2-24079505-G-A

Variant names:

• chr2-24079505-G-A
• rs145078765
• NM_004881.5:c.755C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004881.5(TP53I3):​c.755C>T​(p.Ser252Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict 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. S252P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TP53I3 NM_004881.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.22
• Publications: 8 publications found

Genes affected

TP53I3 (HGNC:19373): (tumor protein p53 inducible protein 3) The protein encoded by this gene is similar to oxidoreductases, which are enzymes involved in cellular responses to oxidative stresses and irradiation. This gene is induced by the tumor suppressor p53 and is thought to be involved in p53-mediated cell death. It contains a p53 consensus binding site in its promoter region and a downstream pentanucleotide microsatellite sequence. P53 has been shown to transcriptionally activate this gene by interacting with the downstream pentanucleotide microsatellite sequence. The microsatellite is polymorphic, with a varying number of pentanucleotide repeats directly correlated with the extent of transcriptional activation by p53. It has been suggested that the microsatellite polymorphism may be associated with differential susceptibility to cancer. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2011]

FAM228B (HGNC:24736): (family with sequence similarity 228 member B)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.23063537).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004881.5. 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
	TP53I3	NM_004881.5	MANE Select	c.755C>T	p.Ser252Leu	missense	Exon 4 of 5	NP_004872.2
	TP53I3	NM_147184.4		c.755C>T	p.Ser252Leu	missense	Exon 5 of 6	NP_671713.1	Q53FA7-1
	TP53I3	NM_001206802.2		c.619+1314C>T		intron	N/A	NP_001193731.1	Q53FA7-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53I3	ENST00000238721.9	TSL:1 MANE Select	c.755C>T	p.Ser252Leu	missense	Exon 4 of 5	ENSP00000238721.4	Q53FA7-1
	TP53I3	ENST00000335934.8	TSL:1	c.755C>T	p.Ser252Leu	missense	Exon 5 of 6	ENSP00000337834.4	Q53FA7-1
	TP53I3	ENST00000407482.5	TSL:1	c.619+1314C>T		intron	N/A	ENSP00000384414.1	Q53FA7-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251486 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461890 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.081	T
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.32
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.23	T
MetaSVM	Benign	-0.73	T
MutationAssessor	Benign	0.17	N
PhyloP100		3.2
PrimateAI	Benign	0.36	T
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.12
Sift	Benign	0.16	T
Sift4G	Benign	0.10	T
Polyphen		0.25	B
Vest4		0.41
MutPred		0.59		Gain of helix (P = 0.062)
MVP		0.33
MPC		0.37
ClinPred		0.84	D
GERP RS		3.5
Varity_R		0.38
gMVP		0.74
Mutation Taster		=66/34	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: rs145078765; hg19: chr2-24302375; COSMIC: COSV51980040; COSMIC: COSV51980040;