chr6-119290706-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005907.4(MAN1A1):​c.874G>A​(p.Ala292Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000158 in 1,610,800 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

MAN1A1
NM_005907.4 missense

Scores

7
8
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.72
Variant links:
Genes affected
MAN1A1 (HGNC:6821): (mannosidase alpha class 1A member 1) This gene encodes a class I mammalian Golgi 1,2-mannosidase which is a type II transmembrane protein. This protein catalyzes the hydrolysis of three terminal mannose residues from peptide-bound Man(9)-GlcNAc(2) oligosaccharides and belongs to family 47 of glycosyl hydrolases. [provided by RefSeq, Jul 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MAN1A1NM_005907.4 linkuse as main transcriptc.874G>A p.Ala292Thr missense_variant 5/13 ENST00000368468.4 NP_005898.2 P33908-1
MAN1A1XM_005266986.5 linkuse as main transcriptc.1123G>A p.Ala375Thr missense_variant 5/13 XP_005267043.1
MAN1A1XM_011535833.3 linkuse as main transcriptc.307G>A p.Ala103Thr missense_variant 4/12 XP_011534135.1
MAN1A1XM_047418775.1 linkuse as main transcriptc.1123G>A p.Ala375Thr missense_variant 5/6 XP_047274731.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MAN1A1ENST00000368468.4 linkuse as main transcriptc.874G>A p.Ala292Thr missense_variant 5/132 NM_005907.4 ENSP00000357453.3 P33908-1

Frequencies

GnomAD3 genomes
AF:
0.000171
AC:
26
AN:
151808
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000132
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.000946
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000133
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000265
AC:
66
AN:
249040
Hom.:
0
AF XY:
0.000245
AC XY:
33
AN XY:
134684
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000204
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000132
Gnomad FIN exome
AF:
0.00148
Gnomad NFE exome
AF:
0.000205
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000157
AC:
229
AN:
1458874
Hom.:
0
Cov.:
29
AF XY:
0.000157
AC XY:
114
AN XY:
725758
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000221
Gnomad4 FIN exome
AF:
0.00114
Gnomad4 NFE exome
AF:
0.000121
Gnomad4 OTH exome
AF:
0.0000996
GnomAD4 genome
AF:
0.000171
AC:
26
AN:
151926
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.000946
Gnomad4 NFE
AF:
0.000133
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000266
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000222
AC:
27
EpiCase
AF:
0.000274
EpiControl
AF:
0.000297

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 10, 2022The c.874G>A (p.A292T) alteration is located in exon 5 (coding exon 4) of the MAN1A1 gene. This alteration results from a G to A substitution at nucleotide position 874, causing the alanine (A) at amino acid position 292 to be replaced by a threonine (T). 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
Benign
0.19
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Pathogenic
0.32
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.70
D
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.069
D
MetaRNN
Uncertain
0.70
D
MetaSVM
Uncertain
0.45
D
MutationAssessor
Pathogenic
3.0
M
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-2.3
N
REVEL
Pathogenic
0.72
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.043
D
Polyphen
1.0
D
Vest4
0.95
MVP
0.85
MPC
1.3
ClinPred
0.37
T
GERP RS
5.9
Varity_R
0.36
gMVP
0.91

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: rs375353033; hg19: chr6-119611871; API