chr2-46905497-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP3_ModeratePP5

The NM_139279.6(MCFD2):ā€‹c.407T>Cā€‹(p.Ile136Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,460,952 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

MCFD2
NM_139279.6 missense

Scores

13
5
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 8.68
Variant links:
Genes affected
MCFD2 (HGNC:18451): (multiple coagulation factor deficiency 2, ER cargo receptor complex subunit) This gene encodes a soluble luminal protein with two calmodulin-like EF-hand motifs at its C-terminus. This protein forms a complex with LMAN1 (lectin mannose binding protein 1; also known as ERGIC-53) that facilitates the transport of coagulation factors V (FV) and VIII (FVIII) from the endoplasmic reticulum to the Golgi apparatus via an endoplasmic reticulum Golgi intermediate compartment (ERGIC). Mutations in this gene cause combined deficiency of FV and FVIII (F5F8D); a rare autosomal recessive bleeding disorder characterized by mild to moderate bleeding and coordinate reduction in plasma FV and FVIII levels. This protein has also been shown to maintain stem cell potential in adult central nervous system and is a marker for testicular germ cell tumors. The 3' UTR of this gene contains a transposon-like human repeat element named 'THE 1'. A processed RNA pseudogene of this gene is on chromosome 6p22.1. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Apr 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a domain EF-hand 2 (size 30) in uniprot entity MCFD2_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_139279.6
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.938
PP5
Variant 2-46905497-A-G is Pathogenic according to our data. Variant chr2-46905497-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 2871.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MCFD2NM_139279.6 linkuse as main transcriptc.407T>C p.Ile136Thr missense_variant 4/4 ENST00000319466.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MCFD2ENST00000319466.9 linkuse as main transcriptc.407T>C p.Ile136Thr missense_variant 4/41 NM_139279.6 P1Q8NI22-1
ENST00000429761.1 linkuse as main transcriptn.41-1387A>G intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251404
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135870
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1460952
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726818
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Factor 5 and Factor VIII, combined deficiency of, 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJun 01, 2003- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.45
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
.;D;.;D;.;D;D;.;D;D
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.89
D;.;.;.;.;.;.;D;.;D
M_CAP
Pathogenic
0.68
D
MetaRNN
Pathogenic
0.94
D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.1
.;H;.;H;.;H;H;.;H;H
MutationTaster
Benign
1.0
A;A;A;A;A;A;A;A;A
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-4.8
D;D;D;D;D;D;D;D;D;D
REVEL
Pathogenic
0.90
Sift
Uncertain
0.0010
D;D;T;D;T;D;D;T;D;D
Sift4G
Uncertain
0.0020
D;D;D;D;D;D;D;D;D;D
Polyphen
1.0
.;D;.;D;.;D;D;.;D;D
Vest4
0.96
MutPred
0.76
.;Gain of disorder (P = 0.0304);.;Gain of disorder (P = 0.0304);.;Gain of disorder (P = 0.0304);Gain of disorder (P = 0.0304);.;Gain of disorder (P = 0.0304);Gain of disorder (P = 0.0304);
MVP
0.99
MPC
0.16
ClinPred
1.0
D
GERP RS
4.4
Varity_R
0.97
gMVP
0.89

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: rs137852914; hg19: chr2-47132636; API