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Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF 4-SULFATASE (HUMAN)

Authors :   C. Bond, M. Guss

Date :   29 Jul 96 (Deposition) - 04 Feb 98 (Release) - 02 Dec 15 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.50

Chains :   Asym./Biol. Unit : A

Keywords :   Sulfatase, Glycosaminoglycan Degradation, Hydrolase, Glycoprotein, Lysosome (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. S. Bond, P. R. Clements, S. J. Ashby, C. A. Collyer, S. J. Harrop, J. J. Hopwood, J. M. Guss
Structure Of A Human Lysosomal Sulfatase.
Structure V. 5 277 1997
PubMed-ID: 9032078 | Reference-DOI: 10.1016/S0969-2126(97)00185-8

Molecule 1 - N-ACETYLGALACTOSAMINE-4-SULFATASE
	Cellular Location	:	LYSOSOME
	Chains	:	A
	EC Number	:	3.1.6.12
	Engineered	:	YES
	Expression System	:	CRICETULUS GRISEUS
	Expression System Cellular Location	:	SECRETED
	Expression System Cell Line	:	CHO452
	Expression System Common	:	CHINESE HAMSTER
	Expression System Organelle	:	LYSOSOME
	Expression System Taxid	:	10029
	Expression System Variant	:	K1
	Expression System Vector	:	PEF NEO
	Gene	:	G4S
	Organ	:	LIVER
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	ARYLSULFATASE B, ASB, 4-SULFATASE

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (4, 7)

No.	Name	Count	Type	Full Name
1	ALS	1	Mod. Amino Acid	(3S)-3-(SULFOOXY)-L-SERINE
2	CA	1	Ligand/Ion	CALCIUM ION
3	CL	1	Ligand/Ion	CHLORIDE ION
4	NAG	4	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Asymmetric Unit (8, 8)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASN A:213 , GLU A:275 , ALA A:276 , ASN A:279 , NAG A:601	BINDING SITE FOR RESIDUE NAG A 600
2	AC2	SOFTWARE	NAG A:600	BINDING SITE FOR RESIDUE NAG A 601
3	AC3	SOFTWARE	PRO A:397 , ASN A:426 , VAL A:429 , NAG A:603	BINDING SITE FOR RESIDUE NAG A 602
4	AC4	SOFTWARE	NAG A:602	BINDING SITE FOR RESIDUE NAG A 603
5	AC5	SOFTWARE	ASP A:53 , ASP A:54 , ALS A:91 , ASP A:300 , ASN A:301	BINDING SITE FOR RESIDUE CA A 604
6	AC6	SOFTWARE	PRO A:89 , ASN A:394 , HIS A:430	BINDING SITE FOR RESIDUE CL A 605
7	MEB	UNKNOWN	ASP A:53 , ASP A:54 , ALS A:91 , ASP A:300 , ASN A:301	THIS IS THE METAL BINDING SITE. THE METAL WAS IDENTIFIED AS CALCIUM BY ITS PEAK HEIGHT IN DIFFERENCE ELECTRON DENSITY MAPS, BY SUCCESSIVE TEMPERATURE FACTOR REFINEMENT AND BY THE NATURE AND GEOMETRY OF THE COORDINATING LIGANDS.
8	SAL	UNKNOWN	ALS A:91 , HIS A:242 , LYS A:318 , LYS A:145 , ARG A:95 , HIS A:147	THESE RESIDUES AND THE METAL ION STABILIZE THE SULFATE ESTER RESIDUE 91. TOGETHER WITH THE METAL BINDING SITE THIS FORMS THE CENTER OF THE CATALYTIC ACTIVE SITE.

