2V51 - JenaLib

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   STRUCTURE OF MAL-RPEL1 COMPLEXED TO ACTIN

Authors :   S. Mouilleron, S. Guettler, C. A. Langer, R. Treisman, N. Q. Mcdonald

Date :   01 Oct 08 (Deposition) - 25 Nov 08 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.35

Chains :   Asym./Biol. Unit : B,D,E,F

Keywords :   Structural Protein-Contractile Protein Complex, Contractile Protein, Structural Protein, Nucleotide-Binding, Transcription Regulation, Transcription, Phosphoprotein, Muscle Protein, Methylation, Atp-Binding, Cytoskeleton, Mal, Rpel, Actin, Nucleus (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Mouilleron, S. Guettler, C. A. Langer, R. Treisman, N. Q. Mcdonald
Molecular Basis For G-Actin Binding To Rpel Motifs From The Serum Response Factor Coactivator Mal.
Embo J. V. 27 3198 2008
PubMed-ID: 19008859 | Reference-DOI: 10.1038/EMBOJ.2008.235

Molecule 1 - ACTIN, ALPHA SKELETAL MUSCLE
	Chains	:	B, D
	Organism Common	:	RABBIT
	Organism Scientific	:	ORYCTOLAGUS CUNICULUS
	Organism Taxid	:	9986
	Synonym	:	ALPHA-ACTIN-1
	Tissue	:	SKELETAL MUSCLE

Molecule 2 - MKL/MYOCARDIN-LIKE PROTEIN 1
	Chains	:	E, F
	Fragment	:	RPEL1 MOTIF, RESIDUES 16-41
	Organism Common	:	MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090
	Synonym	:	MYOCARDIN-RELATED TRANSCRIPTION FACTOR A, MEGAKARYOBLASTIC LEUKEMIA 1 PROTEIN HOMOLOG, BASIC SAP COILED-COIL TRANSCRIPTION ACTIVATOR
	Synthetic	:	YES

		1	2	3	4
Asymmetric/Biological Unit	:	B	D	E	F

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (5, 12)

No.	Name	Count	Type	Full Name
1	ATP	2	Ligand/Ion	ADENOSINE-5'-TRIPHOSPHATE
2	CA	2	Ligand/Ion	CALCIUM ION
3	LAB	2	Ligand/Ion	LATRUNCULIN B
4	PEG	2	Ligand/Ion	DI(HYDROXYETHYL)ETHER
5	SCN	4	Ligand/Ion	THIOCYANATE ION

Asymmetric Unit (10, 10)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLY B:13 , SER B:14 , GLY B:15 , LEU B:16 , LYS B:18 , GLY B:156 , ASP B:157 , GLY B:158 , VAL B:159 , GLY B:182 , ARG B:210 , LYS B:213 , GLU B:214 , GLY B:301 , GLY B:302 , MET B:305 , TYR B:306 , LYS B:336 , CA B:1373 , LAB B:1374 , HOH B:2038 , HOH B:2076 , HOH B:2093 , HOH B:2101 , HOH B:2102 , HOH B:2103	BINDING SITE FOR RESIDUE ATP B1372
02	AC2	SOFTWARE	ATP B:1372 , HOH B:2002 , HOH B:2003 , HOH B:2038 , HOH B:2102	BINDING SITE FOR RESIDUE CA B1373
03	AC3	SOFTWARE	GLY D:13 , SER D:14 , GLY D:15 , LEU D:16 , LYS D:18 , GLY D:156 , ASP D:157 , GLY D:158 , VAL D:159 , GLY D:182 , ARG D:210 , LYS D:213 , GLU D:214 , GLY D:301 , GLY D:302 , MET D:305 , TYR D:306 , LYS D:336 , CA D:1373 , LAB D:1374 , HOH D:2042 , HOH D:2043 , HOH D:2049 , HOH D:2080 , HOH D:2093 , HOH D:2095 , HOH D:2096	BINDING SITE FOR RESIDUE ATP D1372
04	AC4	SOFTWARE	ATP D:1372 , HOH D:2003 , HOH D:2004 , HOH D:2042 , HOH D:2049	BINDING SITE FOR RESIDUE CA D1373
05	AC5	SOFTWARE	GLY B:15 , PRO B:32 , TYR B:69 , ASP B:157 , THR B:186 , ARG B:206 , GLU B:207 , ARG B:210 , LYS B:213 , ATP B:1372	BINDING SITE FOR RESIDUE LAB B1374
06	AC6	SOFTWARE	LYS B:238 , ARG B:254	BINDING SITE FOR RESIDUE PEG B1375
07	AC7	SOFTWARE	GLY D:15 , ILE D:34 , TYR D:69 , ASP D:157 , ARG D:183 , THR D:186 , ARG D:206 , GLU D:207 , ARG D:210 , LYS D:213 , ATP D:1372 , HOH D:2097	BINDING SITE FOR RESIDUE LAB D1374
08	AC8	SOFTWARE	GLY B:197 , SER B:199	BINDING SITE FOR RESIDUE SCN B1376
09	AC9	SOFTWARE	GLY D:197 , SER D:199	BINDING SITE FOR RESIDUE SCN D1375
10	BC1	SOFTWARE	TRP B:79	BINDING SITE FOR RESIDUE SCN B1377

