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(-) Description

Title :  18-K C-TERMINALLY TRUNUCATED SMALL SUBUNIT OF CALPAIN
 
Authors :  E. K. Leinala, J. S. Arthur, P. Grochulski, P. L. Davies, J. S. Elce, Z. Jia
Date :  17 Jan 03  (Deposition) - 18 Nov 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Dimer In Solution, Oligomer In Crystal, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. K. Leinala, J. S. Arthur, P. Grochulski, P. L. Davies, J. S. Elce, Z. Jia
A Second Binding Site Revealed By C-Terminal Truncation Of Calpain Small Subunit, A Penta-Ef-Hand Protein
Proteins: V. 53 649 2003 Struct. , Funct. , Genet.
PubMed-ID: 14579356  |  Reference-DOI: 10.1002/PROT.10453
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CALCIUM-DEPENDENT PROTEASE, SMALL SUBUNIT
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentRESIDUES 87-245
    GeneCAPNS1 OR CAPN4 OR CSS1
    Organism CommonNORWAY RAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116
    SynonymCALPAIN REGULATORY SUBUNIT, CALCIUM-ACTIVATED NEUTRAL PROTEINASE, CANP, FRAGMENT

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 13)

Asymmetric/Biological Unit (1, 13)
No.NameCountTypeFull Name
1CD13Ligand/IonCADMIUM ION

(-) Sites  (13, 13)

Asymmetric Unit (13, 13)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASP A:68 , ASP A:70 , THR A:72 , LYS A:74 , GLU A:79 , HOH A:778BINDING SITE FOR RESIDUE CD A 700
02AC2SOFTWAREASP A:100 , HOH A:769 , HOH A:771 , HOH A:774 , GLU B:615BINDING SITE FOR RESIDUE CD A 701
03AC3SOFTWAREASP A:98 , ASP A:100 , SER A:102 , THR A:104 , GLU A:109 , HOH A:720BINDING SITE FOR RESIDUE CD A 702
04AC4SOFTWAREALA A:25 , ASP A:28 , GLU A:30 , GLU A:35 , HOH A:726 , HOH A:772BINDING SITE FOR RESIDUE CD A 703
05AC5SOFTWAREASP A:53 , ASP A:141 , ASP A:143 , ASN A:144 , HOH A:729 , HOH A:773BINDING SITE FOR RESIDUE CD A 704
06AC6SOFTWAREASP A:27 , GLU A:115 , HOH A:768 , HOH A:776 , ASP B:600BINDING SITE FOR RESIDUE CD A 705
07AC7SOFTWAREHOH B:112 , ASP B:568 , ASP B:570 , THR B:572 , LYS B:574 , GLU B:579BINDING SITE FOR RESIDUE CD B 707
08AC8SOFTWAREHOH B:138 , ASP B:598 , ASP B:600 , SER B:602 , THR B:604 , GLU B:609BINDING SITE FOR RESIDUE CD B 708
09AC9SOFTWAREHOH B:142 , HOH B:186 , ALA B:525 , ASP B:528 , GLU B:530 , GLU B:535BINDING SITE FOR RESIDUE CD B 709
10BC1SOFTWAREHOH B:119 , ASP B:553 , ASP B:641 , ASP B:643 , ASN B:644BINDING SITE FOR RESIDUE CD B 710
11BC2SOFTWAREHIS A:47 , ASP A:49 , HOH A:777 , LYS B:519BINDING SITE FOR RESIDUE CD A 711
12BC3SOFTWAREHOH A:770 , HIS B:547 , ASP B:549 , LYS B:595BINDING SITE FOR RESIDUE CD B 712
13BC4SOFTWAREHOH B:148 , HOH B:198 , HIS B:624 , MET B:628BINDING SITE FOR RESIDUE CD B 713

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1NP8)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1NP8)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1NP8)

(-) PROSITE Motifs  (2, 10)

Asymmetric/Biological Unit (2, 10)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1EF_HAND_1PS00018 EF-hand calcium-binding domain.CPNS1_RAT154-166
 
184-196
 
  4A:68-80
B:568-580
A:98-110
B:598-610
2EF_HAND_2PS50222 EF-hand calcium-binding domain profile.CPNS1_RAT171-206
 
