TABLE I.
Muscle name | %I fibers | %IIA fibers | %IIB/D fibers | %I MHC | %IIA/D MHC | %IIB MHC | Titin size (kD) major band (mean ± SEM) |
Titin size (kD) minor band (mean ± SEM) | References |
---|---|---|---|---|---|---|---|---|---|
Acromiotrapezius | 6.1 | 93.9 | 0 | 11.3 | 88.7 | 0 | 3,620 ± 12 | – | |
Adductor brevis | 97.5 | 0 | 1.5 | 98.4 | 1 | 0.6 | 3,590 ± 21 | 3,480 ± 17 | Hitomi et al., 2005 |
Adductor longus | 7.7 | 90.3 | 2 | 0 | 38 | 62 | 3,420 ± 6 | 3,328 ± 11 | Joosten et al., 1981 |
Adductor magnus | 0 | 2.4 | 97.6 | 0 | 25.3 | 74.7 | 3,413 ± 9 | 3,307 ± 3 | Joosten et al., 1981; Aigner et al., 1993; Hamalainen and Pette, 1993; Rab et al., 2000 |
Basioclavicularis | 17.5 | 82.5 | 0 | 14.7 | 85.3 | 0 | 3,627 ± 18 | – | |
Biceps brachii | 12.2 | 0 | 87.8 | 6.3 | 84.2 | 9.5 | 3,465 ± 10 | – | Fuentes et al., 1998 |
Biceps femoris | 0 | 87.5 | 12.5 | 0 | 58.5 | 41.5 | 3,405 ± 9 | – | Gondret et al., 1996 |
Cleidocephalicus | 10.5 | 88.5 | 1 | 1 | 99 | 0 | 3,648 ± 19 | – | |
Cleidodeltoideus | 22.5 | 77.5 | 0 | 4.7 | 95.3 | 0 | 3,530 ± 15 | – | |
Diaphragm | 51 | 37 | 12 | 53.4 | 46.6 | 0 | 3,700 ± 9 | – | Aigner et al., 1993; Jimenez-Fuentes et al., 1998; Le Souef et al., 1988; Capdevila et al., 2003 |
EDL | 4.4 | 31.6 | 64 | 3 | 97 | 0 | 3,425 ± 10 | – | Lobley et al., 1977; Aigner et al., 1993; Hamalainen and Pette, 1993; Lexell et al., 1994; Wang and Kernell, 2001 |
Flexor carpi radialis | 22.5 | 70 | 7.5 | 14.7 | 85.3 | 0 | 3,630 ± 15 | – | |
Flexor carpi ulnaris | 15.1 | 84.9 | 0 | 15.5 | 84.5 | 0 | 3,640 ± 6 | – | |
Flexor digitorum profundus | 14.1 | 85.9 | 0 | 12.3 | 87.7 | 0 | 3,660 ± 23 | – | |
Gastrocnemius | 14.8 | 15.2 | 70 | 14.3 | 85.7 | 0 | 3,435 ± 6 | – | Aigner et al., 1993; Hamalainen and Pette, 1993; Wang and Kernell, 2001; Pagliassotti and Donovan, 1990 |
Gluteus maximus | 4.5 | 88.5 | 7 | 0 | 6.7 | 93.3 | 3,405 ± 6 | – | |
Gluteus medius | 3.5 | 92.7 | 3.8 | 0 | 25.3 | 74.7 | 3,405 ± 6 | 3,310 ± 6 | Joosten et al., 1981 |
Gracilis | ND | ND | ND | 0 | 99.5 | 0.5 | 3,403 ± 9 | – | Rouanet and Bacou, 1993; Joosten et al., 1981; Pagliassotti and Donovan, 1990 |
Levator labii superior | 16 | 0 | 84 | 8 | 92 | 0 | 3,667 ± 18 | – | |
Longissimus dorsi | 5.1 | 4.9 | 90 | 5.5 | 94.5 | 0 | 3,570 ± 15 | – | Vigneron et al., 1976; Lobley et al., 1977; Gondret et al., 1996; Lutz et al., 1978 |
Mentalis | 24.5 | 75.5 | 0 | 14.3 | 85.7 | 0 | 3,650 ± 6 | – | |
Mylohyoideus | 31.7 | 34.3 | 34 | 19 | 81 | 0 | 3,583 ± 19 | – | |
Pectineus | 8.9 | 91.1 | 0 | 9.4 | 90.6 | 0 | 3,473 ± 20 | – | |
Pectoralis descendens | 33.6 | 29.1 | 37.3 | 24 | 76 | 0 | 3,655 ± 26 | – | Frey et al., 1998 |
Pectoralis tenuis | 22.1 | 87.9 | 0 | 39.5 | 60.5 | 0 | 3,605 ± 16 | – | |
Pronator teres | 11.5 | 77.5 | 11.5 | 7 | 93 | 0 | 3,540 ± 26 | – | |
Psoas major | 0 | 0 | 100 | 0 | 100 | 0 | 3,295 ± 6 | 3,416 ± 8 | Lobley et al., 1977; Aigner et al., 1993; Hamalainen and Pette, 1993; Gondret et al., 1996; Tikunov et al., 2001 |
Rectus abdominis | 19.5 | 64.5 | 16 | 20 | 80 | 0 | 3,400 ± 12 | – | |
Sartorius | 5 | 90 | 5 | 1.6 | 77.4 | 21 | 3,425 ± 3 | – | Joosten et al., 1981 |
Serratus ventralis | 11.5 | 88.5 | 0 | 25 | 75 | 0 | 3,622 ± 13 | – | |
Soleus | 91.8 | 0 | 8.2 | 94.5 | 5.5 | 0 | 3,596 ± 17 | – | Lobley et al., 1977; Lutz et al., 1978; Pagliassotti and Donovan, 1990; Aigner et al., 1993; Lexell et al., 1994; Wang and Kernell, 2001; Tikunov et al., 2001 |
Sphincter colli profundus | ND | ND | ND | 0 | 100 | 0 | 3,608 ± 19 | – | |
Teres major | 21.9 | 78.1 | 0 | 17.7 | 82.3 | 0 | 3,530 ± 12 | – | |
Tibialis anterior | 4.5 | 92.5 | 3 | 2.3 | 97.7 | 0 | 3,414 ± 12 | 3,308 ± 4 | Lobley et al., 1977; Aigner et al., 1993; Hamalainen and Pette, 1993; Mabuchi et al., 1982; Wang and Kernell, 2001; Yamazaki et al., 2003 |
Transversus abdominis | 24.7 | 70.3 | 5 | 26.5 | 73.5 | 0 | 3,617 ± 9 | – | |
Triceps brachii | 7.7 | 92.3 | 0 | 2 | 88 | 10 | 3,470 ± 12 | – | Fuentes et al., 1998 |
Zygomatico- mandibularis | 26.8 | 73.2 | 0 | 15.7 | 84.3 | 0 | 3,643 ± 15 | – |
Titin size is an average of three to five observations per muscle. A reference list for fiber/MHC composition in rabbit muscles is included (right column).