Isoform Positions

Isoform Protein Position Transcript Position Chromosomal Position (HG38) Chromosomal Position (HG19)
IC34072102439;102440;102441 chr2:178534401;178534400;178534399chr2:179399128;179399127;179399126
N2AB3243197516;97517;97518 chr2:178534401;178534400;178534399chr2:179399128;179399127;179399126
N2A3150494735;94736;94737 chr2:178534401;178534400;178534399chr2:179399128;179399127;179399126
N2B2500775244;75245;75246 chr2:178534401;178534400;178534399chr2:179399128;179399127;179399126
Novex-12513275619;75620;75621 chr2:178534401;178534400;178534399chr2:179399128;179399127;179399126
Novex-22519975820;75821;75822 chr2:178534401;178534400;178534399chr2:179399128;179399127;179399126
Novex-3NoneNone chr2:Nonechr2:None

Information

  • RefSeq wild type amino acid: W
  • RefSeq wild type transcript codon: TGG
  • RefSeq wild type template codon: ACC
  • Domain: Kinase-1
  • Domain position: 260
  • Q(SASA): 0.1071
  • Predicted PPI site: N

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
W/R rs375159973 -2.479 None D None 0.829 0.779170189427 gnomAD-2.1.1 8.11E-06 None None None None N None 0 0 None 0 0 None 0 None 0 1.78E-05 0
W/R rs375159973 -2.479 None D None 0.829 0.779170189427 gnomAD-3.1.2 1.97E-05 None None None None N None 0 0 0 0 0 None 0 0 4.41E-05 0 0
W/R rs375159973 -2.479 None D None 0.829 0.779170189427 Chauveau (2013) Rees (2021) None CM MmD-HD comp het with E2989Efs*4 / comp het with R7796* None None N Genetic analysis of TTN in 30 CM patients; comp het with R7796*; Domain unfolded in vitro (Tm 17 degrees lower than WT); Also found by WES prioritisation in 23 families with congenital CM; comp het with E2989Efs*4; loss of interactions with protein binding partners (Y2H); recessive inheritance None None None None None None None None None None None
W/R rs375159973 -2.479 None D None 0.829 0.779170189427 gnomAD-4.0.0 2.17264E-05 None None None None N None 0 1.66683E-05 None 0 2.22866E-05 None 0 0 2.62758E-05 1.09789E-05 1.60138E-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
W/A 0.9331 likely_pathogenic 0.9018 pathogenic -3.169 Highly Destabilizing None None None None None None None None N
W/C 0.9847 likely_pathogenic 0.9775 pathogenic -1.827 Destabilizing None None None None D 0.554114239 None None N
W/D 0.9874 likely_pathogenic 0.9772 pathogenic -3.705 Highly Destabilizing None None None None None None None None N
W/E 0.9888 likely_pathogenic 0.9799 pathogenic -3.592 Highly Destabilizing None None None None None None None None N
W/F 0.4121 ambiguous 0.3659 ambiguous -2.163 Highly Destabilizing None None None None None None None None N
W/G 0.9243 likely_pathogenic 0.8871 pathogenic -3.394 Highly Destabilizing None None None None D 0.55386075 None None N
W/H 0.9536 likely_pathogenic 0.9313 pathogenic -2.832 Highly Destabilizing None None None None None None None None N
W/I 0.9286 likely_pathogenic 0.9016 pathogenic -2.29 Highly Destabilizing None None None None None None None None N
W/K 0.9953 likely_pathogenic 0.9903 pathogenic -2.784 Highly Destabilizing None None None None None None None None N
W/L 0.7463 likely_pathogenic 0.6953 pathogenic -2.29 Highly Destabilizing None None None None D 0.532207642 None None N
W/M 0.9506 likely_pathogenic 0.9328 pathogenic -1.801 Destabilizing None None None None None None None None N
W/N 0.9873 likely_pathogenic 0.9784 pathogenic -3.483 Highly Destabilizing None None None None None None None None N
W/P 0.9933 likely_pathogenic 0.9916 pathogenic -2.613 Highly Destabilizing None None None None None None None None N
W/Q 0.9938 likely_pathogenic 0.989 pathogenic -3.28 Highly Destabilizing None None None None None None None None N
W/R 0.9898 likely_pathogenic 0.9826 pathogenic -2.649 Highly Destabilizing None None None None D 0.55386075 None None N
W/S 0.9109 likely_pathogenic 0.8631 pathogenic -3.53 Highly Destabilizing None None None None D 0.553353771 None None N
W/T 0.9555 likely_pathogenic 0.9366 pathogenic -3.338 Highly Destabilizing None None None None None None None None N
W/V 0.9068 likely_pathogenic 0.8748 pathogenic -2.613 Highly Destabilizing None None None None None None None None N
W/Y 0.717 likely_pathogenic 0.6503 pathogenic -2.11 Highly Destabilizing None None None None None None None None N

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.