PDB entry 3sqc

View 3sqc on RCSB PDB site
Description: squalene-hopene cyclase
Class: isomerase
Keywords: triterpene cyclase, monotopic membrane protein, qw-sequence repeat, cholesterol biosynthesis, isomerase
Deposited on 1998-09-04, released 1999-05-18
The last revision prior to the SCOPe 2.08 freeze date was dated 2009-02-24, with a file datestamp of 2009-02-03.
Experiment type: XRAY
Resolution: 2.8 Å
R-factor: 0.209
AEROSPACI score: 0.26 (click here for full SPACI score report)

Chains and heterogens:

  • Chain 'A':
    Compound: squalene--hopene cyclase
    Species: Alicyclobacillus acidocaldarius [TaxId:405212]
    Database cross-references and differences (RAF-indexed):
    • Uniprot P33247
      • engineered (375)
    Domains in SCOPe 2.08: d3sqca1, d3sqca2
  • Chain 'B':
    Compound: squalene--hopene cyclase
    Species: Alicyclobacillus acidocaldarius [TaxId:405212]
    Database cross-references and differences (RAF-indexed):
    • Uniprot P33247
      • engineered (375)
    Domains in SCOPe 2.08: d3sqcb1, d3sqcb2
  • Chain 'C':
    Compound: squalene--hopene cyclase
    Species: Alicyclobacillus acidocaldarius [TaxId:405212]
    Database cross-references and differences (RAF-indexed):
    • Uniprot P33247
      • engineered (375)
    Domains in SCOPe 2.08: d3sqcc1, d3sqcc2
  • Heterogens: HOH

PDB Chain Sequences:

  • Chain 'A':
    Sequence, based on SEQRES records: (download) 
    >3sqcA (A:)
maeqlveapayartldraveyllscqkdegywwgpllsnvtmeaeyvllchildrvdrdr
mekirryllheqredgtwalypggppdldttieayvalkyigmsrdeepmqkalrfiqsq
ggiessrvftrmwlalvgeypwekvpmvppeimflgkrmplniyefgswaratvvalsiv
msrqpvfplperarvpelyetdvpprrrgakggggwifdaldralhgyqklsvhpfrraa
eiraldwllerqagdgswggiqppwfyalialkildmtqhpafikgweglelygveldyg
gwmfqasispvwdtglavlalraaglpadhdrlvkagewlldrqitvpgdwavkrpnlkp
ggfafqfdnvyypdvcdtavvvwalntlrlpderrrrdamtkgfrwivgmqssnggwgay
dvdntsdlpnhipfcdfgevtdppsedvtahvlecfgsfgyddawkvirraveylkreqk
pdgswfgrwgvnylygtgavvsalkavgidtrepyiqkaldwveqhqnpdggwgedcrsy
edpayagkgastpsqtawalmaliaggraeseaarrgvqylvetqrpdggwdepyytgtg
fpgdfylgytmyrhvfptlalgrykqaierr

    Sequence, based on observed residues (ATOM records): (download) 
    >3sqcA (A:)
ayartldraveyllscqkdegywwgpllsnvtmeaeyvllchildrvdrdrmekirryll
heqredgtwalypggppdldttieayvalkyigmsrdeepmqkalrfiqsqggiessrvf
trmwlalvgeypwekvpmvppeimflgkrmplniyefgswaratvvalsivmsrqpvfpl
perarvpelyetdvpprrrgakggggwifdaldralhgyqklsvhpfrraaeiraldwll
erqagdgswggiqppwfyalialkildmtqhpafikgweglelygveldyggwmfqasis
pvwdtglavlalraaglpadhdrlvkagewlldrqitvpgdwavkrpnlkpggfafqfdn
vyypdvcdtavvvwalntlrlpderrrrdamtkgfrwivgmqssnggwgaydvdntsdlp
nhipfcdfgevtdppsedvtahvlecfgsfgyddawkvirraveylkreqkpdgswfgrw
gvnylygtgavvsalkavgidtrepyiqkaldwveqhqnpdggwgedcrsyedpayagkg
astpsqtawalmaliaggraeseaarrgvqylvetqrpdggwdepyytgtgfpgdfylgy
tmyrhvfptlalgrykqai

