NM_177973.2:c.120C>A

Variant names:

• chr19-48575989-C-A
• rs2544794
• NM_177973.2:c.120C>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_177973.2(SULT2B1):​c.120C>A​(p.Pro40Pro) variant causes a synonymous 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P40P) has been classified as Benign.

• Frequency: Genomes: not found (cov: 30)
• Consequence: SULT2B1 NM_177973.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.55
• Publications: 0 publications found

Genes affected

SULT2B1 (HGNC:11459): (sulfotransferase family 2B member 1) Sulfotransferase enzymes catalyze the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds. These cytosolic enzymes are different in their tissue distributions and substrate specificities. The gene structure (number and length of exons) is similar among family members. This gene sulfates dehydroepiandrosterone but not 4-nitrophenol, a typical substrate for the phenol and estrogen sulfotransferase subfamilies. Two alternatively spliced variants that encode different isoforms have been described. [provided by RefSeq, Jul 2008]

SULT2B1 Gene-Disease associations (from GenCC):

• ichthyosis, congenital, autosomal recessive 14

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• lamellar ichthyosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000287603 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BP7: Synonymous conserved (PhyloP=-2.55 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_177973.2. 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
	SULT2B1	NM_177973.2	MANE Select	c.120C>A	p.Pro40Pro	synonymous	Exon 2 of 7	NP_814444.1	O00204-1
	SULT2B1	NM_004605.2		c.75C>A	p.Pro25Pro	synonymous	Exon 1 of 6	NP_004596.2	O00204-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SULT2B1	ENST00000201586.7	TSL:1 MANE Select	c.120C>A	p.Pro40Pro	synonymous	Exon 2 of 7	ENSP00000201586.2	O00204-1
	SULT2B1	ENST00000323090.4	TSL:1	c.75C>A	p.Pro25Pro	synonymous	Exon 1 of 6	ENSP00000312880.3	O00204-2
	ENSG00000287603	ENST00000666424.1		n.493+20757G>T		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	0.52
DANN	Benign	0.82
PhyloP100		-2.5
PromoterAI		-0.029	Neutral

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: rs2544794; hg19: chr19-49079246;