2-171809638-G-A

Variant names:

• chr2-171809638-G-A
• rs775253855
• NM_003705.5:c.1273C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_003705.5(SLC25A12):​c.1273C>T​(p.Pro425Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P425A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC25A12 NM_003705.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.67
• Publications: 0 publications found

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]

SLC25A12 Gene-Disease associations (from GenCC):

• developmental and epileptic encephalopathy, 39

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
• mitochondrial disease

  Inheritance: AR Classification: MODERATE Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.26742256).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003705.5. 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
	SLC25A12	NM_003705.5	MANE Select	c.1273C>T	p.Pro425Ser	missense	Exon 13 of 18	NP_003696.2
	SLC25A12	NR_047549.2		n.1187C>T		non_coding_transcript_exon	Exon 12 of 17

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC25A12	ENST00000422440.7	TSL:1 MANE Select	c.1273C>T	p.Pro425Ser	missense	Exon 13 of 18	ENSP00000388658.2	O75746-1
	SLC25A12	ENST00000958780.1		c.1450C>T	p.Pro484Ser	missense	Exon 15 of 20	ENSP00000628839.1
	SLC25A12	ENST00000958781.1		c.1273C>T	p.Pro425Ser	missense	Exon 13 of 19	ENSP00000628840.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.084
BayesDel_addAF	Benign	-0.071	T
BayesDel_noAF	Benign	-0.34
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.61	D
Eigen	Benign	-0.10
Eigen_PC	Benign	0.12
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.27	T
MetaSVM	Benign	-0.75	T
MutationAssessor	Benign	-0.075	N
PhyloP100		4.7
PrimateAI	Uncertain	0.50	T
PROVEAN	Pathogenic	-5.3	D
REVEL	Benign	0.27
Sift	Benign	0.27	T
Sift4G	Benign	0.42	T
Polyphen		0.013	B
Vest4		0.22
MutPred		0.46		Gain of disorder (P = 0.0962)
MVP		0.55
MPC		0.73
ClinPred		0.93	D
GERP RS		5.5
Varity_R		0.25
gMVP		0.76
Mutation Taster		=55/45	polymorphism

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: rs775253855; hg19: chr2-172666148;