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12-91055446-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_007035.4(KERA):c.836G>A(p.Arg279Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000257 in 1,610,098 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 1 hom. )

Consequence

KERA
NM_007035.4 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.879
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.00931254).
BP6
Variant 12-91055446-C-T is Benign according to our data. Variant chr12-91055446-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2912464.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KERANM_007035.4 linkuse as main transcriptc.836G>A p.Arg279Gln missense_variant 2/3 ENST00000266719.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KERAENST00000266719.4 linkuse as main transcriptc.836G>A p.Arg279Gln missense_variant 2/31 NM_007035.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000146
AC:
22
AN:
151066
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000662
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00249
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000133
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000445
AC:
111
AN:
249404
Hom.:
0
AF XY:
0.000668
AC XY:
90
AN XY:
134794
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:
0.00311
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000124
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.000269
AC:
392
AN:
1459032
Hom.:
1
Cov.:
33
AF XY:
0.000358
AC XY:
260
AN XY:
725822
show subpopulations
Gnomad4 AFR exome
AF:
0.0000601
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00327
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000811
Gnomad4 OTH exome
AF:
0.000183
GnomAD4 genome
AF:
0.000146
AC:
22
AN:
151066
Hom.:
0
Cov.:
32
AF XY:
0.000231
AC XY:
17
AN XY:
73742
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000662
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00249
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000133
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000178
Hom.:
0
Bravo
AF:
0.0000680
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000486
AC:
59
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeMay 17, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.61
T
BayesDel_noAF
Benign
-0.66
Cadd
Benign
20
Dann
Uncertain
0.98
DEOGEN2
Benign
0.26
T
Eigen
Benign
-0.53
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.19
N
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.0066
T
MetaRNN
Benign
0.0093
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.54
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.12
N
REVEL
Benign
0.084
Sift
Benign
0.29
T
Sift4G
Benign
0.30
T
Polyphen
0.0010
B
Vest4
0.12
MVP
0.53
MPC
0.016
ClinPred
0.020
T
GERP RS
5.0
Varity_R
0.067
gMVP
0.21

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs371954775; hg19: chr12-91449223; COSMIC: COSV57131268; API