3AAA - JenaLib

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Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF ACTIN CAPPING PROTEIN IN COMPLEX WITH V-1

Authors :   S. Takeda, S. Minakata, A. Narita, M. Kitazawa, T. Yamakuni, Y. Maeda, Y

Date :   12 Nov 09 (Deposition) - 04 Aug 10 (Release) - 04 Aug 10 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym. Unit : A,B,C
Biol. Unit 1: A,B  (1x)
Biol. Unit 2: C  (1x)

Keywords :   Actin Capping Protein, Barbed End Capping, Inhibition, Protein Binding, Actin Capping, Actin-Binding, Cytoskeleton, Ank Repeat (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Takeda, S. Minakata, R. Koike, I. Kawahata, A. Narita, M. Kitazawa, M. Ota, T. Yamakuni, Y. Maeda, Y. Nitanai
Two Distinct Mechanisms For Actin Capping Protein Regulation--Steric And Allosteric Inhibition
Plos Biol. V. 8 E1000 2010
PubMed-ID: 20625546 | Reference-DOI: 10.1371/JOURNAL.PBIO.1000416

Molecule 1 - F-ACTIN-CAPPING PROTEIN SUBUNIT ALPHA-1
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PETDUET1
	Expression System Strain	:	ROSETTA2 (DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	CAPZA1
	Organism Common	:	CHICKEN
	Organism Scientific	:	GALLUS GALLUS
	Organism Taxid	:	9031
	Synonym	:	CAPZ 36/32, BETA-ACTININ SUBUNIT I

Molecule 2 - F-ACTIN-CAPPING PROTEIN SUBUNIT BETA ISOFORMS 1 AND 2
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PETDUET1
	Expression System Strain	:	ROSETTA2 (DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	CAPZB
	Organism Common	:	CHICKEN
	Organism Scientific	:	GALLUS GALLUS
	Organism Taxid	:	9031
	Synonym	:	CAPZ B1 AND B2, CAPZ 36/32, BETA-ACTININ SUBUNIT II

Molecule 3 - MYOTROPHIN
	Chains	:	C
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PGEX6P1
	Expression System Strain	:	ROSETTA2 (DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	MTPN
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	PROTEIN V-1

		1	2	3
Asymmetric Unit	:	A	B	C
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (1x)	:			C

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 2)

No.	Name	Count	Type	Full Name
1	IPA	2	Ligand/Ion	ISOPROPYL ALCOHOL

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	IPA	2	Ligand/Ion	ISOPROPYL ALCOHOL

Biological Unit 2 (0, 0)

No.	Name	Count	Type	Full Name
1	IPA	-1	Ligand/Ion	ISOPROPYL ALCOHOL

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLN A:213 , ASN B:77 , PRO B:89 , ALA B:91 , HOH B:1029	BINDING SITE FOR RESIDUE IPA B 1001
2	AC2	SOFTWARE	ASP A:214 , VAL A:216 , HOH A:288 , SER B:76 , LYS B:78	BINDING SITE FOR RESIDUE IPA B 1002

(no "SS Bond" information available for 3AAA)

Asymmetric Unit

No.	Residues
1	Pro A:183	-	Pro A:184
2	Asp B:80	-	Pro B:81

Asymmetric Unit (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CAZA1_CHICK_001 *	F	163	I	CAZA1_CHICK	---	---	A	F	163	I
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 1 (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CAZA1_CHICK_001 *	F	163	I	CAZA1_CHICK	---	---	A	F	163	I
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Biological Unit 2 (0, 0)

						dbSNP	PDB
No.	Source	Variant ID	Variant	UniProt ID	Status	ID	Chain	Variant

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric Unit (5, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ANK_REP_REGION	PS50297	Ankyrin repeat region circular profile.	MTPN_HUMAN	6-105	1	C:6-105
2	ANK_REPEAT	PS50088	Ankyrin repeat profile.	MTPN_HUMAN	34-66 67-99	2	C:34-66 C:67-99
3	F_ACTIN_CAPPING_BETA	PS00231	F-actin capping protein beta subunit signature.	CAPZB_CHICK	62-67	1	B:62-67
4	F_ACTIN_CAPPING_A_1	PS00748	F-actin capping protein alpha subunit signature 1.	CAZA1_CHICK	196-204	1	A:196-204
5	F_ACTIN_CAPPING_A_2	PS00749	F-actin capping protein alpha subunit signature 2.	CAZA1_CHICK	256-266	1	A:256-266

