NM_021927.3:c.670-575A>C

Variant names:

• chr4-44685384-A-C
• rs12499960
• NM_021927.3:c.670-575A>C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_021927.3(GUF1):​c.670-575A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0 (0 hom., cov: 32)
  • Failed GnomAD Quality Control
• Consequence: GUF1 NM_021927.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.752
• Publications: 18 publications found

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]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021927.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GUF1	NM_021927.3	MANE Select	c.670-575A>C		intron	N/A	NP_068746.2
	GUF1	NM_001345868.2		c.670-575A>C		intron	N/A	NP_001332797.1
	GUF1	NM_001345867.2		c.-303-575A>C		intron	N/A	NP_001332796.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GUF1	ENST00000281543.6	TSL:1 MANE Select	c.670-575A>C		intron	N/A	ENSP00000281543.5
	GUF1	ENST00000513775.1	TSL:1	n.*261-575A>C		intron	N/A	ENSP00000422681.1
	GNPDA2	ENST00000609092.5	TSL:2	c.245-2742T>G		intron	N/A	ENSP00000476853.1

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 151906 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 151906 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74188

African (AFR) AF: 0.00 AC: 0 AN: 41358

American (AMR) AF: 0.00 AC: 0 AN: 15224

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10598

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67930

Other (OTH) AF: 0.00 AC: 0 AN: 2088

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	1.5
DANN	Benign	0.75
PhyloP100		-0.75

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

Other links and lift over

dbSNP: rs12499960; hg19: chr4-44687401;