12-91051467-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The ENST00000266719.4(KERA):​c.938G>A​(p.Arg313Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000585 in 1,610,866 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0030 ( 5 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

KERA
ENST00000266719.4 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.585
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 Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0031802058).
BP6
Variant 12-91051467-C-T is Benign according to our data. Variant chr12-91051467-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 781087.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.003 (455/151730) while in subpopulation AFR AF= 0.0102 (425/41466). AF 95% confidence interval is 0.00944. There are 5 homozygotes in gnomad4. There are 213 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KERANM_007035.4 linkuse as main transcriptc.938G>A p.Arg313Gln missense_variant 3/3 ENST00000266719.4 NP_008966.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KERAENST00000266719.4 linkuse as main transcriptc.938G>A p.Arg313Gln missense_variant 3/31 NM_007035.4 ENSP00000266719 P1

Frequencies

GnomAD3 genomes
AF:
0.00295
AC:
448
AN:
151610
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0101
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00145
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000148
Gnomad OTH
AF:
0.00336
GnomAD3 exomes
AF:
0.000779
AC:
195
AN:
250388
Hom.:
0
AF XY:
0.000488
AC XY:
66
AN XY:
135344
show subpopulations
Gnomad AFR exome
AF:
0.0109
Gnomad AMR exome
AF:
0.000175
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:
0.0000530
Gnomad OTH exome
AF:
0.000822
GnomAD4 exome
AF:
0.000334
AC:
488
AN:
1459136
Hom.:
0
Cov.:
30
AF XY:
0.000277
AC XY:
201
AN XY:
725964
show subpopulations
Gnomad4 AFR exome
AF:
0.0106
Gnomad4 AMR exome
AF:
0.000449
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000550
Gnomad4 OTH exome
AF:
0.000731
GnomAD4 genome
AF:
0.00300
AC:
455
AN:
151730
Hom.:
5
Cov.:
32
AF XY:
0.00287
AC XY:
213
AN XY:
74152
show subpopulations
Gnomad4 AFR
AF:
0.0102
Gnomad4 AMR
AF:
0.00145
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000148
Gnomad4 OTH
AF:
0.00332
Alfa
AF:
0.000447
Hom.:
0
Bravo
AF:
0.00305
ESP6500AA
AF:
0.00817
AC:
36
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000873
AC:
106

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 testingLabcorp Genetics (formerly Invitae), LabcorpJul 18, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
8.0
DANN
Benign
0.79
DEOGEN2
Benign
0.27
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.0015
N
LIST_S2
Benign
0.57
T
MetaRNN
Benign
0.0032
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
-1.9
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
0.16
N
REVEL
Benign
0.029
Sift
Benign
0.29
T
Sift4G
Benign
0.32
T
Polyphen
0.0
B
Vest4
0.037
MVP
0.43
MPC
0.016
ClinPred
0.0046
T
GERP RS
0.43
Varity_R
0.043
gMVP
0.14

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: rs34009810; hg19: chr12-91445244; COSMIC: COSV57131378; API