Table 1. Summary of all ion channel models and densities implemented in the mouse mature GC model.
Categorial values of the ion channel expression profiles: 0 = not existent or very weak, 1 = weak, 2 = moderate, 3 = strong. Conductances [mS/cm²] for each ion channel used in the model are given in the gray fields.
Name | Soma | Axon | AIS | GCL | IML | MML | OML | Reference | Ion channel model |
---|---|---|---|---|---|---|---|---|---|
Nav 1.1 Nav 1.2 Nav 1.6 |
3 0 |
0 3 |
0 3 |
0 0 |
0 0 |
0 0 |
0 0 |
(Westenbroek et al., 1989; Schmidt-Hieber and Bischofberger, 2010) | 8-state model from (Schmidt-Hieber and Bischofberger, 2010). Inact. modified according to (Rush et al., 2005; Schmidt-Hieber and Bischofberger, 2010) (see text) |
0 | 1 | 3 | 0 | 0 | 0 | 0 | (Kress et al., 2010; Schmidt-Hieber and Bischofberger, 2010) | ||
88.128 | 88.1280 | 518.400 | - | - | - | - | |||
K2Ps (passive) | 3 | 1 | 1 | 2 | 2 | 2 | 2 | (Lesage et al., 1997; Hervieu et al., 2001; Talley et al., 2001; Gabriel et al., 2002; Aller and Wisden, 2008; Yarishkin et al., 2014) | |
0.014 | 0.007 | 0.007 | 0.014 | 0.014 | 0.014 | 0.014 | |||
Kir 2.x | 3 | 1 | 1 | 2 | 2 | 2 | 2 | (Karschin et al., 1996; Miyashita and Kubo, 1997; Stonehouse et al., 1999; Prüss et al., 2003) | 6-state model, modification see Appendix 2. |
0.1416 | 0.0674 | 0.0674 | 0.1416 | 0.1416 | 0.1416 | 0.1416 | |||
HCN1-3 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | (Notomi and Shigemoto, 2004) | 2-state model, from (Stegen et al., 2012); activation −10 mV, added cAMP-sens. and slow comp. of act. |
- | - | - | - | 0.004 | 0.004 | 0.004 | |||
Kv 1.1 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | (Rhodes et al., 1997; Grosse et al., 2000; Monaghan et al., 2001) | nh model from (Christie et al., 1989) |
- | 0.25 | 0.25 | - | - | - | - | |||
Kv 1.4 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | (Rhodes et al., 1997; Cooper et al., 1998; Grosse et al., 2000; Monaghan et al., 2001) | n4h model from (Wissmann et al., 2003) |
- | 1 | 1 | - | - | - | - | |||
Kv 2.1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | (Rhodes et al., 1997; Murakoshi and Trimmer, 1999) | mh model, fitted using (VanDongen et al., 1990; Kramer et al., 1998; Kerschensteiner and Stocker, 1999; McCrossan et al., 2003; Gordon et al., 2006) |
7.09 | - | - | - | - | - | - | |||
Kv 3.3/3.4 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | (Weiser et al., 1994; Chang et al., 2007) | mh model, fitted using (Rudy et al., 1991; Schröter et al., 1991; Rettig et al., 1992; Miera et al., 1992; Riazanski et al., 2001; Desai et al., 2008) |
- | 7.6562 | 30.7813 | - | - | - | - | |||
Kv 4.2/3 +KChIP/DPP6 |
0 | 0 | 0 | 1 | 2 | 3 | 3 | (Rhodes et al., 2004; Zagha et al., 2005; Menegola and Trimmer, 2006) | 13-state model from (Barghaan et al., 2008); activation −20 mV according to (Barghaan et al., 2008; Figure S1A) and (Jerng et al., 1999; An et al., 2000; Bähring et al., 2001; Patel et al., 2004; Jerng et al., 2005; Rüschenschmidt et al., 2006; Kaulin et al., 2008; Kim et al., 2008) |
- | - | - | 2.1750 | 4.35 | 4.35 | 4.35 | |||
Kv 7.2/3 (KCNQ2 and 3) | 0 | 2 | 3 | 0 | 0 | 0 | 0 | (Cooper et al., 2001; Klinger et al., 2011; Martinello et al., 2015) | mh model from (Mateos-Aparicio et al., 2014) (η = 0.5, see Tab. S1 in that publication) |
- | 1.3400 | 6.7000 | - | - | - | - | |||
Cav 1.2 (L-type) | 3 | 0 | 1 | 1 | 2 | 2 | 2 | (Tippens et al., 2008; Leitch et al., 2009) | mh1h2 model from GENESIS (Evans et al., 2013), added Ca2+-dep. inactivation (h2) |
0.0200 | - | 0.0100 | 0.0100 | 0.0400 | 0.0400 | 0.0400 | |||
Cav 1.3 | 3 | 1 | 2 | 1 | 2 | 2 | 2 | (Tippens et al., 2008; Leitch et al., 2009) | mh1h2 model from GENESIS (Evans et al., 2013), added Ca2+-dep. inactivation, modified after (Bell et al., 2001; Koschak et al., 2001) |
0.0160 | 0.0040 | 0.0080 | 0.0040 | 0.0080 | 0.0080 | 0.0080 | |||
Cav 2.1/2 (N-/P/Q-type) | 3 | 2 | 2 | 1 | 1 | 1 | 1 | (Day et al., 1996; Chung et al., 2001; Li et al., 2007; Xu et al., 2007; 2010) | m²h model from (Fox et al., 1987); set inact. time constant to 100 ms according to (Fox et al., 1987; Huang et al., 2010) |
0.3000 | 0.0500 | 0.0500 | 0.0500 | 0.0500 | 0.0500 | 0.0500 | |||
Cav 3.2 (T-type) | 3 | 1 | 1 | 2 | 2 | 2 | 2 | (Craig et al., 1999; McKay et al., 2006; Martinello et al., 2015) | 8-state model from (Burgess et al., 2002) |
0.0220 | 0.0080 | 0.0080 | 0.0220 | 0.0220 | 0.0220 | 0.0220 | |||
BK (slo1) α αβ |
2 | 3 | 3 | 0 | 0 | 0 | 0 | (Knaus et al., 1996; Misonou et al., 2006; Sailer et al., 2006; Kaufmann et al., 2010) | Model from (Jaffe et al., 2011); modification see Appendix 2 |
15.6 3.9 |
62.4 15.6 |
62.4 15.6 |
- | - | - | - | |||
SK2 | 0 | 2 | 3 | 0 | 1 | 1 | 1 | (Obermair et al., 2003; Sailer et al., 2004; Maciaszek et al., 2012; Ballesteros-Merino et al., 2014) | Model from (Solinas et al., 2007) based on (Hirschberg et al., 1998; 1999) |
0.001 | 0.013 | 0.083 | 0.002 | 0.004 | 0.004 | 0.004 |