Isoform Positions

Isoform Protein Position Transcript Position Chromosomal Position (HG38) Chromosomal Position (HG19)
IC984829767;29768;29769 chr2:178705236;178705235;178705234chr2:179569963;179569962;179569961
N2AB953128816;28817;28818 chr2:178705236;178705235;178705234chr2:179569963;179569962;179569961
N2A860426035;26036;26037 chr2:178705236;178705235;178705234chr2:179569963;179569962;179569961
N2BNoneNone chr2:Nonechr2:None
Novex-1NoneNone chr2:Nonechr2:None
Novex-2NoneNone chr2:Nonechr2:None
Novex-3NoneNone chr2:Nonechr2:None

Information

  • RefSeq wild type amino acid: R
  • RefSeq wild type transcript codon: CGA
  • RefSeq wild type template codon: GCT

Reported SAVs

SNV RS
DUET
PolyPhen-2
Condel
Rhapsody
REVEL
MVP
Source
MAF
Disease
Zygosity
Site annotation
mCSM PPI
Predicted PPI site
Comments
AFR
AMR
AMS
ASJ
EAS
EUR
FIN
MDE
NFE
SAS
OTH
R/Q rs773444238 None None None None 0.85 None gnomAD-2.1.1 1.21E-05 None None None None None 0 0 None 0 1.11284E-04 None 3.27E-05 None 0 0 0
R/Q rs773444238 None None None None 0.85 None gnomAD-3.1.2 6.57E-06 None None None None None 0 0 0 0 1.92308E-04 None 0 0 0 0 0
R/Q rs773444238 None None None None 0.85 None Arimura (2009) None HCM het None None Increases binding of TTN to CARP (Co-IP assay); alters subcellular localisation of CARP (Myc-tag); co-segregation within family (n = 2, 2 affected (total 3)) None None None None None None None None None None None
R/Q rs773444238 None None None None 0.85 None gnomAD-4.0.0 1.79725E-05 None None None None None 0 0 None 0 2.00597E-04 None 0 1.6442E-04 1.27147E-05 3.29533E-05 1.60123E-05

Saturation Mutagenesis

SAV
AlphaMissense (IC)
AlphaMissense Class (IC)
AlphaMissense (N2AB)
AlphaMissense Class (N2AB)
mCSM
mCSM class
PolyPhen-2
PolyPhen-2 Class
Rhapsody
Rhapsody Class
Condel
Condel Score
Site annotation
mCSM PPI
Predicted PPI site
R/A 0.9962 likely_pathogenic 0.9863 pathogenic None None None None None None None None None None
R/C 0.9867 likely_pathogenic 0.968 pathogenic None None None None None None None None None None
R/D 0.9982 likely_pathogenic 0.9955 pathogenic None None None None None None None None None None
R/E 0.9868 likely_pathogenic 0.958 pathogenic None None None None None None None None None None
R/F 0.9984 likely_pathogenic 0.996 pathogenic None None None None None None None None None None
R/G 0.9886 likely_pathogenic 0.9691 pathogenic None None None None None None None None None None
R/H 0.9075 likely_pathogenic 0.7314 pathogenic None None None None None None None None None None
R/I 0.9964 likely_pathogenic 0.9867 pathogenic None None None None None None None None None None
R/K 0.8408 likely_pathogenic 0.6416 pathogenic None None None None None None None None None None
R/L 0.9853 likely_pathogenic 0.9632 pathogenic None None None None None None None None None None
R/M 0.9972 likely_pathogenic 0.9881 pathogenic None None None None None None None None None None
R/N 0.9981 likely_pathogenic 0.9943 pathogenic None None None None None None None None None None
R/P 0.9959 likely_pathogenic 0.9898 pathogenic None None None None None None None None None None
R/Q 0.9093 likely_pathogenic 0.6884 pathogenic None None None None None None None None None None
R/S 0.9967 likely_pathogenic 0.9893 pathogenic None None None None None None None None None None
R/T 0.9961 likely_pathogenic 0.9812 pathogenic None None None None None None None None None None
R/V 0.9967 likely_pathogenic 0.9884 pathogenic None None None None None None None None None None
R/W 0.955 likely_pathogenic 0.9099 pathogenic None None None None None None None None None None
R/Y 0.9941 likely_pathogenic 0.9861 pathogenic None None None None None None None None None None

Titin has multiple isoforms, the longest being the theoretical IC (inferred complete) isoform which contains all 363 in-frame titin exons. Here all isoform positions have been mapped onto the IC sequence, with an exception being the C-terminal of the much shorter novex-3 isoform. This contains the out of frame exon 48 which cannot be mapped to the other isoforms.