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(-) Description

Title :  SQUALENE-HOPENE CYCLASE
 
Authors :  K. U. Wendt, G. E. Schulz
Date :  04 Sep 98  (Deposition) - 18 May 99  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Biol. Unit 3:  C  (1x)
Keywords :  Triterpene Cyclase, Monotopic Membrane Protein, Qw-Sequence Repeat, Cholesterol Biosynthesis, Isomerase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  K. U. Wendt, A. Lenhart, G. E. Schulz
The Structure Of The Membrane Protein Squalene-Hopene Cyclase At 2. 0 A Resolution.
J. Mol. Biol. V. 286 175 1999
PubMed-ID: 9931258  |  Reference-DOI: 10.1006/JMBI.1998.2470
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SQUALENE--HOPENE CYCLASE
    Atcc: ATCC 27009
    Cellular Location: MEMBRANE
    Cell Line: JM105
    Chains: A, B, C
    Collection: ATCC 27009
    EC Number: 5.4.99.-
    Engineered: YES
    Expression System: ESCHERICHIA COLI K12
    Expression System Cellular Location: CYTOPLASMIC MEMBRANE
    Expression System Cell Line: JM105
    Expression System Plasmid: PKK223-3
    Expression System Strain: K12
    Expression System Taxid: 83333
    Mutation: YES
    Organism Scientific: ALICYCLOBACILLUS ACIDOCALDARIUS
    Organism Taxid: 405212
    Other Details: THERMOSTABLE, ACIDOPHILIC

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit : ABC
Biological Unit 1 (1x): A  
Biological Unit 2 (1x):  B 
Biological Unit 3 (1x):   C

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 3SQC)

(-) Sites  (0, 0)

(no "Site" information available for 3SQC)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3SQC)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3SQC)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3SQC)

(-) PROSITE Motifs  (1, 3)

Asymmetric Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1TERPENE_SYNTHASESPS01074 Terpene synthases signature.SQHC_ALIAD482-496
 
 		  3A:482-496
B:482-496
C:482-496
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1TERPENE_SYNTHASESPS01074 Terpene synthases signature.SQHC_ALIAD482-496
 
 		  1A:482-496
-
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1TERPENE_SYNTHASESPS01074 Terpene synthases signature.SQHC_ALIAD482-496
 
 		  1-
B:482-496
-
Biological Unit 3 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1TERPENE_SYNTHASESPS01074 Terpene synthases signature.SQHC_ALIAD482-496
 
 		  1-
-
C:482-496

(-) Exons   (0, 0)

(no "Exon" information available for 3SQC)

(-) 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:619
 aligned with SQHC_ALIAD | P33247 from UniProtKB/Swiss-Prot  Length:631

    Alignment length:619
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619         
           SQHC_ALIAD    10 AYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVDDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAI 628
               SCOP domains d3sqca1 A:10-36,A:308-628  d3sqca2 A:37-307 Squalene-hopene cyclase                                                                                                                                                                                                                                       d3sqca1 A:10-36,A:308-628 Squalene-hopene cyclase                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 3sqcA01 A:10-35,A:308-628 3sqcA02 A:36-307  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                            3sqcA01 A:10-35,A:308-628  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhh...............hhhhhhhhhhhh.....hhhhhhhhhhhhhh................hhhhhhhhhhhhhh......hhhhhhhhhhhhh.hhhh..hhhhhhhhh.....hhh.....hhhhh........hhh..hhhhhhhhhhhhhhhh.......hhh..hhh.................hhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh..........hhhhhhhhhhhhh......hhhhhhhhhhhh.eee.....eee.....hhhhhhhhhhhhhhh......hhhhhhhhhhhhh......hhhh.....................hhhhhhhhhhhh......hhhhhhhhhhhhhhhhhh.................hhhh..............hhhhhhhhhhhhhh......hhhhhhhhhhhhh.............hhhhhhhhhhhhhhh.......hhhhhhhhhhhhh..........hhhh............hhhhhhhhhhhhh......hhhhhhhhhhhhh.............eeee...eee....hhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TERPENE_SYNTHAS------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3sqc A  10 AYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVCDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAI 628
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619         


Chain B from PDB  Type:PROTEIN  Length:619
 aligned with SQHC_ALIAD | P33247 from UniProtKB/Swiss-Prot  Length:631

