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(-) Description

Title :  CRYSTAL STRUCTURE OF THE CHICKEN ACTIN TRIMER COMPLEXED WITH HUMAN GELSOLIN SEGMENT 1 (GS-1)
 
Authors :  J. F. Dawson, E. P. Sablin, J. A. Spudich, R. J. Fletterick
Date :  07 Aug 02  (Deposition) - 07 Jan 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B,D,E
Biol. Unit 1:  A,B  (3x)
Biol. Unit 2:  D,E  (3x)
Keywords :  Gelsolin Precursor, A-Actin, Adenosine-5'-Triphosphate, 2- Amino-2-Hydroxymethyl-Propane-1, 3-Diol, Structural Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. F. Dawson, E. P. Sablin, J. A. Spudich, R. J. Fletterick
Structure Of An F-Actin Trimer Disrupted By Gelsolin And Implications For The Mechanism Of Severing
J. Biol. Chem. V. 278 1229 2003
PubMed-ID: 12356759  |  Reference-DOI: 10.1074/JBC.M209160200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - GELSOLIN PRECURSOR
    ChainsA, D
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentACTIN-SEVERING
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymACTIN-DEPOLYMERIZING FACTOR, ADF, BREVIN, AGEL
 
Molecule 2 - A-ACTIN
    ChainsB, E
    Organism CommonCHICKEN
    Organism ScientificGALLUS GALLUS
    Organism Taxid9031

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABDE
Biological Unit 1 (3x)AB  
Biological Unit 2 (3x)  DE

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 12)

Asymmetric Unit (4, 12)
No.NameCountTypeFull Name
1ATP2Ligand/IonADENOSINE-5'-TRIPHOSPHATE
2CA7Ligand/IonCALCIUM ION
3HIC2Mod. Amino Acid4-METHYL-HISTIDINE
4TRS1Ligand/Ion2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
Biological Unit 1 (3, 9)
No.NameCountTypeFull Name
1ATP3Ligand/IonADENOSINE-5'-TRIPHOSPHATE
2CA-1Ligand/IonCALCIUM ION
3HIC3Mod. Amino Acid4-METHYL-HISTIDINE
4TRS3Ligand/Ion2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
Biological Unit 2 (2, 6)
No.NameCountTypeFull Name
1ATP3Ligand/IonADENOSINE-5'-TRIPHOSPHATE
2CA-1Ligand/IonCALCIUM ION
3HIC3Mod. Amino Acid4-METHYL-HISTIDINE
4TRS-1Ligand/Ion2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL

(-) Sites  (10, 10)

Asymmetric Unit (10, 10)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREATP B:400 , HOH B:405 , HOH B:406 , HOH B:407 , HOH B:408 , HOH B:409BINDING SITE FOR RESIDUE CA B 401
02AC2SOFTWAREGLY A:41 , ASP A:42 , GLU A:73 , VAL A:121 , HOH A:513BINDING SITE FOR RESIDUE CA A 402
03AC3SOFTWAREASP A:85 , GLY A:90 , ALA A:92 , HOH A:486 , HOH A:505 , GLU B:169 , HOH B:413BINDING SITE FOR RESIDUE CA A 403
04AC4SOFTWARESER B:325 , HOH B:471 , HOH B:472 , HOH B:531 , HOH B:572 , GLU D:14BINDING SITE FOR RESIDUE CA B 404
05AC5SOFTWAREATP E:400 , HOH E:408 , HOH E:410 , HOH E:411 , HOH E:480BINDING SITE FOR RESIDUE CA E 401
06AC6SOFTWAREGLY D:41 , ASP D:42 , GLU D:73 , VAL D:121 , HOH D:418 , HOH D:455BINDING SITE FOR RESIDUE CA D 402
07AC7SOFTWAREASP D:85 , GLY D:90 , ALA D:92 , HOH D:425 , GLU E:169 , HOH E:403BINDING SITE FOR RESIDUE CA D 403
08AC8SOFTWAREGLY B:15 , SER B:16 , GLY B:17 , LEU B:18 , LYS B:20 , GLY B:158 , ASP B:159 , GLY B:160 , VAL B:161 , ARG B:212 , LYS B:215 , GLU B:216 , GLY B:303 , GLY B:304 , THR B:305 , MET B:307 , TYR B:308 , LYS B:338 , CA B:401 , HOH B:408 , HOH B:409 , HOH B:410 , HOH B:411 , HOH B:412 , HOH B:478 , HOH B:507 , HOH B:551BINDING SITE FOR RESIDUE ATP B 400
09AC9SOFTWAREGLY E:15 , SER E:16 , GLY E:17 , LEU E:18 , LYS E:20 , GLY E:158 , ASP E:159 , GLY E:160 , VAL E:161 , GLY E:184 , LYS E:215 , GLU E:216 , GLY E:303 , GLY E:304 , THR E:305 , MET E:307 , TYR E:308 , LYS E:338 , CA E:401 , HOH E:408 , HOH E:410 , HOH E:412 , HOH E:433 , HOH E:484BINDING SITE FOR RESIDUE ATP E 400
10BC1SOFTWARETYR A:35 , TYR A:109 , PHE A:110 , LYS A:111 , SER A:112 , ASN E:227 , HOH E:454BINDING SITE FOR RESIDUE TRS A 472