Biological Unit 1 (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ANK_REP_REGION	PS50297	Ankyrin repeat region circular profile.	MTPN_HUMAN	6-105	0	-
2	ANK_REPEAT	PS50088	Ankyrin repeat profile.	MTPN_HUMAN	34-66 67-99	0	- -
3	F_ACTIN_CAPPING_BETA	PS00231	F-actin capping protein beta subunit signature.	CAPZB_CHICK	62-67	1	B:62-67
4	F_ACTIN_CAPPING_A_1	PS00748	F-actin capping protein alpha subunit signature 1.	CAZA1_CHICK	196-204	1	A:196-204
5	F_ACTIN_CAPPING_A_2	PS00749	F-actin capping protein alpha subunit signature 2.	CAZA1_CHICK	256-266	1	A:256-266

Biological Unit 2 (2, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ANK_REP_REGION	PS50297	Ankyrin repeat region circular profile.	MTPN_HUMAN	6-105	1	C:6-105
2	ANK_REPEAT	PS50088	Ankyrin repeat profile.	MTPN_HUMAN	34-66 67-99	2	C:34-66 C:67-99
3	F_ACTIN_CAPPING_BETA	PS00231	F-actin capping protein beta subunit signature.	CAPZB_CHICK	62-67	0	-
4	F_ACTIN_CAPPING_A_1	PS00748	F-actin capping protein alpha subunit signature 1.	CAZA1_CHICK	196-204	0	-
5	F_ACTIN_CAPPING_A_2	PS00749	F-actin capping protein alpha subunit signature 2.	CAZA1_CHICK	256-266	0	-

Asymmetric Unit (8, 8)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.2a	ENSGALT00000006425	2a	ENSGALE00000042043	chr21:4747591-4747501	91	CAPZB_CHICK	1-30	30	1	B:2-30	29
1.3	ENSGALT00000006425	3	ENSGALE00000042051	chr21:4734482-4734361	122	CAPZB_CHICK	31-71	41	1	B:31-71	41
1.4	ENSGALT00000006425	4	ENSGALE00000042045	chr21:4723866-4723753	114	CAPZB_CHICK	71-109	39	1	B:71-109	39
1.5	ENSGALT00000006425	5	ENSGALE00000042044	chr21:4709816-4709675	142	CAPZB_CHICK	109-156	48	1	B:109-156	48
1.6	ENSGALT00000006425	6	ENSGALE00000042049	chr21:4709146-4709030	117	CAPZB_CHICK	157-195	39	1	B:157-195	39
1.7	ENSGALT00000006425	7	ENSGALE00000042042	chr21:4702101-4702036	66	CAPZB_CHICK	196-217	22	1	B:196-217	22
1.8	ENSGALT00000006425	8	ENSGALE00000042048	chr21:4701227-4701151	77	CAPZB_CHICK	218-243	26	1	B:218-243	26
1.9	ENSGALT00000006425	9	ENSGALE00000042047	chr21:4699862-4699750	113	CAPZB_CHICK	243-276	34	1	B:243-251	9
1.10a	ENSGALT00000006425	10a	ENSGALE00000042050	chr21:4697971-4697725	247	CAPZB_CHICK	-	0	0	-	-

Asymmetric 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:267
 aligned with CAZA1_CHICK | P13127 from UniProtKB/Swiss-Prot  Length:286

