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(-) Description

Title :  CRYSTAL STRUCTURE OF CALCIUM-BOUND PROTEASE CORE OF CALPAIN II REVEALS THE BASIS FOR INTRINSIC INACTIVATION
 
Authors :  T. Moldoveanu, C. M. Hosfield, D. Lim, Z. Jia, P. L. Davies
Date :  07 Aug 02  (Deposition) - 29 Apr 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.95
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Calpain Cysteine Protease Fold, Two Cooperative Calcium Sites, Helix Instability, Tryptophan-Based Active Site Blockage, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  T. Moldoveanu, C. M. Hosfield, D. Lim, Z. Jia, P. L. Davies
Calpain Silencing By A Reversible Intrinsic Mechanism.
Nat. Struct. Biol. V. 10 371 2003
PubMed-ID: 12665854  |  Reference-DOI: 10.1038/NSB917
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CALPAIN II, CATALYTIC SUBUNIT
    ChainsA, B
    EC Number3.4.22.17
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPET24D
    Expression System StrainBL21 (DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentPROTEASE CORE DOMAINS I AND II (RESIDUES 17-346)
    GeneCALPAIN II
    MutationYES
    Organism CommonNORWAY RAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116
    SynonymCALCIUM-ACTIVATED NEUTRAL PROTEINASE, CANP, M- TYPE, M-CALPAIN, MILLIMOLAR-CALPAIN

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 4)

Asymmetric Unit (1, 4)
No.NameCountTypeFull Name
1CA4Ligand/IonCALCIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:89 , GLY A:91 , ASP A:96 , GLU A:175 , HOH A:347 , HOH A:348BINDING SITE FOR RESIDUE CA A 1
2AC2SOFTWAREGLU A:292 , ASP A:299 , GLN A:319 , ASP A:321 , GLU A:323 , HOH A:349 , HOH A:444BINDING SITE FOR RESIDUE CA A 2
3AC3SOFTWAREILE B:89 , GLY B:91 , ASP B:96 , GLU B:175 , HOH B:413 , HOH B:414BINDING SITE FOR RESIDUE CA B 3
4AC4SOFTWAREGLU B:292 , ASP B:299 , GLN B:319 , ASP B:321 , GLU B:323 , HOH B:367BINDING SITE FOR RESIDUE CA B 4

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1MDW)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MDW)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MDW)

(-) PROSITE Motifs  (2, 4)

Asymmetric Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CALPAIN_CATPS50203 Cysteine proteinase, calpain-type, catalytic domain profile.CAN2_RAT45-344
 
  2A:45-344
B:45-344
2THIOL_PROTEASE_CYSPS00139 Eukaryotic thiol (cysteine) proteases cysteine active site.CAN2_RAT99-110
 
  2A:99-110
B:99-110
Biological Unit 1 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CALPAIN_CATPS50203 Cysteine proteinase, calpain-type, catalytic domain profile.CAN2_RAT45-344
 
  1A:45-344
-
2THIOL_PROTEASE_CYSPS00139 Eukaryotic thiol (cysteine) proteases cysteine active site.CAN2_RAT99-110
 
  1A:99-110
-
Biological Unit 2 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CALPAIN_CATPS50203 Cysteine proteinase, calpain-type, catalytic domain profile.CAN2_RAT45-344
 
  1-
B:45-344
2THIOL_PROTEASE_CYSPS00139 Eukaryotic thiol (cysteine) proteases cysteine active site.CAN2_RAT99-110
 
  1-
B:99-110

(-) Exons   (9, 18)

