12-51117733-T-C

Variant names:

• chr12-51117733-T-C
• rs1421217968
• NM_005653.5:c.289A>G

Variant summary

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

The NM_005653.5(TFCP2):​c.289A>G​(p.Ile97Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,220 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: TFCP2 NM_005653.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.97
• Publications: 0 publications found

Genes affected

TFCP2 (HGNC:11748): (transcription factor CP2) This gene encodes a transcription factor that binds the alpha-globin promoter and activates transcription of the alpha-globin gene. The encoded protein regulates erythroid gene expression, plays a role in the transcriptional switch of globin gene promoters, and it activates many other cellular and viral gene promoters. The gene product interacts with certain inflammatory response factors, and polymorphisms of this gene may be involved in the pathogenesis of Alzheimer's disease. [provided by RefSeq, Mar 2010]

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=0.30630338).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005653.5. 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
	TFCP2	NM_005653.5	MANE Select	c.289A>G	p.Ile97Val	missense	Exon 3 of 15	NP_005644.2
	TFCP2	NM_001173452.2		c.289A>G	p.Ile97Val	missense	Exon 3 of 15	NP_001166923.1	Q12800-4
	TFCP2	NM_001173453.2		c.289A>G	p.Ile97Val	missense	Exon 3 of 14	NP_001166924.1	Q12800-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TFCP2	ENST00000257915.10	TSL:1 MANE Select	c.289A>G	p.Ile97Val	missense	Exon 3 of 15	ENSP00000257915.5	Q12800-1
	TFCP2	ENST00000548108.1	TSL:1	c.-6A>G		5_prime_UTR	Exon 3 of 14	ENSP00000449280.1	F8VWL0
	TFCP2	ENST00000930488.1		c.436A>G	p.Ile146Val	missense	Exon 4 of 16	ENSP00000600547.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152220 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 29

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152220 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74378

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000241 AC: 1 AN: 41448

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5204

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68044

Other (OTH) AF: 0.00 AC: 0 AN: 2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.0000337 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.071	T
BayesDel_noAF	Benign	-0.34
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.26	T
Eigen	Benign	0.11
Eigen_PC	Uncertain	0.30
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.0079	T
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.0	L
PhyloP100		8.0
PrimateAI	Pathogenic	0.85	D
PROVEAN	Benign	-0.59	N
REVEL	Benign	0.15
Sift	Benign	0.14	T
Sift4G	Benign	0.31	T
Polyphen		0.34	B
Vest4		0.60
MVP		0.55
MPC		0.84
ClinPred		0.82	D
GERP RS		5.3
Varity_R		0.12
gMVP		0.64
Mutation Taster		=63/37	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs1421217968; hg19: chr12-51511516;