    Alignment length:619
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619         
           SQHC_ALIAD    10 AYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVDDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAI 628
               SCOP domains d3sqcb1 B:10-36,B:308-628  d3sqcb2 B:37-307 Squalene-hopene cyclase                                                                                                                                                                                                                                       d3sqcb1 B:10-36,B:308-628 Squalene-hopene cyclase                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 3sqcB01 B:10-35,B:308-628 3sqcB02 B:36-307  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                            3sqcB01 B:10-35,B:308-628  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhh...............hhhhhhhhhhhh.....hhhhhhhhhhhhhh................hhhhhhhhhhhhhh......hhhhhhhhhhhhh.hhhh..hhhhhhhhh.....hhh.....hhhhh........hhh..hhhhhhhhhhhhhhhh.......hhh..hhh.................hhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh..........hhhhhhhhhhhhh......hhhhhhhhhhhh.eee.....eee.....hhhhhhhhhhhhhhh......hhhhhhhhhhhhh......hhhh.....................hhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.................hhhh..............hhhhhhhhhhhhhh......hhhhhhhhhhhhh.............hhhhhhhhhhhhhhh.......hhhhhhhhhhhhh..........hhhh............hhhhhhhhhhhhh......hhhhhhhhhhhhh.............eeee...eee....hhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TERPENE_SYNTHAS------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3sqc B  10 AYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVCDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAI 628
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619         


Chain C from PDB  Type:PROTEIN  Length:619
 aligned with SQHC_ALIAD | P33247 from UniProtKB/Swiss-Prot  Length:631

    Alignment length:619
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619         
           SQHC_ALIAD    10 AYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVDDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAI 628
               SCOP domains d3sqcc1 C:10-36,C:308-628  d3sqcc2 C:37-307 Squalene-hopene cyclase                                                                                                                                                                                                                                       d3sqcc1 C:10-36,C:308-628 Squalene-hopene cyclase                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 3sqcC01 C:10-35,C:308-628 3sqcC02 C:36-307  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                            3sqcC01 C:10-35,C:308-628  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                                                                     CATH domains
           Pfam domains (1) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans_2-3sqcC10 C:245-419                                                                                                                                                ----------------------------------------------------------------------------------------------Prenyltrans-3sqcC01 C:514-565                       --------------------------------------------------------------- Pfam domains (1)
           Pfam domains (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans_2-3sqcC11 C:245-419                                                                                                                                                ----------------------------------------------------------------------------------------------Prenyltrans-3sqcC02 C:514-565                       --------------------------------------------------------------- Pfam domains (2)
           Pfam domains (3) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans_2-3sqcC12 C:245-419                                                                                                                                                ----------------------------------------------------------------------------------------------Prenyltrans-3sqcC03 C:514-565                       --------------------------------------------------------------- Pfam domains (3)
           Pfam domains (4) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-3sqcC04 C:514-565                       --------------------------------------------------------------- Pfam domains (4)
           Pfam domains (5) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-3sqcC05 C:514-565                       --------------------------------------------------------------- Pfam domains (5)
           Pfam domains (6) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-3sqcC06 C:514-565                       --------------------------------------------------------------- Pfam domains (6)
           Pfam domains (7) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-3sqcC07 C:514-565                       --------------------------------------------------------------- Pfam domains (7)
           Pfam domains (8) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-3sqcC08 C:514-565                       --------------------------------------------------------------- Pfam domains (8)
           Pfam domains (9) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-3sqcC09 C:514-565                       --------------------------------------------------------------- Pfam domains (9)
         Sec.struct. author .hhhhhhhhhhhhhhh...............hhhhhhhhhhhh.....hhhhhhhhhhhhhh................hhhhhhhhhhhhhh......hhhhhhhhhhhhh.hhhh..hhhhhhhhh.....hhh.....hhhhh........hhh..hhhhhhhhhhhhhhhh.......hhh..hhh.................hhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh..........hhhhhhhhhhhhh......hhhhhhhhhhhh.eee.....eee.....hhhhhhhhhhhhhhh......hhhhhhhhhhhhh......hhhh.....................hhhhhhhhhhhh......hhhhhhhhhhhhhhhhhh.................hhhh..............hhhhhhhhhhhhhh......hhhhhhhhhhhhh.............hhhhhhhhhhhhhhh.......hhhhhhhhhhhhh..........hhhh..hhh.......hhhhhhhhhhhhh......hhhhhhhhhhhhh.............eeee...eee....hhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TERPENE_SYNTHAS------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3sqc C  10 AYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVCDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAI 628
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619
   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, 6)

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

(-) CATH Domains  (1, 6)

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

(-) Pfam Domains  (2, 12)

Asymmetric Unit
(-)
Clan: 6_Hairpin (120)

(-) Gene Ontology  (7, 7)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C   (SQHC_ALIAD | P33247)
molecular function
    GO:0016866    intramolecular transferase activity    Catalysis of the transfer of a functional group from one position to another within a single molecule.
    GO:0016853    isomerase activity    Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
    GO:0051007    squalene-hopene cyclase activity    Catalysis of the reaction: squalene = hop-22(29)-ene.
biological process
    GO:0019746    hopanoid biosynthetic process    The chemical reactions and pathways resulting in the formation of hopanoids, pentacyclic sterol-like compounds based on the hopane nucleus.
cellular component
    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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(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        SQHC_ALIAD | P33247: 1gsz 1h35 1h36 1h37 1h39 1h3a 1h3b 1h3c 1o6h 1o6q 1o6r 1o79 1sqc 1ump 2sqc

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 3SQC)