Asymmetric/Biological Unit

No.	Residues
1	A:117	-	A:521
2	A:121	-	A:155
3	A:181	-	A:192
4	A:405	-	A:447

Asymmetric/Biological Unit

No.	Residues
1	Ser A:240	-	Val A:241
2	Glu A:243	-	Pro A:244
3	Trp A:312	-	Pro A:313

Asymmetric/Biological Unit (32, 32)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
01	UniProt	VAR_019017	S	65	F	ARSB_HUMAN	Disease (MPS6)	---	A	S	65	F
02	UniProt	VAR_007294	T	92	M	ARSB_HUMAN	Disease (MPS6)	751010538	A	T	92	M
03	UniProt	VAR_007295	R	95	Q	ARSB_HUMAN	Disease (MPS6)	118203942	A	R	95	Q
04	UniProt	VAR_019019	P	116	H	ARSB_HUMAN	Disease (MPS6)	775780931	A	P	116	H
05	UniProt	VAR_007296	C	117	R	ARSB_HUMAN	Disease (MPS6)	118203939	A	C	117	R
06	UniProt	VAR_007297	G	137	V	ARSB_HUMAN	Disease (MPS6)	118203938	A	G	137	V
07	UniProt	VAR_019020	M	142	I	ARSB_HUMAN	Disease (MPS6)	---	A	M	142	I
08	UniProt	VAR_019021	G	144	R	ARSB_HUMAN	Disease (MPS6)	746206847	A	G	144	R
09	UniProt	VAR_019022	W	146	L	ARSB_HUMAN	Disease (MPS6)	---	A	W	146	L
10	UniProt	VAR_019023	W	146	R	ARSB_HUMAN	Disease (MPS6)	---	A	W	146	R
11	UniProt	VAR_019024	W	146	S	ARSB_HUMAN	Disease (MPS6)	---	A	W	146	S
12	UniProt	VAR_007298	R	152	W	ARSB_HUMAN	Disease (MPS6)	---	A	R	152	W
13	UniProt	VAR_007299	R	160	Q	ARSB_HUMAN	Disease (MPS6)	---	A	R	160	Q
14	UniProt	VAR_019025	C	192	R	ARSB_HUMAN	Disease (MPS6)	---	A	C	192	R
15	UniProt	VAR_007300	Y	210	C	ARSB_HUMAN	Disease (MPS6)	118203943	A	Y	210	C
16	UniProt	VAR_007301	L	236	P	ARSB_HUMAN	Disease (MPS6)	118203940	A	L	236	P
17	UniProt	VAR_019026	Q	239	R	ARSB_HUMAN	Disease (MPS6)	---	A	Q	239	R
18	UniProt	VAR_007302	G	302	R	ARSB_HUMAN	Disease (MPS6)	779378413	A	G	302	R
19	UniProt	VAR_019027	W	312	C	ARSB_HUMAN	Disease (MPS6)	---	A	W	312	C
20	UniProt	VAR_019028	R	315	Q	ARSB_HUMAN	Disease (MPS6)	727503809	A	R	315	Q
21	UniProt	VAR_019029	L	321	P	ARSB_HUMAN	Disease (MPS6)	---	A	L	321	P
22	UniProt	VAR_061883	V	358	L	ARSB_HUMAN	Polymorphism	1065757	A	V	358	L
23	UniProt	VAR_016061	V	358	M	ARSB_HUMAN	Polymorphism	1065757	A	V	358	M
24	UniProt	VAR_007303	V	376	M	ARSB_HUMAN	Polymorphism	17220759	A	V	376	M
25	UniProt	VAR_019030	S	384	N	ARSB_HUMAN	Disease (MPS6)	25414	A	S	384	N
26	UniProt	VAR_007304	H	393	P	ARSB_HUMAN	Disease (MPS6)	118203944	A	H	393	P
27	UniProt	VAR_019031	F	399	L	ARSB_HUMAN	Disease (MPS6)	200793396	A	F	399	L
28	UniProt	VAR_007305	C	405	Y	ARSB_HUMAN	Disease (MPS6)	118203941	A	C	405	Y
29	UniProt	VAR_019032	R	484	G	ARSB_HUMAN	Disease (MPS6)	201101343	A	R	484	G
30	UniProt	VAR_007306	L	498	P	ARSB_HUMAN	Disease (MPS6)	774358117	A	L	498	P
31	UniProt	VAR_019033	C	521	Y	ARSB_HUMAN	Disease (MPS6)	---	A	C	521	Y
32	UniProt	VAR_019034	P	531	R	ARSB_HUMAN	Disease (MPS6)	---	A	P	531	R

