2SQC - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   SQUALENE-HOPENE CYCLASE FROM ALICYCLOBACILLUS ACIDOCALDARIUS

Authors :   K. U. Wendt, G. E. Schulz

Date :   02 Aug 98 (Deposition) - 27 Apr 99 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym. Unit : A,B
Biol. Unit 1: A  (1x)
Biol. Unit 2: B  (1x)

Keywords :   Isomerase, Triterpene Cyclase, Monotopic Membrane Protein, Qw-Sequence, Repeat, Cholesterol Biosynthesis (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)

Molecule 1 - SQUALENE-HOPENE CYCLASE
	Atcc	:	ATCC 27009
	Cellular Location	:	MEMBRANE
	Cell Line	:	JM105
	Chains	:	A, B
	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

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A
Biological Unit 2 (1x)	:		B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 6)

No.	Name	Count	Type	Full Name
1	C8E	6	Ligand/Ion	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	C8E	2	Ligand/Ion	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE

Biological Unit 2 (1, 4)

No.	Name	Count	Type	Full Name
1	C8E	4	Ligand/Ion	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	PRO A:263 , PHE A:365 , ASP A:374 , CYS A:376 , TYR A:420 , PHE A:437 , TRP A:489 , PHE A:601 , PHE A:605 , TYR A:609 , HOH A:822 , HOH A:828 , HOH A:1355	BINDING SITE FOR RESIDUE C8E A 632
2	AC2	SOFTWARE	ARG A:251 , PRO A:348 , GLY A:349 , TYR A:371 , ARG B:183 , ARG B:238 , GLU B:241 , MET B:277 , HOH B:1216 , HOH B:1232 , HOH B:1243	BINDING SITE FOR RESIDUE C8E B 632
3	AC3	SOFTWARE	PRO A:149 , GLU A:151 , PHE A:154	BINDING SITE FOR RESIDUE C8E A 633
4	AC4	SOFTWARE	PRO B:263 , PHE B:365 , ASP B:374 , CYS B:376 , ASP B:377 , TYR B:420 , PHE B:437 , PHE B:601 , PHE B:605 , TYR B:609 , HOH B:832 , HOH B:880 , HOH B:1241	BINDING SITE FOR RESIDUE C8E B 633
5	AC5	SOFTWARE	ARG A:183 , ARG A:238 , GLU A:241 , ILE A:242 , HOH A:1184 , ARG B:251 , PRO B:348 , GLY B:349 , TYR B:371 , HOH B:1214	BINDING SITE FOR RESIDUE C8E B 634
6	AC6	SOFTWARE	GLU B:151 , PHE B:154	BINDING SITE FOR RESIDUE C8E B 635

(no "SS Bond" information available for 2SQC)

Asymmetric Unit

No.	Residues
1	Val A:491	-	Asn A:492
2	Val B:491	-	Asn B:492

(no "SAP(SNP)/Variant" information available for 2SQC)

Asymmetric Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TERPENE_SYNTHASES	PS01074	Terpene synthases signature.	SQHC_ALIAD	482-496	2	A:482-496 B:482-496

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TERPENE_SYNTHASES	PS01074	Terpene synthases signature.	SQHC_ALIAD	482-496	1	A:482-496 -

Biological Unit 2 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TERPENE_SYNTHASES	PS01074	Terpene synthases signature.	SQHC_ALIAD	482-496	1	- B:482-496

(no "Exon" information available for 2SQC)

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:623
 aligned with SQHC_ALIAD | P33247 from UniProtKB/Swiss-Prot  Length:631