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 2)

Asymmetric Unit (1, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_024690A129TGELS_HUMANPolymorphism2230287A/DA78T

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (1, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_024690A129TGELS_HUMANPolymorphism2230287AA78T

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (1, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_024690A129TGELS_HUMANPolymorphism2230287DA78T

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (3, 6)

Asymmetric Unit (3, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ACTINS_1PS00406 Actins signature 1.ACTS_CHICK55-65
 
  2B:55-65
E:55-65
2ACTINS_ACT_LIKEPS01132 Actins and actin-related proteins signature.ACTS_CHICK106-118
 
  2B:106-118
E:106-118
3ACTINS_2PS00432 Actins signature 2.ACTS_CHICK358-366
 
  2B:358-366
E:358-366
Biological Unit 1 (3, 9)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ACTINS_1PS00406 Actins signature 1.ACTS_CHICK55-65
 
  3B:55-65
-
2ACTINS_ACT_LIKEPS01132 Actins and actin-related proteins signature.ACTS_CHICK106-118
 
  3B:106-118
-
3ACTINS_2PS00432 Actins signature 2.ACTS_CHICK358-366
 
  3B:358-366
-
Biological Unit 2 (3, 9)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ACTINS_1PS00406 Actins signature 1.ACTS_CHICK55-65
 
  3-
E:55-65
2ACTINS_ACT_LIKEPS01132 Actins and actin-related proteins signature.ACTS_CHICK106-118
 
  3-
E:106-118
3ACTINS_2PS00432 Actins signature 2.ACTS_CHICK358-366
 
  3-
E:358-366

(-) Exons   (3, 6)

Asymmetric Unit (3, 6)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.14ENST0000037381814ENSE00001461665chr9:124062071-124062283213GELS_HUMAN1-48480--
1.16dENST0000037381816dENSE00001725493chr9:124064241-124064445205GELS_HUMAN49-117692A:2-66
D:3-66
65
64
1.17ENST0000037381817ENSE00001745162chr9:124065189-124065343155GELS_HUMAN117-168522A:66-117
D:66-117
52
52
1.18bENST0000037381818bENSE00001764209chr9:124072962-124073123162GELS_HUMAN169-222542A:118-125
D:118-125
8
8
1.18fENST0000037381818fENSE00001689299chr9:124074617-124074766150GELS_HUMAN223-272500--
1.18iENST0000037381818iENSE00001727906chr9:124076212-12407630190GELS_HUMAN273-302300--
1.19bENST0000037381819bENSE00001732099chr9:124079364-124079496133GELS_HUMAN303-347450--
1.20ENST0000037381820ENSE00001734404chr9:124080684-12408077289GELS_HUMAN347-376300--
1.21aENST0000037381821aENSE00001618926chr9:124080943-124081158216GELS_HUMAN377-448720--
1.22bENST0000037381822bENSE00001591416chr9:124083546-124083679134GELS_HUMAN449-493450--
1.23ENST0000037381823ENSE00001735249chr9:124086832-12408692291GELS_HUMAN493-523310--
1.24aENST0000037381824aENSE00001704432chr9:124088790-124088960171GELS_HUMAN524-580570--
1.25ENST0000037381825ENSE00001668309chr9:124089586-124089760175GELS_HUMAN581-639590--
1.26bENST0000037381826bENSE00001721539chr9:124091169-124091293125GELS_HUMAN639-680420--
1.26cENST0000037381826cENSE00001771020chr9:124091516-12409159378GELS_HUMAN681-706260--
1.27aENST0000037381827aENSE00001779366chr9:124093666-12409372661GELS_HUMAN707-727210--
1.28dENST0000037381828dENSE00001732346chr9:124094712-124095120409GELS_HUMAN727-782560--

