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Title :   PHYSARUM POLYCEPHALUM MYOSIN II REGULATORY DOMAIN

Authors :   J. E. Debreczeni, L. Farkas, V. Harmat, L. Nyitray

Date :   23 Feb 05 (Deposition) - 13 Oct 05 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.75

Chains :   Asym./Biol. Unit : A,B,C

Keywords :   Muscle Protein, Slime Mould, Ef-Hand, Myosin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. E. Debreczeni, L. Farkas, V. Harmat, C. Hetenyi, I. Hajdu, P. Zavodszky, K. Kohama, L. Nyitray
Structural Evidence For Non-Canonical Binding Of Ca2+ To A Canonical Ef-Hand Of A Conventional Myosin.
J. Biol. Chem. V. 280 41458 2005
PubMed-ID: 16227209 | Reference-DOI: 10.1074/JBC.M506315200

Molecule 1 - MAJOR PLASMODIAL MYOSIN HEAVY CHAIN
	Chains	:	A
	EC Number	:	3.6.1.32
	Engineered	:	YES
	Expression System	:	ESCHERICIA COLI
	Expression System Strain	:	BL21
	Expression System Taxid	:	511693
	Expression System Vector	:	PET15B
	Fragment	:	REGULATORY DOMAIN, RESIDUES 778-840
	Organism Scientific	:	PHYSARUM POLYCEPHALUM
	Organism Taxid	:	5791
	Synonym	:	PHYSARUM POLYCEPHALUM MYOSIN II HEAVY CHAIN

Molecule 2 - MYOSIN REGULATORY LIGHT CHAIN
	Chains	:	B
	EC Number	:	3.6.1.32
	Engineered	:	YES
	Expression System	:	ESCHERICIA COLI
	Expression System Strain	:	BL21
	Expression System Taxid	:	511693
	Expression System Vector	:	PET15B
	Fragment	:	REGULATORY DOMAIN, RESIDUES 1-145
	Organism Scientific	:	PHYSARUM POLYCEPHALUM
	Organism Taxid	:	5791
	Synonym	:	PHYSARUM POLYCEPHALUM MYOSIN II ESSENTIAL LIGHT CHAIN, CALCIUM-BINDING LIGHT CHAIN

Molecule 3 - MYOSIN REGULATORY LIGHT CHAIN
	Chains	:	C
	EC Number	:	3.6.1.32
	Engineered	:	YES
	Expression System	:	ESCHERICIA COLI
	Expression System Strain	:	BL21
	Expression System Taxid	:	511693
	Expression System Vector	:	PET15B
	Fragment	:	REGULATORY DOMAIN, RESIDUES 14-155
	Organism Scientific	:	PHYSARUM POLYCEPHALUM
	Organism Taxid	:	5791
	Synonym	:	PHYSARUM POLYCEPHALUM MYOSIN II REGULATORY LIGHT CHAIN

		1	2	3
Asymmetric/Biological Unit	:	A	B	C

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (1, 2)

No.	Name	Count	Type	Full Name
1	CA	2	Ligand/Ion	CALCIUM ION

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASP B:15 , ASP B:17 , ASP B:19 , LYS B:21 , HOH B:2014 , HOH B:2016	BINDING SITE FOR RESIDUE CA B1146
2	AC2	SOFTWARE	GLN B:49 , ASP C:64 , THR C:66 , ASN C:68 , LYS C:70 , GLU C:75	BINDING SITE FOR RESIDUE CA C1155

(no "SS Bond" information available for 2BL0)

(no "Cis Peptide Bond" information available for 2BL0)

(no "SAP(SNP)/Variant" information available for 2BL0)

Asymmetric/Biological Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	MLR_PHYPO	2-37 73-108 109-144	3	B:2-37 B:73-108 B:109-144
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	MLR_PHYPO	15-27	1	B:15-27

(no "Exon" information available for 2BL0)

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:63
 aligned with Q9BJD3_PHYPO | Q9BJD3 from UniProtKB/TrEMBL  Length:2148

    Alignment length:63
                                   787       797       807       817       827       837   
         Q9BJD3_PHYPO   778 RRIGEIVKVVQAAARGWVERKHFRQAREKSVSARIIQDNIRAYLEFKNWAWWKLFAKARPLLV 840
               SCOP domains --------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------- Transcript
                 2bl0 A 778 RRIGEIVKVVQAAARGWVERKHFRQAREKSVSARIIQDNIRAYLEFKNWAWWKLFAKARPLLV 840
                                   787       797       807       817       827       837

Chain B from PDB  Type:PROTEIN  Length:145
 aligned with MLR_PHYPO | P08053 from UniProtKB/Swiss-Prot  Length:147