(no "SS Bond" information available for 2V51)

Asymmetric/Biological Unit

No.	Residues
1	Ser D:60	-	Lys D:61
2	Asp D:244	-	Gly D:245

(no "SAP(SNP)/Variant" information available for 2V51)

Asymmetric/Biological Unit (4, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RPEL	PS51073	RPEL repeat profile.	MKL1_MOUSE	15-40 59-84 103-128	2	E:73-97 F:73-97 - -
2	ACTINS_1	PS00406	Actins signature 1.	ACTS_RABIT	55-65	2	B:53-60 D:53-61
3	ACTINS_ACT_LIKE	PS01132	Actins and actin-related proteins signature.	ACTS_RABIT	106-118	2	B:104-116 D:104-116
4	ACTINS_2	PS00432	Actins signature 2.	ACTS_RABIT	358-366	2	B:356-364 D:356-364

(no "Exon" information available for 2V51)

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 B from PDB  Type:PROTEIN  Length:351
 aligned with ACTS_RABIT | P68135 from UniProtKB/Swiss-Prot  Length:377

    Alignment length:367
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       
           ACTS_RABIT     7 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVH 373
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2v51B01 B:5-136,B:335-371  [code=3.            30.420.40    , no name defined]                                                      2v51B02 B:137-180,B:270-334                 2v51B03 B:181-269 Actin; Chain A, domain 4                                               2v51B02 B:137-180,B:270-334  [code=3.30.420.40, no name defined] 2v51B01 B:5-136,B:335-371             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee...eeeeee.......eeee..ee...------------.eehhhhhh----..ee..ee..ee.hhhhhhhhhhhhhhh....hhhhh.eeeee....hhhhhhhhhhhhhhh....eeeeeehhhhhhhhh....eeeeee....eeeeeee..ee.hhhheee..hhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh....hhhhhhhhhhhh....eeee.....eeee.hhhhhhhhh..hhhhhh....hhhhhhhhhhhh.hhhhhhhhhh.eeeehhhhhh.hhhhhhhhhhhhhh.......ee......hhhhhhhhhhhhhhhhhhh.eehhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------ACTINS_1   ----------------------------------------ACTINS_ACT_LI-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ACTINS_2 ------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2v51 B   5 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPR------------SYVGDEAQS----LTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVH 371
                                    14        24        34    |    -       |54     |   -|       74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       
                                                             39           52      60   65

Chain D from PDB  Type:PROTEIN  Length:352
 aligned with ACTS_RABIT | P68135 from UniProtKB/Swiss-Prot  Length:377