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

Asymmetric/Biological Unit (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SULFATASE_1	PS00523	Sulfatases signature 1.	ARSB_HUMAN	89-101	1	A:89-101
2	SULFATASE_2	PS00149	Sulfatases signature 2.	ARSB_HUMAN	137-147	1	A:137-147

Asymmetric/Biological Unit (8, 8)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.2b	ENST00000264914	2b	ENSE00001366770	chr5:78281608-78280760	849	ARSB_HUMAN	1-104	104	1	A:42-104	63
1.3	ENST00000264914	3	ENSE00001005074	chr5:78265015-78264829	187	ARSB_HUMAN	105-167	63	1	A:105-167	63
1.4	ENST00000264914	4	ENSE00001005073	chr5:78260429-78260239	191	ARSB_HUMAN	167-230	64	1	A:167-230	64
1.5	ENST00000264914	5	ENSE00001005072	chr5:78251325-78251118	208	ARSB_HUMAN	231-300	70	1	A:231-300	70
1.6b	ENST00000264914	6b	ENSE00001083459	chr5:78181650-78181407	244	ARSB_HUMAN	300-381	82	1	A:300-381	82
1.8	ENST00000264914	8	ENSE00001083461	chr5:78135249-78135179	71	ARSB_HUMAN	381-405	25	1	A:381-405	25
1.11	ENST00000264914	11	ENSE00001162061	chr5:78077797-78077675	123	ARSB_HUMAN	405-446	42	1	A:405-446 (gaps)	42
1.12c	ENST00000264914	12c	ENSE00001216478	chr5:78076485-78073032	3454	ARSB_HUMAN	446-533	88	1	A:446-533	88

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:475
 aligned with ARSB_HUMAN | P15848 from UniProtKB/Swiss-Prot  Length:533

