9-137078632-G-T

Variant names:

• chr9-137078632-G-T
• rs752876757
• NM_207309.3:c.625G>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_207309.3(UAP1L1):​c.625G>T​(p.Gly209Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,666 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G209S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: UAP1L1 NM_207309.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.13
• Publications: 0 publications found

Genes affected

UAP1L1 (HGNC:28082): (UDP-N-acetylglucosamine pyrophosphorylase 1 like 1) Predicted to enable UDP-N-acetylglucosamine diphosphorylase activity. Predicted to be involved in UDP-N-acetylglucosamine biosynthetic process. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.893

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_207309.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UAP1L1	NM_207309.3	MANE Select	c.625G>T	p.Gly209Cys	missense	Exon 3 of 9	NP_997192.2	Q3KQV9-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UAP1L1	ENST00000409858.8	TSL:1 MANE Select	c.625G>T	p.Gly209Cys	missense	Exon 3 of 9	ENSP00000386935.3	Q3KQV9-1
	UAP1L1	ENST00000907215.1		c.625G>T	p.Gly209Cys	missense	Exon 3 of 9	ENSP00000577274.1
	UAP1L1	ENST00000915583.1		c.625G>T	p.Gly209Cys	missense	Exon 3 of 9	ENSP00000585642.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460666 Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1 AN XY: 726620

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52294

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111948

Other (OTH) AF: 0.00 AC: 0 AN: 60376

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.50
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Benign	0.30	T
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.89	D
M_CAP	Uncertain	0.17	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Uncertain	-0.16	T
MutationAssessor	Pathogenic	4.3	H
PhyloP100		6.1
PrimateAI	Uncertain	0.69	T
PROVEAN	Pathogenic	-8.8	D
REVEL	Uncertain	0.62
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.61
MutPred		0.85		Loss of sheet (P = 0.0817)
MVP		0.40
MPC		0.91
ClinPred		1.0	D
GERP RS		4.7
PromoterAI		-0.035	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.95
gMVP		0.96
Mutation Taster		=5/95	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs752876757; hg19: chr9-139973084; COSMIC: COSV64306918;