rs769216699

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001379610.1(SPINK1):​c.111T>G​(p.Asn37Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,012 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. 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. N37H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SPINK1
NM_001379610.1 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.200

Publications

0 publications found
Variant links:
Genes affected
SPINK1 (HGNC:11244): (serine peptidase inhibitor Kazal type 1) The protein encoded by this gene is a trypsin inhibitor, which is secreted from pancreatic acinar cells into pancreatic juice. It is thought to function in the prevention of trypsin-catalyzed premature activation of zymogens within the pancreas and the pancreatic duct. Mutations in this gene are associated with hereditary pancreatitis and tropical calcific pancreatitis. [provided by RefSeq, Oct 2008]
SPINK1 Gene-Disease associations (from GenCC):
  • hereditary chronic pancreatitis
    Inheritance: AD, Unknown Classification: STRONG, SUPPORTIVE, NO_KNOWN Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • tropical pancreatitis
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.056037784).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPINK1NM_001379610.1 linkc.111T>G p.Asn37Lys missense_variant Exon 3 of 4 ENST00000296695.10 NP_001366539.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPINK1ENST00000296695.10 linkc.111T>G p.Asn37Lys missense_variant Exon 3 of 4 1 NM_001379610.1 ENSP00000296695.5
SPINK1ENST00000510027.2 linkc.111T>G p.Asn37Lys missense_variant Exon 3 of 3 3 ENSP00000427376.1
SPINK1ENST00000505722.1 linkn.26T>G non_coding_transcript_exon_variant Exon 1 of 2 2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461012
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726796
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33460
American (AMR)
AF:
0.00
AC:
0
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39574
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86198
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53152
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111686
Other (OTH)
AF:
0.00
AC:
0
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary pancreatitis Uncertain:1
Nov 22, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.N37K variant (also known as c.111T>G), located in coding exon 3 of the SPINK1 gene, results from a T to G substitution at nucleotide position 111. The asparagine at codon 37 is replaced by lysine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
0.44
DANN
Benign
0.10
DEOGEN2
Benign
0.069
T;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.075
N
LIST_S2
Benign
0.29
T;T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.056
T;T
MetaSVM
Benign
-0.87
T
PhyloP100
0.20
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-0.61
N;N
REVEL
Benign
0.15
Sift
Benign
0.93
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0030
B;.
Vest4
0.22
MutPred
0.52
Gain of methylation at N37 (P = 0.0161);Gain of methylation at N37 (P = 0.0161);
MVP
0.20
MPC
0.021
ClinPred
0.27
T
GERP RS
-6.9
Varity_R
0.17
gMVP
0.43
Mutation Taster
=88/12
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

Publications

Other links and lift over

dbSNP: rs769216699; hg19: chr5-147207668; API