141-169
 
236-270
 
  6A:85-120
B:585-620
A:55-83
B:555-583
A:150-159
B:650-659

(-) Exons   (0, 0)

(no "Exon" information available for 1NP8)

(-) Sequences/Alignments

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 A from PDB  Type:PROTEIN  Length:149
 aligned with CPNS1_RAT | Q64537 from UniProtKB/Swiss-Prot  Length:270

    Alignment length:149
                                   106       116       126       136       146       156       166       176       186       196       206       216       226       236         
            CPNS1_RAT    97 SEEERQFRKLFVQLAGDDMEVSATELMNILNKVVTRHPDLKTDGFGIDTCRSMVAVMDSDTTGKLGFEEFKYLWNNIKKWQGIYKRFDTDRSGTIGSNELPGAFEAAGFHLNQHIYSMIIRRYSDETGNMDFDNFISCLVRLDAMFRAF 245
               SCOP domains d1np8a_ A: Calpain small (regulatory) subunit (domain VI)                                                                                             SCOP domains
               CATH domains 1np8A00 A:11-159 EF-hand                                                                                                                              CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh........hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhh....hhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------EF_HAND_1    -----------------EF_HAND_1    ---------------------------------------EF_HAND_2  PROSITE (1)
                PROSITE (2) --------------------------------------------EF_HAND_2  PDB: A:55-83      -EF_HAND_2  PDB: A:85-120            --------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1np8 A  11 SEEERQFRKLFVQLAGDDMEVSATELMNILNKVVTRHPDLKTDGFGIDTCRSMVAVMDSDTTGKLGFEEFKYLWNNIKKWQGIYKRFDTDRSGTIGSNELPGAFEAAGFHLNQHIYSMIIRRYSDETGNMDFDNFISCLVRLDAMFRAF 159
                                    20        30        40        50        60        70        80        90       100       110       120       130       140       150         

Chain B from PDB  Type:PROTEIN  Length:149
 aligned with CPNS1_RAT | Q64537 from UniProtKB/Swiss-Prot  Length:270

    Alignment length:149
                                   106       116       126       136       146       156       166       176       186       196       206       216       226       236         
            CPNS1_RAT    97 SEEERQFRKLFVQLAGDDMEVSATELMNILNKVVTRHPDLKTDGFGIDTCRSMVAVMDSDTTGKLGFEEFKYLWNNIKKWQGIYKRFDTDRSGTIGSNELPGAFEAAGFHLNQHIYSMIIRRYSDETGNMDFDNFISCLVRLDAMFRAF 245
               SCOP domains d1np8b_ B: Calpain small (regulatory) subunit (domain VI)                                                                                             SCOP domains
               CATH domains 1np8B00 B:511-659 EF-hand                                                                                                                             CATH domains
           Pfam domains (1) ----------------EF_hand_6-1np8B03 B:527-586                                 ---------------------------------------------------------------------EF_h Pfam domains (1)
           Pfam domains (2) ----------------EF_hand_6-1np8B04 B:527-586                                 ---------------------------------------------------------------------EF_h Pfam domains (2)
         Sec.struct. author .hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh........hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhh....hhhhhhhhhhhhh......hhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------EF_HAND_1    -----------------EF_HAND_1    ---------------------------------------EF_HAND_2  PROSITE (1)
                PROSITE (2) --------------------------------------------EF_HAND_2  PDB: B:555-583    -EF_HAND_2  PDB: B:585-620           --------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1np8 B 511 SEEERQFRKLFVQLAGDDMEVSATELMNILNKVVTRHPDLKTDGFGIDTCRSMVAVMDSDTTGKLGFEEFKYLWNNIKKWQGIYKRFDTDRSGTIGSNELPGAFEAAGFHLNQHIYSMIIRRYSDETGNMDFDNFISCLVRLDAMFRAF 659
                                   520       530       540       550       560       570       580       590       600       610       620       630       640       650         

   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/Biological Unit

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit

(-) Pfam Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Clan: EF_hand (270)

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (CPNS1_RAT | Q64537)
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:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CPNS1_RAT | Q645371aj5 1df0 1dvi 1u5i 3bow 3df0

(-) Related Entries Specified in the PDB File

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