Isoform Positions

Isoform Protein Position Transcript Position Chromosomal Position (HG38) Chromosomal Position (HG19)
IC35859107800;107801;107802 chr2:178527551;178527550;178527549chr2:179392278;179392277;179392276
N2AB34218102877;102878;102879 chr2:178527551;178527550;178527549chr2:179392278;179392277;179392276
N2A33291100096;100097;100098 chr2:178527551;178527550;178527549chr2:179392278;179392277;179392276
N2B2679480605;80606;80607 chr2:178527551;178527550;178527549chr2:179392278;179392277;179392276
Novex-12691980980;80981;80982 chr2:178527551;178527550;178527549chr2:179392278;179392277;179392276
Novex-22698681181;81182;81183 chr2:178527551;178527550;178527549chr2:179392278;179392277;179392276
Novex-3NoneNone chr2:Nonechr2:None

Information

  • RefSeq wild type amino acid: M
  • RefSeq wild type transcript codon: ATG
  • RefSeq wild type template codon: TAC

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
M/I rs772602914 None None N None 0.133 None gnomAD-2.1.1 4.01E-06 None None None None None 0 0 None 0 0 None 3.27E-05 None 0 0 0
M/I rs772602914 None None N None 0.133 None gnomAD-4.0.0 1.59092E-06 None None None None None 0 0 None 0 0 None 0 0 0 1.43279E-05 0
M/T rs72629793 None None N None 0.398 None gnomAD-2.1.1 1.76825E-03 None None None None None 8.26E-05 2.54453E-04 None 8.01777E-03 5.12E-05 None 8.82295E-03 None 0 8.80762E-04 2.52242E-03
M/T rs72629793 None None N None 0.398 None gnomAD-3.1.2 9.85286E-04 None None None None None 7.23E-05 0 0 8.93372E-03 3.8432E-04 None 0 0 8.37693E-04 1.11801E-02 1.43678E-03
M/T rs72629793 None None N None 0.398 None 1000 genomes 2.19649E-03 None None None None None 0 0 None None 0 1E-03 None None None 1.02E-02 None
M/T rs72629793 None None N None 0.398 None Taylor (2011) None ARVC comp het None None Genetic analysis of TTN in 38 ARVC families, incomplete penetrance None None None None None None None None None None None
M/T rs72629793 None None N None 0.398 None gnomAD-4.0.0 1.27692E-03 None None None None None 1.19888E-04 1.83236E-04 None 9.01844E-03 2.00481E-04 None 4.68647E-05 6.1036E-03 5.76327E-04 1.00132E-02 2.12861E-03

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
M/A 0.7152 likely_pathogenic 0.6249 pathogenic None None None None None None None None None None
M/C 0.9341 likely_pathogenic 0.9105 pathogenic None None None None None None None None None None
M/D 0.9511 likely_pathogenic 0.9444 pathogenic None None None None None None None None None None
M/E 0.7988 likely_pathogenic 0.7746 pathogenic None None None None None None None None None None
M/F 0.5751 likely_pathogenic 0.4525 ambiguous None None None None None None None None None None
M/G 0.8704 likely_pathogenic 0.8251 pathogenic None None None None None None None None None None
M/H 0.8239 likely_pathogenic 0.7689 pathogenic None None None None None None None None None None
M/I 0.6244 likely_pathogenic 0.4904 ambiguous None None None None None None N 0.455785265 None None
M/K 0.4553 ambiguous 0.3717 ambiguous None None None None None None N 0.45838564 None None
M/L 0.2611 likely_benign 0.2123 benign None None None None None None N 0.456478699 None None
M/N 0.8562 likely_pathogenic 0.8109 pathogenic None None None None None None None None None None
M/P 0.8869 likely_pathogenic 0.8681 pathogenic None None None None None None None None None None
M/Q 0.4716 ambiguous 0.4172 ambiguous None None None None None None None None None None
M/R 0.4809 ambiguous 0.3743 ambiguous None None None None None None N 0.458558999 None None
M/S 0.713 likely_pathogenic 0.6362 pathogenic None None None None None None None None None None
M/T 0.5175 ambiguous 0.4358 ambiguous None None None None None None N 0.457865565 None None
M/V 0.119 likely_benign 0.0909 benign None None None None None None N 0.436852788 None None
M/W 0.8754 likely_pathogenic 0.8354 pathogenic None None None None None None None None None None
M/Y 0.8501 likely_pathogenic 0.8022 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.