rs2330183

Variant names:

• chr21-45533378-C-A
• rs2330183
• NM_194255.4:c.190-1230G>T

Your query was ambiguous. Multiple possible variants found:

• chr21-45533378-C-A
• chr21-45533378-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_194255.4(SLC19A1):​c.190-1230G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,992 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 34)
• Consequence: SLC19A1 NM_194255.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.202
• Publications: 15 publications found

Genes affected

SLC19A1 (HGNC:10937): (solute carrier family 19 member 1) The membrane protein encoded by this gene is a transporter of folate and is involved in the regulation of intracellular concentrations of folate. Three transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2011]

SLC19A1 Gene-Disease associations (from GenCC):

• combined immunodeficiency

  Inheritance: AR Classification: MODERATE Submitted by: PanelApp Australia
• immunodeficiency 114, folate-responsive

  Inheritance: AR Classification: LIMITED Submitted by: ClinGen
• megaloblastic anemia, folate-responsive

  Inheritance: AR Classification: LIMITED Submitted by: PanelApp Australia

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_194255.4. 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
	SLC19A1	NM_194255.4	MANE Select	c.190-1230G>T		intron	N/A	NP_919231.1	P41440-1
	SLC19A1	NM_001352512.2		c.190-1230G>T		intron	N/A	NP_001339441.1	P41440-1
	SLC19A1	NM_001205207.3		c.69+1160G>T		intron	N/A	NP_001192136.1	P41440-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC19A1	ENST00000311124.9	TSL:1 MANE Select	c.190-1230G>T		intron	N/A	ENSP00000308895.4	P41440-1
	SLC19A1	ENST00000567670.5	TSL:1	c.190-1230G>T		intron	N/A	ENSP00000457278.1	H3BTQ3
	SLC19A1	ENST00000380010.8	TSL:1	c.190-1230G>T		intron	N/A	ENSP00000369347.4	P41440-3

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151992 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151992 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 74236

African (AFR) AF: 0.0000242 AC: 1 AN: 41396

American (AMR) AF: 0.00 AC: 0 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5158

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10602

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67928

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 30381

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	7.1
DANN	Benign	0.61
PhyloP100		0.20

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: rs2330183; hg19: chr21-46953292;