NM_001382323.2:c.376G>C

Variant names:

• chr11-125385699-G-C
• rs373672970
• NM_001382323.2:c.376G>C

Variant summary

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

The NM_001382323.2(PKNOX2):​c.376G>C​(p.Asp126His) variant causes a missense change involving the alteration of a conserved nucleotide. 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. D126N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PKNOX2 NM_001382323.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 10.0
• Publications: 4 publications found

Genes affected

PKNOX2 (HGNC:16714): (PBX/knotted 1 homeobox 2) Homeodomain proteins are sequence-specific transcription factors that share a highly conserved DNA-binding domain and play fundamental roles in cell proliferation, differentiation, and death. PKNOX2 belongs to the TALE (3-amino acid loop extension) class of homeodomain proteins characterized by a 3-amino acid extension between alpha helices 1 and 2 within the homeodomain (Imoto et al., 2001 [PubMed 11549286]).[supplied by OMIM, Oct 2009]

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=0.32950747).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PKNOX2	NM_001382323.2	c.376G>C	p.Asp126His	missense_variant	Exon 6 of 13	ENST00000298282.14	NP_001369252.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PKNOX2	ENST00000298282.14	c.376G>C	p.Asp126His	missense_variant	Exon 6 of 13	1	NM_001382323.2	ENSP00000298282.8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000827 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.62
BayesDel_addAF	Benign	-0.078	T
BayesDel_noAF	Benign	-0.35
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.046	T
Eigen	Uncertain	0.65
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.0031	T
MetaRNN	Benign	0.33	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	1.5	L
PhyloP100		10
PrimateAI	Pathogenic	0.86	D
PROVEAN	Benign	-2.3	N
REVEL	Benign	0.29
Sift	Benign	0.030	D
Sift4G	Uncertain	0.028	D
Polyphen		0.80	P
Vest4		0.50
MutPred		0.28		Gain of loop (P = 0.0079);
MVP		0.22
MPC		0.86
ClinPred		0.95	D
GERP RS		5.5
Varity_R		0.39
gMVP		0.57
Mutation Taster		=68/32	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: rs373672970; hg19: chr11-125255595;