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(-) Description

Title :  DETERMINATION OF THE SOLUTION STRUCTURE OF A SYNTHETIC TWO-SITE CALCIUM-BINDING HOMODIMERIC PROTEIN DOMAIN BY NMR SPECTROSCOPY
 
Authors :  G. S. Shaw, B. D. Sykes
Date :  12 Nov 92  (Deposition) - 31 Oct 93  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A,B  (7x)
Keywords :  Muscle Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. S. Shaw, R. S. Hodges, B. D. Sykes
Determination Of The Solution Structure Of A Synthetic Two-Site Calcium-Binding Homodimeric Protein Domain By Nmr Spectroscopy.
Biochemistry V. 31 9572 1992
PubMed-ID: 1390738  |  Reference-DOI: 10.1021/BI00155A009
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TROPONIN C SITE III - SITE III HOMODIMER
    Chains: A, B
    Engineered: YES

 Structural Features

(-) Chains, Units

  
NMR Structure (7x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 6)

NMR Structure (3, 6)
No.NameCountTypeFull Name
1ACE2Mod. Amino AcidACETYL GROUP
2CA2Ligand/IonCALCIUM ION
3NH22Mod. Amino AcidAMINO GROUP

(-) Sites  (2, 2)

NMR Structure (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:14 , LYS A:15 , ASN A:16 , ASP A:18 , TYR A:20 , GLU A:25BINDING SITE FOR RESIDUE CA A 69
2AC2SOFTWAREASP B:14 , ASN B:16 , ASP B:18 , TYR B:20 , GLU B:25BINDING SITE FOR RESIDUE CA B 70

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (4, 6)

NMR Structure
No.ModelResidues
11Ala B:32 -Thr B:33
22, 6, 7Glu A:5 -Leu A:6
37Glu B:5 -Leu B:6
47Asn B:8 -Ala B:9

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 4)

NMR Structure (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1EF_HAND_2PS50222 EF-hand calcium-binding domain profile.TNNC2_CHICK18-53
54-89
94-129
 
130-163		  2-
-
A:1-34
B:1-34
-
2EF_HAND_1PS00018 EF-hand calcium-binding domain.TNNC2_CHICK31-43
67-79
107-119
 
143-155		  2-
-
A:14-26
B:14-26
-

(-) Exons   (1, 2)

NMR Structure (1, 2)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSGALT000000110601ENSGALE00000073521Un_random:20732110-20732258149TNNC2_CHICK1-50500--
1.2ENSGALT000000110602ENSGALE00000073519Un_random:20732332-20732446115TNNC2_CHICK50-88390--
1.3ENSGALT000000110603ENSGALE00000073522Un_random:20732522-20732658137TNNC2_CHICK88-134472A:0-35
B:0-35		36
36
1.4ENSGALT000000110604ENSGALE00000073520Un_random:20732749-20732979231TNNC2_CHICK134-143100--

(-) Sequences/Alignments

NMR Structure
   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:36
 aligned with TNNC2_CHICK | P02588 from UniProtKB/Swiss-Prot  Length:163

    Alignment length:36
                                   102       112       122      
          TNNC2_CHICK    93 GKSEEELANCFRIFDKNADGFIDIEELGEILRATGE 128
               SCOP domains d1ctda_ A: Troponin C                SCOP domains
               CATH domains ------------------------------------ CATH domains
               Pfam domains ------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhh.........hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------ SAPs(SNPs)
                PROSITE (1) -EF_HAND_2  PDB: A:1-34              PROSITE (1)
                PROSITE (2) --------------EF_HAND_1    --------- PROSITE (2)
               Transcript 1 Exon 1.3  PDB: A:0-35 [INCOMPLETE]   Transcript 1
                 1ctd A   0 xKSEEELANAFRIFDKNADGYIDIEELGEILRATGx  35
                            |        9        19        29     |
                            |                                 35-NH2
                            0-ACE                               


Chain B from PDB  Type:PROTEIN  Length:36
 aligned with TNNC2_CHICK | P02588 from UniProtKB/Swiss-Prot  Length:163

    Alignment length:36
                                   102       112       122      
          TNNC2_CHICK    93 GKSEEELANCFRIFDKNADGFIDIEELGEILRATGE 128
               SCOP domains d1ctdb_ B: Troponin C                SCOP domains
               CATH domains ------------------------------------ CATH domains
               Pfam domains ------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhh.......hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------ SAPs(SNPs)
                PROSITE (1) -EF_HAND_2  PDB: B:1-34              PROSITE (1)
                PROSITE (2) --------------EF_HAND_1    --------- PROSITE (2)
               Transcript 1 Exon 1.3  PDB: B:0-35 [INCOMPLETE]   Transcript 1
                 1ctd B   0 xKSEEELANAFRIFDKNADGYIDIEELGEILRATGx  35
                            |        9        19        29     |
                            |                                 35-NH2
                            0-ACE
   Legend:   → Mismatch (orange background)
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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, 2)

NMR Structure
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1CTD)

(-) Gene Ontology  (5, 5)

NMR Structure(hide GO term definitions)
Chain A,B   (TNNC2_CHICK | P02588)
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:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0003009    skeletal muscle contraction    A process in which force is generated within skeletal muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. In the skeletal muscle, the muscle contraction takes advantage of an ordered sarcomeric structure and in most cases it is under voluntary control.
cellular component
    GO:0005861    troponin complex    A complex of accessory proteins (typically troponin T, troponin I and troponin C) found associated with actin in muscle thin filaments; involved in calcium regulation of muscle contraction.

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 Related Entries

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

UniProtKB/Swiss-Prot
        TNNC2_CHICK | P02588: 1avs 1blq 1cta 1ew7 1jc2 1ncx 1ncy 1ncz 1npq 1pon 1skt 1smg 1tnp 1tnq 1tnw 1tnx 1top 1ytz 1yv0 1zac 2w49 2w4u 4tnc

(-) Related Entries Specified in the PDB File

1cta