22-37616939-G-T

Variant names:

• chr22-37616939-G-T
• rs1354332547
• NM_013365.5:c.146G>T

Variant summary

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

The NM_001172688.2(GGA1):​c.-74G>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: GGA1 NM_001172688.2 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.75
• Publications: 0 publications found

Genes affected

GGA1 (HGNC:17842): (golgi associated, gamma adaptin ear containing, ARF binding protein 1) This gene encodes a member of the Golgi-localized, gamma adaptin ear-containing, ARF-binding (GGA) protein family. Members of this family are ubiquitous coat proteins that regulate the trafficking of proteins between the trans-Golgi network and the lysosome. These proteins share an amino-terminal VHS domain which mediates sorting of the mannose 6-phosphate receptors at the trans-Golgi network. They also contain a carboxy-terminal region with homology to the ear domain of gamma-adaptins. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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, 0.847

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001172688.2. 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
	GGA1	NM_013365.5	MANE Select	c.146G>T	p.Arg49Leu	missense	Exon 3 of 17	NP_037497.1	Q9UJY5-1
	GGA1	NM_001172688.2		c.-74G>T		5_prime_UTR_premature_start_codon_gain	Exon 4 of 18	NP_001166159.1	Q9UJY5-3
	GGA1	NM_001363771.2		c.146G>T	p.Arg49Leu	missense	Exon 3 of 17	NP_001350700.1	Q9UJY5-6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GGA1	ENST00000343632.9	TSL:1 MANE Select	c.146G>T	p.Arg49Leu	missense	Exon 3 of 17	ENSP00000341344.4	Q9UJY5-1
	GGA1	ENST00000381756.9	TSL:1	c.146G>T	p.Arg49Leu	missense	Exon 3 of 17	ENSP00000371175.5	Q9UJY5-6
	GGA1	ENST00000325180.12	TSL:1	c.146G>T	p.Arg49Leu	missense	Exon 3 of 15	ENSP00000321288.8	Q9UJY5-4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1454928 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 723390

African (AFR) AF: 0.00 AC: 0 AN: 33174

American (AMR) AF: 0.00 AC: 0 AN: 43786

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25906

East Asian (EAS) AF: 0.00 AC: 0 AN: 39178

South Asian (SAS) AF: 0.00 AC: 0 AN: 84984

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53010

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5742

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109022

Other (OTH) AF: 0.00 AC: 0 AN: 60126

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.95
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Pathogenic	0.14
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Benign	0.32	T
Eigen	Pathogenic	0.88
Eigen_PC	Pathogenic	0.84
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Benign	-0.66	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		9.7
PrimateAI	Pathogenic	0.80	T
PROVEAN	Pathogenic	-5.6	D
REVEL	Uncertain	0.64
Sift	Benign	0.031	D
Sift4G	Uncertain	0.030	D
Polyphen		0.96	D
Vest4		0.82
MutPred		0.56		Loss of methylation at R49 (P = 0.0496)
MVP		0.59
MPC		1.0
ClinPred		1.0	D
GERP RS		5.4
RBP_binding_hub_radar		0.92
RBP_regulation_power_radar		2.0
Varity_R		0.79
gMVP		0.71
Mutation Taster		=224/76	polymorphism

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: rs1354332547; hg19: chr22-38012946;