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Asym./Biol. Unit (Jmol Viewer)

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

Title :   STRUCTURE OF THE ECTODOMAIN OF LGR5 IN COMPLEX WITH R-SPONDIN-1 (FU1FU2) IN P22121 CRYSTAL FORM

Authors :   W. C. Peng, W. De Lau, F. Forneris, J. C. M. Granneman, M. Huch, H. Clever

Date :   11 Jun 13 (Deposition) - 19 Jun 13 (Release) - 24 Jul 13 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   3.20

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   Signaling Protein, Adult Stem Cell, Leucine-Rich Repeat G-Protein Coupled Receptor, Leucine-Rich Repeat, Furin Domain, Wnt Signaling, Congenital Anonychia (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   W. C. Peng, W. De Lau, F. Forneris, J. C. M. Granneman, M. Huch, H. Clevers, P. Gros
Structure Of Stem Cell Growth Factor R-Spondin 1 In Complex With The Ectodomain Of Its Receptor Lgr5.
Cell Rep. V. 3 1885 2013
PubMed-ID: 23809763 | Reference-DOI: 10.1016/J.CELREP.2013.06.009

Molecule 1 - LEUCINE-RICH REPEAT-CONTAINING G-PROTEIN COUPLED RECEPTOR 5
	Chains	:	A, B
	Engineered	:	YES
	Expression System	:	HOMO SAPIENS
	Expression System Cell Line	:	HEK293
	Expression System Common	:	HUMAN
	Expression System Taxid	:	9606
	Fragment	:	EXTRACELLULAR LRR DOMAIN, RESIDUES 22-543
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Other Details	:	N-LINKED GLYCOSYLATIONS AT ASN 63,77,208,500
	Synonym	:	G-PROTEIN COUPLED RECEPTOR 49, G-PROTEIN COUPLED RECEPTOR 67, G-PROTEIN COUPLED RECEPTOR HG38

Molecule 2 - R-SPONDIN-1
	Chains	:	C, D
	Engineered	:	YES
	Expression System	:	HOMO SAPIENS
	Expression System Cell Line	:	HEK293
	Expression System Common	:	HUMAN
	Expression System Taxid	:	9606
	Fragment	:	FU1FU2, RESIDUES 31-146
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	ROOF PLATE-SPECIFIC SPONDIN-1, HRSPO1

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 10)

No.	Name	Count	Type	Full Name
1	BMA	1	Ligand/Ion	BETA-D-MANNOSE
2	NAG	9	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	SER A:62 , ASN A:63	BINDING SITE FOR MONO-SACCHARIDE NAG A1063 BOUND TO ASN A 63
2	AC2	SOFTWARE	ASN A:77 , SER A:79	BINDING SITE FOR POLY-SACCHARIDE RESIDUES NAG A1077 THROUGH BMA A1079 BOUND TO ASN A 77
3	AC3	SOFTWARE	ARG A:183 , SER A:186 , ASN A:208	BINDING SITE FOR POLY-SACCHARIDE RESIDUES NAG A1208 THROUGH NAG A1209 BOUND TO ASN A 208
4	AC4	SOFTWARE	ASN B:77 , SER B:79	BINDING SITE FOR POLY-SACCHARIDE RESIDUES NAG B1077 THROUGH NAG B1078 BOUND TO ASN B 77
5	AC5	SOFTWARE	ARG B:183 , SER B:186 , ASN B:208	BINDING SITE FOR POLY-SACCHARIDE RESIDUES NAG B1208 THROUGH NAG B1209 BOUND TO ASN B 208

Asymmetric/Biological Unit

No.	Residues
1	A:34	-	A:40
2	A:38	-	A:52
3	A:348	-	A:373
4	A:479	-	A:541
5	B:34	-	B:40
6	B:38	-	B:52
7	B:348	-	B:373
8	B:479	-	B:541
9	C:40	-	C:47
10	C:44	-	C:53
11	C:56	-	C:75
12	C:79	-	C:94
13	C:97	-	C:105
14	C:102	-	C:111
15	C:114	-	C:125
16	C:129	-	C:142
17	D:40	-	D:47
18	D:44	-	D:53
19	D:56	-	D:75
20	D:79	-	D:94
21	D:97	-	D:105
22	D:102	-	D:111
23	D:114	-	D:125
24	D:129	-	D:142

