rs147428514

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_005908.4(MANBA):​c.2296C>T​(p.Arg766Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000129 in 1,614,196 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R766R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

MANBA
NM_005908.4 missense

Scores

3
12
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 1.93

Publications

3 publications found
Variant links:
Genes affected
MANBA (HGNC:6831): (mannosidase beta) This gene encodes a member of the glycosyl hydrolase 2 family. The encoded protein localizes to the lysosome where it is the final exoglycosidase in the pathway for N-linked glycoprotein oligosaccharide catabolism. Mutations in this gene are associated with beta-mannosidosis, a lysosomal storage disease that has a wide spectrum of neurological involvement. [provided by RefSeq, Jul 2008]
MANBA Gene-Disease associations (from GenCC):
  • beta-mannosidosis
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, G2P, ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000114 (167/1461884) while in subpopulation MID AF = 0.00121 (7/5768). AF 95% confidence interval is 0.000569. There are 0 homozygotes in GnomAdExome4. There are 88 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005908.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MANBA
NM_005908.4
MANE Select
c.2296C>Tp.Arg766Trp
missense
Exon 16 of 17NP_005899.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MANBA
ENST00000647097.2
MANE Select
c.2296C>Tp.Arg766Trp
missense
Exon 16 of 17ENSP00000495247.1O00462
MANBA
ENST00000642252.1
c.2434C>Tp.Arg812Trp
missense
Exon 17 of 18ENSP00000495483.1A0A2R8YEC9
MANBA
ENST00000954426.1
c.2395C>Tp.Arg799Trp
missense
Exon 17 of 18ENSP00000624485.1

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152194
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000458
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000250
Gnomad OTH
AF:
0.000958
GnomAD2 exomes
AF:
0.000211
AC:
53
AN:
251356
AF XY:
0.000258
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000387
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000114
AC:
167
AN:
1461884
Hom.:
0
Cov.:
34
AF XY:
0.000121
AC XY:
88
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.0000894
AC:
4
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00121
AC:
7
AN:
5768
European-Non Finnish (NFE)
AF:
0.000120
AC:
133
AN:
1112006
Other (OTH)
AF:
0.000281
AC:
17
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
11
22
34
45
56
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000269
AC:
41
AN:
152312
Hom.:
0
Cov.:
33
AF XY:
0.000242
AC XY:
18
AN XY:
74472
show subpopulations
African (AFR)
AF:
0.000457
AC:
19
AN:
41576
American (AMR)
AF:
0.000196
AC:
3
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000250
AC:
17
AN:
68038
Other (OTH)
AF:
0.000948
AC:
2
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.531
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.000207
Hom.:
0
Bravo
AF:
0.000276
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000313
AC:
38
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000545
EpiControl
AF:
0.000533

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
4
-
Beta-D-mannosidosis (4)
-
3
-
not provided (3)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Pathogenic
0.23
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D
Eigen
Benign
0.18
Eigen_PC
Benign
-0.034
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.74
D
MetaSVM
Uncertain
0.22
D
MutationAssessor
Pathogenic
3.4
M
PhyloP100
1.9
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-5.1
D
REVEL
Uncertain
0.53
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0060
D
Polyphen
1.0
D
Vest4
0.92
MVP
0.72
MPC
0.44
ClinPred
0.84
D
GERP RS
2.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.36
gMVP
0.66
Mutation Taster
=60/40
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs147428514; hg19: chr4-103556064; COSMIC: COSV56965847; COSMIC: COSV56965847; API