rs138789360

Variant names:

• chr12-132626194-C-A
• rs138789360
• NM_006231.4:c.6454G>T

Your query was ambiguous. Multiple possible variants found:

• chr12-132626194-C-A
• chr12-132626194-C-G
• chr12-132626194-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4 BP6

The NM_006231.4(POLE):​c.6454G>T​(p.Val2152Leu) 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 1,461,316 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V2152M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: POLE NM_006231.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:1
• Conservation: PhyloP100: 1.87
• Publications: 2 publications found

Genes affected

POLE (HGNC:9177): (DNA polymerase epsilon, catalytic subunit) This gene encodes the catalytic subunit of DNA polymerase epsilon. The enzyme is involved in DNA repair and chromosomal DNA replication. Mutations in this gene have been associated with colorectal cancer 12 and facial dysmorphism, immunodeficiency, livedo, and short stature. [provided by RefSeq, Sep 2013]

POLE Gene-Disease associations (from GenCC):

• POLE-related polyposis and colorectal cancer syndrome

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• colorectal cancer, susceptibility to, 12

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
• facial dysmorphism-immunodeficiency-livedo-short stature syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency

  Inheritance: AR Classification: STRONG Submitted by: G2P
• IMAGe syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Polymerase proofreading-related adenomatous polyposis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

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=0.31436586).
• BP6: Variant 12-132626194-C-A is Benign according to our data. Variant chr12-132626194-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 540753.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006231.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	POLE	NM_006231.4	MANE Select	c.6454G>T	p.Val2152Leu	missense	Exon 46 of 49	NP_006222.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	POLE	ENST00000320574.10	TSL:1 MANE Select	c.6454G>T	p.Val2152Leu	missense	Exon 46 of 49	ENSP00000322570.5
	POLE	ENST00000535270.5	TSL:1	c.6373G>T	p.Val2125Leu	missense	Exon 45 of 48	ENSP00000445753.1
	POLE	ENST00000537064.5	TSL:1	n.*6205G>T		non_coding_transcript_exon	Exon 46 of 49	ENSP00000442578.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461316 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726938

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.00 AC: 0 AN: 44670

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86202

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53190

Middle Eastern (MID) AF: 0.000174 AC: 1 AN: 5742

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111860

Other (OTH) AF: 0.00 AC: 0 AN: 60370

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	2	-	not provided (2)
-	-	1	Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.25	T
Eigen	Uncertain	0.31
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.0090	T
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Pathogenic	2.9	M
PhyloP100		1.9
PrimateAI	Benign	0.45	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.11
Sift	Benign	0.14	T
Sift4G	Benign	0.20	T
Polyphen		0.60	P
Vest4		0.33
MutPred		0.28		Gain of catalytic residue at P2147 (P = 5e-04)
MVP		0.23
MPC		0.22
ClinPred		0.62	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.2
Varity_R		0.28
gMVP		0.28
Mutation Taster		=72/28	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: rs138789360; hg19: chr12-133202780;