chr17-6686213-C-G

Position:

• chr17-6686213-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_177550.5(SLC13A5):​c.1701G>C​(p.Glu567Asp) variant causes a missense 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC13A5 NM_177550.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0800

Genes affected

SLC13A5 (HGNC:23089): (solute carrier family 13 member 5) This gene encodes a protein belonging to the solute carrier family 13 group of proteins. This family member is a sodium-dependent citrate cotransporter that may regulate metabolic processes. Mutations in this gene cause early infantile epileptic encephalopathy 25. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014]

(HGNC:):

C17orf100 (HGNC:34494): (chromosome 17 open reading frame 100)

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06717983).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC13A5	NM_177550.5	c.1701G>C	p.Glu567Asp	missense_variant	12/12	ENST00000433363.7	NP_808218.1
SLC13A5	NM_001284509.2	c.1650G>C	p.Glu550Asp	missense_variant	12/12		NP_001271438.1
SLC13A5	NM_001284510.2	c.1572G>C	p.Glu524Asp	missense_variant	11/11		NP_001271439.1
SLC13A5	NM_001143838.3	c.1563G>C	p.Glu521Asp	missense_variant	11/11		NP_001137310.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC13A5	ENST00000433363.7	c.1701G>C	p.Glu567Asp	missense_variant	12/12	1	NM_177550.5	ENSP00000406220	P1
	ENST00000634558.1	n.511-3663C>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Mar 06, 2017

A variant of uncertain significance has been identified in the SLC13A5 gene. The E567D variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The E567D variant is not observed in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The E567D variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. This substitution occurs at a position that is not conserved. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. Based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.079
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.71
CADD	Benign	13
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	T;.;.;.
Eigen	Benign	-0.85
Eigen_PC	Benign	-0.86
FATHMM_MKL	Benign	0.064	N
LIST_S2	Benign	0.60	T;T;T;T
M_CAP	Benign	0.0094	T
MetaRNN	Benign	0.067	T;T;T;T
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	1.0	L;.;.;.
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-0.36	.;.;N;.
REVEL	Benign	0.072
Sift	Benign	0.17	.;.;T;.
Sift4G	Benign	0.36	T;T;T;T
Polyphen		0.062	B;.;.;.
Vest4		0.087
MutPred		0.17		Loss of helix (P = 0.1299);.;.;.;
MVP		0.30
MPC		0.25
ClinPred		0.073	T
GERP RS		-2.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.057
gMVP		0.46

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

Publications

LitVar

Other links and lift over

dbSNP: rs1064796705; hg19: chr17-6589532;