Genetic Variant NM_005561.4:c.506C>T (chr13-113310811-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_005561.4(LAMP1):c.506C>T(p.Thr169Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,716 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

LAMP1
NM_005561.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.375

Publications

1 publications found

Variant links:

Genes affected

LAMP1 (HGNC:6499): (lysosomal associated membrane protein 1) The protein encoded by this gene is a member of a family of membrane glycoproteins. This glycoprotein provides selectins with carbohydrate ligands. It may also play a role in tumor cell metastasis. [provided by RefSeq, Jul 2008]

LAMP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LAMP1	NM_005561.4 link	c.506C>T	p.Thr169Met	missense_variant	Exon 4 of 9	ENST00000332556.5	NP_005552.3	P11279-1A0A024RDY3
LAMP1	XM_011537494.3 link	c.449C>T	p.Thr150Met	missense_variant	Exon 4 of 9		XP_011535796.1
LAMP1	XM_047430302.1 link	c.440C>T	p.Thr147Met	missense_variant	Exon 4 of 9		XP_047286258.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LAMP1	ENST00000332556.5 link	c.506C>T	p.Thr169Met	missense_variant	Exon 4 of 9	1	NM_005561.4	ENSP00000333298.4		P11279-1
LAMP1	ENST00000472564.1 link	n.1998C>T		non_coding_transcript_exon_variant	Exon 3 of 6	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

249582

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461716

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727140

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53354

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1111940

Other (OTH)

AF:

0.0000166

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.446

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 17, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.506C>T (p.T169M) alteration is located in exon 4 (coding exon 4) of the LAMP1 gene. This alteration results from a C to T substitution at nucleotide position 506, causing the threonine (T) at amino acid position 169 to be replaced by a methionine (M). 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

0.083

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.37

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.39

FATHMM_MKL

Benign

0.092

LIST_S2

Benign

0.84

M_CAP

Benign

0.061

MetaRNN

Uncertain

0.63

MetaSVM

Benign

-0.93

MutationAssessor

Pathogenic

2.9

PhyloP100

0.38

PrimateAI

Benign

0.47

PROVEAN

Uncertain

-3.1

REVEL

Benign

0.10

Sift

Uncertain

0.014

Sift4G

Uncertain

0.042

Polyphen

1.0

Vest4

0.51

MVP

0.24

MPC

0.91

ClinPred

0.74

GERP RS

1.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.16

gMVP

0.54

Mutation Taster

=92/8

polymorphism

(source)

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

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NM_005561.4:c.506C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over