11-108158984-C-T

Position:

• chr11-108158984-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002519.3(NPAT):​c.4242G>A​(p.Met1414Ile) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NPAT NM_002519.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.45

Genes affected

NPAT (HGNC:7896): (nuclear protein, coactivator of histone transcription) Enables protein C-terminus binding activity; transcription coactivator activity; and transcription corepressor activity. Involved in positive regulation of transcription by RNA polymerase II and regulation of transcription involved in G1/S transition of mitotic cell cycle. Located in Cajal body; Gemini of coiled bodies; and cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

NPAT (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NPAT	NM_002519.3	c.4242G>A	p.Met1414Ile	missense_variant	18/18	ENST00000278612.9	NP_002510.2
NPAT	NM_001321307.1	c.4263G>A	p.Met1421Ile	missense_variant	18/18		NP_001308236.1
NPAT	XM_011542854.3	c.4269G>A	p.Met1423Ile	missense_variant	18/18		XP_011541156.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NPAT	ENST00000278612.9	c.4242G>A	p.Met1414Ile	missense_variant	18/18	1	NM_002519.3	ENSP00000278612.8
NPAT	ENST00000530859.1	n.1615G>A		non_coding_transcript_exon_variant	5/5	2
NPAT	ENST00000530926.1	n.399G>A		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Nov 24, 2021

This sequence change does not appear to have been previously described in individuals with NPAT-related disorders and has also not been described in the population databases such as ExAC and gnomAD. The p.Met1414Ile change affects a highly conserved amino acid residue located in a domain of the NPAT protein that is not known to be functional. In-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL) provide contradictory results for the p.Met1414Ile substitution. Due to insufficient evidence and the lack of functional studies, the clinical significance of the p.Met1414Ile change remains unknown at this time. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Benign	-0.062	T
BayesDel_noAF	Benign	-0.33
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.20	T
Eigen	Uncertain	0.68
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.39	T
MetaSVM	Benign	-1.2	T
MutationAssessor	Benign	1.0	L
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.17
Sift	Uncertain	0.014	D
Sift4G	Uncertain	0.032	D
Polyphen		0.99	D
Vest4		0.48
MutPred		0.23		Gain of relative solvent accessibility (P = 0.0522);
MVP		0.60
MPC		0.33
ClinPred		0.85	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.41
gMVP		0.098

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.25		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.25		Position offset: 35

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-108029711;