Asymmetric Unit (9, 18)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSRNOT000000453261ENSRNOE00000309023chr13:98524463-98523801663CAN2_RAT1-79792A:22-79
B:23-79
58
57
1.2ENSRNOT000000453262ENSRNOE00000302168chr13:98519114-9851904570CAN2_RAT80-103242A:80-103
B:80-103
24
24
1.3ENSRNOT000000453263ENSRNOE00000304443chr13:98499555-98499437119CAN2_RAT103-142402A:103-142
B:103-142
40
40
1.4ENSRNOT000000453264ENSRNOE00000339353chr13:98498897-98498764134CAN2_RAT143-187452A:143-187
B:143-187
45
45
1.5ENSRNOT000000453265ENSRNOE00000333421chr13:98497787-98497619169CAN2_RAT187-243572A:187-243 (gaps)
B:187-243 (gaps)
57
57
1.6ENSRNOT000000453266ENSRNOE00000031098chr13:98496708-9849662584CAN2_RAT244-271282A:244-271
B:244-271
28
28
1.7ENSRNOT000000453267ENSRNOE00000279872chr13:98495644-9849555986CAN2_RAT272-300292A:272-300
B:272-300
29
29
1.8ENSRNOT000000453268ENSRNOE00000320842chr13:98494333-9849425975CAN2_RAT300-325262A:300-325
B:300-325
26
26
1.9ENSRNOT000000453269ENSRNOE00000314027chr13:98493169-98493009161CAN2_RAT325-379552A:325-344
B:325-345
20
21
1.10ENSRNOT0000004532610ENSRNOE00000314940chr13:98491026-98490857170CAN2_RAT379-435570--
1.11ENSRNOT0000004532611ENSRNOE00000427163chr13:98489237-9848922612CAN2_RAT436-43940--
1.12ENSRNOT0000004532612ENSRNOE00000362195chr13:98488354-98488143212CAN2_RAT440-510710--
1.13ENSRNOT0000004532613ENSRNOE00000299140chr13:98486485-9848644937CAN2_RAT510-522130--
1.14ENSRNOT0000004532614ENSRNOE00000031182chr13:98485176-9848511166CAN2_RAT523-544220--
1.15ENSRNOT0000004532615ENSRNOE00000349861chr13:98483613-9848355658CAN2_RAT545-564200--
1.16ENSRNOT0000004532616ENSRNOE00000321932chr13:98480438-9848037465CAN2_RAT564-585220--
1.17ENSRNOT0000004532617ENSRNOE00000031210chr13:98479391-9847932369CAN2_RAT586-608230--
1.18ENSRNOT0000004532618ENSRNOE00000341239chr13:98478952-9847887479CAN2_RAT609-635270--
1.19ENSRNOT0000004532619ENSRNOE00000343555chr13:98476968-98476852117CAN2_RAT635-674400--
1.20ENSRNOT0000004532620ENSRNOE00000365776chr13:98476397-9847633959CAN2_RAT674-693200--
1.21ENSRNOT0000004532621ENSRNOE00000423005chr13:98474374-984733681007CAN2_RAT694-70070--

(-) Sequences/Alignments

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:319
 aligned with CAN2_RAT | Q07009 from UniProtKB/Swiss-Prot  Length:700

    Alignment length:323
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341   
             CAN2_RAT    22 ERAIKYLNQDYETLRNECLEAGALFQDPSFPALPSSLGFKELGPYSSKTRGIEWKRPTEICADPQFIIGGATRTDICQGALGDCWLLAAIASLTLNEEILARVVPLDQSFQENYAGIFHFQFWQYGEWVEVVVDDRLPTKDGELLFVHSAEGSEFWSALLEKAYAKINGCYEALSGGATTEGFEDFTGGIAEWYELRKPPPNLFKIIQKALEKGSLLGCSIDITSAADSEAVTYQKLVKGHAYSVTGAEEVESSGSLQKLIRIRNPWGQVEWTGKWNDNCPSWNTVDPEVRANLTERQEDGEFWMSFSDFLRHYSRLEICNLT 344
               SCOP domains d1mdwa_ A: Calpain large subunit, catalytic domain (domain II)                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...ee.hhhhhhhhhhhhhhhh..........hhhhhh.......hhhhh..eeehhhhhh..........hhhhh......hhhhhhhhhhhh.hhhhhhhhh............eeeeeeee..eeeeeeee..eeee..ee..........hhhhhhhhhhhhhh.hhhhhh.----..hhhhh..eeeeee......hhhhhhhhhhhh..eeeee....hhhhh.............eeeeeeeeeee..eeeeeeeee...............hhhhhhhhhhhhhhhh......eeeeehhhhhhhh.eeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -----------------------CALPAIN_CAT  PDB: A:45-344 UniProt: 45-344                                                                                                                                                                                                                                                                   PROSITE (1)
                PROSITE (2) -----------------------------------------------------------------------------THIOL_PROTEA------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (2)
           Transcript 1 (1) Exon 1.1  PDB: A:22-79 UniProt: 1-79 [INCOMPLETE]         Exon 1.2  PDB: A:80-103 ---------------------------------------Exon 1.4  PDB: A:143-187 UniProt: 143-187    --------------------------------------------------------Exon 1.6  PDB: A:244-271    Exon 1.7  PDB: A:272-300     ------------------------Exon 1.9             Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------------------Exon 1.3  PDB: A:103-142                --------------------------------------------Exon 1.5  PDB: A:187-243 (gaps) UniProt: 187-243         --------------------------------------------------------Exon 1.8  PDB: A:300-325  ------------------- Transcript 1 (2)
                 1mdw A  22 ERAIKYLNQDYETLRNECLEAGALFQDPSFPALPSSLGFKELGPYSSKTRGIEWKRPTEICADPQFIIGGATRTDICQGALGDSWLLAAIASLTLNEEILARVVPLDQSFQENYAGIFHFQFWQYGEWVEVVVDDRLPTKDGELLFVHSAEGSEFWSALLEKAYAKINGCYEALSG----EGFEDFTGGIAEWYELRKPPPNLFKIIQKALEKGSLLGCSIDITSAADSEAVTYQKLVKGHAYSVTGAEEVESSGSLQKLIRIRNPWGQVEWTGKWNDNCPSWNTVDPEVRANLTERQEDGEFWMSFSDFLRHYSRLEICNLT 344
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191     |   -|      211       221       231       241       251       261       271       281       291       301       311       321       331       341   
                                                                                                                                                                                                         197  202                                                                                                                                              