    Alignment length:367
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       
           ACTS_RABIT     7 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVH 373
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2v51D01 D:5-136,D:335-371  [code=3.            30.420.40,    no name defined]                                                       2v51D02 D:137-180,D:270-334                 2v51D03 D:181-269 Actin; Chain A, domain 4                                               2v51D02 D:137-180,D:270-334  [code=3.30.420.40, no name defined] 2v51D01 D:5-136,D:335-371             CATH domains
           Pfam domains (1) Actin-2v51D01 D:5-371                                                                                                                                                                                                                                                                                                                                                           Pfam domains (1)
           Pfam domains (2) Actin-2v51D02 D:5-371                                                                                                                                                                                                                                                                                                                                                           Pfam domains (2)
         Sec.struct. author ...eeeee...eeeeee.......eeee..eee..------------.eehhhhhh.---.eee..ee..ee.hhhhhhhhhhhhhhh....hhhhh.eeeee....hhhhhhhhhhhhhhh....eeeeeehhhhhhhhh....eeeeee....eeeeeee..ee.hhhheee..hhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh....hhhhhhhhhhhh....eeee.....eeee.hhhhhhhhh..hhhhhh....hhhhhhhhhhhh.hhhhhhhhhh.eeeehhhhh..hhhhhhhhhhhhhh.......ee......hhhhhhhhhhhhhhhhhhh.eehhhhhh.hhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------ACTINS_1   ----------------------------------------ACTINS_ACT_LI-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ACTINS_2 ------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2v51 D   5 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPR------------SYVGDEAQSK---LTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVH 371
                                    14        24        34    |    -       |54      |  -|       74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       
                                                             39           52       61  65

Chain E from PDB  Type:PROTEIN  Length:28
 aligned with MKL1_MOUSE | Q8K4J6 from UniProtKB/Swiss-Prot  Length:964

    Alignment length:28
                                    22        32        
           MKL1_MOUSE    13 VQSVLQLKLQQRRTREELVSQGIMPPLK  40
               SCOP domains ---------------------------- SCOP domains
               CATH domains ---------------------------- CATH domains
               Pfam domains ---------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhh.hhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ---------------------------- SAPs(SNPs)
                    PROSITE --RPEL  PDB: E:73-97         PROSITE
                 Transcript ---------------------------- Transcript
                 2v51 E  70 RKNVLQLKLQQRRTREELVSQGIMPPLK  97
                                    79        89

Chain F from PDB  Type:PROTEIN  Length:28
 aligned with MKL1_MOUSE | Q8K4J6 from UniProtKB/Swiss-Prot  Length:964

    Alignment length:28
                                    22        32        
           MKL1_MOUSE    13 VQSVLQLKLQQRRTREELVSQGIMPPLK  40
               SCOP domains ---------------------------- SCOP domains
               CATH domains ---------------------------- CATH domains
           Pfam domains (1) ---RPEL-2v51F01 F:73-97      Pfam domains (1)
           Pfam domains (2) ---RPEL-2v51F02 F:73-97      Pfam domains (2)
         Sec.struct. author .hhhhhhhhhh..hhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ---------------------------- SAPs(SNPs)
                    PROSITE --RPEL  PDB: F:73-97         PROSITE
                 Transcript ---------------------------- Transcript
                 2v51 F  70 RKNVLQLKLQQRRTREELVSQGIMPPLK  97
                                    79        89

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 '\|'

(no "SCOP Domain" information available for 2V51)

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Nucleotidyltransferase; domain 5 (788)

Homologous Superfamily: [code=3.30.420.40, no name defined] (217)

Rabbit (Oryctolagus cuniculus) (44)

1a	2v51B01	B:5-136,B:335-371
1b	2v51D01	D:5-136,D:335-371
1c	2v51B02	B:137-180,B:270-334
1d	2v51D02	D:137-180,D:270-334

Architecture: Alpha-Beta Complex (3881)

Topology: Actin; Chain A, domain 4 (156)

Homologous Superfamily: Actin; Chain A, domain 4 (155)

Rabbit (Oryctolagus cuniculus) (44)

