rs3746736

Variant summary

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

The NM_138283.1(CSTL1):ā€‹c.262T>Cā€‹(p.Trp88Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.521 in 1,612,164 control chromosomes in the GnomAD database, including 224,187 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: š‘“ 0.59 ( 28176 hom., cov: 33)
Exomes š‘“: 0.51 ( 196011 hom. )

Consequence

CSTL1
NM_138283.1 missense

Scores

17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.270
Variant links:
Genes affected
CSTL1 (HGNC:15958): (cystatin like 1) The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. This gene is located at the telomeric end of the cystatin locus and encodes a type 2 cystatin-like protein. The specific function of this protein has not been determined. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=3.3079068E-6).
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.793 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CSTL1NM_138283.1 linkuse as main transcriptc.262T>C p.Trp88Arg missense_variant 3/4 ENST00000347397.5 NP_612140.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CSTL1ENST00000347397.5 linkuse as main transcriptc.262T>C p.Trp88Arg missense_variant 3/41 NM_138283.1 ENSP00000344907 P1
CSTL1ENST00000246020.3 linkuse as main transcriptc.262T>C p.Trp88Arg missense_variant 3/41 ENSP00000246020 P1

Frequencies

GnomAD3 genomes
AF:
0.592
AC:
89974
AN:
152004
Hom.:
28131
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.800
Gnomad AMI
AF:
0.595
Gnomad AMR
AF:
0.577
Gnomad ASJ
AF:
0.552
Gnomad EAS
AF:
0.723
Gnomad SAS
AF:
0.536
Gnomad FIN
AF:
0.419
Gnomad MID
AF:
0.608
Gnomad NFE
AF:
0.491
Gnomad OTH
AF:
0.600
GnomAD3 exomes
AF:
0.544
AC:
136464
AN:
251004
Hom.:
38485
AF XY:
0.537
AC XY:
72881
AN XY:
135648
show subpopulations
Gnomad AFR exome
AF:
0.804
Gnomad AMR exome
AF:
0.574
Gnomad ASJ exome
AF:
0.558
Gnomad EAS exome
AF:
0.722
Gnomad SAS exome
AF:
0.527
Gnomad FIN exome
AF:
0.414
Gnomad NFE exome
AF:
0.497
Gnomad OTH exome
AF:
0.525
GnomAD4 exome
AF:
0.513
AC:
749646
AN:
1460042
Hom.:
196011
Cov.:
44
AF XY:
0.514
AC XY:
372979
AN XY:
726336
show subpopulations
Gnomad4 AFR exome
AF:
0.809
Gnomad4 AMR exome
AF:
0.576
Gnomad4 ASJ exome
AF:
0.555
Gnomad4 EAS exome
AF:
0.723
Gnomad4 SAS exome
AF:
0.526
Gnomad4 FIN exome
AF:
0.417
Gnomad4 NFE exome
AF:
0.495
Gnomad4 OTH exome
AF:
0.543
GnomAD4 genome
AF:
0.592
AC:
90075
AN:
152122
Hom.:
28176
Cov.:
33
AF XY:
0.591
AC XY:
43939
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.800
Gnomad4 AMR
AF:
0.577
Gnomad4 ASJ
AF:
0.552
Gnomad4 EAS
AF:
0.723
Gnomad4 SAS
AF:
0.537
Gnomad4 FIN
AF:
0.419
Gnomad4 NFE
AF:
0.491
Gnomad4 OTH
AF:
0.598
Alfa
AF:
0.524
Hom.:
42258
Bravo
AF:
0.616
TwinsUK
AF:
0.494
AC:
1831
ALSPAC
AF:
0.483
AC:
1863
ESP6500AA
AF:
0.786
AC:
3464
ESP6500EA
AF:
0.504
AC:
4335
ExAC
AF:
0.546
AC:
66309
Asia WGS
AF:
0.607
AC:
2108
AN:
3478
EpiCase
AF:
0.504
EpiControl
AF:
0.505

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.049
BayesDel_addAF
Benign
-0.76
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.40
DANN
Benign
0.25
DEOGEN2
Benign
0.014
T;T
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.0054
N
LIST_S2
Benign
0.089
T;.
MetaRNN
Benign
0.0000033
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
P;P
PrimateAI
Benign
0.38
T
PROVEAN
Benign
7.9
N;N
REVEL
Benign
0.086
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0
B;B
Vest4
0.17
MutPred
0.26
Gain of disorder (P = 0.0033);Gain of disorder (P = 0.0033);
MPC
0.093
ClinPred
0.0041
T
GERP RS
-0.60
Varity_R
0.068
gMVP
0.28

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: rs3746736; hg19: chr20-23424613; COSMIC: COSV55678066; COSMIC: COSV55678066; API