Chain B from PDB  Type:PROTEIN  Length:318
 aligned with CAN2_RAT | Q07009 from UniProtKB/Swiss-Prot  Length:700

    Alignment length:323
                                    32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342   
             CAN2_RAT    23 RAIKYLNQDYETLRNECLEAGALFQDPSFPALPSSLGFKELGPYSSKTRGIEWKRPTEICADPQFIIGGATRTDICQGALGDCWLLAAIASLTLNEEILARVVPLDQSFQENYAGIFHFQFWQYGEWVEVVVDDRLPTKDGELLFVHSAEGSEFWSALLEKAYAKINGCYEALSGGATTEGFEDFTGGIAEWYELRKPPPNLFKIIQKALEKGSLLGCSIDITSAADSEAVTYQKLVKGHAYSVTGAEEVESSGSLQKLIRIRNPWGQVEWTGKWNDNCPSWNTVDPEVRANLTERQEDGEFWMSFSDFLRHYSRLEICNLTP 345
               SCOP domains d1mdwb_ B: Calpain large subunit, catalytic domain (domain II)                                                                                                                                                                                                                                                                      SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ----------------------Peptidase_C2-1mdwB01 B:45-344                                                                                                                                                                                                                                                                               - Pfam domains (1)
           Pfam domains (2) ----------------------Peptidase_C2-1mdwB02 B:45-344                                                                                                                                                                                                                                                                               - Pfam domains (2)
         Sec.struct. author ..ee.hhhhhhhhhhhhhhhh..........hhhhhh.......hhhhh..eeehhhhhh..........hhhhh......hhhhhhhhhhhh.hhhhhhhhh............eeeeeeee..eeeeeeee..eeee..ee..........hhhhhhhhhhhhhhhhhhhhh-----..hhhhhh.eeeeee......hhhhhhhhhhhh..eeeee....hhhhh.............eeeeeeeeee....eeeeeeee...............hhhhhhhhhhhhhhhh......eeeeehhhhhhhh.eeeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----------------------CALPAIN_CAT  PDB: B:45-344 UniProt: 45-344                                                                                                                                                                                                                                                                  - PROSITE (1)
                PROSITE (2) ----------------------------------------------------------------------------THIOL_PROTEA------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
           Transcript 1 (1) Exon 1.1  PDB: B:23-79 UniProt: 1-79 [INCOMPLETE]        Exon 1.2  PDB: B:80-103 ---------------------------------------Exon 1.4  PDB: B:143-187 UniProt: 143-187    --------------------------------------------------------Exon 1.6  PDB: B:244-271    Exon 1.7  PDB: B:272-300     ------------------------Exon 1.9 [INCOMPLETE] Transcript 1 (1)
           Transcript 1 (2) --------------------------------------------------------------------------------Exon 1.3  PDB: B:103-142                --------------------------------------------Exon 1.5  PDB: B:187-243 (gaps) UniProt: 187-243         --------------------------------------------------------Exon 1.8  PDB: B:300-325  -------------------- Transcript 1 (2)
                 1mdw B  23 RAIKYLNQDYETLRNECLEAGALFQDPSFPALPSSLGFKELGPYSSKTRGIEWKRPTEICADPQFIIGGATRTDICQGALGDSWLLAAIASLTLNEEILARVVPLDQSFQENYAGIFHFQFWQYGEWVEVVVDDRLPTKDGELLFVHSAEGSEFWSALLEKAYAKINGCYEALS-----EGFEDFTGGIAEWYELRKPPPNLFKIIQKALEKGSLLGCSIDITSAADSEAVTYQKLVKGHAYSVTGAEEVESSGSLQKLIRIRNPWGQVEWTGKWNDNCPSWNTVDPEVRANLTERQEDGEFWMSFSDFLRHYSRLEICNLTP 345
                                    32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192   |   202       212       222       232       242       252       262       272       282       292       302       312       322       332       342   
                                                                                                                                                                                                       196   202                                                                                                                                               

