0.080	T
BayesDel_noAF	Uncertain	-0.030
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.12	T
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.067	D
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-0.52	T
PhyloP100		5.1
PrimateAI	Uncertain	0.51	T
PROVEAN	Uncertain	-3.0	D
REVEL	Uncertain	0.31
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0050	D
Vest4		0.86
MVP		0.62
MPC		0.91
ClinPred		0.32	T
GERP RS		5.5
gMVP		0.86
Mutation Taster		=53/47	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: rs150764613; hg19: chr4-169819807;