Protein: Voltage-dependent L-type calcium channel subunit alpha-1S (Calcium channel, L type, alpha-1 polypeptide, isoform 3, skeletal muscle) (ROB1) (Voltage-gated calcium channel subunit alpha Cav1.1) (Q02485)
Organism: Rattus norvegicus (Rat)
Function: Pore-forming, alpha-1S subunit of the voltage-gated calcium channel that gives rise to L-type calcium currents in skeletal muscle. Calcium channels containing the alpha-1S subunit play an important role in excitation-contraction coupling in skeletal muscle via their interaction with RYR1, which triggers Ca(2+) release from the sarcplasmic reticulum and ultimately results in muscle contraction. Long-lasting (L-type) calcium channels belong to the 'high-voltage activated' (HVA) group.
Subcellular location: Cell membrane, sarcolemma, T-tubule {ECO:0000250|UniProtKB:P07293}; Multi-pass membrane protein {ECO:0000250|UniProtKB:P07293}.
Interaction partners:
- Voltage-dependent L-type calcium channel subunit beta-1
- Voltage-dependent calcium channel subunit alpha-2/delta-1
- Voltage-dependent L-type calcium channel subunit beta-2
- Ryanodine receptor 1
- Voltage-dependent calcium channel gamma-1 subunit
- Voltage-dependent L-type calcium channel subunit alpha-1C
- Voltage-dependent L-type calcium channel subunit beta-3
- Oxytocin receptor
- Voltage-dependent L-type calcium channel subunit alpha
- cGMP-dependent protein kinase 2
Sequence:
MEPSSPQDEGLRKKQPKKPVPEILPRPPRALFCLTLQNPLRKACISVVEWKPFETIILLTIFANCVALAVYLPMPEDDNNTLNLGLEKLEYFFLIVFSIEAAMKIIAYGFLFHQDAYLRSGWNVLDFIIVFLGVFTAILEQVNIIQTNTAPMSSKGAGLDVKALRAFRVLRPLRLVSGVPSLQVVLNSIFKAMLPLFHIALLVLFMVIIYAIIGLELFKGKMHKTCYFIGTDIVATVENEKPSPCARTGSGRPCTINGSECRGGWPGPNHGITHFDNFGFSMLTVYQCISMEGWTDVLYWVNDAIGNEWPWIYFVTLILLGSFFILNLVLGVLSGEFTKEREKAKSRGTFQKLREKQQLEEDLRGYMSWITQGEVMDVDDLREGKLSLDEGGSDTESLYEIEGLNKIIQFIRHWRQWNRVFRWKCHDLVKSKVFYWLVILIVALNTLSIASEHHNQPLWLTHLQDVANRVLLALFTIEMLMKMYGLGLRQYFMSIFNRFDCFVVCSGILEILLVESGAMTPLGISVLRCIRLLRLFKITKYWTSLSNLVASLLNSIRSIASLLLLLFLFMIIFALLGMQLFGGRYDFEDTEVRRSNFDNFPQALISVFQVLTGEDWNSVMYNGIMAYGGPSYPGVLVCIYFIILFVCGNYILLNVFLAIAVDNLAEAESLTSAQKAKAEERKRRKMSRGLPDKSEEERSTMTKKLEQKPKGEGIPTTAKLKIDEFESNVNEVKDPYPSADFPGDDEEDEPEIPASPRPRPLAELQLKEKAVPIPEASSFFIFSPTNKIRVLCHRIVNATWFTNFILLFILLSSAALAAEDPIRADSMRNQILEYFDYVFTAVFTVEIVLKMTTYGAFLHKGSFCRNYFNILDLLVVAVSLISMGLESSAISVVKILRVLRVLRPLRAINRAKGLKHVVQCVFVAIRTIGNIVLVTTLLQFMFACIGVQLFKGKFYSCNDLSKMTEEECRGYYYIYKDGDPTQIELRPRQWIHNDFHFDNVLSAMMSLFTVSTFEGWPQLLYKAIDSNEEDTGPVYNNRVEMAIFFIIYIILIAFFMMNIFVGFVIVTFQEQGETEYKNCELDKNQRQCVQYALKARPLRCYIPKNPYQYQVWYVVTSSYFEYLMFALIMLNTICLGMQHYNQSEQMNHISDILNVAFTIIFTLEMILKLIAFKPRGYFGDPWNVFDFLIVIGSIIDVILSEIDTLLASSGGLYCLGGGCGNVDPDESARISSAFFRLFRVMRLIKLLSRAEGVRTLLWTFIKSFQALPYVALLIVMLFFIYAVIGMQMFGKIAMVDGTQINRNNNFQTFPQAVLLLFRCATGEAWQEILLACSYGKRCDPESDYAPGEEYACGTNFAYYYFISFYMLCAFLIINLFVAVIMDNFDYLTRDWSILGPHHLDEFKAIWAEYDPEAKGRIKHLDVVTLLRRIQPPLGFGKFCPHRVACKRLVGMNMPLNSDGTVTFNATLFALVRTALKIKTEGNFEQANEELRAIIKKIWKRTSMKLLDQVIPPIGDDEVTVGKFYATFLIQEHFRKFMKRQEEYYGYRPKKDTVQIQAGLRTIEEEAAPEIHRAISGDLTAEEELERAMVEAAMEEGIFRRTGGLFGQVDNFLERTNSLPPVMANQRPLQFAEMEMEELESPVFLEDFPQNPGTHPLARANTNNANANVAYGNSSHRNSPVFSSIRYERELLEEAGRPVTREGPFSQPCSVSGVNSRSHVDKLERQMSQRRMPKGQVPPSPCQLSQEKHPVHEEGKGPRSWSTETSDSESFEERVPRNSAHKCTAPATTMLIQEALVRGGLDSLAADANFVMATGQALADACQMEPEEVEVAATELLKRESPKGGAMPREP