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Asym./Biol. Unit (Jmol Viewer)

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Title :   CALMODULIN-SMOOTH MUSCLE LIGHT CHAIN KINASE PEPTIDE COMPLEX

Authors :   K. G. Valentine, H. L. Ng, J. K. Schneeweis, J. K. Kranz, K. K. Frederick, A. J. Wand

Date :   05 Dec 06 (Deposition) - 25 Dec 07 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.08

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

Keywords :   Protein-Peptide Complex, Metal Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. G. Valentine, H. L. Ng, J. K. Schneeweis, J. K. Kranz, K. K. Frederick T. Alber, A. J. Wand
Ultrahigh Resolution Crystal Structure Of Calmodulin-Smooth Muscle Light Kinase Peptide Complex
To Be Published
PubMed: search

Molecule 1 - CALMODULIN
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PET-15B, MODIFIED
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Gene	:	CALM
	Organism Common	:	CHICKEN
	Organism Scientific	:	GALLUS GALLUS
	Organism Taxid	:	9031
	Synonym	:	CAM

Molecule 2 - SMOOTH MUSCLE MYOSIN LIGHT CHAIN KINASE PEPTIDE
	Chains	:	B
	Engineered	:	YES
	Fragment	:	CALMODULIN BINDING DOMAIN
	Other Details	:	THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE CAN BE NATURALLY FOUND IN GALLUS GALLUS (CHICKEN)
	Synthetic	:	YES

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (4, 7)

No.	Name	Count	Type	Full Name
1	ACE	1	Mod. Amino Acid	ACETYL GROUP
2	CA	4	Ligand/Ion	CALCIUM ION
3	NH2	1	Mod. Amino Acid	AMINO GROUP
4	SO4	1	Ligand/Ion	SULFATE ION

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASP A:129 , ASP A:131 , ASP A:133 , GLN A:135 , GLU A:140 , HOH A:536	BINDING SITE FOR RESIDUE CA A 401
2	AC2	SOFTWARE	ASP A:93 , ASP A:95 , ASN A:97 , TYR A:99 , GLU A:104 , HOH A:511	BINDING SITE FOR RESIDUE CA A 402
3	AC3	SOFTWARE	ASP A:20 , ASP A:22 , ASP A:24 , THR A:26 , GLU A:31 , HOH A:503	BINDING SITE FOR RESIDUE CA A 403
4	AC4	SOFTWARE	ASP A:56 , ASP A:58 , ASN A:60 , THR A:62 , GLU A:67 , HOH A:550	BINDING SITE FOR RESIDUE CA A 404
5	AC5	SOFTWARE	ARG A:90 , ARG A:126 , HOH A:555 , HOH A:610	BINDING SITE FOR RESIDUE SO4 A 501

(no "SS Bond" information available for 2O5G)

(no "Cis Peptide Bond" information available for 2O5G)

(no "SAP(SNP)/Variant" information available for 2O5G)

Asymmetric/Biological Unit (2, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	CALM_CHICK	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	CALM_CHICK	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141

(no "Exon" information available for 2O5G)

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
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Chain A from PDB  Type:PROTEIN  Length:147
 aligned with CALM_CHICK | P62149 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:147
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       
          CALM_CHICK      2 ADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  148
               SCOP domains d2o5ga_ A: Calmodulin                                                                                                                               SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) -----------------------------------------------------------------------------------EF_hand_5-2o5gA01 A:84-145                                    -- Pfam domains (1)
           Pfam domains (2) -----------------------------------------------------------------------------------EF_hand_5-2o5gA02 A:84-145                                    -- Pfam domains (2)
         Sec.struct. author ....hhhhhhhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhhhh......eehhhhhhhhhh.....hhhhhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhhhh......eehhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ------EF_HAND_2  PDB: A:7-42 UniProt: 8-43EF_HAND_2  PDB: A:43-78             -EF_HAND_2  PDB: A:80-115            EF_HAND_2  PDB: A:116-147        PROSITE (1)
                PROSITE (2) -------------------EF_HAND_1    -----------------------EF_HAND_1    ------------------------EF_HAND_1    -----------------------EF_HAND_1    ------ PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2o5g A    1 ADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  147
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

Chain B from PDB  Type:PROTEIN  Length:21
 aligned with MYLK_CHICK | P11799 from UniProtKB/Swiss-Prot  Length:1906

    Alignment length:21
                                  1738      1748 
          MYLK_CHICK   1729 MARRKWQKTGHAVRAIGRLSS 1749
               SCOP domains --------------------- SCOP domains
               CATH domains --------------------- CATH domains
               Pfam domains --------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------- SAPs(SNPs)
                    PROSITE --------------------- PROSITE
                 Transcript --------------------- Transcript
                2o5g B    0 xARRKWQKTGHAVRAIGRLSx   20
                            |        9        19|
                            0-ACE              20-NH2

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: Calmodulin-like (356)

Protein domain: Calmodulin (152)

Chicken (Gallus gallus) [TaxId: 9031] (9)

d2o5ga_

(no "CATH Domain" information available for 2O5G)

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: EF_hand (270)

Family: EF_hand_5 (126)

Gallus gallus (Chicken) (32)

