1BK2 - JenaLib

Title :   A-SPECTRIN SH3 DOMAIN D48G MUTANT

Authors :   J. C. Martinez, M. T. Pisabarro, L. Serrano

Date :   14 Jul 98 (Deposition) - 16 Feb 99 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.01

Chains :   Asym./Biol. Unit : A

Keywords :   Sh3-Domain, Cytoskeleton, Calmodulin-Binding, Actin-Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. C. Martinez, M. T. Pisabarro, L. Serrano
Obligatory Steps In Protein Folding And The Conformational Diversity Of The Transition State.
Nat. Struct. Biol. V. 5 721 1998
PubMed-ID: 9699637 | Reference-DOI: 10.1038/1418
(for further references see the PDB file header)

Compounds

Molecule 1 - A-SPECTRIN
	Cell Line	:	BL21
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PBR322
	Expression System Strain	:	BL21 (DE3)
	Expression System Taxid	:	469008
	Expression System Vector	:	PBAT4
	Fragment	:	SH3-DOMAIN
	Mutation	:	YES
	Organism Common	:	CHICKEN
	Organism Scientific	:	GALLUS GALLUS
	Organism Taxid	:	9031

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

Asymmetric/Biological Unit

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Chain A from PDB  Type:PROTEIN  Length:57
 aligned with SPTN1_CHICK | P07751 from UniProtKB/Swiss-Prot  Length:2477

    Alignment length:57
                                   978       988       998      1008      1018       
         SPTN1_CHICK    969 KELVLALYDYQEKSPREVTMKKGDILTLLNSTNKDWWKVEVNDRQGFVPAAYVKKLD 1025
               SCOP domains d1bk2a_ A: alpha-Spectrin, SH3 domain                     SCOP domains
               CATH domains 1bk2A00 A:6-62 SH3 Domains                                CATH domains
               Pfam domains --------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee..................eeeeee.....eeeeee..eeeeeehhheeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------- Transcript
                1bk2 A    6 KELVLALYDYQEKSPREVTMKKGDILTLLNSTNKDWWKVEVNGRQGFVPAAYVKKLD   62
                                    15        25        35        45        55

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (SPTN1_CHICK | P07751)

molecular function
	GO:0003779	actin binding	Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	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:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
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.
cellular component
	GO:0005938	cell cortex	The region of a cell that lies just beneath the plasma membrane and often, but not always, contains a network of actin filaments and associated proteins.
	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.

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