    Alignment length:623
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627   
           SQHC_ALIAD     8 APAYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVDDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAIER 630
               SCOP domains d2sqca1 A:8-36,A:308-630     d2sqca2 A:37-307 Squalene-hopene cyclase                                                                                                                                                                                                                                       d2sqca1 A:8-36,A:308-630 Squalene-hopene cyclase                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains --2sqcA01 A:10-35,A:308-628 2sqcA02 A:36-307  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                            2sqcA01 A:10-35,A:308-628  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                                                                    -- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhh...............hhhhhhhhhhhh.....hhhhhhhhhhhhhh................hhhhhhhhhhhhhh......hhhhhhhhhhhhh..hhh..hhhhhhhhhh....hhh.....hhhhh........hhh..hhhhhhhhhhhhhhhh.......hhh..hhhh................hhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh..........hhhhhhhhhhhhh......hhhhhhhhhhhhheee.....eee.....hhhhhhhhhhhhhhh......hhhhhhhhhhhhh......hhhh................hhh..hhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.................hhhh..............hhhhhhhhhhhhhh......hhhhhhhhhhhhh..............hhhhhhhhhhhhhh.......hhhhhhhhhhhhh..........hhhh..hhh.......hhhhhhhhhhhhh......hhhhhhhhhhhhh.............eeee...eee....hhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TERPENE_SYNTHAS-------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2sqc A   8 APAYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVCDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFSDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAIER 630
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627

Chain B from PDB  Type:PROTEIN  Length:623
 aligned with SQHC_ALIAD | P33247 from UniProtKB/Swiss-Prot  Length:631

    Alignment length:623
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627   
           SQHC_ALIAD     8 APAYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVDDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFCDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAIER 630
               SCOP domains d2sqcb1 B:8-36,B:308-630     d2sqcb2 B:37-307 Squalene-hopene cyclase                                                                                                                                                                                                                                       d2sqcb1 B:8-36,B:308-630 Squalene-hopene cyclase                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains --2sqcB01 B:10-35,B:308-628 2sqcB02 B:36-307  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                            2sqcB01 B:10-35,B:308-628  [code=1.50.10.20, no name defined]                                                                                                                                                                                                                                                                    -- CATH domains
           Pfam domains (1) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans_2-2sqcB07 B:245-419                                                                                                                                                ----------------------------------------------------------------------------------------------Prenyltrans-2sqcB01 B:514-565                       ----------------------------------------------------------------- Pfam domains (1)
           Pfam domains (2) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans_2-2sqcB08 B:245-419                                                                                                                                                ----------------------------------------------------------------------------------------------Prenyltrans-2sqcB02 B:514-565                       ----------------------------------------------------------------- Pfam domains (2)
           Pfam domains (3) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-2sqcB03 B:514-565                       ----------------------------------------------------------------- Pfam domains (3)
           Pfam domains (4) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-2sqcB04 B:514-565                       ----------------------------------------------------------------- Pfam domains (4)
           Pfam domains (5) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-2sqcB05 B:514-565                       ----------------------------------------------------------------- Pfam domains (5)
           Pfam domains (6) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Prenyltrans-2sqcB06 B:514-565                       ----------------------------------------------------------------- Pfam domains (6)
         Sec.struct. author ..hhhhhhhhhhhhhhhh...............hhhhhhhhhhhh.....hhhhhhhhhhhhhh................hhhhhhhhhhhhhh......hhhhhhhhhhhhh..hhh..hhhhhhhhhh....hhh.....hhhhh........hhh..hhhhhhhhhhhhhhhh.......hhh..hhhh................hhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh..........hhhhhhhhhhhhh......hhhhhhhhhhhhheee.....eee.....hhhhhhhhhhhhhhh......hhhhhhhhhhhhh......hhhh................hhh..hhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.................hhhh..............hhhhhhhhhhhhhh......hhhhhhhhhhhhh..............hhhhhhhhhhhhhh.......hhhhhhhhhhhhh..........hhhh..hhh.......hhhhhhhhhhhhh......hhhhhhhhhhhhh.............eeee...eee....hhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TERPENE_SYNTHAS-------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2sqc B   8 APAYARTLDRAVEYLLSCQKDEGYWWGPLLSNVTMEAEYVLLCHILDRVDRDRMEKIRRYLLHEQREDGTWALYPGGPPDLDTTIEAYVALKYIGMSRDEEPMQKALRFIQSQGGIESSRVFTRMWLALVGEYPWEKVPMVPPEIMFLGKRMPLNIYEFGSWARATVVALSIVMSRQPVFPLPERARVPELYETDVPPRRRGAKGGGGWIFDALDRALHGYQKLSVHPFRRAAEIRALDWLLERQAGDGSWGGIQPPWFYALIALKILDMTQHPAFIKGWEGLELYGVELDYGGWMFQASISPVWDTGLAVLALRAAGLPADHDRLVKAGEWLLDRQITVPGDWAVKRPNLKPGGFAFQFDNVYYPDVCDTAVVVWALNTLRLPDERRRRDAMTKGFRWIVGMQSSNGGWGAYDVDNTSDLPNHIPFSDFGEVTDPPSEDVTAHVLECFGSFGYDDAWKVIRRAVEYLKREQKPDGSWFGRWGVNYLYGTGAVVSALKAVGIDTREPYIQKALDWVEQHQNPDGGWGEDCRSYEDPAYAGKGASTPSQTAWALMALIAGGRAESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYRHVFPTLALGRYKQAIER 630
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607       617       627