2a	2v51B03	B:181-269
2b	2v51D03	D:181-269

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Actin_ATPase (173)

Family: Actin (70)

Oryctolagus cuniculus (Rabbit) (47)

1a	Actin-2v51D01	D:5-371
1b	Actin-2v51D02	D:5-371

Clan: no clan defined [family: RPEL] (4)

Family: RPEL (4)

Mus musculus (Mouse) (4)

2a	RPEL-2v51F01	F:73-97
2b	RPEL-2v51F02	F:73-97

Asymmetric/Biological Unit(hide GO term definitions)

Chain B,D (ACTS_RABIT | P68135)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0048306	calcium-dependent protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	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:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
	GO:0090131	mesenchyme migration	The process in which the population of cells that make up a mesenchyme undergo directed movement.
	GO:0010628	positive regulation of gene expression	Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
	GO:0048741	skeletal muscle fiber development	The process whose specific outcome is the progression of the skeletal muscle fiber over time, from its formation to the mature structure. Muscle fibers are formed by the maturation of myotubes. They can be classed as slow, intermediate/fast or fast.
	GO:0030240	skeletal muscle thin filament assembly	The aggregation, arrangement and bonding together of proteins to form the actin-based thin filaments of myofibrils in skeletal muscle.
cellular component
	GO:0005884	actin filament	A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
	GO:0044297	cell body	The portion of a cell bearing surface projections such as axons, dendrites, cilia, or flagella that includes the nucleus, but excludes all cell projections.
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005856	cytoskeleton	Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
	GO:0030175	filopodium	Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft.
	GO:0030027	lamellipodium	A thin sheetlike process extended by the leading edge of a migrating cell or extending cell process; contains a dense meshwork of actin filaments.
	GO:0001725	stress fiber	A contractile actin filament bundle that consists of short actin filaments with alternating polarity, cross-linked by alpha-actinin and possibly other actin bundling proteins, and with myosin present in a periodic distribution along the fiber.
	GO:0005865	striated muscle thin filament	Filaments formed of actin and associated proteins; attached to Z discs at either end of sarcomeres in myofibrils.

Chain E,F (MKL1_MOUSE | Q8K4J6)

molecular function
	GO:0001105	RNA polymerase II transcription coactivator activity	Interacting selectively and non-covalently with an RNA polymerase II (RNAP II) regulatory transcription factor and also with the RNAP II basal transcription machinery in order to increase the frequency, rate or extent of transcription. Cofactors generally do not bind DNA, but rather mediate protein-protein interactions between activating transcription factors and the basal RNAP II transcription machinery.
	GO:0003779	actin binding	Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
	GO:0003785	actin monomer binding	Interacting selectively and non-covalently with monomeric actin, also known as G-actin.
	GO:0043522	leucine zipper domain binding	Interacting selectively and non-covalently with a leucine zipper domain, a protein secondary structure exhibiting a periodic repetition of leucine residues at every seventh position over a distance covering eight helical turns.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0003713	transcription coactivator activity	Interacting selectively and non-covalently with a activating transcription factor and also with the basal transcription machinery in order to increase the frequency, rate or extent of transcription. Cofactors generally do not bind the template nucleic acid, but rather mediate protein-protein interactions between activating transcription factors and the basal transcription machinery.
	GO:0003700	transcription factor activity, sequence-specific DNA binding	Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
	GO:0000976	transcription regulatory region sequence-specific DNA binding	Interacting selectively and non-covalently with a specific sequence of DNA that is part of a regulatory region that controls transcription of that section of the DNA. The transcribed region might be described as a gene, cistron, or operon.
biological process
	GO:0030036	actin cytoskeleton organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
	GO:0030900	forebrain development	The process whose specific outcome is the progression of the forebrain over time, from its formation to the mature structure. The forebrain is the anterior of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes especially the cerebral hemispheres, the thalamus, and the hypothalamus and especially in higher vertebrates is the main control center for sensory and associative information processing, visceral functions, and voluntary motor functions).
	GO:2001234	negative regulation of apoptotic signaling pathway	Any process that stops, prevents or reduces the frequency, rate or extent of apoptotic signaling pathway.
	GO:0043154	negative regulation of cysteine-type endopeptidase activity involved in apoptotic process	Any process that stops, prevents, or reduces the frequency, rate or extent of a cysteine-type endopeptidase activity involved in the apoptotic process.
	GO:0001764	neuron migration	The characteristic movement of an immature neuron from germinal zones to specific positions where they will reside as they mature.
	GO:0031175	neuron projection development	The process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
	GO:0045944	positive regulation of transcription from RNA polymerase II promoter	Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
	GO:0010735	positive regulation of transcription via serum response element binding	Any process that increases the frequency, rate or extent of the specifically regulated synthesis of RNA from DNA encoding a specific set of genes as a result of a transcription factor interacting with a serum response element (SRE). A serum response element is a short sequence with dyad symmetry found in the promoters of some of the cellular immediate-early genes, regulated by serum.
	GO:0045893	positive regulation of transcription, DNA-templated	Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0006357	regulation of transcription from RNA polymerase II promoter	Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter.
	GO:0006355	regulation of transcription, DNA-templated	Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0051145	smooth muscle cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of a smooth muscle cell; smooth muscle lacks transverse striations in its constituent fibers and are almost always involuntary.
	GO:0006351	transcription, DNA-templated	The cellular synthesis of RNA on a template of DNA.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005654	nucleoplasm	That part of the nuclear content other than the chromosomes or the nucleolus.
	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.

