16-71536831-C-G

Variant names:

• chr16-71536831-C-G
• rs201107063
• NM_001166395.2:c.154C>G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001166395.2(CHST4):​c.154C>G​(p.Arg52Gly) 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 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. R52C) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CHST4 NM_001166395.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.45
• Publications: 3 publications found

Genes affected

CHST4 (HGNC:1972): (carbohydrate sulfotransferase 4) This gene encodes an N-acetylglucosamine 6-O sulfotransferase. The encoded enzyme transfers sulfate from 3'phosphoadenosine 5'phospho-sulfate to the 6-hydroxyl group of N-acetylglucosamine on glycoproteins. This protein is localized to the Golgi and is involved in the modification of glycan structures on ligands of the lymphocyte homing receptor L-selectin. Alternate splicing in the 5' UTR results in multiple transcript variants that encode the same protein. [provided by RefSeq, Oct 2009]

ZNF19 (HGNC:12981): (zinc finger protein 19) The protein encoded by this gene contains a zinc finger, a nucleic acid-binding domain present in many transcription factors. This gene is located in a region next to ZNF23, a gene also encoding a zinc finger protein, on chromosome 16. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.988

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001166395.2. 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
	CHST4	NM_001166395.2	MANE Select	c.154C>G	p.Arg52Gly	missense	Exon 2 of 2	NP_001159867.1	Q8NCG5
	CHST4	NM_005769.2		c.154C>G	p.Arg52Gly	missense	Exon 2 of 2	NP_005760.1	Q8NCG5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHST4	ENST00000539698.4	TSL:1 MANE Select	c.154C>G	p.Arg52Gly	missense	Exon 2 of 2	ENSP00000441204.3	Q8NCG5
	CHST4	ENST00000338482.5	TSL:4	c.154C>G	p.Arg52Gly	missense	Exon 3 of 3	ENSP00000341206.5	Q8NCG5
	CHST4	ENST00000866592.1		c.154C>G	p.Arg52Gly	missense	Exon 2 of 2	ENSP00000536651.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.89	D
Eigen	Pathogenic	0.90
Eigen_PC	Pathogenic	0.84
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.97	D
M_CAP	Uncertain	0.28	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	0.81	D
MutationAssessor	Pathogenic	3.5	H
PhyloP100		2.4
PrimateAI	Uncertain	0.56	T
PROVEAN	Pathogenic	-6.5	D
REVEL	Pathogenic	0.83
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.97
MutPred		0.92		Loss of MoRF binding (P = 0.0222)
MVP		0.96
MPC		0.86
ClinPred		0.99	D
GERP RS		6.0
Varity_R		0.96
gMVP		0.99

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: rs201107063; hg19: chr16-71570734;