    Alignment length:267
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       
          CAZA1_CHICK     9 SDEEKVRIAAKFITHAPPGEFNEVFNDVRLLLNNDNLLREGAAHAFAQYNMDQFTPVKIEGYDDQVLITEHGDLGNGRFLDPRNKISFKFDHLRKEASDPQPEDTESALKQWRDACDSALRAYVKDHYPNGFCTVYGKSIDGQQTIIACIESHQFQPKNFWNGRWRSEWKFTITPPTAQVAAVLKIQVHYYEDGNVQLVSHKDIQDSVQVSSDVQTAKEFIKIIENAENEYQTAISENYQTMSDTTFKALRRQLPVTRTKIDWNKIL 275
               SCOP domains d3aaaa_ A: Capz alpha-1 subunit                                                                                                                                                                                                                                             SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.eee........eeehhh.eee..eeee....eeeeee....eeeeeee......hhhhhhhhhhhhhhhhhhhh..eeeeeeeeee..eeeeeeeeeeeeeehhh.eeeeeeeeeeeeee..eeeeeeeeeeeeee....eeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..........hhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------I---------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------F_ACTIN_C---------------------------------------------------F_ACTIN_CAP--------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3aaa A   9 SDEEKVRIAAKFITHAPPGEFNEVFNDVRLLLNNDNLLREGAAHAFAQYNMDQFTPVKIEGYDDQVLITEHGDLGNGRFLDPRNKISFKFDHLRKEASDPQPEDTESALKQWRDACDSALRAYVKDHYPNGFCTVYGKSIDGQQTIIACIESHQFQPKNFWNGRWRSEWKFTITPPTAQVAAVLKIQVHYYEDGNVQLVSHKDIQDSVQVSSDVQTAKEFIKIIENAENEYQTAISENYQTMSDTTFKALRRQLPVTRTKIDWNKIL 275
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268

Chain B from PDB  Type:PROTEIN  Length:250
 aligned with CAPZB_CHICK | P14315 from UniProtKB/Swiss-Prot  Length:277

    Alignment length:250
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251
          CAPZB_CHICK     2 SDQQLDCALDLMRRLPPQQIEKNLSDLIDLVPSLCEDLLSSVDQPLKIARDKVVGKDYLLCDYNRDGDSYRSPWSNKYDPPLEDGAMPSARLRKLEVEANNAFDQYRDLYFEGGVSSVYLWDLDHGFAGVILIKKAGDGSKKIKGCWDSIHVVEVQEKSSGRTAHYKLTSTVMLWLQTNKTGSGTMNLGGSLTRQMEKDETVSDSSPHIANIGRLVEDMENKIRSTLNEIYFGKTKDIVNGLRSIDAIPD 251
               SCOP domains d3aaab_ B: Capz beta-1 subunit                                                                                                                                                                                                                             SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhh.....eee......eee.hhh.ee..eee......ee.........hhhhhhhhhhhhhhhhhhhhhhhh..eeeeeeeee..eeeeeeeeeeee.....eeeeeeeeeeeeeeeehhh.eeeeeeeeeeeeeeeeee...eeeeeeeeeeeeeeeeee.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ------------------------------------------------------------F_ACTI---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (3)
           Transcript 1 (1) Exon 1.2a  PDB: B:2-30       Exon 1.3  PDB: B:31-71 UniProt: 31-71    -------------------------------------Exon 1.5  PDB: B:109-156 UniProt: 109-156       Exon 1.6  PDB: B:157-195               Exon 1.7              Exon 1.8  PDB: B:218-243  -------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------Exon 1.4  PDB: B:71-109 UniProt: 71-109-------------------------------------------------------------------------------------------------------------------------------------Exon 1.9  Transcript 1 (2)
                 3aaa B   2 SDQQLDCALDLMRRLPPQQIEKNLSDLIDLVPSLCEDLLSSVDQPLKIARDKVVGKDYLLCDYNRDGDSYRSPWSNKYDPPLEDGAMPSARLRKLEVEANNAFDQYRDLYFEGGVSSVYLWDLDHGFAGVILIKKAGDGSKKIKGCWDSIHVVEVQEKSSGRTAHYKLTSTVMLWLQTNKTGSGTMNLGGSLTRQMEKDETVSDSSPHIANIGRLVEDMENKIRSTLNEIYFGKTKDIVNGLRSIDAIPD 251
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251

Chain C from PDB  Type:PROTEIN  Length:117
 aligned with MTPN_HUMAN | P58546 from UniProtKB/Swiss-Prot  Length:118

    Alignment length:117
                                    11        21        31        41        51        61        71        81        91       101       111       
           MTPN_HUMAN     2 CDKEFMWALKNGDLDEVKDYVAKGEDVNRTLEGGRKPLHYAADCGQLEILEFLLLKGADINAPDKHHITPLLSAVYEGHVSCVKLLLSKGADKTVKGPDGLTAFEATDNQAIKALLQ 118
               SCOP domains d3aaac_ C: automated matches                                                                                          SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhh.hhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhh.............hhhhhhhhhhhhhhhhhhhhh............hhhhhh.hhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----ANK_REP_REGION  PDB: C:6-105 UniProt: 6-105                                                         ------------- PROSITE (1)
                PROSITE (2) --------------------------------ANK_REPEAT  PDB: C:34-66         ANK_REPEAT  PDB: C:67-99         ------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------- Transcript
                 3aaa C   2 CDKEFMWALKNGDLDEVKDYVAKGEDVNRTLEGGRKPLHYAADCGQLEILEFLLLKGADINAPDKHHITPLLSAVYEGHVSCVKLLLSKGADKTVKGPDGLTAFEATDNQAIKALLQ 118
                                    11        21        31        41        51        61        71        81        91       101       111