    Alignment length:492
                                    51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531  
           ARSB_HUMAN    42 SRPPHLVFLLADDLGWNDVGFHGSRIRTPHLDALAAGGVLLDNYYTQPLCTPSRSQLLTGRYQIRTGLQHQIIWPCQPSCVPLDEKLLPQLLKEAGYTTHMVGKWHLGMYRKECLPTRRGFDTYFGYLLGSEDYYSHERCTLIDALNVTRCALDFRDGEEVATGYKNMYSTNIFTKRAIALITNHPPEKPLFLYLALQSVHEPLQVPEEYLKPYDFIQDKNRHHYAGMVSLMDEAVGNVTAALKSSGLWNNTVFIFSTDNGGQTLAGGNNWPLRGRKWSLWEGGVRGVGFVASPLLKQKGVKNRELIHISDWLPTLVKLARGHTNGTKPLDGFDVWKTISEGSPSPRIELLHNIDPNFVDSSPCPRNSMAPAKDDSSLPEYSAFNTSVHAAIRHGNWKLLTGYPGCGYWFPPPSQYNVSEIPSSDPPTKTLWLFDIDRDPEERHDLSREYPHIVTKLLSRLQFYHKHSVPVYFPAQDPRCDPKATGVWGPWM 533
               SCOP domains d1fsua_ A: Arylsulfatase B (4-sulfatase)                                                                                                                                                                                                                                                                                                                                                                                                                                                                     SCOP domains
               CATH domains 1fsuA01 A:42-388,A:510-533 Alkaline Phosphatase, subunit A                                                                                                                                                                                                                                                                                                 1fsuA02 A:389-509                   [code=3.30.1120.10, no name defined]                                                 1fsuA01                  CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ....eeeeeee........hhh......hhhhhhhh..eee..........hhhhhhhh...hhhh.....................hhhhhhh..eeeeeee........hhh.hhh....eee............eeeeeehhh.eeeeee................hhhhhhhhhhhhhh......eeeeeee...........hhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhh...hhheeeeeee.....hhh...............hhhh...eeee........eee.....hhhhhhhhhhh................hhhhhh.......eeeeeee.........-----------------.......eeeeee..eeeee.............................eeeee...............hhhhhhhhhhhhhhhhh..........hhh............ Sec.struct. author
             SAPs(SNPs) (1) -----------------------F--------------------------M--Q--------------------HR-------------------V----I-R-L-----W-------Q-------------------------------R-----------------C-------------------------P--R--------------------------------------------------------------R---------C--Q-----P------------------------------------L-----------------M-------N--------P-----L-----Y------------------------------------------------------------------------------G-------------P----------------------Y---------R-- SAPs(SNPs) (1)
             SAPs(SNPs) (2) --------------------------------------------------------------------------------------------------------R-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------M------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (2)
             SAPs(SNPs) (3) --------------------------------------------------------------------------------------------------------S--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (3)
                    PROSITE -----------------------------------------------SULFATASE_1  -----------------------------------SULFATASE_2-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2b  PDB: A:42-104 UniProt: 1-104 [INCOMPLETE]           Exon 1.3  PDB: A:105-167 UniProt: 105-167                      ---------------------------------------------------------------Exon 1.5  PDB: A:231-300 UniProt: 231-300                             --------------------------------------------------------------------------------------------------------Exon 1.11  PDB: A:405-446 (gaps)          --------------------------------------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) -----------------------------------------------------------------------------------------------------------------------------Exon 1.4  PDB: A:167-230 UniProt: 167-230                       ---------------------------------------------------------------------Exon 1.6b  PDB: A:300-381 UniProt: 300-381                                        ----------------------------------------------------------------Exon 1.12c  PDB: A:446-533 UniProt: 446-533                                              Transcript 1 (2)
           Transcript 1 (3) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.8  PDB: A:381-405 -------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (3)
                 1fsu A  42 SRPPHLVFLLADDLGWNDVGFHGSRIRTPHLDALAAGGVLLDNYYTQPLaTPSRSQLLTGRYQIRTGLQHQIIWPCQPSCVPLDEKLLPQLLKEAGYTTHMVGKWHLGMYRKECLPTRRGFDTYFGYLLGSEDYYSHERCTLIDALNVTRCALDFRDGEEVATGYKNMYSTNIFTKRAIALITNHPPEKPLFLYLALQSVHEPLQVPEEYLKPYDFIQDKNRHHYAGMVSLMDEAVGNVTAALKSSGLWNNTVFIFSTDNGGQTLAGGNNWPLRGRKWSLWEGGVRGVGFVASPLLKQKGVKNRELIHISDWLPTLVKLARGHTNGTKPLDGFDVWKTISEGSPSPRIELLHNIDPNFVDSSPC-----------------SAFNTSVHAAIRHGNWKLLTGYPGCGYWFPPPSQYNVSEIPSSDPPTKTLWLFDIDRDPEERHDLSREYPHIVTKLLSRLQFYHKHSVPVYFPAQDPRCDPKATGVWGPWM 533
                                    51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401   |     -         - |     431       441       451       461       471       481       491       501       511       521       531  
                                                                            91-ALS                                                                                                                                                                                                                                                                                                                   405               423

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/Biological Unit

Classes(

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Folds(

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Superfamilies( (-)

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Families(

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Protein Domains( (-)

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Organisms( (-)

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Class: Alpha and beta proteins (a/b) (23833)

Fold: Alkaline phosphatase-like (78)

Superfamily: Alkaline phosphatase-like (78)

Family: Arylsulfatase (10)

Protein domain: Arylsulfatase B (4-sulfatase) (2)

Human (Homo sapiens) [TaxId: 9606] (1)

d1fsua_

Asymmetric/Biological Unit

Classes(

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Architectures( (-)

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Topologies( (-)

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Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Arylsulfatase, C-terminal domain (26)

Homologous Superfamily: [code=3.30.1120.10, no name defined] (11)

Human (Homo sapiens) (9)

1fsuA02

A:389-509

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Alkaline Phosphatase, subunit A (66)

Homologous Superfamily: Alkaline Phosphatase, subunit A (66)

Human (Homo sapiens) (14)

