chr5-147824701-C-A

Variant names:

• chr5-147824701-C-A
• rs35523678
• NM_001379610.1:c.200G>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_003122.5(SPINK1):​c.200G>T​(p.Arg67Leu) 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 1,461,702 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 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. R67H) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SPINK1 NM_003122.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0970
• Publications: 14 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003122.5. 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
	SPINK1	NM_001379610.1	MANE Select	c.200G>T	p.Arg67Leu	missense	Exon 4 of 4	NP_001366539.1
	SPINK1	NM_001354966.2		c.200G>T	p.Arg67Leu	missense	Exon 5 of 5	NP_001341895.1
	SPINK1	NM_003122.5		c.200G>T	p.Arg67Leu	missense	Exon 5 of 5	NP_003113.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPINK1	ENST00000296695.10	TSL:1 MANE Select	c.200G>T	p.Arg67Leu	missense	Exon 4 of 4	ENSP00000296695.5
	SPINK1	ENST00000505722.1	TSL:2	n.115G>T		non_coding_transcript_exon	Exon 2 of 2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000399 AC: 1 AN: 250356 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000885

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461702 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727152

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39680

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53370

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111928

Other (OTH) AF: 0.0000166 AC: 1 AN: 60380

GnomAD4 genome Cov.: 32

Alfa AF: 0.00000312 Hom.: 21

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Hereditary pancreatitis (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Benign	-0.018	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	13
DANN	Uncertain	0.99
DEOGEN2	Benign	0.28	T
Eigen	Benign	-0.21
Eigen_PC	Benign	-0.37
FATHMM_MKL	Benign	0.092	N
LIST_S2	Benign	0.46	T
M_CAP	Benign	0.057	D
MetaRNN	Uncertain	0.46	T
MetaSVM	Benign	-0.70	T
PhyloP100		0.097
PrimateAI	Benign	0.35	T
PROVEAN	Uncertain	-3.9	D
REVEL	Benign	0.29
Sift	Benign	0.32	T
Sift4G	Benign	0.29	T
Polyphen		0.96	D
Vest4		0.47
MutPred		0.34		Gain of ubiquitination at K66 (P = 0.0371)
MVP		0.80
MPC		0.079
ClinPred		0.82	D
GERP RS		3.3
Varity_R		0.36
gMVP		0.69
Mutation Taster		=73/27	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

Other links and lift over

dbSNP: rs35523678; hg19: chr5-147204264;