rs587780760

Variant names:

• chr4-168878328-T-G
• rs587780760
• ENST00000507735.6:c.437T>G

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS2

The NM_001166110.2(PALLD):​c.437T>G​(p.Leu146Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00073 in 1,523,130 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 10/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00098 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00070 (1 hom.)
• Consequence: PALLD NM_001166110.2 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4
• Conservation: PhyloP100: 5.85

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

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.008223742).
• BP6: Variant 4-168878328-T-G is Benign according to our data. Variant chr4-168878328-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 136007.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=2}.
• BS2: High AC in GnomAd4 at 149 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PALLD	NM_001166108.2	c.1965-12594T>G		intron_variant	Intron 10 of 21	ENST00000505667.6	NP_001159580.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PALLD	ENST00000505667.6	c.1965-12594T>G		intron_variant	Intron 10 of 21	1	NM_001166108.2	ENSP00000425556.1

Frequencies

GnomAD3 genomes AF: 0.000979 AC: 149 AN: 152156 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00152

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00190

Gnomad ASJ AF: 0.00749

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0158

Gnomad NFE AF: 0.000338

Gnomad OTH AF: 0.000478

GnomAD3 exomes AF: 0.00101 AC: 120 AN: 118920 Hom.: 0 AF XY: 0.000948 AC XY: 62 AN XY: 65378

Gnomad AFR exome AF: 0.00107

Gnomad AMR exome AF: 0.000820

Gnomad ASJ exome AF: 0.00804

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000478

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000611

Gnomad OTH exome AF: 0.00163

GnomAD4 exome AF: 0.000702 AC: 963 AN: 1370856 Hom.: 1 Cov.: 35 AF XY: 0.000747 AC XY: 505 AN XY: 676022

Gnomad4 AFR exome AF: 0.00265

Gnomad4 AMR exome AF: 0.000746

Gnomad4 ASJ exome AF: 0.00735

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000103

Gnomad4 FIN exome AF: 0.0000899

Gnomad4 NFE exome AF: 0.000522

Gnomad4 OTH exome AF: 0.00143

GnomAD4 genome AF: 0.000978 AC: 149 AN: 152274 Hom.: 0 Cov.: 32 AF XY: 0.000981 AC XY: 73 AN XY: 74450

Gnomad4 AFR AF: 0.00154

Gnomad4 AMR AF: 0.00189

Gnomad4 ASJ AF: 0.00749

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000415

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000338

Gnomad4 OTH AF: 0.000473

Alfa AF: 0.00193 Hom.: 0

Bravo AF: 0.00113

ExAC AF: 0.000901 AC: 14

Asia WGS AF: 0.00231 AC: 8 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:4

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Benign:2

-

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

The PALLD p.Leu146Arg variant was not identified in the literature nor was it identified in Cosmic. The variant was identified in dbSNP (ID: rs587780760) and ClinVar (classified as likley benign by Invitae). The variant was identified in control databases in 141 of 150214 chromosomes at a frequency of 0.0009387 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: Ashkenazi Jewish in 64 of 8006 chromosomes (freq: 0.007994), Other in 8 of 4760 chromosomes (freq: 0.001681), African in 19 of 13352 chromosomes (freq: 0.001423), Latino in 19 of 24026 chromosomes (freq: 0.000791), European (non-Finnish) in 30 of 59536 chromosomes (freq: 0.000504) and South Asian in 1 of 20936 chromosomes (freq: 0.000048), but was not observed in the East Asian or European (Finnish) populations. Although the p.Leu146 residue is not conserved in mammals and other organisms, computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) suggest that the variant may impact the protein. The variant occurs outside of the splicing consensus sequence and three of four in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -

Jan 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PALLD: BS1, BS2 -

not specified Uncertain:1

Dec 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.L146R variant (also known as c.437T>G), located in coding exon 1 of the PALLD gene, results from a T to G substitution at nucleotide position 437. The leucine at codon 146 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. The evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -

Pancreatic cancer, susceptibility to, 1 Benign:1

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Pancreatic adenocarcinoma Benign:1

Jan 22, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	20
DANN	Uncertain	1.0
Eigen	Benign	0.048
Eigen_PC	Benign	0.090
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.83	T
MetaRNN	Benign	0.0082	T
MetaSVM	Benign	-0.63	T
PROVEAN	Benign	-2.2	N
REVEL	Benign	0.22
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.034	D
Vest4		0.23
MVP		0.45
ClinPred		0.052	T
GERP RS		4.6

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

LitVar

Other links and lift over

dbSNP: rs587780760; hg19: chr4-169799479;