7-142749524-C-T

Variant names:

• chr7-142749524-C-T
• rs747228052
• NM_002769.5:c.40C>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_Moderate BS2_Supporting

The NM_002769.5(PRSS1):​c.40C>T​(p.Leu14Phe) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000465 in 1,418,462 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L14V) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000047 (0 hom.)
• Consequence: PRSS1 NM_002769.5 missense, splice_region
• Scores: Splicing: ADA: 0.0003922
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 2.00
• Publications: 8 publications found

Genes affected

PRSS1 (HGNC:9475): (serine protease 1) This gene encodes a trypsinogen, which is a member of the trypsin family of serine proteases. This enzyme is secreted by the pancreas and cleaved to its active form in the small intestine. It is active on peptide linkages involving the carboxyl group of lysine or arginine. Mutations in this gene are associated with hereditary pancreatitis. This gene and several other trypsinogen genes are localized to the T cell receptor beta locus on chromosome 7. [provided by RefSeq, Jul 2008]

PRSS1 Gene-Disease associations (from GenCC):

• hereditary chronic pancreatitis

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, ClinGen, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
• malignant pancreatic neoplasm

  Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp

TRB (HGNC:12155):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.15009022).
• BS2: High AC in GnomAdExome4 at 66 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002769.5. 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
	PRSS1	NM_002769.5	MANE Select	c.40C>T	p.Leu14Phe	missense splice_region	Exon 1 of 5	NP_002760.1	P07477
	PRSS1	NR_172947.1		n.53C>T		splice_region non_coding_transcript_exon	Exon 1 of 5
	PRSS1	NR_172948.1		n.53C>T		splice_region non_coding_transcript_exon	Exon 1 of 5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRSS1	ENST00000311737.12	TSL:1 MANE Select	c.40C>T	p.Leu14Phe	missense splice_region	Exon 1 of 5	ENSP00000308720.7	P07477
	PRSS1	ENST00000486171.5	TSL:5	c.40C>T	p.Leu14Phe	missense splice_region	Exon 1 of 6	ENSP00000417854.1	E7EQ64
	PRSS1	ENST00000492062.2	TSL:2	c.40C>T	p.Leu14Phe	missense splice_region	Exon 1 of 5	ENSP00000419912.2	H0Y8D1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000398 AC: 10 AN: 251470 AF XY: 0.0000589

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000615

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000465 AC: 66 AN: 1418462 Hom.: 0 Cov.: 48 AF XY: 0.0000552 AC XY: 39 AN XY: 706042

African (AFR) AF: 0.0000310 AC: 1 AN: 32284

American (AMR) AF: 0.00 AC: 0 AN: 43254

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25198

East Asian (EAS) AF: 0.0000516 AC: 2 AN: 38772

South Asian (SAS) AF: 0.00 AC: 0 AN: 84610

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50594

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5590

European-Non Finnish (NFE) AF: 0.0000556 AC: 60 AN: 1079588

Other (OTH) AF: 0.0000512 AC: 3 AN: 58572

GnomAD4 genome Cov.: 32

Alfa AF: 0.000128 Hom.: 0

Bravo AF: 0.0000491

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.00

EpiControl AF: 0.000237

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Hereditary pancreatitis (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.063
BayesDel_addAF	Benign	-0.025	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	17
DANN	Benign	0.59
DEOGEN2	Benign	0.26	T
Eigen	Benign	-0.80
Eigen_PC	Benign	-0.70
FATHMM_MKL	Benign	0.45	N
M_CAP	Uncertain	0.11	D
MetaRNN	Benign	0.15	T
MetaSVM	Uncertain	-0.12	T
MutationAssessor	Benign	1.1	L
PhyloP100		2.0
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-0.77	N
REVEL	Benign	0.21
Sift	Benign	0.32	T
Sift4G	Benign	0.72	T
Polyphen		0.0010	B
Vest4		0.18
MutPred		0.39		Loss of helix (P = 0.1706)
MVP		0.85
MPC		0.18
ClinPred		0.026	T
GERP RS		2.4
Varity_R		0.039
gMVP		0.64
Mutation Taster		=74/26	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00039
dbscSNV1_RF	Benign	0.056
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: rs747228052; hg19: chr7-142457375;