(-) 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:124
 aligned with GELS_HUMAN | P06396 from UniProtKB/Swiss-Prot  Length:782

    Alignment length:124
                                    62        72        82        92       102       112       122       132       142       152       162       172    
           GELS_HUMAN    53 VVEHPEFLKAGKEPGLQIWRVEKFDLVPVPTNLYGDFFTGDAYVILKTVQLRNGNLQYDLHYWLGNECSQDESGAAAIFTVQLDDYLNGRAVQHREVQGFESATFLGYFKSGLKYKKGGVASGF 176
               SCOP domains d1mdua_ A: Gelsolin                                                                                                          SCOP domains
               CATH domains 1mduA00 A:2-125 Severin                                                                                                      CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhh.....eeeeeeee..eeee.hhhhh.eee...eeeeeeeee.....eeeeeeeee....hhhhhhhhhhhhhhhhhhh....eeeeee....hhhhhhh.....eee........ Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------T----------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.16d  PDB: A:2-66 UniProt: 49-117 [INCOMPLETE]             ---------------------------------------------------1.18b    Transcript 1 (1)
           Transcript 1 (2) ----------------------------------------------------------------Exon 1.17  PDB: A:66-117 UniProt: 117-168           -------- Transcript 1 (2)
                 1mdu A   2 VVEHPEFLKAGKEPGLQIWRVEKFDLVPVPTNLYGDFFTGDAYVILKTVQLRNGNLQYDLHYWLGNECSQDESGAAAIFTVQLDDYLNGRAVQHREVQGFESATFLGYFKSGLKYKKGGVASGF 125
                                    11        21        31        41        51        61        71        81        91       101       111       121    

Chain B from PDB  Type:PROTEIN  Length:361
 aligned with ACTS_CHICK | P68139 from UniProtKB/Swiss-Prot  Length:377

    Alignment length:369
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366         
           ACTS_CHICK     7 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHRK 375
               SCOP domains d1mdub1 B:7-146 Actin                                                                                                                       d1mdub2 B:147-375 Actin                                                                                                                                                                                                               SCOP domains
               CATH domains -1mduB01                      1mduB        02 B:37-70           --1mduB01 B:8-36,B:73-136,B:339-373                               -1mduB03 B:138-183,B:273-334                   1mduB04 B:184-269 Actin; Chain A, domain 4                                            ---1mduB03 B:138-183,B:273-334                                   ----1mduB01 B:8-36,B:73-136,B:339-373  -- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee...eeeeee.......eeee..eeee.--------.....eehhhhhhh...eeee..ee..ee.hhhhhhhhhhhhhhh....hhhhh.eeeee....hhhhhhhhhhhhhhh....eeeeeehhhhhhhhh....eeeeee....eeeeeee..ee.hhhheee..hhhhhhhhhhhhhhhh........hhhhhhhhhhhhh....hhhhhhhhhhhh....eeee.....eeee.hhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh.eeeehhhhh..hhhhhhhhhhhhhh.......ee......hhhhhhhhhhhhhhhhhhhheehhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------ACTINS_1   ----------------------------------------ACTINS_ACT_LI-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ACTINS_2 --------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mdu B   7 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPR--------GQKDSYVGDEAQSKRGILTLKYPIEhGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHRK 375
                                    16        26        36    |    -   |    56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366         
                                                             41       50                       75-HIC                                                                                                                                                                                                                                                                                                        

Chain D from PDB  Type:PROTEIN  Length:123
 aligned with GELS_HUMAN | P06396 from UniProtKB/Swiss-Prot  Length:782

