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(-) Description

Title :  STRUCTURE OF CHICKEN SKELETAL MUSCLE TROPONIN-C AT 1.78 ANGSTROMS RESOLUTION
 
Authors :  M. Sundaralingam
Date :  11 Aug 93  (Deposition) - 31 Jan 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.78
Chains :  Asym./Biol. Unit :  A
Keywords :  Contractile System Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  K. A. Satyshur, D. Pyzalska, M. Greaser, S. T. Rao, M. Sundaralingam
Structure Of Chicken Skeletal Muscle Troponin C At 1. 78 A Resolution.
Acta Crystallogr. , Sect. D V. 50 40 1994
PubMed-ID: 15299475  |  Reference-DOI: 10.1107/S090744499300798X
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TROPONIN C
    Chains: A
    Engineered: YES
    Organism Common: CHICKEN
    Organism Scientific: GALLUS GALLUS
    Organism Taxid: 9031

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric/Biological Unit (2, 3)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION
2SO41Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:106 , ASN A:108 , ASP A:110 , PHE A:112 , GLU A:117 , HOH A:176BINDING SITE FOR RESIDUE CA A 163
2AC2SOFTWAREASP A:142 , ASN A:144 , ASP A:146 , ARG A:148 , GLU A:153 , HOH A:209BINDING SITE FOR RESIDUE CA A 164
3AC3SOFTWAREGLY A:43 , ARG A:47 , LYS A:55 , HOH A:230 , HOH A:234 , HOH A:240 , HOH A:254 , HOH A:306BINDING SITE FOR RESIDUE SO4 A 225

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 8)

Asymmetric/Biological Unit (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1EF_HAND_2PS50222 EF-hand calcium-binding domain profile.TNNC2_CHICK18-53
54-89
94-129
130-163		  4A:17-52
A:53-88
A:93-128
A:129-162
2EF_HAND_1PS00018 EF-hand calcium-binding domain.TNNC2_CHICK31-43
67-79
107-119
143-155		  4A:30-42
A:66-78
A:106-118
A:142-154

(-) Exons   (4, 4)

Asymmetric/Biological Unit (4, 4)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSGALT000000110601ENSGALE00000073521Un_random:20732110-20732258149TNNC2_CHICK1-50501A:1-4949
1.2ENSGALT000000110602ENSGALE00000073519Un_random:20732332-20732446115TNNC2_CHICK50-88391A:49-8739
1.3ENSGALT000000110603ENSGALE00000073522Un_random:20732522-20732658137TNNC2_CHICK88-134471A:87-13347
1.4ENSGALT000000110604ENSGALE00000073520Un_random:20732749-20732979231TNNC2_CHICK134-143101A:133-14210

(-) 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:162
 aligned with TNNC2_CHICK | P02588 from UniProtKB/Swiss-Prot  Length:163

    Alignment length:162
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161  
          TNNC2_CHICK     2 ASMTDQQAEARAFLSEEMIAEFKAAFDMFDADGGGDISTKELGTVMRMLGQNPTKEELDAIIEEVDEDGSGTIDFEEFLVMMVRQMKEDAKGKSEEELANCFRIFDKNADGFIDIEELGEILRATGEHVTEEDIEDLMKDSDKNNDGRIDFDEFLKMMEGVQ 163
               SCOP domains d1topa_ A: Troponin C                                                                                                                                              SCOP domains
               CATH domains 1topA01 A:1-75 EF-hand                                                     1topA02 A:76-162 EF-hand                                                                CATH domains
           Pfam domains (1) -------------EF_hand_5-1topA01 A:14-82                                            --------------------------------------------------efhand-1topA03 A:133-161     - Pfam domains (1)
           Pfam domains (2) --------------------------------EF_hand_6-1topA02 A:33-85                            -----------------------------------------------efhand-1topA04 A:133-161     - Pfam domains (2)
     Sec.struct. author (1) ..hhhhhhhhhh...hhhhhhhhhhhh.......eeeee..hhhhhhh......hhhhhhhhhhh.....----hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......e.hhhhhhhhhh......hhhhhhhhhhh.......e.hhhhhhhhh... Sec.struct. author (1)
     Sec.struct. author (2) ----------------------------------------------------------------------eeeee--------------------------------------------------------------------------------------- Sec.struct. author (2)
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ----------------EF_HAND_2  PDB: A:17-52             EF_HAND_2  PDB: A:53-88             ----EF_HAND_2  PDB: A:93-128            EF_HAND_2  PDB: A:129-162          PROSITE (1)
                PROSITE (2) -----------------------------EF_HAND_1    -----------------------EF_HAND_1    ---------------------------EF_HAND_1    -----------------------EF_HAND_1    -------- PROSITE (2)
           Transcript 1 (1) Exon 1.1  PDB: A:1-49 UniProt: 1-50 [INCOMPLETE] -------------------------------------Exon 1.3  PDB: A:87-133 UniProt: 88-134        ----------------------------- Transcript 1 (1)
           Transcript 1 (2) ------------------------------------------------Exon 1.2  PDB: A:49-87 UniProt: 50-88  ---------------------------------------------Exon 1.4  -------------------- Transcript 1 (2)
                 1top A   1 ASMTDQQAEARAFLSEEMIAEFKAAFDMFDADGGGDISTKELGTVMRMLGQNPTKEELDAIIEEVDEDGSGTIDFEEFLVMMVRQMKEDAKGKSEEELANCFRIFDKNADGFIDIEELGEILRATGEHVTEEDIEDLMKDSDKNNDGRIDFDEFLKMMEGVQ 162
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160
   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, 1)

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

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (3, 4)

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

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (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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  TNNC2_CHICK | P02588
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 Related Entries

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

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

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