12-91055638-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_007035.4(KERA):​c.644C>A​(p.Thr215Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,459,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

KERA
NM_007035.4 missense

Scores

4
11
4

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 6.52
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 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.924
PP5
Variant 12-91055638-G-T is Pathogenic according to our data. Variant chr12-91055638-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 6521.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-91055638-G-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KERANM_007035.4 linkuse as main transcriptc.644C>A p.Thr215Lys missense_variant 2/3 ENST00000266719.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KERAENST00000266719.4 linkuse as main transcriptc.644C>A p.Thr215Lys missense_variant 2/31 NM_007035.4 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000800
AC:
2
AN:
250064
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135152
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000887
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1459970
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
726304
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000458
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

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 onlyOMIMDec 01, 2001- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
0.030
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.56
D
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.013
T
MetaRNN
Pathogenic
0.92
D
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
1.0
A
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-2.0
N
REVEL
Uncertain
0.34
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.010
D
Polyphen
0.94
P
Vest4
0.82
MutPred
0.81
Gain of catalytic residue at L220 (P = 0);
MVP
0.90
MPC
0.059
ClinPred
0.69
D
GERP RS
6.1
Varity_R
0.37
gMVP
0.80

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: rs121917862; hg19: chr12-91449415; API