4-168898656-T-C

Variant names:

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

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001166108.2(PALLD):​c.2414T>C​(p.Ile805Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. I805S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PALLD NM_001166108.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• 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: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2363019).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PALLD	NM_001166108.2	c.2414T>C	p.Ile805Thr	missense_variant	Exon 14 of 22	ENST00000505667.6	NP_001159580.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PALLD	ENST00000505667.6	c.2414T>C	p.Ile805Thr	missense_variant	Exon 14 of 22	1	NM_001166108.2	ENSP00000425556.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Pancreatic adenocarcinoma Uncertain:1

Mar 27, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C65"). This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a PALLD-related disease. This sequence change replaces isoleucine with threonine at codon 301 of the PALLD protein (p.Ile301Thr). The isoleucine residue is highly conserved and there is a moderate physicochemical difference between isoleucine and threonine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Benign	0.0042	T
BayesDel_noAF	Benign	-0.23
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	.;.;.;.;T;.
Eigen	Benign	-0.038
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.90	D;D;D;D;D;D
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.24	T;T;T;T;T;T
MetaSVM	Benign	-0.83	T
PhyloP100		5.1
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-2.4	N;N;N;D;D;N
REVEL	Benign	0.23
Sift	Uncertain	0.0060	D;D;D;D;T;T
Sift4G	Uncertain	0.016	D;D;D;D;D;D
Vest4		0.56
MVP		0.52
MPC		0.79
ClinPred		0.78	D
GERP RS		5.5
gMVP		0.70
Mutation Taster		=61/39	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;