2-171785332-A-T

Position:

• chr2-171785332-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003705.5(SLC25A12):​c.1979T>A​(p.Phe660Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: SLC25A12 NM_003705.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.07

Genes affected

SLC25A12 (HGNC:10982): (solute carrier family 25 member 12) This gene encodes a calcium-binding mitochondrial carrier protein. The encoded protein localizes to the mitochondria and is involved in the exchange of aspartate for glutamate across the inner mitochondrial membrane. Polymorphisms in this gene may be associated with autism, and mutations in this gene may also be a cause of global cerebral hypomyelination. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Apr 2012]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC25A12	NM_003705.5	c.1979T>A	p.Phe660Tyr	missense_variant	18/18	ENST00000422440.7
SLC25A12	XM_047446142.1	c.1706T>A	p.Phe569Tyr	missense_variant	16/16
SLC25A12	NR_047549.2	n.1893T>A		non_coding_transcript_exon_variant	17/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC25A12	ENST00000422440.7	c.1979T>A	p.Phe660Tyr	missense_variant	18/18	1	NM_003705.5	P1
SLC25A12	ENST00000472070.1	n.1389T>A		non_coding_transcript_exon_variant	3/3	2
SLC25A12	ENST00000263812.8	c.*1599T>A		3_prime_UTR_variant, NMD_transcript_variant	17/17	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

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

Invitae

Jun 05, 2021

Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with SLC25A12-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces phenylalanine with tyrosine at codon 660 of the SLC25A12 protein (p.Phe660Tyr). The phenylalanine residue is highly conserved and there is a small physicochemical difference between phenylalanine and tyrosine. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.48	T
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.50
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.049	D
MetaRNN	Uncertain	0.63	D
MetaSVM	Uncertain	-0.23	T
MutationAssessor	Uncertain	2.1	M
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.70	T
PROVEAN	Benign	-2.1	N
REVEL	Uncertain	0.46
Sift	Benign	0.088	T
Sift4G	Uncertain	0.058	T
Polyphen		0.18	B
Vest4		0.59
MutPred		0.70		Loss of helix (P = 0.0167);
MVP		0.76
MPC		0.79
ClinPred		0.72	D
GERP RS		6.2
Varity_R		0.28
gMVP		0.89

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-172641842;