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(-) Description

Title :  CRYSTAL STRUCTURE OF CALCIUM-SATURATED RABBIT SKELETAL TROPONIN C
 
Authors :  J. Soman, G. N. Phillips Jr.
Date :  04 Mar 98  (Deposition) - 27 May 98  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A
Keywords :  Muscle Contraction, Calcium-Binding, Troponin, E-F Hand, Open Conformation Regulatory Domain, Calcium-Regulated Muscle Contraction (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Soman, T. Tao, G. N. Phillips Jr
Conformational Variation Of Calcium-Bound Troponin C.
Proteins V. 37 510 1999 (for further references see the PDB file header)

(-) Compounds

Molecule 1 - TROPONIN C
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Mutation: YES
    Organism Common: RABBIT
    Organism Scientific: ORYCTOLAGUS CUNICULUS
    Organism Taxid: 9986

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 5)

Asymmetric/Biological Unit (1, 5)
No.NameCountTypeFull Name
1CA5Ligand/IonCALCIUM ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:27 , ASP A:29 , ASP A:33 , GLU A:38 , HOH A:182 , HOH A:215BINDING SITE FOR RESIDUE CA A 160
2AC2SOFTWAREASP A:63 , ASP A:65 , SER A:67 , THR A:69 , GLU A:74 , HOH A:175BINDING SITE FOR RESIDUE CA A 161
3AC3SOFTWAREASP A:103 , ASN A:105 , ASP A:107 , TYR A:109 , GLU A:114BINDING SITE FOR RESIDUE CA A 162
4AC4SOFTWAREASP A:139 , ASN A:141 , ASP A:143 , ARG A:145 , GLU A:150 , HOH A:229BINDING SITE FOR RESIDUE CA A 163
5AC5SOFTWAREGLU A:14 , HOH A:176 , HOH A:219BINDING SITE FOR RESIDUE CA A 164

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 8)

Asymmetric/Biological Unit (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1EF_HAND_2PS50222 EF-hand calcium-binding domain profile.TNNC2_RABIT15-50
51-86
91-126
127-160		  4A:14-49
A:50-85
A:90-125
A:126-157
2EF_HAND_1PS00018 EF-hand calcium-binding domain.TNNC2_RABIT28-40
64-76
104-116
140-152		  4A:27-39
A:63-75
A:103-115
A:139-151

(-) Exons   (0, 0)

(no "Exon" information available for 1TCF)

(-) 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:156
 aligned with TNNC2_RABIT | P02586 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:156
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152      
          TNNC2_RABIT     3 DQQAEARSYLSEEMIAEFKAAFDMFDADGGGDISVKELGTVMRMLGQTPTKEELDAIIEEVDEDGSGTIDFEEFLVMMVRQMKEDAKGKSEEELAECFRIFDRNADGYIDAEELAEIFRASGEHVTDEEIESLMKDGDKNNDGRIDFDEFLKMMEG 158
               SCOP domains d1tcfa_ A: Troponin C                                                                                                                                        SCOP domains
               CATH domains 1tcfA00 A:2-157 EF-hand                                                                                                                                      CATH domains
           Pfam domains (1) ------------------------------------------------------------------------------------------EF_hand_5-1tcfA01 A:92-155                                      -- Pfam domains (1)
           Pfam domains (2) --------------------------------------------------------------------------------------------------------EF_hand_6-1tcfA02 A:106-157                          Pfam domains (2)
           Pfam domains (3) --------------------------------------------------------------------------------------------------------EF_hand_6-1tcfA03 A:106-157                          Pfam domains (3)
         Sec.struct. author ...hhhhhh..hhhhhhhhhhhhhh......ee.hhhhhhhhhh......hhhhhhhhhhh.......eehhhhhhhhhhhh.........hhhhhhhhhh.........hhhhhhhhhhh.....hhhhhhhhhhh.........hhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ------------EF_HAND_2  PDB: A:14-49             EF_HAND_2  PDB: A:50-85             ----EF_HAND_2  PDB: A:90-125            EF_HAND_2  PDB: A:126-157        PROSITE (1)
                PROSITE (2) -------------------------EF_HAND_1    -----------------------EF_HAND_1    ---------------------------EF_HAND_1    -----------------------EF_HAND_1    ------ PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1tcf A   2 DQQAEARSYLSEEMIAEFKAAFDMFDADGGGDISVKELGTVMRMLGQTPTKEELDAIIEEVDEDGSGTIDFEEFLVMMVRQMKEDAKGKSEEELAELFRIFDRNADGYIDAEELAEIFRASGEHVTDEEIESLMKDGDKNNDGRIDFDEFLKMMEG 157
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  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, 1)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (2, 3)

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

(-) Gene Ontology  (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (TNNC2_RABIT | P02586)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0031014    troponin T binding    Interacting selectively and non-covalently with troponin T, the tropomyosin-binding subunit of the troponin complex.

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 Related Entries

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UniProtKB/Swiss-Prot
        TNNC2_RABIT | P02586: 1a2x 1tn4 1tnc 2tn4

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