    Alignment length:145
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140     
            MLR_PHYPO     1 TASADQIQECFQIFDKDNDGKVSIEELGSALRSLGKNPTNAELNTIKGQLNAKEFDLATFKTVYRKPIKTPTEQSKEMLDAFRALDKEGNGTIQEAELRQLLLNLGDALTSSEVEELMKEVSVSGDGAINYESFVDMLVTGYPLA 145
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2bl0B01 B:1-68 EF-hand                                              ----------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhh......ee..hhhhhhhhh....hhhhhhhhhhhhh..eehhhhhhhhhh....hhhhhhhhhhhhhhhhh.....eeehhhhhhhhhhh....hhhhhhhhhh........eeehhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -EF_HAND_2  PDB: B:2-37 UniProt: 2-37-----------------------------------EF_HAND_2  PDB: B:73-108            EF_HAND_2  PDB: B:109-144           - PROSITE (1)
                PROSITE (2) --------------EF_HAND_1    ---------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bl0 B   1 TASADQIQECFQIFDKDNDGKVSIEELGSALRSLGKNPTNAELNTIKGQLNAKEFDLATFKTVYRKPIKTPTEQSKEMLDAFRALDKEGNGTIQEAELRQLLLNLGDALTSSEVEELMKEVSVSGDGAINYESFVDMLVTGYPLA 145
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

Chain C from PDB  Type:PROTEIN  Length:142
 aligned with Q8WSQ4_PHYPO | Q8WSQ4 from UniProtKB/TrEMBL  Length:157

    Alignment length:142
                                    23        33        43        53        63        73        83        93       103       113       123       133       143       153  
         Q8WSQ4_PHYPO    14 GDDQVSEFKEAFELFDSERTGFITKEGLQTVLKQFGVRVEPAAFNEMFNEADATGNGKIQFPEFLSMMGRRMKQTTSEDILRQAFRTFDPEGTGYIPKAALQDALLNLGDRLKPHEFAEFLGITETEKGQIRYDNFINTMFT 155
               SCOP domains d2bl0c_ C: automated matches                                                                                                                   SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhh.....eeehhhhhhhhhhhh...hhhhhhhhhhhhh.....eeehhhhhhhhhhhhh...hhhhhhhhhhhh.......eehhhhhhhhhhh....hhhhhhhhhhhhh....ee.hhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bl0 C  13 GDDQVSEFKEAFELFDSERTGFITKEGLQTVLKQFGVRVEPAAFNEMFNEADATGNGKIQFPEFLSMMGRRMKQTTSEDILRQAFRTFDPEGTGYIPKAALQDALLNLGDRLKPHEFAEFLGITETEKGQIRYDNFINTMFT 154
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: EF Hand-like (739)

Superfamily: EF-hand (657)

Family: automated matches (65)

Protein domain: automated matches (65)

Slime mold (Physarum polycephalum) [TaxId: 5791] (1)

d2bl0c_

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Recoverin; domain 1 (474)

Homologous Superfamily: EF-hand (412)

Physarum polycephalum. Organism_taxid: 5791. (3)

2bl0B01

B:1-68

(no "Pfam Domain" information available for 2BL0)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (Q9BJD3_PHYPO | Q9BJD3)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0003779	actin binding	Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
	GO:0051015	actin filament binding	Interacting selectively and non-covalently with an actin filament, also known as F-actin, a helical filamentous polymer of globular G-actin subunits.
	GO:0003774	motor activity	Catalysis of the generation of force resulting either in movement along a microfilament or microtubule, or in torque resulting in membrane scission, coupled to the hydrolysis of a nucleoside triphosphate.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
cellular component
	GO:0016459	myosin complex	A protein complex, formed of one or more myosin heavy chains plus associated light chains and other proteins, that functions as a molecular motor; uses the energy of ATP hydrolysis to move actin filaments or to move vesicles or other cargo on fixed actin filaments; has magnesium-ATPase activity and binds actin. Myosin classes are distinguished based on sequence features of the motor, or head, domain, but also have distinct tail regions that are believed to bind specific cargoes.

Chain B (MLR_PHYPO | P08053)

molecular function
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
cellular component
	GO:0016459	myosin complex	A protein complex, formed of one or more myosin heavy chains plus associated light chains and other proteins, that functions as a molecular motor; uses the energy of ATP hydrolysis to move actin filaments or to move vesicles or other cargo on fixed actin filaments; has magnesium-ATPase activity and binds actin. Myosin classes are distinguished based on sequence features of the motor, or head, domain, but also have distinct tail regions that are believed to bind specific cargoes.

Chain C (Q8WSQ4_PHYPO | Q8WSQ4)

molecular function
	GO:0005509		calcium ion binding		Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0046872		metal ion binding		Interacting selectively and non-covalently with any metal ion.

Asymmetric/Biological Unit
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Ligands, Modified Residues, Ions (1, 2)

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