Asymmetric/Biological Unit
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		BC1	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Asp D:244 - Gly D:245	[ RasMol ]
		Ser D:60 - Lys D:61	[ RasMol ]

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	2v51
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	ACTS_RABIT \| P68135
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	MKL1_MOUSE \| Q8K4J6
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1alm	THE STRUCTURE OF THE ACTO-MYOSIN SUBFRAGMENT -ONE COMPLEX. RESULTS OF SEARCHES USING DATA FROM ELECTRON MICROSCOPY AND X-RAY CRYSTALLOGRAPHY. THEORETICAL MODEL, ALPHA CARBONS.
1atn	DEOXYRIBONUCLEASE I COMPLEX WITH ACTIN
1eqy	COMPLEX BETWEEN RABBIT MUSCLE ALPHA-ACTIN: HUMAN GELSOLIN DOMAIN 1
1esv	COMPLEX BETWEEN LATRUNCULIN A:RABBIT MUSCLE ALPHA ACTIN:HUMAN GELSOLIN DOMAIN 1
1h1v	GELSOLIN G4-G6/ACTIN COMPLEX
1ijj	THE X-RAY CRYSTAL STRUCTURE OF THE COMPLEX BETWEEN RABBITSKELETAL MUSCLE ACTIN AND LATRUNCULIN A AT 2.85 ARESOLUTION
1j6z	UNCOMPLEXED ACTIN
1kxp	CRYSTAL STRUCTURE OF HUMAN VITAMIN D-BINDING PROTEIN INCOMPLEX WITH SKELETAL ACTIN
1lcu	POLYLYSINE INDUCES AN ANTIPARALLEL ACTIN DIMER THATNUCLEATES FILAMENT ASSEMBLY: CRYSTAL STRUCTURE AT 3.5 ARESOLUTION
1lot	CRYSTAL STRUCTURE OF THE COMPLEX OF ACTIN WITH VITAMIN D-BINDING PROTEIN
1m8q	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1ma9	CRYSTAL STRUCTURE OF THE COMPLEX OF HUMAN VITAMIN D BINDINGPROTEIN AND RABBIT MUSCLE ACTIN
1mvw	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1nwk	CRYSTAL STRUCTURE OF MONOMERIC ACTIN IN THE ATP STATE
1o18	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o19	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1a	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1b	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1c	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1d	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1e	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1f	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1o1g	MOLECULAR MODELS OF AVERAGED RIGOR CROSSBRIDGES FROMTOMOGRAMS OF INSECT FLIGHT MUSCLE
1p8z	COMPLEX BETWEEN RABBIT MUSCLE ALPHA-ACTIN: HUMAN GELSOLINRESIDUES VAL26-GLU156
