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GeneBe

rs4134932

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_004722.4(AP4M1):c.1305C>T(p.Asn435=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0286 in 1,613,992 control chromosomes in the GnomAD database, including 834 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 44 hom., cov: 32)
Exomes 𝑓: 0.030 ( 790 hom. )

Consequence

AP4M1
NM_004722.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.27
Variant links:
Genes affected
AP4M1 (HGNC:574): (adaptor related protein complex 4 subunit mu 1) This gene encodes a subunit of the heterotetrameric AP-4 complex. The encoded protein belongs to the adaptor complexes medium subunits family. This AP-4 complex is involved in the recognition and sorting of cargo proteins with tyrosine-based motifs from the trans-golgi network to the endosomal-lysosomal system. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.38).
BP6
Variant 7-100106825-C-T is Benign according to our data. Variant chr7-100106825-C-T is described in ClinVar as [Benign]. Clinvar id is 128404.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-100106825-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=1.27 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0184 (2800/152344) while in subpopulation NFE AF= 0.0299 (2031/68030). AF 95% confidence interval is 0.0288. There are 44 homozygotes in gnomad4. There are 1333 alleles in male gnomad4 subpopulation. This position pass quality control queck.
BS2
High Homozygotes in GnomAd at 44 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AP4M1NM_004722.4 linkuse as main transcriptc.1305C>T p.Asn435= synonymous_variant 15/15 ENST00000359593.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AP4M1ENST00000359593.9 linkuse as main transcriptc.1305C>T p.Asn435= synonymous_variant 15/151 NM_004722.4 P3

Frequencies

GnomAD3 genomes
AF:
0.0184
AC:
2802
AN:
152226
Hom.:
44
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00622
Gnomad AMI
AF:
0.0263
Gnomad AMR
AF:
0.00838
Gnomad ASJ
AF:
0.0245
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.0203
Gnomad FIN
AF:
0.0135
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.0299
Gnomad OTH
AF:
0.0139
GnomAD3 exomes
AF:
0.0191
AC:
4794
AN:
251092
Hom.:
77
AF XY:
0.0204
AC XY:
2776
AN XY:
135830
show subpopulations
Gnomad AFR exome
AF:
0.00573
Gnomad AMR exome
AF:
0.00787
Gnomad ASJ exome
AF:
0.0202
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0222
Gnomad FIN exome
AF:
0.0150
Gnomad NFE exome
AF:
0.0272
Gnomad OTH exome
AF:
0.0227
GnomAD4 exome
AF:
0.0296
AC:
43296
AN:
1461648
Hom.:
790
Cov.:
34
AF XY:
0.0296
AC XY:
21519
AN XY:
727142
show subpopulations
Gnomad4 AFR exome
AF:
0.00484
Gnomad4 AMR exome
AF:
0.00823
Gnomad4 ASJ exome
AF:
0.0204
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0246
Gnomad4 FIN exome
AF:
0.0160
Gnomad4 NFE exome
AF:
0.0336
Gnomad4 OTH exome
AF:
0.0292
GnomAD4 genome
AF:
0.0184
AC:
2800
AN:
152344
Hom.:
44
Cov.:
32
AF XY:
0.0179
AC XY:
1333
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00620
Gnomad4 AMR
AF:
0.00837
Gnomad4 ASJ
AF:
0.0245
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.0201
Gnomad4 FIN
AF:
0.0135
Gnomad4 NFE
AF:
0.0299
Gnomad4 OTH
AF:
0.0137
Alfa
AF:
0.0271
Hom.:
71
Bravo
AF:
0.0179
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.0308
EpiControl
AF:
0.0286

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoApr 01, 2013- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 01, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Hereditary spastic paraplegia Benign:1
Benign, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, The Hospital for Sick ChildrenNov 27, 2021- -
Hereditary spastic paraplegia 50 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
Cadd
Benign
6.9
Dann
Benign
0.88

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.

Other links and lift over

dbSNP: rs4134932; hg19: chr7-99704448; COSMIC: COSV57994651; COSMIC: COSV57994651; API