chr7-3301728-C-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_152744.4(SDK1):​c.142C>A​(p.Pro48Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00505 in 977,352 control chromosomes in the GnomAD database, including 195 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.022 ( 130 hom., cov: 29)
Exomes 𝑓: 0.0020 ( 65 hom. )

Consequence

SDK1
NM_152744.4 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.58
Variant links:
Genes affected
SDK1 (HGNC:19307): (sidekick cell adhesion molecule 1) The protein encoded by this gene is a member of the immunoglobulin superfamily. The protein contains six immunoglobulin-like domains and thirteen fibronectin type III domains. Fibronectin type III domains are present in both extracellular and intracellular proteins and tandem repeats are known to contain binding sites for DNA, heparin and the cell surface. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0029640496).
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0735 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDK1NM_152744.4 linkuse as main transcriptc.142C>A p.Pro48Thr missense_variant 1/45 ENST00000404826.7 NP_689957.3 Q7Z5N4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDK1ENST00000404826.7 linkuse as main transcriptc.142C>A p.Pro48Thr missense_variant 1/451 NM_152744.4 ENSP00000385899.2 Q7Z5N4-1
SDK1ENST00000389531.7 linkuse as main transcriptc.142C>A p.Pro48Thr missense_variant 1/445 ENSP00000374182.3 F8W6X9
SDK1-AS1ENST00000437354.1 linkuse as main transcriptn.224+501G>T intron_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0224
AC:
3258
AN:
145166
Hom.:
130
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.0758
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00803
Gnomad ASJ
AF:
0.00148
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000418
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00671
Gnomad NFE
AF:
0.000352
Gnomad OTH
AF:
0.0185
GnomAD4 exome
AF:
0.00201
AC:
1674
AN:
832150
Hom.:
65
Cov.:
28
AF XY:
0.00189
AC XY:
727
AN XY:
384350
show subpopulations
Gnomad4 AFR exome
AF:
0.0886
Gnomad4 AMR exome
AF:
0.00900
Gnomad4 ASJ exome
AF:
0.00136
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000120
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000185
Gnomad4 OTH exome
AF:
0.00407
GnomAD4 genome
AF:
0.0225
AC:
3262
AN:
145202
Hom.:
130
Cov.:
29
AF XY:
0.0216
AC XY:
1523
AN XY:
70590
show subpopulations
Gnomad4 AFR
AF:
0.0757
Gnomad4 AMR
AF:
0.00802
Gnomad4 ASJ
AF:
0.00148
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000421
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000352
Gnomad4 OTH
AF:
0.0183
Alfa
AF:
0.00118
Hom.:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 09, 2021The c.142C>A (p.P48T) alteration is located in exon 1 (coding exon 1) of the SDK1 gene. This alteration results from a C to A substitution at nucleotide position 142, causing the proline (P) at amino acid position 48 to be replaced by a threonine (T). 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
Benign
0.071
BayesDel_addAF
Benign
-0.69
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
2.7
DANN
Benign
0.54
DEOGEN2
Benign
0.025
T;T;.
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.010
N
LIST_S2
Benign
0.37
T;T;T
M_CAP
Uncertain
0.27
D
MetaRNN
Benign
0.0030
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;.;.
PrimateAI
Benign
0.48
T
PROVEAN
Benign
0.0
N;N;.
REVEL
Benign
0.014
Sift
Benign
0.37
T;T;.
Polyphen
0.0010
B;.;.
Vest4
0.11
MutPred
0.27
Gain of phosphorylation at P48 (P = 0.0017);Gain of phosphorylation at P48 (P = 0.0017);Gain of phosphorylation at P48 (P = 0.0017);
MVP
0.27
MPC
0.27
ClinPred
0.031
T
GERP RS
-0.35
Varity_R
0.030
gMVP
0.21

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs868254792; hg19: chr7-3341360; COSMIC: COSV67367033; API