1a	EF_hand_5-2o5gA01	A:84-145
1b	EF_hand_5-2o5gA02	A:84-145

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (CALM_CHICK | P62149)

molecular function
	GO:0031997	N-terminal myristoylation domain binding	Interacting selectively and non-covalently with the N-terminus of a protein that has the potential to be, or has been, modified by N-terminal myristoylation. Binding affinity is typically altered by myristoylation; for example, N-terminal myristoylation of HIV Nef increases its affinity for calmodulin.
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0044325	ion channel binding	Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0017022	myosin binding	Interacting selectively and non-covalently with any part of a myosin complex; myosins are any of a superfamily of molecular motor proteins that bind to actin and use the energy of ATP hydrolysis to generate force and movement along actin filaments.
	GO:0043274	phospholipase binding	Interacting selectively and non-covalently with any phospholipase, enzymes that catalyze of the hydrolysis of a glycerophospholipid.
	GO:0019904	protein domain specific binding	Interacting selectively and non-covalently with a specific domain of a protein.
	GO:0019901	protein kinase binding	Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.
	GO:0072542	protein phosphatase activator activity	Increases the activity of a protein phosphatase, an enzyme which catalyzes of the removal of a phosphate group from a protein substrate molecule.
	GO:0031996	thioesterase binding	Interacting selectively and non-covalently with any thioesterase enzyme.
	GO:0031432	titin binding	Interacting selectively and non-covalently with titin, any of a family of giant proteins found in striated and smooth muscle. In striated muscle, single titin molecules span half the sarcomere, with their N- and C-termini in the Z-disc and M-line, respectively.
biological process
	GO:0005513	detection of calcium ion	The series of events in which a calcium ion stimulus is received by a cell and converted into a molecular signal.
	GO:0030801	positive regulation of cyclic nucleotide metabolic process	Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways involving cyclic nucleotides.
	GO:0051343	positive regulation of cyclic-nucleotide phosphodiesterase activity	Any process that activates or increases the frequency, rate or extent of cyclic nucleotide phosphodiesterase activity, the catalysis of the reaction: nucleotide 3',5'-cyclic phosphate + H2O = nucleotide 5'-phosphate.
	GO:0032516	positive regulation of phosphoprotein phosphatase activity	Any process that activates or increases the activity of a phosphoprotein phosphatase.
	GO:0035307	positive regulation of protein dephosphorylation	Any process that activates or increases the frequency, rate or extent of removal of phosphate groups from a protein.
	GO:0060316	positive regulation of ryanodine-sensitive calcium-release channel activity	Any process that increases the activity of a ryanodine-sensitive calcium-release channel. The ryanodine-sensitive calcium-release channel catalyzes the transmembrane transfer of a calcium ion by a channel that opens when a ryanodine class ligand has been bound by the channel complex or one of its constituent parts.
	GO:0055117	regulation of cardiac muscle contraction	Any process that modulates the frequency, rate or extent of cardiac muscle contraction.
	GO:0032465	regulation of cytokinesis	Any process that modulates the frequency, rate or extent of the division of the cytoplasm of a cell and its separation into two daughter cells.
	GO:0002027	regulation of heart rate	Any process that modulates the frequency or rate of heart contraction.
	GO:0010880	regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum	Any process that modulates the rate, frequency or extent of release of sequestered calcium ion into cytosol by the sarcoplasmic reticulum, the process in which the release of sequestered calcium ion by sarcoplasmic reticulum into cytosol occurs via calcium release channels.
	GO:0051592	response to calcium ion	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a calcium ion stimulus.
	GO:0021762	substantia nigra development	The progression of the substantia nigra over time from its initial formation until its mature state. The substantia nigra is the layer of gray substance that separates the posterior parts of the cerebral peduncles (tegmentum mesencephali) from the anterior parts; it normally includes a posterior compact part with many pigmented cells (pars compacta) and an anterior reticular part whose cells contain little pigment (pars reticularis).
cellular component
	GO:0034704	calcium channel complex	An ion channel complex through which calcium ions pass.
	GO:0005813	centrosome	A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
	GO:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
	GO:0030017	sarcomere	The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs.
	GO:0005876	spindle microtubule	Any microtubule that is part of a mitotic or meiotic spindle; anchored at one spindle pole.
	GO:0000922	spindle pole	Either of the ends of a spindle, where spindle microtubules are organized; usually contains a microtubule organizing center and accessory molecules, spindle microtubules and astral microtubules.
	GO:0031982	vesicle	Any small, fluid-filled, spherical organelle enclosed by membrane.

Chain B (MYLK_CHICK | P11799)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0005516	calmodulin binding	Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states.
	GO:0016301	kinase activity	Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0004687	myosin light chain kinase activity	Catalysis of the reaction: ATP + myosin-light-chain = ADP + myosin-light-chain phosphate.
	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.
	GO:0004672	protein kinase activity	Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
	GO:0004674	protein serine/threonine kinase activity	Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
	GO:0016310	phosphorylation	The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
	GO:0030335	positive regulation of cell migration	Any process that activates or increases the frequency, rate or extent of cell migration.
	GO:0006468	protein phosphorylation	The process of introducing a phosphate group on to a protein.
	GO:0006939	smooth muscle contraction	A process in which force is generated within smooth muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 2o5g)

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(no "Related Entries Specified in the PDB File" available for 2O5G)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 7)

Sites (5, 5)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 8)

Exons (0, 0)

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SCOP Domains (1, 1)

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