5-65763026-C-G

Position:

• chr5-65763026-C-G

Variant summary

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

The NM_020726.5(NLN):​c.368C>G​(p.Thr123Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NLN NM_020726.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.53

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]

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	UniProt
NLN	NM_020726.5	c.368C>G	p.Thr123Arg	missense_variant	3/13	ENST00000380985.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NLN	ENST00000380985.10	c.368C>G	p.Thr123Arg	missense_variant	3/13	1	NM_020726.5	P1
NLN	ENST00000506539.5	n.484C>G		non_coding_transcript_exon_variant	3/9	1
NLN	ENST00000502464.5	c.56C>G	p.Thr19Arg	missense_variant	2/12	5
NLN	ENST00000514991.5			downstream_gene_variant		4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 250982 Hom.: 0 AF XY: 0.00000737 AC XY: 1 AN XY: 135610

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

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

Ambry Genetics

Dec 11, 2023

The c.368C>G (p.T123R) alteration is located in exon 3 (coding exon 3) of the NLN gene. This alteration results from a C to G substitution at nucleotide position 368, causing the threonine (T) at amino acid position 123 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.40
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.23	T;T
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.85
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D;D
M_CAP	Benign	0.044	D
MetaRNN	Uncertain	0.70	D;D
MetaSVM	Benign	-0.50	T
MutationAssessor	Uncertain	2.7	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.70	T
PROVEAN	Uncertain	-3.9	D;D
REVEL	Uncertain	0.43
Sift	Benign	0.041	D;D
Sift4G	Uncertain	0.052	T;D
Polyphen		1.0	D;.
Vest4		0.76
MutPred		0.36		Gain of MoRF binding (P = 0.0082);.;
MVP		0.62
MPC		0.37
ClinPred		0.93	D
GERP RS		5.7
Varity_R		0.84
gMVP		0.61

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

LitVar

Other links and lift over

dbSNP: rs755712804; hg19: chr5-65058853;