Asymmetric/Biological Unit

No.	Residues
1	Ala C:135	-	Ala C:136
2	Glu D:65	-	Arg D:66
3	Ser D:133	-	Ser D:134

Asymmetric/Biological Unit (1, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_049411	H	383	R	LGR5_HUMAN	Polymorphism	12303775	A/B	H	383	R

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

Asymmetric/Biological Unit (1, 30)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	LRR	PS51450	Leucine-rich repeat profile.	LGR5_HUMAN	67-90 91-112 115-136 139-160 163-184 187-208 211-232 235-256 258-279 306-328 329-350 353-374 375-396 399-420 423-446	30	A:67-90 B:67-90 A:91-112 B:91-112 A:115-136 B:115-136 A:139-160 B:139-160 A:163-184 B:163-184 A:187-208 B:187-208 A:211-232 B:211-232 A:235-256 B:235-256 A:258-279 B:258-279 A:306-328 B:306-328 A:329-350 B:329-350 A:353-374 B:353-374 A:375-396 B:375-396 A:399-420 B:399-420 A:423-446 B:423-446

(no "Exon" information available for 4BSR)

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:483
 aligned with LGR5_HUMAN | O75473 from UniProtKB/Swiss-Prot  Length:907

    Alignment length:516
                                    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      
           LGR5_HUMAN    28 GVLLRGCPTHCHCEPDGRMLLRVDCSDLGLSELPSNLSVFTSYLDLSMNNISQLLPNPLPSLRFLEELRLAGNALTYIPKGAFTGLYSLKVLMLQNNQLRHVPTEALQNLRSLQSLRLDANHISYVPPSCFSGLHSLRHLWLDDNALTEIPVQAFRSLSALQAMTLALNKIHHIPDYAFGNLSSLVVLHLHNNRIHSLGKKCFDGLHSLETLDLNYNNLDEFPTAIRTLSNLKELGFHSNNIRSIPEKAFVGNPSLITIHFYDNPIQFVGRSAFQHLPELRTLTLNGASQITEFPDLTGTANLESLTLTGAQISSLPQTVCNQLPNLQVLDLSYNLLEDLPSFSVCQKLQKIDLRHNEIYEIKVDTFQQLLSLRSLNLAWNKIAIIHPNAFSTLPSLIKLDLSSNLLSSFPITGLHGLTHLKLTGNHALQSLISSENFPELKVIEMPYAYQCCAFGVCENAYKISNQWNKGDNSSMDDLHKKDAGMFQAQDERDLEDFLLDFEEDLKALHSVQCSP 543
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...........eeee.....eeee................eeeee.....................eee.....................eee.....................eee.....................eee.........hhhhhh......eee.......ee............eee.......ee............eee.........hhhhhhh....eee.......ee............eee.......ee.hhhhh......eeeee..................eeeee..........hhhhh....eee...................eee.......ee.hhhhh......eee.......ee............eee..................eee....................eee..hhhhhhhhh..---------------------------------...hhhhhhhhhhhhh.....eee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------R---------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------LRR  PDB: A:67-90       LRR  PDB: A:91-112    --LRR  PDB: A:115-136   --LRR  PDB: A:139-160   --LRR  PDB: A:163-184   --LRR  PDB: A:187-208   --LRR  PDB: A:211-232   --LRR  PDB: A:235-256   -LRR  PDB: A:258-279   --------------------------LRR  PDB: A:306-328    LRR  PDB: A:329-350   --LRR  PDB: A:353-374   LRR  PDB: A:375-396   --LRR  PDB: A:399-420   --LRR  PDB: A:423-446     ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 4bsr A  28 GVLLRGCPTHCHCEPDGRMLLRVDCSDLGLSELPSNLSVFTSYLDLSMNNISQLLPNPLPSLRFLEELRLAGNALTYIPKGAFTGLYSLKVLMLQNNQLRHVPTEALQNLRSLQSLRLDANHISYVPPSCFSGLHSLRHLWLDDNALTEIPVQAFRSLSALQAMTLALNKIHHIPDYAFGNLSSLVVLHLHNNRIHSLGKKCFDGLHSLETLDLNYNNLDEFPTAIRTLSNLKELGFHSNNIRSIPEKAFVGNPSLITIHFYDNPIQFVGRSAFQHLPELRTLTLNGASQITEFPDLTGTANLESLTLTGAQISSLPQTVCNQLPNLQVLDLSYNLLEDLPSFSVCQKLQKIDLRHNEIYEIKVDTFQQLLSLRSLNLAWNKIAIIHPNAFSTLPSLIKLDLSSNLLSSFPITGLHGLTHLKLTGNHALQSLISSENFPELKVIEMPYAYQCCAFGVC---------------------------------ERDLEDFLLDFEEDLKALHSVQCSP 543
                                    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       | -         -         -         - |     527       537      
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   485                               519