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 "CATH Domain" information available for 3AAA)

(no "Pfam Domain" information available for 3AAA)

Asymmetric Unit(hide GO term definitions)

Chain A (CAZA1_CHICK | P13127)

molecular function
	GO:0003779	actin binding	Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
biological process
	GO:0051693	actin filament capping	The binding of a protein or protein complex to the end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
	GO:0051016	barbed-end actin filament capping	The binding of a protein or protein complex to the barbed (or plus) end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
cellular component
	GO:0008290	F-actin capping protein complex	A heterodimer consisting of alpha and beta subunits that binds to and caps the barbed ends of actin filaments, thereby regulating the polymerization of actin monomers but not severing actin filaments.
	GO:0071203	WASH complex	A protein complex that localizes at the surface of endosomes, where it recruits and activates the Arp2/3 complex to induce actin polymerization. In human, the WASH complex is composed of F-actin-capping protein subunits alpha and beta, WASH1, FAM21, KIAA1033, KIAA0196 and CCDC53.
	GO:0030018	Z disc	Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached.
	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: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.

Chain B (CAPZB_CHICK | P14315)

molecular function
	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:0048487	beta-tubulin binding	Interacting selectively and non-covalently with the microtubule constituent protein beta-tubulin.
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:0051693	actin filament capping	The binding of a protein or protein complex to the end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
	GO:0051016	barbed-end actin filament capping	The binding of a protein or protein complex to the barbed (or plus) end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
	GO:0000902	cell morphogenesis	The developmental process in which the size or shape of a cell is generated and organized.
	GO:0030030	cell projection organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a prolongation or process extending from a cell, e.g. a flagellum or axon.
	GO:0007010	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.
	GO:0030032	lamellipodium assembly	Formation of a lamellipodium, a thin sheetlike extension of the surface of a migrating cell.
	GO:0048747	muscle fiber development	The process whose specific outcome is the progression of the muscle fiber over time, from its formation to the mature structure. In skeletal muscle, fibers are formed by the maturation of myotubes. They can be classed as slow, intermediate/fast or fast.
	GO:0051490	negative regulation of filopodium assembly	Any process that stops, prevents, or reduces the frequency, rate or extent of the assembly of a filopodium, a thin, stiff protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal growth cone.
	GO:0031115	negative regulation of microtubule polymerization	Any process that stops, prevents, or reduces the frequency, rate or extent of microtubule polymerization.
	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:0022604	regulation of cell morphogenesis	Any process that modulates the frequency, rate or extent of cell morphogenesis. Cell morphogenesis is the developmental process in which the shape of a cell is generated and organized.
	GO:0010591	regulation of lamellipodium assembly	Any process that modulates the rate, frequency or extent of the formation of a lamellipodium, a thin sheetlike extension of the surface of a migrating cell.
	GO:0090036	regulation of protein kinase C signaling	Any process that modulates the frequency, rate, or extent of a series of reactions, mediated by the intracellular serine/threonine kinase protein kinase C, which occurs as a result of a single trigger reaction or compound.
cellular component
	GO:0008290	F-actin capping protein complex	A heterodimer consisting of alpha and beta subunits that binds to and caps the barbed ends of actin filaments, thereby regulating the polymerization of actin monomers but not severing actin filaments.
	GO:0031674	I band	A region of a sarcomere that appears as a light band on each side of the Z disc, comprising a region of the sarcomere where thin (actin) filaments are not overlapped by thick (myosin) filaments; contains actin, troponin, and tropomyosin; each sarcomere includes half of an I band at each end.
	GO:0030018	Z disc	Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached.
	GO:0001669	acrosomal vesicle	A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome.
	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:0005903	brush border	The dense covering of microvilli on the apical surface of a epithelial cells in tissues such as the intestine, kidney, and choroid plexus; the microvilli aid absorption by increasing the surface area of the cell.
	GO:0030863	cortical cytoskeleton	The portion of the cytoskeleton that lies just beneath the plasma membrane.
	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:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0014704	intercalated disc	A complex cell-cell junction at which myofibrils terminate in cardiomyocytes; mediates mechanical and electrochemical integration between individual cardiomyocytes. The intercalated disc contains regions of tight mechanical attachment (fasciae adherentes and desmosomes) and electrical coupling (gap junctions) between adjacent cells.
	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:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