    Alignment length:123
                                    63        73        83        93       103       113       123       133       143       153       163       173   
           GELS_HUMAN    54 VEHPEFLKAGKEPGLQIWRVEKFDLVPVPTNLYGDFFTGDAYVILKTVQLRNGNLQYDLHYWLGNECSQDESGAAAIFTVQLDDYLNGRAVQHREVQGFESATFLGYFKSGLKYKKGGVASGF 176
               SCOP domains d1mdud_ D: Gelsolin                                                                                                         SCOP domains
               CATH domains 1mduD00 D:3-125 Severin                                                                                                     CATH domains
           Pfam domains (1) ---------------------Gelsolin-1mduD01 D:24-107                                                           ------------------ Pfam domains (1)
           Pfam domains (2) ---------------------Gelsolin-1mduD02 D:24-107                                                           ------------------ Pfam domains (2)
         Sec.struct. author ..hhhhhhh....eeeeeee....eee.hhhhh.eee...eeeeeeeee.....eeeeeeeee....hhhhhhhhhhhhhhhhhhh....eeeeee....hhhhhhh.....eee........ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------T----------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.16d  PDB: D:3-66 UniProt: 49-117 [INCOMPLETE]            ---------------------------------------------------1.18b    Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------Exon 1.17  PDB: D:66-117 UniProt: 117-168           -------- Transcript 1 (2)
                 1mdu D   3 VEHPEFLKAGKEPGLQIWRVEKFDLVPVPTNLYGDFFTGDAYVILKTVQLRNGNLQYDLHYWLGNECSQDESGAAAIFTVQLDDYLNGRAVQHREVQGFESATFLGYFKSGLKYKKGGVASGF 125
                                    12        22        32        42        52        62        72        82        92       102       112       122   

Chain E from PDB  Type:PROTEIN  Length:362
 aligned with ACTS_CHICK | P68139 from UniProtKB/Swiss-Prot  Length:377

    Alignment length:368
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366        
           ACTS_CHICK     7 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHR 374
               SCOP domains d1mdue1 E:7-146 Actin                                                                                                                       d1mdue2 E:147-374 Actin                                                                                                                                                                                                              SCOP domains
               CATH domains -1mduE01                      1mduE02       E:37-70             --1mduE01 E:8-36,E:73-136,E:339-372                               -1mduE03 E:138-183,E:273-334                   1mduE04 E:184-269 Actin; Chain A, domain 4                                            ---1mduE03 E:138-183,E:273-334                                   ----1mduE01 E:8-36,E:73-136,E:339-372 -- CATH domains
           Pfam domains (1) Actin-1mduE01 E:7-374                                                                                                                                                                                                                                                                                                                                                            Pfam domains (1)
           Pfam domains (2) Actin-1mduE02 E:7-374                                                                                                                                                                                                                                                                                                                                                            Pfam domains (2)
         Sec.struct. author ...eeeee...eeeeee.......eeee..eee.....------....eehhhhhh.....eee..ee..ee.hhhhhhhhhhhhhhh....hhhhh.eeeee....hhhhhhhhhhhhhhh....eeeeeehhhhhhhhh....eeeeee....eeeeeee..ee.hhhheee..hhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhh....hhhhhhhhhhhh....eeee.....eeee.hhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh.eeeehhhhh..hhhhhhhhhhhhhh.......ee......hhhhhhhhhhhhhhhhhhh.eehhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------ACTINS_1   ----------------------------------------ACTINS_ACT_LI-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ACTINS_2 -------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1mdu E   7 TTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQG------QKDSYVGDEAQSKRGILTLKYPIEhGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHR 374
                                    16        26        36       | -    |   56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366        
                                                                44     51                      75-HIC                                                                                                                                                                                                                                                                                                       

   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  (2, 6)

Asymmetric Unit

(-) CATH Domains  (4, 10)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (2, 4)

Asymmetric Unit
(-)
Clan: ADF (44)

(-) Gene Ontology  (73, 75)