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 '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: alpha/alpha toroid (324)

Superfamily: Terpenoid cyclases/Protein prenyltransferases (151)

Family: Terpene synthases (18)

Protein domain: Squalene-hopene cyclase (16)

Alicyclobacillus acidocaldarius [TaxId: 405212] (16)

1a	d2sqca1	A:8-36,A:308-630
1b	d2sqca2	A:37-307
1c	d2sqcb1	B:8-36,B:308-630
1d	d2sqcb2	B:37-307

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Alpha/alpha barrel (251)

Topology: Glycosyltransferase (233)

Homologous Superfamily: [code=1.50.10.20, no name defined] (105)

Alicyclobacillus acidocaldarius. Organism_taxid: 405212. Cell_line: jm105. (3)

1a	2sqcA01	A:10-35,A:308-628
1b	2sqcB01	B:10-35,B:308-628
1c	2sqcA02	A:36-307
1d	2sqcB02	B:36-307

Asymmetric Unit(hide GO term definitions)

Chain A,B (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.

Asymmetric Unit
	Complete Structure
		Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
		WebMol \| AstexViewer[tm]@PDBe (Java Applets, require no local installation except for Java; loading may be slow)
		STRAP (Java WebStart application, automatic local installation, requires Java; full application with system access!)
		RasMol (require local installation)
		Molscript (VRML) (requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)

	Ligands, Modified Residues, Ions
		C8E	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]

	Sites
		AC1	[ RasMol ]	+environment [ RasMol ]
		AC2	[ RasMol ]	+environment [ RasMol ]
		AC3	[ RasMol ]	+environment [ RasMol ]
		AC4	[ RasMol ]	+environment [ RasMol ]
		AC5	[ RasMol ]	+environment [ RasMol ]
		AC6	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Val A:491 - Asn A:492	[ RasMol ]
		Val B:491 - Asn B:492	[ RasMol ]

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
		Biological Unit 2	[ Jena3D ]

Jmol
	protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick [ Asym. Unit PNG format \| Asym. Unit - sites PNG format \| Biol. Unit 1 PNG format \| Biol. Unit 1 - sites PNG format \| Biol. Unit 2 PNG format ](automatic orientation, automatically generated)
Molscript
	protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick [ mono PDF format \| stereo PDF format ](default orientation, automatically generated)

Access by PDB/NDB ID
	2sqc
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	SQHC_ALIAD \| P33247
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	5.4.99.-
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	SQHC_ALIAD \| P33247
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

(no "Related Entries Specified in the PDB File" available for 2SQC)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 6)

Sites (6, 6)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 2)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 4)

CATH Domains (1, 4)

Pfam Domains (2, 8)

Gene Ontology (7, 7)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File