  • Chain 'B':
    Sequence, based on SEQRES records: (download) 
    >3sqcB (B:)
maeqlveapayartldraveyllscqkdegywwgpllsnvtmeaeyvllchildrvdrdr
mekirryllheqredgtwalypggppdldttieayvalkyigmsrdeepmqkalrfiqsq
ggiessrvftrmwlalvgeypwekvpmvppeimflgkrmplniyefgswaratvvalsiv
msrqpvfplperarvpelyetdvpprrrgakggggwifdaldralhgyqklsvhpfrraa
eiraldwllerqagdgswggiqppwfyalialkildmtqhpafikgweglelygveldyg
gwmfqasispvwdtglavlalraaglpadhdrlvkagewlldrqitvpgdwavkrpnlkp
ggfafqfdnvyypdvcdtavvvwalntlrlpderrrrdamtkgfrwivgmqssnggwgay
dvdntsdlpnhipfcdfgevtdppsedvtahvlecfgsfgyddawkvirraveylkreqk
pdgswfgrwgvnylygtgavvsalkavgidtrepyiqkaldwveqhqnpdggwgedcrsy
edpayagkgastpsqtawalmaliaggraeseaarrgvqylvetqrpdggwdepyytgtg
fpgdfylgytmyrhvfptlalgrykqaierr

    Sequence, based on observed residues (ATOM records): (download) 
    >3sqcB (B:)
ayartldraveyllscqkdegywwgpllsnvtmeaeyvllchildrvdrdrmekirryll
heqredgtwalypggppdldttieayvalkyigmsrdeepmqkalrfiqsqggiessrvf
trmwlalvgeypwekvpmvppeimflgkrmplniyefgswaratvvalsivmsrqpvfpl
perarvpelyetdvpprrrgakggggwifdaldralhgyqklsvhpfrraaeiraldwll
erqagdgswggiqppwfyalialkildmtqhpafikgweglelygveldyggwmfqasis
pvwdtglavlalraaglpadhdrlvkagewlldrqitvpgdwavkrpnlkpggfafqfdn
vyypdvcdtavvvwalntlrlpderrrrdamtkgfrwivgmqssnggwgaydvdntsdlp
nhipfcdfgevtdppsedvtahvlecfgsfgyddawkvirraveylkreqkpdgswfgrw
gvnylygtgavvsalkavgidtrepyiqkaldwveqhqnpdggwgedcrsyedpayagkg
astpsqtawalmaliaggraeseaarrgvqylvetqrpdggwdepyytgtgfpgdfylgy
tmyrhvfptlalgrykqai

  • Chain 'C':
    Sequence, based on SEQRES records: (download) 
    >3sqcC (C:)
maeqlveapayartldraveyllscqkdegywwgpllsnvtmeaeyvllchildrvdrdr
mekirryllheqredgtwalypggppdldttieayvalkyigmsrdeepmqkalrfiqsq
ggiessrvftrmwlalvgeypwekvpmvppeimflgkrmplniyefgswaratvvalsiv
msrqpvfplperarvpelyetdvpprrrgakggggwifdaldralhgyqklsvhpfrraa
eiraldwllerqagdgswggiqppwfyalialkildmtqhpafikgweglelygveldyg
gwmfqasispvwdtglavlalraaglpadhdrlvkagewlldrqitvpgdwavkrpnlkp
ggfafqfdnvyypdvcdtavvvwalntlrlpderrrrdamtkgfrwivgmqssnggwgay
dvdntsdlpnhipfcdfgevtdppsedvtahvlecfgsfgyddawkvirraveylkreqk
pdgswfgrwgvnylygtgavvsalkavgidtrepyiqkaldwveqhqnpdggwgedcrsy
edpayagkgastpsqtawalmaliaggraeseaarrgvqylvetqrpdggwdepyytgtg
fpgdfylgytmyrhvfptlalgrykqaierr

    Sequence, based on observed residues (ATOM records): (download) 
    >3sqcC (C:)
ayartldraveyllscqkdegywwgpllsnvtmeaeyvllchildrvdrdrmekirryll
heqredgtwalypggppdldttieayvalkyigmsrdeepmqkalrfiqsqggiessrvf
trmwlalvgeypwekvpmvppeimflgkrmplniyefgswaratvvalsivmsrqpvfpl
perarvpelyetdvpprrrgakggggwifdaldralhgyqklsvhpfrraaeiraldwll
erqagdgswggiqppwfyalialkildmtqhpafikgweglelygveldyggwmfqasis
pvwdtglavlalraaglpadhdrlvkagewlldrqitvpgdwavkrpnlkpggfafqfdn
vyypdvcdtavvvwalntlrlpderrrrdamtkgfrwivgmqssnggwgaydvdntsdlp
nhipfcdfgevtdppsedvtahvlecfgsfgyddawkvirraveylkreqkpdgswfgrw
gvnylygtgavvsalkavgidtrepyiqkaldwveqhqnpdggwgedcrsyedpayagkg
astpsqtawalmaliaggraeseaarrgvqylvetqrpdggwdepyytgtgfpgdfylgy
tmyrhvfptlalgrykqai