Chain B from PDB  Type:PROTEIN  Length:480
 aligned with LGR5_HUMAN | O75473 from UniProtKB/Swiss-Prot  Length:907

    Alignment length:513
                                    40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540   
           LGR5_HUMAN    31 LRGCPTHCHCEPDGRMLLRVDCSDLGLSELPSNLSVFTSYLDLSMNNISQLLPNPLPSLRFLEELRLAGNALTYIPKGAFTGLYSLKVLMLQNNQLRHVPTEALQNLRSLQSLRLDANHISYVPPSCFSGLHSLRHLWLDDNALTEIPVQAFRSLSALQAMTLALNKIHHIPDYAFGNLSSLVVLHLHNNRIHSLGKKCFDGLHSLETLDLNYNNLDEFPTAIRTLSNLKELGFHSNNIRSIPEKAFVGNPSLITIHFYDNPIQFVGRSAFQHLPELRTLTLNGASQITEFPDLTGTANLESLTLTGAQISSLPQTVCNQLPNLQVLDLSYNLLEDLPSFSVCQKLQKIDLRHNEIYEIKVDTFQQLLSLRSLNLAWNKIAIIHPNAFSTLPSLIKLDLSSNLLSSFPITGLHGLTHLKLTGNHALQSLISSENFPELKVIEMPYAYQCCAFGVCENAYKISNQWNKGDNSSMDDLHKKDAGMFQAQDERDLEDFLLDFEEDLKALHSVQCSP 543
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........eeee.....eeee................eeeee.....................eee.....................eee.....................eee.....................eee.........hhhhhh......eee.......ee............eee.......ee............eee.........hhhhhhh....eee.......ee............eee.......ee.hhhhh......eeeee..................eeeee..........hhhhh....eee...................eee.......ee.hhhhh......eee.......ee............eee..................eee....................eee..hhhhhhhhh..---------------------------------..hhhhhhhhhhhhhhhhh..eee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------R---------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------LRR  PDB: B:67-90       LRR  PDB: B:91-112    --LRR  PDB: B:115-136   --LRR  PDB: B:139-160   --LRR  PDB: B:163-184   --LRR  PDB: B:187-208   --LRR  PDB: B:211-232   --LRR  PDB: B:235-256   -LRR  PDB: B:258-279   --------------------------LRR  PDB: B:306-328    LRR  PDB: B:329-350   --LRR  PDB: B:353-374   LRR  PDB: B:375-396   --LRR  PDB: B:399-420   --LRR  PDB: B:423-446     ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4bsr B  31 LRGCPTHCHCEPDGRMLLRVDCSDLGLSELPSNLSVFTSYLDLSMNNISQLLPNPLPSLRFLEELRLAGNALTYIPKGAFTGLYSLKVLMLQNNQLRHVPTEALQNLRSLQSLRLDANHISYVPPSCFSGLHSLRHLWLDDNALTEIPVQAFRSLSALQAMTLALNKIHHIPDYAFGNLSSLVVLHLHNNRIHSLGKKCFDGLHSLETLDLNYNNLDEFPTAIRTLSNLKELGFHSNNIRSIPEKAFVGNPSLITIHFYDNPIQFVGRSAFQHLPELRTLTLNGASQITEFPDLTGTANLESLTLTGAQISSLPQTVCNQLPNLQVLDLSYNLLEDLPSFSVCQKLQKIDLRHNEIYEIKVDTFQQLLSLRSLNLAWNKIAIIHPNAFSTLPSLIKLDLSSNLLSSFPITGLHGLTHLKLTGNHALQSLISSENFPELKVIEMPYAYQCCAFGVC---------------------------------ERDLEDFLLDFEEDLKALHSVQCSP 543
                                    40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480    |    -         -         -       520       530       540   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                485                               519

