17-28395333-G-C

Variant names:

• chr17-28395333-G-C
• rs561043242
• NM_080669.6:c.*4323C>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_080669.6(SLC46A1):​c.*4323C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000854 in 152,180 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000085 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SLC46A1 NM_080669.6 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.55
• Publications: 0 publications found

Genes affected

SLC46A1 (HGNC:30521): (solute carrier family 46 member 1) This gene encodes a transmembrane proton-coupled folate transporter protein that facilitates the movement of folate and antifolate substrates across cell membranes, optimally in acidic pH environments. This protein is also expressed in the brain and choroid plexus where it transports folates into the central nervous system. This protein further functions as a heme transporter in duodenal enterocytes, and potentially in other tissues like liver and kidney. Its localization to the apical membrane or cytoplasm of intestinal cells is modulated by dietary iron levels. Mutations in this gene are associated with autosomal recessive hereditary folate malabsorption disease. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Aug 2013]

SARM1 (HGNC:17074): (sterile alpha and TIR motif containing 1) Enables NAD+ nucleotidase, cyclic ADP-ribose generating and identical protein binding activity. Involved in NAD catabolic process; positive regulation of neuron death; and response to axon injury. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_080669.6. 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
	SLC46A1	NM_080669.6	MANE Select	c.*4323C>G		3_prime_UTR	Exon 5 of 5	NP_542400.2
	SARM1	NM_015077.4	MANE Select	c.1924-572G>C		intron	N/A	NP_055892.2	Q6SZW1-1
	SLC46A1	NM_001242366.3		c.*4323C>G		3_prime_UTR	Exon 4 of 4	NP_001229295.1	Q96NT5-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC46A1	ENST00000612814.5	TSL:2 MANE Select	c.*4323C>G		3_prime_UTR	Exon 5 of 5	ENSP00000480703.1	Q96NT5-1
	SARM1	ENST00000585482.6	TSL:1 MANE Select	c.1924-572G>C		intron	N/A	ENSP00000468032.2	Q6SZW1-1
	SARM1	ENST00000886313.1		c.1924-572G>C		intron	N/A	ENSP00000556372.1

Frequencies

GnomAD3 genomes AF: 0.0000855 AC: 13 AN: 152064 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000327

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.000188

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1188 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 604

African (AFR) AF: 0.00 AC: 0 AN: 4

American (AMR) AF: 0.00 AC: 0 AN: 174

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 4

East Asian (EAS) AF: 0.00 AC: 0 AN: 12

South Asian (SAS) AF: 0.00 AC: 0 AN: 44

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 8

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 906

Other (OTH) AF: 0.00 AC: 0 AN: 36

GnomAD4 genome AF: 0.0000854 AC: 13 AN: 152180 Hom.: 0 Cov.: 32 AF XY: 0.0000672 AC XY: 5 AN XY: 74398

African (AFR) AF: 0.0000241 AC: 1 AN: 41498

American (AMR) AF: 0.000327 AC: 5 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3462

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4804

European-Finnish (FIN) AF: 0.000188 AC: 2 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.000162 Hom.: 0

Bravo AF: 0.0000869

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Congenital defect of folate absorption (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	1.7
DANN	Benign	0.59
PhyloP100		1.6

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: rs561043242; hg19: chr17-26722352;