Genetic Variant NM_020726.5:c.368C>T (chr5-65763026-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_020726.5(NLN):c.368C>T(p.Thr123Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. T123R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NLN
NM_020726.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.53

Publications

0 publications found

Variant links:

Genes affected

NLN (HGNC:16058): (neurolysin) This gene encodes a member of the metallopeptidase M3 protein family that cleaves neurotensin at the Pro10-Tyr11 bond, leading to the formation of neurotensin(1-10) and neurotensin(11-13). The encoded protein is likely involved in the termination of the neurotensinergic signal in the central nervous system and in the gastrointestinal tract.[provided by RefSeq, Jun 2010]

NLN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.757

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020726.5. 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
	NLN	NM_020726.5	MANE Select	c.368C>T	p.Thr123Ile	missense	Exon 3 of 13	NP_065777.1	Q9BYT8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NLN	ENST00000380985.10	TSL:1 MANE Select	c.368C>T	p.Thr123Ile	missense	Exon 3 of 13	ENSP00000370372.5	Q9BYT8
NLN	ENST00000506539.5	TSL:1	n.484C>T		non_coding_transcript_exon	Exon 3 of 9
NLN	ENST00000865845.1		c.368C>T	p.Thr123Ile	missense	Exon 3 of 13	ENSP00000535904.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461600

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727112

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39680

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111796

Other (OTH)

AF:

0.00

AC:

AN:

60374

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.350

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.070

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.24

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.88

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.055

MetaRNN

Pathogenic

0.76

MetaSVM

Benign

-0.48

MutationAssessor

Uncertain

2.4

PhyloP100

7.5

PrimateAI

Uncertain

0.74

PROVEAN

Uncertain

-3.5

REVEL

Uncertain

0.35

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.78

MutPred

0.37

Loss of phosphorylation at T123 (P = 0.0253)

MVP

0.73

MPC

0.48

ClinPred

0.97

GERP RS

5.7

Varity_R

0.58

gMVP

0.42

Mutation Taster

=13/87

disease causing

(source)

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over