Genetic Variant AP5M1:p.His269Gln (chr14-57280281-C-G) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_018229.4(AP5M1):c.807C>G(p.His269Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

AP5M1
NM_018229.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.06

Variant links:

Genes affected

AP5M1 (HGNC:20192): (adaptor related protein complex 5 subunit mu 1) Involved in endosomal transport. Located in several cellular components, including cytosol; late endosome; and lysosome. Part of AP-type membrane coat adaptor complex. [provided by Alliance of Genome Resources, Apr 2022]

AP5M1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.957

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AP5M1	NM_018229.4 link	c.807C>G	p.His269Gln	missense_variant	Exon 3 of 8	ENST00000261558.8	NP_060699.3	Q9H0R1-1A0A024R654
AP5M1	XM_011536940.4 link	c.849C>G	p.His283Gln	missense_variant	Exon 4 of 9		XP_011535242.1	E7EQ45
AP5M1	NR_026895.2 link	n.505C>G		non_coding_transcript_exon_variant	Exon 2 of 7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AP5M1	ENST00000261558.8 link	c.807C>G	p.His269Gln	missense_variant	Exon 3 of 8	1	NM_018229.4	ENSP00000261558.3		Q9H0R1-1
AP5M1	ENST00000431972.6 link	c.849C>G	p.His283Gln	missense_variant	Exon 4 of 9	2		ENSP00000390531.2		E7EQ45

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251442

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135886

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152120

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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

Feb 10, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.807C>G (p.H269Q) alteration is located in exon 3 (coding exon 3) of the AP5M1 gene. This alteration results from a C to G substitution at nucleotide position 807, causing the histidine (H) at amino acid position 269 to be replaced by a glutamine (Q). 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

Pathogenic

0.92

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.12

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.19

T;T

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.90

D;D

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.96

D;D

MetaSVM

Benign

-0.50

MutationAssessor

Uncertain

2.5

M;.

PrimateAI

Uncertain

0.62

PROVEAN

Pathogenic

-6.0

D;D

REVEL

Pathogenic

0.67

Sift

Benign

0.12

T;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.98

MutPred

0.85

Gain of sheet (P = 0.0101);.;

MVP

0.81

MPC

0.55

ClinPred

0.98

GERP RS

3.7

Varity_R

0.54

gMVP

0.80

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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