rs139861201

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_004722.4(AP4M1):​c.1100G>A​(p.Arg367Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000351 in 1,613,738 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. R367W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00037 ( 0 hom. )

Consequence

AP4M1
NM_004722.4 missense

Scores

2
4
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:5

Conservation

PhyloP100: 6.67

Publications

9 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

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.19935545).

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.1100G>Ap.Arg367Gln
missense
Exon 14 of 15NP_004713.2
AP4M1
NM_001363671.2
c.1121G>Ap.Arg374Gln
missense
Exon 14 of 15NP_001350600.1C9JC87
AP4M1
NM_001438824.1
c.1121G>Ap.Arg374Gln
missense
Exon 15 of 16NP_001425753.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AP4M1
ENST00000359593.9
TSL:1 MANE Select
c.1100G>Ap.Arg367Gln
missense
Exon 14 of 15ENSP00000352603.4O00189
AP4M1
ENST00000421755.5
TSL:1
c.1100G>Ap.Arg367Gln
missense
Exon 14 of 16ENSP00000412185.1O00189
AP4M1
ENST00000429084.5
TSL:5
c.1121G>Ap.Arg374Gln
missense
Exon 14 of 15ENSP00000403663.1C9JC87

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000397
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000327
AC:
82
AN:
250448
AF XY:
0.000361
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000140
Gnomad NFE exome
AF:
0.000548
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000367
AC:
537
AN:
1461492
Hom.:
0
Cov.:
35
AF XY:
0.000373
AC XY:
271
AN XY:
727036
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33480
American (AMR)
AF:
0.000112
AC:
5
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000394
AC:
34
AN:
86248
European-Finnish (FIN)
AF:
0.000113
AC:
6
AN:
53046
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000433
AC:
481
AN:
1112002
Other (OTH)
AF:
0.0000994
AC:
6
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
32
63
95
126
158
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000197
AC:
30
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74422
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41540
American (AMR)
AF:
0.0000654
AC:
1
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000397
AC:
27
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.000414
Hom.:
0
Bravo
AF:
0.000196
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000582
AC:
5
ExAC
AF:
0.000313
AC:
38
EpiCase
AF:
0.000545
EpiControl
AF:
0.000356

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.36
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.094
T
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.20
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L
PhyloP100
6.7
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-2.2
N
REVEL
Benign
0.18
Sift
Uncertain
0.013
D
Sift4G
Benign
0.22
T
Polyphen
1.0
D
Vest4
0.63
MVP
0.65
MPC
0.55
ClinPred
0.45
T
GERP RS
4.8
Varity_R
0.63
gMVP
0.51
Mutation Taster
=49/51
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs139861201; hg19: chr7-99704100; COSMIC: COSV100385037; COSMIC: COSV100385037; API