rs575096086

Variant summary

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

The NM_004722.4(AP4M1):​c.847C>T​(p.Arg283Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000551 in 1,614,012 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R283Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

AP4M1
NM_004722.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.76

Publications

1 publications found
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]
AP4M1 Gene-Disease associations (from GenCC):
  • AP-4 deficiency syndrome
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hereditary spastic paraplegia 50
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • AP4-related intellectual disability and spastic paraplegia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_004722.4, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

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=0.3418246).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004722.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AP4M1
NM_004722.4
MANE Select
c.847C>Tp.Arg283Trp
missense
Exon 11 of 15NP_004713.2
AP4M1
NM_001363671.2
c.868C>Tp.Arg290Trp
missense
Exon 11 of 15NP_001350600.1C9JC87
AP4M1
NM_001438824.1
c.868C>Tp.Arg290Trp
missense
Exon 12 of 16NP_001425753.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AP4M1
ENST00000359593.9
TSL:1 MANE Select
c.847C>Tp.Arg283Trp
missense
Exon 11 of 15ENSP00000352603.4O00189
AP4M1
ENST00000421755.5
TSL:1
c.847C>Tp.Arg283Trp
missense
Exon 11 of 16ENSP00000412185.1O00189
AP4M1
ENST00000429084.5
TSL:5
c.868C>Tp.Arg290Trp
missense
Exon 11 of 15ENSP00000403663.1C9JC87

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152130
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000756
AC:
19
AN:
251432
AF XY:
0.000103
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.000198
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000967
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000534
AC:
78
AN:
1461764
Hom.:
0
Cov.:
33
AF XY:
0.0000509
AC XY:
37
AN XY:
727172
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.0000894
AC:
4
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.000115
AC:
3
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53386
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000504
AC:
56
AN:
1111924
Other (OTH)
AF:
0.000132
AC:
8
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000723
AC:
11
AN:
152248
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74440
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41540
American (AMR)
AF:
0.000196
AC:
3
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000831
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Hereditary spastic paraplegia 50 (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.28
T
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.039
D
MetaRNN
Benign
0.34
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
1.8
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-4.5
D
REVEL
Uncertain
0.31
Sift
Uncertain
0.015
D
Sift4G
Uncertain
0.019
D
PromoterAI
0.029
Neutral
Varity_R
0.63
gMVP
0.49
Mutation Taster
=46/54
disease causing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

Other links and lift over

dbSNP: rs575096086;
hg19: chr7-99703080;
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.