rs17221980

Variant names:

• chr2-218387156-T-G
• rs17221980
• NM_000578.4:c.501-4T>G

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_000578.4(SLC11A1):​c.501-4T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.001 in 1,614,174 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0049 (9 hom., cov: 32)
  • Exomes 𝑓: 0.00060 (6 hom.)
• Consequence: SLC11A1 NM_000578.4 splice_region, intron
• Scores: Splicing: ADA: 0.001272
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 0.805
• Publications: 2 publications found

Genes affected

SLC11A1 (HGNC:10907): (solute carrier family 11 member 1) This gene is a member of the solute carrier family 11 (proton-coupled divalent metal ion transporters) family and encodes a multi-pass membrane protein. The protein functions as a divalent transition metal (iron and manganese) transporter involved in iron metabolism and host resistance to certain pathogens. Mutations in this gene have been associated with susceptibility to infectious diseases such as tuberculosis and leprosy, and inflammatory diseases such as rheumatoid arthritis and Crohn disease. Alternatively spliced variants that encode different protein isoforms have been described but the full-length nature of only one has been determined. [provided by RefSeq, Jul 2008]

SLC11A1 Gene-Disease associations (from GenCC):

• cystic fibrosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Mycobacterium tuberculosis, susceptibility

  Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia

ACMG classification

Our verdict: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BP6: Variant 2-218387156-T-G is Benign according to our data. Variant chr2-218387156-T-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 769587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00492 (749/152362) while in subpopulation AFR AF = 0.0171 (710/41592). AF 95% confidence interval is 0.016. There are 9 homozygotes in GnomAd4. There are 361 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High Homozygotes in GnomAd4 at 9 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000578.4. 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
	SLC11A1	NM_000578.4	MANE Select	c.501-4T>G		splice_region intron	N/A	NP_000569.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC11A1	ENST00000233202.11	TSL:1 MANE Select	c.501-4T>G		splice_region intron	N/A	ENSP00000233202.6	P49279-1
	SLC11A1	ENST00000354352.9	TSL:1	n.*83-4T>G		splice_region intron	N/A	ENSP00000346320.5	Q9HBK0
	SLC11A1	ENST00000468221.5	TSL:1	n.2762-4T>G		splice_region intron	N/A

Frequencies

GnomAD3 genomes AF: 0.00489 AC: 745 AN: 152244 Hom.: 9 Cov.: 32

Gnomad AFR AF: 0.0170

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00170

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: 0.000103

Gnomad OTH AF: 0.00287

GnomAD2 exomes AF: 0.00132 AC: 333 AN: 251360 AF XY: 0.00102

Gnomad AFR exome AF: 0.0172

Gnomad AMR exome AF: 0.00107

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000704

Gnomad OTH exome AF: 0.00147

GnomAD4 exome AF: 0.000597 AC: 873 AN: 1461812 Hom.: 6 Cov.: 31 AF XY: 0.000517 AC XY: 376 AN XY: 727208

African (AFR) AF: 0.0183 AC: 612 AN: 33468

American (AMR) AF: 0.00121 AC: 54 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000580 AC: 5 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00243 AC: 14 AN: 5768

European-Non Finnish (NFE) AF: 0.0000881 AC: 98 AN: 1111960

Other (OTH) AF: 0.00149 AC: 90 AN: 60392

GnomAD4 genome AF: 0.00492 AC: 749 AN: 152362 Hom.: 9 Cov.: 32 AF XY: 0.00485 AC XY: 361 AN XY: 74502

African (AFR) AF: 0.0171 AC: 710 AN: 41592

American (AMR) AF: 0.00170 AC: 26 AN: 15304

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

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

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68036

Other (OTH) AF: 0.00284 AC: 6 AN: 2112

Alfa AF: 0.00235 Hom.: 2

Bravo AF: 0.00562

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000296

ClinVar

ClinVar submissions

Significance: Benign/Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	2	not provided (2)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	12
DANN	Benign	0.68
PhyloP100		0.81
Mutation Taster		=95/5	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0013
dbscSNV1_RF	Benign	0.086
SpliceAI score (max)		0.010		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: rs17221980; hg19: chr2-219251879;