Variant 1-25753487-T-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_020379.4(MAN1C1):c.838T>C(p.Phe280Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,612,860 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

MAN1C1
NM_020379.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 7.26

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]

MAN1C1 links:

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	UniProt
MAN1C1	NM_020379.4 linkuse as main transcript	c.838T>C	p.Phe280Leu	missense_variant	5/12	ENST00000374332.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
MAN1C1	ENST00000374332.9 linkuse as main transcript	c.838T>C	p.Phe280Leu	missense_variant	5/12	1	NM_020379.4	P1
MAN1C1	ENST00000263979.7 linkuse as main transcript	c.298T>C	p.Phe100Leu	missense_variant	6/13	5
MAN1C1	ENST00000374329.1 linkuse as main transcript	c.151T>C	p.Phe51Leu	missense_variant	4/11	2
MAN1C1	ENST00000473891.1 linkuse as main transcript	n.236T>C		non_coding_transcript_exon_variant	4/5	4

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000678

AC:

AN:

250564

Hom.:

AF XY:

0.0000664

AC XY:

AN XY:

135490

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000175

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:

0.0000794

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.0000267

AC:

AN:

1460670

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

726592

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

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:

0.0000252

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000386

Hom.:

Bravo

AF:

0.0000793

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 17, 2023

The c.838T>C (p.F280L) alteration is located in exon 5 (coding exon 5) of the MAN1C1 gene. This alteration results from a T to C substitution at nucleotide position 838, causing the phenylalanine (F) at amino acid position 280 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

MAN1C1-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 01, 2024

The MAN1C1 c.838T>C variant is predicted to result in the amino acid substitution p.Phe280Leu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.017% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.17

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.50

.;D;T;T

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.92

D;D;D;D

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.61

D;D;D;D

MetaSVM

Benign

-0.91

MutationAssessor

Benign

0.58

.;N;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.77

PROVEAN

Pathogenic

-4.9

.;D;D;D

REVEL

Uncertain

0.37

Sift

Uncertain

0.015

.;D;D;D

Sift4G

Benign

0.20

T;D;D;D

Polyphen

0.97

.;D;.;.

Vest4

0.72

MutPred

0.65

.;Gain of ubiquitination at K283 (P = 0.1008);.;.;

MVP

0.65

MPC

1.0

ClinPred

0.35

GERP RS

5.1

Varity_R

0.63

gMVP

0.63

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over