chr4-44683207-T-TA

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBA1

The NM_021927.3(GUF1):​c.586-28_586-27insA variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.996 in 1,361,514 control chromosomes in the GnomAD database, including 675,786 homozygotes. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.98 ( 73210 hom., cov: 31)
Exomes 𝑓: 1.0 ( 602576 hom. )

Consequence

GUF1
NM_021927.3 intron

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.251
Variant links:
Genes affected
GUF1 (HGNC:25799): (GTP binding elongation factor GUF1) This gene encodes a GTPase that triggers back-translocation of the elongating ribosome during mitochondrial protein synthesis. The protein contains a highly conserved C-terminal domain not found in other GTPases that facilitates tRNA binding. The encoded protein is thought to prevent misincorporation of amino acids in stressful, suboptimal conditions. An allelic variant in this gene has been associated with early infantile epileptic encephalopathy-40. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]
GNPDA2 (HGNC:21526): (glucosamine-6-phosphate deaminase 2) The protein encoded by this gene is an allosteric enzyme that catalyzes the reversible reaction converting D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium. Variations of this gene have been reported to be associated with influencing body mass index and susceptibility to obesity. A pseudogene of this gene is located on chromosome 9. Alternative splicing results in multiple transcript variants that encode different protein isoforms. [provided by RefSeq, Aug 2012]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant 4-44683207-T-TA is Benign according to our data. Variant chr4-44683207-T-TA is described in ClinVar as [Benign]. Clinvar id is 1285315.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.994 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GUF1NM_021927.3 linkuse as main transcriptc.586-28_586-27insA intron_variant ENST00000281543.6 NP_068746.2 Q8N442

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GUF1ENST00000281543.6 linkuse as main transcriptc.586-28_586-27insA intron_variant 1 NM_021927.3 ENSP00000281543.5 Q8N442

Frequencies

GnomAD3 genomes
AF:
0.981
AC:
148966
AN:
151812
Hom.:
73153
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.935
Gnomad AMI
AF:
1.00
Gnomad AMR
AF:
0.992
Gnomad ASJ
AF:
1.00
Gnomad EAS
AF:
1.00
Gnomad SAS
AF:
1.00
Gnomad FIN
AF:
1.00
Gnomad MID
AF:
0.997
Gnomad NFE
AF:
1.00
Gnomad OTH
AF:
0.985
GnomAD3 exomes
AF:
0.995
AC:
195730
AN:
196700
Hom.:
97421
AF XY:
0.996
AC XY:
107944
AN XY:
108328
show subpopulations
Gnomad AFR exome
AF:
0.931
Gnomad AMR exome
AF:
0.997
Gnomad ASJ exome
AF:
1.00
Gnomad EAS exome
AF:
1.00
Gnomad SAS exome
AF:
1.00
Gnomad FIN exome
AF:
1.00
Gnomad NFE exome
AF:
1.00
Gnomad OTH exome
AF:
0.999
GnomAD4 exome
AF:
0.998
AC:
1207282
AN:
1209586
Hom.:
602576
Cov.:
16
AF XY:
0.998
AC XY:
612309
AN XY:
613300
show subpopulations
Gnomad4 AFR exome
AF:
0.931
Gnomad4 AMR exome
AF:
0.996
Gnomad4 ASJ exome
AF:
1.00
Gnomad4 EAS exome
AF:
1.00
Gnomad4 SAS exome
AF:
1.00
Gnomad4 FIN exome
AF:
1.00
Gnomad4 NFE exome
AF:
1.00
Gnomad4 OTH exome
AF:
0.996
GnomAD4 genome
AF:
0.981
AC:
149082
AN:
151928
Hom.:
73210
Cov.:
31
AF XY:
0.982
AC XY:
72939
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.935
Gnomad4 AMR
AF:
0.992
Gnomad4 ASJ
AF:
1.00
Gnomad4 EAS
AF:
1.00
Gnomad4 SAS
AF:
1.00
Gnomad4 FIN
AF:
1.00
Gnomad4 NFE
AF:
1.00
Gnomad4 OTH
AF:
0.985
Alfa
AF:
0.274
Hom.:
2235
Asia WGS
AF:
0.998
AC:
3442
AN:
3450

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 40 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabAug 10, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs112232487; hg19: chr4-44685224; API