rs121917858

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP5BP4

The NM_007035.4(KERA):ā€‹c.740A>Gā€‹(p.Asn247Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000392 in 1,610,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: š‘“ 0.00040 ( 0 hom., cov: 32)
Exomes š‘“: 0.00039 ( 0 hom. )

Consequence

KERA
NM_007035.4 missense

Scores

9
4
6

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.67
Variant links:
Genes affected
KERA (HGNC:6309): (keratocan) The protein encoded by this gene is a keratan sulfate proteoglycan that is involved in corneal transparency. Defects in this gene are a cause of autosomal recessive cornea plana 2 (CNA2).[provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 12-91055542-T-C is Pathogenic according to our data. Variant chr12-91055542-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 6519.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-91055542-T-C is described in Lovd as [Likely_pathogenic]. Variant chr12-91055542-T-C is described in Lovd as [Pathogenic].
BP4
Computational evidence support a benign effect (MetaRNN=0.10530627). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KERANM_007035.4 linkuse as main transcriptc.740A>G p.Asn247Ser missense_variant 2/3 ENST00000266719.4 NP_008966.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KERAENST00000266719.4 linkuse as main transcriptc.740A>G p.Asn247Ser missense_variant 2/31 NM_007035.4 ENSP00000266719 P1

Frequencies

GnomAD3 genomes
AF:
0.000404
AC:
61
AN:
151170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000291
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00386
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000267
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000677
AC:
169
AN:
249524
Hom.:
0
AF XY:
0.000675
AC XY:
91
AN XY:
134868
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00502
Gnomad NFE exome
AF:
0.000480
Gnomad OTH exome
AF:
0.00116
GnomAD4 exome
AF:
0.000391
AC:
571
AN:
1459290
Hom.:
0
Cov.:
33
AF XY:
0.000393
AC XY:
285
AN XY:
725952
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00439
Gnomad4 NFE exome
AF:
0.000290
Gnomad4 OTH exome
AF:
0.000232
GnomAD4 genome
AF:
0.000403
AC:
61
AN:
151288
Hom.:
0
Cov.:
32
AF XY:
0.000473
AC XY:
35
AN XY:
73920
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000291
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00386
Gnomad4 NFE
AF:
0.000267
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000284
Hom.:
0
Bravo
AF:
0.000110
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000544
AC:
66
EpiCase
AF:
0.000164
EpiControl
AF:
0.000475

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Cornea plana 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJan 01, 2002- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.88
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.89
D
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.078
D
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-0.40
T
MutationAssessor
Pathogenic
3.2
M
MutationTaster
Benign
1.0
A
PrimateAI
Uncertain
0.61
T
PROVEAN
Pathogenic
-4.9
D
REVEL
Uncertain
0.57
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.97
MVP
0.93
MPC
0.12
ClinPred
0.18
T
GERP RS
5.9
Varity_R
0.78
gMVP
0.75

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: rs121917858; hg19: chr12-91449319; API