21-46151970-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_206965.2(FTCD):​c.378C>T​(p.Tyr126=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00277 in 1,566,116 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0021 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0029 ( 10 hom. )

Consequence

FTCD
NM_206965.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.517
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]
FTCD-AS1 (HGNC:40243): (FTCD antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant 21-46151970-G-A is Benign according to our data. Variant chr21-46151970-G-A is described in ClinVar as [Benign]. Clinvar id is 340438.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.517 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FTCDNM_206965.2 linkuse as main transcriptc.378C>T p.Tyr126= synonymous_variant 4/14 ENST00000397746.8 NP_996848.1
FTCD-AS1NR_170989.1 linkuse as main transcriptn.146+211G>A intron_variant, non_coding_transcript_variant
FTCDNM_001320412.2 linkuse as main transcriptc.378C>T p.Tyr126= synonymous_variant 4/15 NP_001307341.1
FTCDNM_006657.3 linkuse as main transcriptc.378C>T p.Tyr126= synonymous_variant 4/15 NP_006648.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FTCDENST00000397746.8 linkuse as main transcriptc.378C>T p.Tyr126= synonymous_variant 4/141 NM_206965.2 ENSP00000380854 P1O95954-1
FTCD-AS1ENST00000446649.1 linkuse as main transcriptn.146+211G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00206
AC:
313
AN:
152200
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00242
Gnomad ASJ
AF:
0.00259
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000376
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00309
Gnomad OTH
AF:
0.00335
GnomAD3 exomes
AF:
0.00219
AC:
371
AN:
169640
Hom.:
0
AF XY:
0.00225
AC XY:
207
AN XY:
91904
show subpopulations
Gnomad AFR exome
AF:
0.00158
Gnomad AMR exome
AF:
0.00272
Gnomad ASJ exome
AF:
0.00209
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000418
Gnomad FIN exome
AF:
0.00107
Gnomad NFE exome
AF:
0.00343
Gnomad OTH exome
AF:
0.00304
GnomAD4 exome
AF:
0.00285
AC:
4032
AN:
1413798
Hom.:
10
Cov.:
31
AF XY:
0.00281
AC XY:
1967
AN XY:
699156
show subpopulations
Gnomad4 AFR exome
AF:
0.000928
Gnomad4 AMR exome
AF:
0.00262
Gnomad4 ASJ exome
AF:
0.00265
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000372
Gnomad4 FIN exome
AF:
0.000844
Gnomad4 NFE exome
AF:
0.00333
Gnomad4 OTH exome
AF:
0.00265
GnomAD4 genome
AF:
0.00205
AC:
313
AN:
152318
Hom.:
0
Cov.:
34
AF XY:
0.00175
AC XY:
130
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.00111
Gnomad4 AMR
AF:
0.00242
Gnomad4 ASJ
AF:
0.00259
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000376
Gnomad4 NFE
AF:
0.00309
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00179
Hom.:
0
Bravo
AF:
0.00262
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

Significance: 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 testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
0.060
DANN
Benign
0.68
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs374724805; hg19: chr21-47571884; COSMIC: COSV52426951; API