Genetic Variant NM_007166.4:c.1770T>A (chr11-85981138-A-T) – ACMG Classification: Benign (-15 pts)

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_007166.4(PICALM):c.1770T>A(p.Ala590Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00053 in 1,546,182 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Synonymous variant affecting the same amino acid position (i.e. A590A) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00054 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00053 ( 14 hom. )

Consequence

PICALM
NM_007166.4 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.37

Variant links:

Genes affected

PICALM (HGNC:15514): (phosphatidylinositol binding clathrin assembly protein) This gene encodes a clathrin assembly protein, which recruits clathrin and adaptor protein complex 2 (AP2) to cell membranes at sites of coated-pit formation and clathrin-vesicle assembly. The protein may be required to determine the amount of membrane to be recycled, possibly by regulating the size of the clathrin cage. The protein is involved in AP2-dependent clathrin-mediated endocytosis at the neuromuscular junction. A chromosomal translocation t(10;11)(p13;q14) leading to the fusion of this gene and the MLLT10 gene is found in acute lymphoblastic leukemia, acute myeloid leukemia and malignant lymphomas. The polymorphisms of this gene are associated with the risk of Alzheimer disease. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2011]

PICALM links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.47).

BP6

Variant 11-85981138-A-T is Benign according to our data. Variant chr11-85981138-A-T is described in ClinVar as [Benign]. Clinvar id is 731410.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=2.37 with no splicing effect.

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.000529 (738/1394008) while in subpopulation EAS AF= 0.0165 (649/39330). AF 95% confidence interval is 0.0154. There are 14 homozygotes in gnomad4_exome. There are 360 alleles in male gnomad4_exome subpopulation. Median coverage is 23. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 14 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PICALM	NM_007166.4 link	c.1770T>A	p.Ala590Ala	synonymous_variant	Exon 17 of 20	ENST00000393346.8	NP_009097.2	Q13492-1A0A024R5P1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PICALM	ENST00000393346.8 link	c.1770T>A	p.Ala590Ala	synonymous_variant	Exon 17 of 20	1	NM_007166.4	ENSP00000377015.3		Q13492-1

Frequencies

GnomAD3 genomes

AF:

0.000539

AC:

AN:

152056

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000218

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0133

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00112

AC:

280

AN:

250604

Hom.:

AF XY:

0.000960

AC XY:

130

AN XY:

135452

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0145

Gnomad SAS exome

AF:

0.000197

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000491

GnomAD4 exome

AF:

0.000529

AC:

738

AN:

1394008

Hom.:

Cov.:

AF XY:

0.000516

AC XY:

360

AN XY:

697752

show subpopulations

Gnomad4 AFR exome

AF:

0.0000627

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0165

Gnomad4 SAS exome

AF:

0.000236

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000105

Gnomad4 OTH exome

AF:

0.000930

GnomAD4 genome

AF:

0.000539

AC:

AN:

152174

Hom.:

Cov.:

AF XY:

0.000659

AC XY:

AN XY:

74394

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0133

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Dec 31, 2019

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_noAF

Benign

-0.47

CADD

Benign

DANN

Benign

0.65

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over