Structure of the regulatory domain of scallop myosin at 2 A resolution: implications for regulation.

Structure of the Regulatory Domain of Scallop Myosin at 2.8 A Resolution

Isolation of the Regulatory Domain of Scallop Myosin: Role of the Essential Light Chain in Calcium Binding

ADKAASGVLTKLPQKQIQEMKEAFSMIDVDRDGFVSKEDIKAISEQLGRAPDDKELTAMLKEAPGPLNFTMFLSIFSDKL
SGTDSEETIRNAFAMFDEQETKKLNIEYIKDLLENMGDNFNKDEMRMTFKEAPVEGGKFDYVKFTAMIKGSGEEEA

PKLSQDEIDDLKDVFELFDFWDGRDGAVDAFKLGDVCRCLGINPRNEDVFAVGGTHKMGEKSLPFEEFLPAYEGLMDCEQ
GTFADYMEAFKTFDREGQGFISGAELRHVLTALGERLSDEDVDEIIKLTDLQEDLEGNVKYEDFVKKVMAGPYPDK

THE RD FRAGMENT IS A TERNARY COMPLEX OF A PORTION OF HEAVY CHAIN WITH TWO LIGHT CHAINS. CHAIN LABEL A DESIGNATES THE PORTION OF MYOSIN HEAVY CHAIN PRESENT IN THE RD FRAGMENT. CHAIN LABEL B DESIGNATES THE MYOSIN REGULATORY LIGHT CHAIN. CHAIN LABEL C DESIGNATES THE MYOSIN ESSENTIAL LIGHT CHAIN.

SIDE CHAIN ATOMS OF RESIDUE GLU B 153 ARE NOT SEEN IN THE ELECTRON DENSITY.

MYOSIN, CALCIUM BINDING PROTEIN, MUSCLE PROTEIN

MNIDFSDPDFQYLAVDRKKLMKEQTAAFDGKKNCWVPDEKEGFASAEIQSSKGDEITVKIVADSSTRTVKKDDIQSMNPP
KFEKLEDMANMTYLNEASVLYNLRSRYTSGLIYTYSGLFCIAVNPYRRLPIYTDSVIAKYRGKRKTEIPPHLFSVADNAY
QNMVTDRENQSCLITGESGAGKTENTKKVIMYLAKVACAVKKKDEEASDKKEGSLEDQIIQANPVLEAYGNAKTTRNNNS
SRFGKFIRIHFGPTGKIAGADIETYLLEKSRVTYQQSAERNYHIFYQICSNAIPELNDVMLVTPDSGLYSFINQGCLTVD
NIDDVEEFKLCDEAFDILGFTKEEKQSMFKCTASILHMGEMKFKQRPREEQAESDGTAEAEKVAFLCGINAGDLLKALLK
PKVKVGTEMVTKGQNMNQVVNSVGALAKSLYDRMFNWLVRRVNKTLDTKAKRNYYIGVLDIAGFEIFDFNSFEQLCINYT
NERLQQFFNHHMFILEQEEYKKEGIAWEFIDFGMDLQMCIDLIEKPMGILSILEEECMFPKADDKSFQDKLYQNHMGKNR
MFTKPGKPTRPNQGPAHFELHHYAGNVPYSITGWLEKNKDPINENVVALLGASKEPLVAELFKAPEEPAGGGKKKKGKSS
AFQTISAVHRESLNKLMKNLYSTHPHFVRCIIPNELKQPGLVDAELVLHQLQCNGVLEGIRICRKGFPSRLIYSEFKQRY
SILAPNAIPQGFVDGKTVSEKILAGLQMDPAEYRLGTTKVFFKAGVLGNLEEMRDERLSKIISMFQAHIRGYLIRKAYKK
LQDQRIGLSVIQRNIRKWLVLRNWQWWKLYSKVKPLLSIARQEEEMKEQLKQMDKMKEDLAKTERIKKELEEQNVTLLEQ
KNDLFLQLQTLEDSMGDQEERVEKLIMQKADFESQIKELEERLLDEEDAAADLEGIKKKMEADNANLKKDIGDLENTLQK
AEQDKAHKDNQISTLQGEISQQDEHIGKLNKEKKALEEANKKTSDSLQAEEDKCNHLNKLKAKLEQALDELEDNLEREKK
VRGDVEKAKRKVEQDLKSTQENVEDLERVKRELEENVRRKEAEISSLNSKLEDEQNLVSQLQRKIKELQARIEELEEELE
AERNARAKVEKQRAELNRELEELGERLDEAGGATSAQIELNKKREAELLKIRRDLEEASLQHEAQISALRKKHQDAANEM
ADQVDQLQKVKSKLEKDKKDLKREMDDLESQMTHNMKNKGCSEKVMKQFESQMSDLNARLEDSQRSINELQSQKSRLQAE
NSDLTRQLEDAEHRVSVLSKEKSQLSSQLEDARRSLEEETRARSKLQNEVRNMHADMDAIREQLEEEQESKSDVQRQLSK
ANNEIQQWRSKFESEGANRTEELEDQKRKLLGKLSEAEQTTEAANAKCSALEKAKSRLQQELEDMSIEVDRANASVNQME
KKQRAFDKTTAEWQAKVNSLQSELENSQKESRGYSAELYRIKASIEEYQDSIGALRRENKNLADEIHDLTDQLSEGGRST
HELDKARRRLEMEKEELQAALEEAEGALEQEEAKVMRAQLEIATVRNEIDKRIQEKEEEFDNTRRNHQRALESMQASLEA
EAKGKADAMRIKKKLEQDINELEVALDASNRGKAEMEKTVKRYQQQIREMQTSIEEEQRQRDEARESYNMAERRCTLMSG
EVEELRAALEQAERARKASDNELADANDRVNELTSQVSSVQGQKRKLEGDINAMQTDLDEMHGELKGADERCKKAMADAA
RLADELRAEQDHSNQVEKVRKNLESQVKEFQIRLDEAEASSLKGGKKMIQKLESRVHELEAELDNEQRRHAETQKNMRKA
DRRLKELAFQADEDRKNQERLQELIDKLNAKIKTFKRQVEEAEEIAAINLAKYRKAQHELEEAEERADTADSTLQKFRAK
SRSSVSVQRSSVSVSASN