1-205915144-C-T

Variant names:

• chr1-205915144-C-T
• ENST00000340781.8:c.2412G>A
• SLC26A9 p.Arg804Arg

Variant summary

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

The NM_134325.3(SLC26A9):​c.2412G>A​(p.Arg804Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,224 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: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC26A9 NM_134325.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.229
• Publications: 0 publications found

Genes affected

SLC26A9 (HGNC:14469): (solute carrier family 26 member 9) This gene is one member of a family of sulfate/anion transporter genes. Family members are well conserved in their genomic (number and size of exons) and protein (aa length among species) structures yet have markedly different tissue expression patterns. The product of this gene is a highly selective chloride ion channel regulated by WNK kinases. Alternative splicing results in multiple transcript variants encoding differing isoforms.[provided by RefSeq, Dec 2008]

SLC26A9 Gene-Disease associations (from GenCC):

• cystic fibrosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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=-0.84).
• BP7: Synonymous conserved (PhyloP=0.229 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_134325.3. 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
	SLC26A9	NM_052934.4	MANE Select	c.*213G>A		3_prime_UTR	Exon 21 of 21	NP_443166.1	Q7LBE3-1
	SLC26A9	NM_134325.3		c.2412G>A	p.Arg804Arg	synonymous	Exon 22 of 22	NP_599152.2	Q7LBE3-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC26A9	ENST00000340781.8	TSL:1	c.2412G>A	p.Arg804Arg	synonymous	Exon 21 of 21	ENSP00000341682.4	Q7LBE3-2
	SLC26A9	ENST00000367135.8	TSL:1 MANE Select	c.*213G>A		3_prime_UTR	Exon 21 of 21	ENSP00000356103.3	Q7LBE3-1
	SLC26A9	ENST00000367134.2	TSL:5	c.2412G>A	p.Arg804Arg	synonymous	Exon 22 of 22	ENSP00000356102.2	Q7LBE3-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461224 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726828

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44688

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26084

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86172

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111590

Other (OTH) AF: 0.00 AC: 0 AN: 60374

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	7.1
DANN	Benign	0.35
PhyloP100		0.23
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.11		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr1-205884272;

COSMIC: COSV104651017;