NM_017417.2:c.80T>C

Variant names:

• chr12-4720757-T-C
• NM_017417.2:c.80T>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_017417.2(GALNT8):​c.80T>C​(p.Phe27Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: GALNT8 NM_017417.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.94
• Publications: 0 publications found

Genes affected

GALNT8 (HGNC:4130): (polypeptide N-acetylgalactosaminyltransferase 8) This gene encodes a member of the UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase (GalNAc-T) family of enzymes. GalNAc-Ts initiate mucin-type O-linked glycosylation in the Golgi apparatus by catalyzing the transfer of GalNAc to serine and threonine residues on target proteins. They are characterized by an N-terminal transmembrane domain, a stem region, a lumenal catalytic domain containing a GT1 motif and Gal/GalNAc transferase motif, and a C-terminal ricin/lectin-like domain. GalNAc-Ts have different, but overlapping, substrate specificities and patterns of expression. [provided by RefSeq, Jul 2008]

ENSG00000255639 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.28809604).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017417.2. 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
	GALNT8	NM_017417.2	MANE Select	c.80T>C	p.Phe27Ser	missense	Exon 1 of 11	NP_059113.1	Q9NY28

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GALNT8	ENST00000252318.7	TSL:1 MANE Select	c.80T>C	p.Phe27Ser	missense	Exon 1 of 11	ENSP00000252318.2	Q9NY28
	ENSG00000255639	ENST00000648836.1		c.963+35432T>C		intron	N/A	ENSP00000497305.1	A0A3B3ISG8
	GALNT8	ENST00000902363.1		c.80T>C	p.Phe27Ser	missense	Exon 1 of 11	ENSP00000572422.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.058	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Benign	0.015	T
Eigen	Benign	-0.079
Eigen_PC	Benign	-0.18
FATHMM_MKL	Benign	0.49	N
LIST_S2	Benign	0.33	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.29	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.5	L
PhyloP100		2.9
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.18
Sift	Uncertain	0.0010	D
Sift4G	Benign	0.23	T
Polyphen		0.98	D
Vest4		0.41
MutPred		0.42		Gain of disorder (P = 0.0049)
MVP		0.41
MPC		0.33
ClinPred		0.80	D
GERP RS		4.0
PromoterAI		0.0037	Neutral
Varity_R		0.25
gMVP		0.26
Mutation Taster		=92/8	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

hg19: chr12-4829923;