Chain C (MTPN_HUMAN | P58546)

molecular function
	GO:0043565	sequence-specific DNA binding	Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
biological process
	GO:0006584	catecholamine metabolic process	The chemical reactions and pathways involving any of a group of physiologically important biogenic amines that possess a catechol (3,4-dihydroxyphenyl) nucleus and are derivatives of 3,4-dihydroxyphenylethylamine.
	GO:0016049	cell growth	The process in which a cell irreversibly increases in size over time by accretion and biosynthetic production of matter similar to that already present.
	GO:0071260	cellular response to mechanical stimulus	Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a mechanical stimulus.
	GO:0021707	cerebellar granule cell differentiation	The process in which neuroblasts acquire specialized structural and/or functional features that characterize the mature cerebellar granule cell. Differentiation includes the processes involved in commitment of a neuroblast to a granule cell fate. A granule cell is a glutamatergic interneuron found in the cerebellar cortex.
	GO:0030182	neuron differentiation	The process in which a relatively unspecialized cell acquires specialized features of a neuron.
	GO:0051092	positive regulation of NF-kappaB transcription factor activity	Any process that activates or increases the frequency, rate or extent of activity of the transcription factor NF-kappaB.
	GO:0010613	positive regulation of cardiac muscle hypertrophy	Any process that increases the rate, frequency or extent of the enlargement or overgrowth of all or part of the heart due to an increase in size (not length) of individual cardiac muscle fibers, without cell division.
	GO:0030307	positive regulation of cell growth	Any process that activates or increases the frequency, rate, extent or direction of cell growth.
	GO:0010557	positive regulation of macromolecule biosynthetic process	Any process that increases the rate, frequency or extent of the chemical reactions and pathways resulting in the formation of a macromolecule, any molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass.
	GO:0051247	positive regulation of protein metabolic process	Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways involving a protein.
	GO:2000812	regulation of barbed-end actin filament capping	Any process that modulates the frequency, rate or extent of barbed-end actin filament capping.
	GO:0016202	regulation of striated muscle tissue development	Any process that modulates the frequency, rate or extent of striated muscle development.
	GO:0006417	regulation of translation	Any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
	GO:0043403	skeletal muscle tissue regeneration	The regrowth of skeletal muscle tissue to repair injured or damaged muscle fibers in the postnatal stage.
	GO:0051146	striated muscle cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of a striated muscle cell; striated muscle fibers are divided by transverse bands into striations, and cardiac and voluntary muscle are types of striated muscle.
cellular component
	GO:0008290	F-actin capping protein complex	A heterodimer consisting of alpha and beta subunits that binds to and caps the barbed ends of actin filaments, thereby regulating the polymerization of actin monomers but not severing actin filaments.
	GO:0030424	axon	The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
	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: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:0048471	perinuclear region of cytoplasm	Cytoplasm situated near, or occurring around, the nucleus.

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	3aaa
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1izn	THE SAME PROTEIN IN APO-FORM
3aa0	THE SAME PROTEIN IN COMPLEXED WITH THE 21 AA LENGTH CARMIL FRAGMENT
3aa1	THE SAME PROTEIN IN COMPLEXED WITH THE 23 AA LENGTH CKIP-1 FRAGMENT
3aa6	THE SAME PROTEIN IN COMPLEXED WITH THE 23 AA LENGTH CD2AP FRAGMENT
3aa7	THE SAME PROTEIN IN APO-FORM
3aae	THE SAME PROTEIN IN COMPLEXED WITH THE 32 AA LENGTH CARMIL FRAGMENT

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 2)

Sites (2, 2)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

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SAPs(SNPs)/Variants (1, 1)

PROSITE Motifs (5, 6)

Exons (8, 8)

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SCOP Domains (3, 3)

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Pfam Domains (0, 0)

Gene Ontology (51, 62)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File