Genetic Variant NM_002579.3:c.55G>T (chr19-726187-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002579.3(PALM):c.55G>T(p.Ala19Ser) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000685 in 1,460,572 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PALM
NM_002579.3 missense, splice_region

Scores

Splicing: ADA: 0.3301

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.14

Publications

0 publications found

Variant links:

Genes affected

PALM (HGNC:8594): (paralemmin) This gene encodes a member of the paralemmin protein family. The product of this gene is a prenylated and palmitoylated phosphoprotein that associates with the cytoplasmic face of plasma membranes and is implicated in plasma membrane dynamics in neurons and other cell types. Several alternatively spliced transcript variants have been identified, but the full-length nature of only two transcript variants has been determined. [provided by RefSeq, Jul 2008]

PALM links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.42103556).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PALM	NM_002579.3 link	c.55G>T	p.Ala19Ser	missense_variant, splice_region_variant	Exon 2 of 9	ENST00000338448.10	NP_002570.2	O75781-1A0A024R1Y6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PALM	ENST00000338448.10 link	c.55G>T	p.Ala19Ser	missense_variant, splice_region_variant	Exon 2 of 9	1	NM_002579.3	ENSP00000341911.4		O75781-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460572

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726640

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5740

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111608

Other (OTH)

AF:

0.00

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 15, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.55G>T (p.A19S) alteration is located in exon 2 (coding exon 2) of the PALM gene. This alteration results from a G to T substitution at nucleotide position 55, causing the alanine (A) at amino acid position 19 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.074

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

.;T

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.83

T;T

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.42

T;T

MetaSVM

Benign

-0.53

MutationAssessor

Uncertain

2.5

M;M

PhyloP100

4.1

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.9

N;N

REVEL

Benign

0.15

Sift

Uncertain

0.0080

D;D

Sift4G

Benign

0.14

T;T

Polyphen

0.99

D;P

Vest4

0.27

MutPred

0.35

Gain of phosphorylation at A19 (P = 0.0104);Gain of phosphorylation at A19 (P = 0.0104);

MVP

0.47

MPC

0.21

ClinPred

0.80

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.13

gMVP

0.38

Mutation Taster

=86/14

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.33

dbscSNV1_RF

Benign

0.46

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over