   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 '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1MDW)

(-) Pfam Domains  (1, 2)

Asymmetric Unit

(-) Gene Ontology  (33, 33)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (CAN2_RAT | Q07009)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0004198    calcium-dependent cysteine-type endopeptidase activity    Catalysis of the hydrolysis of nonterminal peptide bonds in a polypeptide chain by a mechanism using a cysteine residue at the enzyme active center, and requiring the presence of calcium.
    GO:0008234    cysteine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008092    cytoskeletal protein binding    Interacting selectively and non-covalently with any protein component of any cytoskeleton (actin, microtubule, or intermediate filament cytoskeleton).
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    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:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
biological process
    GO:0001824    blastocyst development    The process whose specific outcome is the progression of the blastocyst over time, from its formation to the mature structure. The mammalian blastocyst is a hollow ball of cells containing two cell types, the inner cell mass and the trophectoderm.
    GO:0071230    cellular response to amino acid 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 an amino acid stimulus. An amino acid is a carboxylic acids containing one or more amino groups.
    GO:0007520    myoblast fusion    A process in which non-proliferating myoblasts fuse to existing fibers or to myotubes to form new fibers. A myoblast is a mononucleate cell type that, by fusion with other myoblasts, gives rise to the myotubes that eventually develop into skeletal muscle fibers.
    GO:0016540    protein autoprocessing    Processing which a protein carries out itself. This involves actions such as the autolytic removal of residues to generate the mature form of the protein.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0051603    proteolysis involved in cellular protein catabolic process    The hydrolysis of a peptide bond or bonds within a protein as part of the chemical reactions and pathways resulting in the breakdown of a protein by individual cells.
    GO:0051493    regulation of cytoskeleton organization    Any process that modulates the frequency, rate or extent of the formation, arrangement of constituent parts, or disassembly of cytoskeletal structures.
    GO:0001666    response to hypoxia    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 stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
cellular component
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0000785    chromatin    The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome.
    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:0030425    dendrite    A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    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:0005925    focal adhesion    Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
    GO:0005764    lysosome    A small lytic vacuole that has cell cycle-independent morphology and is found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0045121    membrane raft    Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
    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:0097038    perinuclear endoplasmic reticulum    The portion of endoplasmic reticulum, the intracellular network of tubules and cisternae, that occurs near the nucleus. The lumen of the perinuclear endoplasmic reticulum is contiguous with the nuclear envelope lumen (also called perinuclear space), the region between the inner and outer nuclear membranes.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0031143    pseudopodium    A temporary protrusion or retractile process of a cell, associated with flowing movements of the protoplasm, and serving for locomotion and feeding.

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  CAN2_RAT | Q07009
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

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        CAN2_RAT | Q070091df0 1qxp 1u5i 3bow 3df0

(-) Related Entries Specified in the PDB File

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1dfo CRYSTAL STRUCTURE OF RAT M-CALPAIN
1kfu CRYSTAL STRUCTURE OF HUMAN M-CALPAIN FORM II
1kfx CRYSTAL STRUCTURE OF CALCIUM-FREE HUMAN CALPAIN II HETERODIMER - CRYSTAL FORM II
1kxr CRYSTAL STRUCTURE OF CALCIUM-BOUND CALPAIN I REVEALS THE ACTIVATION MECHANISM OF CALPAINS