1fsuA01

A:42-388,A:510-533

(no "Pfam Domain" information available for 1FSU)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (ARSB_HUMAN | P15848)

molecular function
	GO:0003943	N-acetylgalactosamine-4-sulfatase activity	Catalysis of the hydrolysis of the 4-sulfate groups of the N-acetyl-D-galactosamine 4-sulfate units of chondroitin sulfate and dermatan sulfate.
	GO:0004065	arylsulfatase activity	Catalysis of the reaction: a phenol sulfate + H2O = a phenol + sulfate.
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0008484	sulfuric ester hydrolase activity	Catalysis of the reaction: RSO-R' + H2O = RSOOH + R'H. This reaction is the hydrolysis of any sulfuric ester bond, any ester formed from sulfuric acid, O=SO(OH)2.
biological process
	GO:0006914	autophagy	The process in which cells digest parts of their own cytoplasm; allows for both recycling of macromolecular constituents under conditions of cellular stress and remodeling the intracellular structure for cell differentiation.
	GO:0007417	central nervous system development	The process whose specific outcome is the progression of the central nervous system over time, from its formation to the mature structure. The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain and spinal cord. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord.
	GO:0030207	chondroitin sulfate catabolic process	The chemical reactions and pathways resulting in the breakdown of chondroitin sulfate, any member of a group of 10-60 kDa glycosaminoglycans, widely distributed in cartilage and other mammalian connective tissues, the repeat units of which consist of beta-(1,4)-linked D-glucuronyl beta-(1,3)-N-acetyl-D-galactosamine sulfate.
	GO:0061580	colon epithelial cell migration	The orderly movement of a colonic epithelial cell from one site to another, often during the development of a multicellular organism.
	GO:0006687	glycosphingolipid metabolic process	The chemical reactions and pathways involving glycosphingolipids, any compound with residues of sphingoid and at least one monosaccharide.
	GO:0007041	lysosomal transport	The directed movement of substances into, out of or within a lysosome.
	GO:0007040	lysosome organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a lysosome. A lysosome is a cytoplasmic, membrane-bounded organelle that is found in most animal cells and that contains a variety of hydrolases.
	GO:0008152	metabolic process	The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
	GO:0010976	positive regulation of neuron projection development	Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
	GO:0043687	post-translational protein modification	The process of covalently altering one or more amino acids in a protein after the protein has been completely translated and released from the ribosome.
	GO:0010632	regulation of epithelial cell migration	Any process that modulates the frequency, rate or extent of epithelial cell migration.
	GO:0043627	response to estrogen	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 stimulus by an estrogen, C18 steroid hormones that can stimulate the development of female sexual characteristics.
	GO:0051597	response to methylmercury	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 methylmercury stimulus.
	GO:0007584	response to nutrient	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 nutrient stimulus.
	GO:0009268	response to pH	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 pH stimulus. pH is a measure of the acidity or basicity of an aqueous solution.
cellular component
	GO:0005794	Golgi apparatus	A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
	GO:0009986	cell surface	The external part of the cell wall and/or plasma membrane.
	GO:0005788	endoplasmic reticulum lumen	The volume enclosed by the membranes of the endoplasmic reticulum.
	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:0043202	lysosomal lumen	The volume enclosed within the lysosomal membrane.
	GO:0005764	lysosome	A small lytic vacuole that has cell cycle-independent morphology and is found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions.
	GO:0005739	mitochondrion	A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
	GO:0005791	rough endoplasmic reticulum	The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
		Glu A:243 - Pro A:244	[ RasMol ]
		Ser A:240 - Val A:241	[ RasMol ]
		Trp A:312 - Pro A:313	[ RasMol ]

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	1fsu
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		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
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	ARSB_HUMAN \| P15848
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	3.1.6.12
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

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	253200
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		Interatomic Contacts of Structural Units	:	CSU
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	ARSB_HUMAN \| P15848
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(no "Entries Sharing at Least One Protein Chain" available for 1FSU)

(no "Related Entries Specified in the PDB File" available for 1FSU)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 7)

Sites (8, 8)

SS Bonds (4, 4)

Cis Peptide Bonds (3, 3)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (32, 32)

PROSITE Motifs (2, 2)

Exons (8, 8)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (2, 2)

Pfam Domains (0, 0)

Gene Ontology (29, 29)

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Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File