chr21-46145457-G-T

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_206965.2(FTCD):​c.1220C>A​(p.Thr407Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00133 in 1,560,728 control chromosomes in the GnomAD database, including 17 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0011 ( 1 hom., cov: 31)
Exomes 𝑓: 0.0014 ( 16 hom. )

Consequence

FTCD
NM_206965.2 missense

Scores

19

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0310
Variant links:
Genes affected
FTCD (HGNC:3974): (formimidoyltransferase cyclodeaminase) The protein encoded by this gene is a bifunctional enzyme that channels 1-carbon units from formiminoglutamate, a metabolite of the histidine degradation pathway, to the folate pool. Mutations in this gene are associated with glutamate formiminotransferase deficiency. Alternatively spliced transcript variants have been found for this gene.[provided by RefSeq, Dec 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.012105256).
BP6
Variant 21-46145457-G-T is Benign according to our data. Variant chr21-46145457-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 340422.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr21-46145457-G-T is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAdExome4 at 16 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FTCDNM_206965.2 linkuse as main transcriptc.1220C>A p.Thr407Lys missense_variant 10/14 ENST00000397746.8
FTCDNM_001320412.2 linkuse as main transcriptc.1220C>A p.Thr407Lys missense_variant 10/15
FTCDNM_006657.3 linkuse as main transcriptc.1220C>A p.Thr407Lys missense_variant 10/15

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FTCDENST00000397746.8 linkuse as main transcriptc.1220C>A p.Thr407Lys missense_variant 10/141 NM_206965.2 P1O95954-1

Frequencies

GnomAD3 genomes
AF:
0.00110
AC:
167
AN:
152160
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000916
Gnomad ASJ
AF:
0.0225
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000985
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.00200
AC:
337
AN:
168516
Hom.:
8
AF XY:
0.00190
AC XY:
172
AN XY:
90582
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000704
Gnomad ASJ exome
AF:
0.0235
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000212
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00141
Gnomad OTH exome
AF:
0.00351
GnomAD4 exome
AF:
0.00136
AC:
1910
AN:
1408450
Hom.:
16
Cov.:
32
AF XY:
0.00135
AC XY:
943
AN XY:
696084
show subpopulations
Gnomad4 AFR exome
AF:
0.000187
Gnomad4 AMR exome
AF:
0.000814
Gnomad4 ASJ exome
AF:
0.0226
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000175
Gnomad4 FIN exome
AF:
0.0000631
Gnomad4 NFE exome
AF:
0.00102
Gnomad4 OTH exome
AF:
0.00264
GnomAD4 genome
AF:
0.00110
AC:
167
AN:
152278
Hom.:
1
Cov.:
31
AF XY:
0.00112
AC XY:
83
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.000915
Gnomad4 ASJ
AF:
0.0225
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000985
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.00225
Hom.:
5
Bravo
AF:
0.00120
ESP6500AA
AF:
0.000235
AC:
1
ESP6500EA
AF:
0.00201
AC:
17
ExAC
AF:
0.000924
AC:
106
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Glutamate formiminotransferase deficiency Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 06, 2023- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJan 01, 2024FTCD: BP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
5.1
DANN
Benign
0.41
DEOGEN2
Benign
0.044
T;.;T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.085
N
LIST_S2
Benign
0.099
.;T;T;T
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.012
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.56
N;N;N;.
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.13
N;N;N;N
REVEL
Benign
0.041
Sift
Benign
0.93
T;T;T;T
Sift4G
Benign
0.88
T;T;T;T
Polyphen
0.050
B;B;B;B
Vest4
0.18
MVP
0.28
MPC
0.067
ClinPred
0.014
T
GERP RS
0.91
Varity_R
0.031
gMVP
0.15

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: rs148920158; hg19: chr21-47565371; API