Asymmetric Unit(hide GO term definitions)
Chain A,D   (GELS_HUMAN | P06396)
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.
    GO:0045159    myosin II binding    Interacting selectively and non-covalently with a class II myosin, any member of the class of 'conventional' double-headed myosins that includes muscle myosin.
    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:0019904    protein domain specific binding    Interacting selectively and non-covalently with a specific domain of a protein.
biological process
    GO:0051693    actin filament capping    The binding of a protein or protein complex to the end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
    GO:0030041    actin filament polymerization    Assembly of actin filaments by the addition of actin monomers to a filament.
    GO:0090527    actin filament reorganization    A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of actin filaments.
    GO:0051014    actin filament severing    The process in which an actin filament is broken down into smaller filaments.
    GO:0045010    actin nucleation    The initial step in the formation of an actin filament, in which actin monomers combine to form a new filament. Nucleation is slow relative to the subsequent addition of more monomers to extend the filament.
    GO:0008154    actin polymerization or depolymerization    Assembly or disassembly of actin filaments by the addition or removal of actin monomers from a filament.
    GO:0007568    aging    A developmental process that is a deterioration and loss of function over time. Aging includes loss of functions such as resistance to disease, homeostasis, and fertility, as well as wear and tear. Aging includes cellular senescence, but is more inclusive. May precede death and may succeed developmental maturation (GO:0021700).
    GO:1990000    amyloid fibril formation    The generation of amyloid fibrils, insoluble fibrous protein aggregates exhibiting beta sheet structure, from proteins. An example of this is seen when human RIP1 and RIP3 kinases form a heterodimeric functional amyloid signaling complex (PMID:22817896).
    GO:0006915    apoptotic process    A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
    GO:0051016    barbed-end actin filament capping    The binding of a protein or protein complex to the barbed (or plus) end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
    GO:0030030    cell projection organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a prolongation or process extending from a cell, e.g. a flagellum or axon.
    GO:0044267    cellular protein metabolic process    The chemical reactions and pathways involving a specific protein, rather than of proteins in general, occurring at the level of an individual cell. Includes cellular protein modification.
    GO:0071276    cellular response to cadmium ion    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 a cadmium (Cd) ion stimulus.
    GO:0060271    cilium assembly    The assembly of a cilium, a specialized eukaryotic organelle that consists of a filiform extrusion of the cell surface. Each cilium is bounded by an extrusion of the cytoplasmic membrane, and contains a regular longitudinal array of microtubules, anchored basally in a centriole.
    GO:0022617    extracellular matrix disassembly    A process that results in the breakdown of the extracellular matrix.
    GO:0097284    hepatocyte apoptotic process    Any apoptotic process in a hepatocyte, the main structural component of the liver.
    GO:0046597    negative regulation of viral entry into host cell    Any process that stops, prevents, or reduces the frequency, rate or extent of the entry of viral entry into a host cell.
    GO:0014003    oligodendrocyte development    The process aimed at the progression of an oligodendrocyte over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell. An oligodendrocyte is a type of glial cell involved in myelinating the axons in the central nervous system.
    GO:0006911    phagocytosis, engulfment    The internalization of bacteria, immune complexes and other particulate matter or of an apoptotic cell by phagocytosis, including the membrane and cytoskeletal processes required, which involves one of three mechanisms: zippering of pseudopods around a target via repeated receptor-ligand interactions, sinking of the target directly into plasma membrane of the phagocytosing cell, or induced uptake via an enhanced membrane ruffling of the phagocytosing cell similar to macropinocytosis.
    GO:0048015    phosphatidylinositol-mediated signaling    A series of molecular signals in which a cell uses a phosphatidylinositol-mediated signaling to convert a signal into a response. Phosphatidylinositols include phosphatidylinositol (PtdIns) and its phosphorylated derivatives.
    GO:0051127    positive regulation of actin nucleation    Any process that activates or increases the frequency, rate or extent of actin nucleation, the initial step in the formation of an actin filament in which actin monomers combine to form a new filament.
    GO:2001269    positive regulation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway    Any process that activates or increases the frequency, rate or extent of cysteine-type endopeptidase activity involved in apoptotic signaling pathway.
    GO:0010628    positive regulation of gene expression    Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:1902174    positive regulation of keratinocyte apoptotic process    Any process that activates or increases the frequency, rate or extent of keratinocyte apoptotic process.
    GO:1903923    positive regulation of protein processing in phagocytic vesicle    Any process that activates or increases the frequency, rate or extent of protein processing in phagocytic vesicle.
    GO:0031648    protein destabilization    Any process that decreases the stability of a protein, making it more vulnerable to degradative processes or aggregation.
    GO:0030155    regulation of cell adhesion    Any process that modulates the frequency, rate or extent of attachment of a cell to another cell or to the extracellular matrix.
    GO:1903903    regulation of establishment of T cell polarity    Any process that modulates the frequency, rate or extent of establishment of T cell polarity.
    GO:1903906    regulation of plasma membrane raft polarization    Any process that modulates the frequency, rate or extent of plasma membrane raft polarization.
    GO:0071801    regulation of podosome assembly    Any process that modulates the frequency, rate or extent of podosome assembly.
    GO:1903909    regulation of receptor clustering    Any process that modulates the frequency, rate or extent of receptor clustering.
    GO:1903689    regulation of wound healing, spreading of epidermal cells    Any process that modulates the frequency, rate or extent of wound healing, spreading of epidermal cells.
    GO:0097017    renal protein absorption    A renal system process in which proteins are taken up from the collecting ducts, glomerulus and proximal and distal loops of the nephron. In non-mammalian species, absorption may occur in related structures (e.g. protein absorption is observed in nephrocytes in Drosophila, see PMID:23264686).
    GO:0045471    response to ethanol    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 an ethanol stimulus.
    GO:0051593    response to folic acid    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 folic acid stimulus.
    GO:0042989    sequestering of actin monomers    The selective interaction of actin monomers with specific molecules that inhibit their polymerization by preventing their access to other monomers.
    GO:0014891    striated muscle atrophy    A process, occurring in striated muscle, that is characterized by a decrease in protein content, fiber diameter, force production and fatigue resistance in response to different conditions such as starvation, aging and disuse.
    GO:0042246    tissue regeneration    The regrowth of lost or destroyed tissues.
    GO:0016192    vesicle-mediated transport    A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
    GO:0042060    wound healing    The series of events that restore integrity to a damaged tissue, following an injury.
cellular component
    GO:0030478    actin cap    Polarized accumulation of cytoskeletal proteins (including F-actin) and regulatory proteins in a cell. An example of this is the actin cap found in Saccharomyces cerevisiae.
    GO:0015629    actin cytoskeleton    The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes.
    GO:0072562    blood microparticle    A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
    GO:0030864    cortical actin cytoskeleton    The portion of the actin cytoskeleton, comprising filamentous actin and associated proteins, that lies just beneath the plasma membrane.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005856    cytoskeleton    Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
    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: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:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    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:0030027    lamellipodium    A thin sheetlike process extended by the leading edge of a migrating cell or extending cell process; contains a dense meshwork of actin filaments.
    GO:0043209    myelin sheath    An electrically insulating fatty layer that surrounds the axons of many neurons. It is an outgrowth of glial cells: Schwann cells supply the myelin for peripheral neurons while oligodendrocytes supply it to those of the central nervous system.
    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:0048471    perinuclear region of cytoplasm    Cytoplasm situated near, or occurring around, the nucleus.
    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:0002102    podosome    An actin-rich adhesion structure characterized by formation upon cell substrate contact and localization at the substrate-attached part of the cell, contain an F-actin-rich core surrounded by a ring structure containing proteins such as vinculin and talin, and have a diameter of 0.5 mm.
    GO:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
    GO:0001726    ruffle    Projection at the leading edge of a crawling cell; the protrusions are supported by a microfilament meshwork.
    GO:0016528    sarcoplasm    The cytoplasm of a muscle cell; includes the sarcoplasmic reticulum.