1qz5	STRUCTURE OF RABBIT ACTIN IN COMPLEX WITH KABIRAMIDE C
1qz6	STRUCTURE OF RABBIT ACTIN IN COMPLEX WITH JASPISAMIDE A
1rdw	ACTIN CRYSTAL DYNAMICS: STRUCTURAL IMPLICATIONS FOR F-ACTINNUCLEATION, POLYMERIZATION AND BRANCHING MEDIATED BY THEANTI-PARALLEL DIMER
1rfq	ACTIN CRYSTAL DYNAMICS: STRUCTURAL IMPLICATIONS FOR F-ACTINNUCLEATION, POLYMERIZATION AND BRANCHING MEDIATED BY THEANTI-PARALLEL DIMER
1rgi	CRYSTAL STRUCTURE OF GELSOLIN DOMAINS G1-G3 BOUND TO ACTIN
1s22	ABSOLUTE STEREOCHEMISTRY OF ULAPUALIDE A
1sqk	CRYSTAL STRUCTURE OF CIBOULOT IN COMPLEX WITH SKELETAL ACTIN
1t44	STRUCTURAL BASIS OF ACTIN SEQUESTRATION BY THYMOSIN-B4:IMPLICATIONS FOR ARP2/3 ACTIVATION
1uy5	A MODEL OF THYMOSIN_BETA4 BOUND TO MONOMERIC ACTIN USING NMR AND BIOCHEMICAL DATA.
1wua	THE STRUCTURE OF APLYRONINE A-ACTIN COMPLEX
1y64	BNI1P FORMIN HOMOLOGY 2 DOMAIN COMPLEXED WITH ATP-ACTIN
2a3z	TERNARY COMPLEX OF THE WH2 DOMAIN OF WASP WITH ACTIN-DNASE I
2a40	TERNARY COMPLEX OF THE WH2 DOMAIN OF WAVE WITH ACTIN-DNASE I
2a41	TERNARY COMPLEX OF THE WH2 DOMAIN OF WIP WITH ACTIN-DNASE I
2a42	ACTIN-DNASE I COMPLEX
2a5x	CRYSTAL STRUCTURE OF A CROSS-LINKED ACTIN DIMER
2asm	STRUCTURE OF RABBIT ACTIN IN COMPLEX WITH REIDISPONGIOLIDE A
2aso	STRUCTURE OF RABBIT ACTIN IN COMPLEX WITH SPHINXOLIDE B
2asp	STRUCTURE OF RABBIT ACTIN IN COMPLEX WITH REIDISPONGIOLIDE C
2d1k	TERNARY COMPLEX OF THE WH2 DOMAIN OF MIM WITH ACTIN-DNASE I
2ff3	CRYSTAL STRUCTURE OF GELSOLIN DOMAIN 1:N- WASP V2 MOTIFHYBRID IN COMPLEX WITH ACTIN
2ff6	CRYSTAL STRUCTURE OF GELSOLIN DOMAIN 1: CIBOULOT DOMAIN 2HYBRID IN COMPLEX WITH ACTIN
2fxu	X-RAY STRUCTURE OF BISTRAMIDE A- ACTIN COMPLEX AT 1.35 ARESOLUTION.
2v52	STRUCTURE OF MAL-RPEL2 COMPLEXED TO G- ACTIN
2vcp	CRYSTAL STRUCTURE OF N-WASP VC DOMAIN IN COMPLEX WITH SKELETAL ACTIN
2vyp	RABBIT-MUSCLE G-ACTIN IN COMPLEX WITH MYXOBACTERIAL RHIZOPODIN

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (5, 12)

Sites (10, 10)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (4, 8)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (2, 6)

Pfam Domains (2, 4)

Gene Ontology (39, 41)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File