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GeneBe

1-25618152-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020379.4(MAN1C1):c.355G>A(p.Glu119Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000026 in 1,539,968 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

MAN1C1
NM_020379.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.27
Variant links:
Genes affected
MAN1C1 (HGNC:19080): (mannosidase alpha class 1C member 1) Predicted to enable mannosyl-oligosaccharide 1,2-alpha-mannosidase activity. Predicted to be involved in N-glycan processing. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10061085).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MAN1C1NM_020379.4 linkuse as main transcriptc.355G>A p.Glu119Lys missense_variant 1/12 ENST00000374332.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAN1C1ENST00000374332.9 linkuse as main transcriptc.355G>A p.Glu119Lys missense_variant 1/121 NM_020379.4 P1
MAN1C1ENST00000263979.7 linkuse as main transcriptc.-311G>A 5_prime_UTR_variant 1/135

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152130
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000716
AC:
1
AN:
139570
Hom.:
0
AF XY:
0.0000129
AC XY:
1
AN XY:
77230
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000171
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000216
AC:
3
AN:
1387838
Hom.:
0
Cov.:
31
AF XY:
0.00000146
AC XY:
1
AN XY:
686048
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000277
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152130
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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 GeneticsJan 10, 2022The c.355G>A (p.E119K) alteration is located in exon 1 (coding exon 1) of the MAN1C1 gene. This alteration results from a G to A substitution at nucleotide position 355, causing the glutamic acid (E) at amino acid position 119 to be replaced by a lysine (K). 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
0.098
BayesDel_addAF
Benign
-0.052
T
BayesDel_noAF
Benign
-0.30
Cadd
Benign
19
Dann
Benign
0.96
DEOGEN2
Benign
0.020
T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.45
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.78
T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
1.6
L
MutationTaster
Benign
0.98
D;N
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.42
N
REVEL
Benign
0.17
Sift
Benign
0.47
T
Sift4G
Benign
0.24
T
Polyphen
0.14
B
Vest4
0.15
MutPred
0.33
Gain of MoRF binding (P = 0.005);
MVP
0.82
MPC
0.57
ClinPred
0.085
T
GERP RS
3.0
Varity_R
0.096
gMVP
0.46

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: rs1359609068; hg19: chr1-25944643; API