Chain B,E   (ACTS_CHICK | P68139)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
biological process
    GO:0048741    skeletal muscle fiber development    The process whose specific outcome is the progression of the skeletal muscle fiber over time, from its formation to the mature structure. Muscle fibers are formed by the maturation of myotubes. They can be classed as slow, intermediate/fast or fast.
    GO:0030240    skeletal muscle thin filament assembly    The aggregation, arrangement and bonding together of proteins to form the actin-based thin filaments of myofibrils in skeletal muscle.
cellular component
    GO:0005884    actin filament    A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005856    cytoskeleton    Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
    GO:0001725    stress fiber    A contractile actin filament bundle that consists of short actin filaments with alternating polarity, cross-linked by alpha-actinin and possibly other actin bundling proteins, and with myosin present in a periodic distribution along the fiber.
    GO:0005865    striated muscle thin filament    Filaments formed of actin and associated proteins; attached to Z discs at either end of sarcomeres in myofibrils.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ACTS_CHICK | P681391alm 1atn 1h1v 1t44 1uy5
        GELS_HUMAN | P063961c0f 1c0g 1d4x 1dej 1eqy 1esv 1h1v 1kcq 1nlv 1nm1 1nmd 1p8x 1p8z 1sol 1t44 1yag 1yvn 2ff3 2ff6 2fh1 2fh2 2fh3 2fh4 3a5l 3a5m 3a5n 3a5o 3ci5 3cip 3cjb 3cjc 3ffk 3ffn 3tu5 4pkg 4pkh 4pki 4s10 4z94 5dd2 5fae 5faf

(-) Related Entries Specified in the PDB File

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