Chain C from PDB  Type:PROTEIN  Length:103
 aligned with RSPO1_HUMAN | Q2MKA7 from UniProtKB/Swiss-Prot  Length:263

    Alignment length:103
                                    49        59        69        79        89        99       109       119       129       139   
          RSPO1_HUMAN    40 CAKGCELCSEVNGCLKCSPKLFILLERNDIRQVGVCLPSCPPGYFDARNPDMNKCIKCKIEHCEACFSHNFCTKCKEGLYLHKGRCYPACPEGSSAANGTMEC 142
               SCOP domains ------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeee...eeeee....eeeeeee..eeeeeee......eeee......eeee.....eeee.....eeee....eee..eee................ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------- Transcript
                 4bsr C  40 CAKGCELCSEVNGCLKCSPKLFILLERNDIRQVGVCLPSCPPGYFDARNPDMNKCIKCKIEHCEACFSHNFCTKCKEGLYLHKGRCYPACPEGSSAANGTMEC 142
                                    49        59        69        79        89        99       109       119       129       139

Chain D from PDB  Type:PROTEIN  Length:104
 aligned with RSPO1_HUMAN | Q2MKA7 from UniProtKB/Swiss-Prot  Length:263

    Alignment length:104
                                    49        59        69        79        89        99       109       119       129       139    
          RSPO1_HUMAN    40 CAKGCELCSEVNGCLKCSPKLFILLERNDIRQVGVCLPSCPPGYFDARNPDMNKCIKCKIEHCEACFSHNFCTKCKEGLYLHKGRCYPACPEGSSAANGTMECS 143
               SCOP domains -------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeee...eeeee....eeeee......eeeee......eeee......eeee.....eeee.....eeee....eee..eee................. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------- Transcript
                 4bsr D  40 CAKGCELCSEVNGCLKCSPKLFILLERNDIRQVGVCLPSCPPGYFDARNPDMNKCIKCKIEHCEACFSHNFCTKCKEGLYLHKGRCYPACPEGSSAANGTMECS 143
                                    49        59        69        79        89        99       109       119       129       139

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 '\|'

(no "SCOP Domain" information available for 4BSR)

(no "CATH Domain" information available for 4BSR)

(no "Pfam Domain" information available for 4BSR)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (LGR5_HUMAN | O75473)

molecular function
	GO:0004930	G-protein coupled receptor activity	Combining with an extracellular signal and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0004871	signal transducer activity	Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
	GO:0004888	transmembrane signaling receptor activity	Combining with an extracellular or intracellular signal and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity or state as part of signal transduction.
biological process
	GO:0007186	G-protein coupled receptor signaling pathway	A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
	GO:2001013	epithelial cell proliferation involved in renal tubule morphogenesis	Any epithelial cell proliferation that is involved in renal tubule morphogenesis.
	GO:0001942	hair follicle development	The process whose specific outcome is the progression of the hair follicle over time, from its formation to the mature structure. A hair follicle is a tube-like opening in the epidermis where the hair shaft develops and into which the sebaceous glands open.
	GO:0048839	inner ear development	The process whose specific outcome is the progression of the inner ear over time, from its formation to the mature structure.
	GO:0009994	oocyte differentiation	The process in which a relatively unspecialized immature germ cell acquires the specialized features of a mature female gamete.
	GO:0090263	positive regulation of canonical Wnt signaling pathway	Any process that increases the rate, frequency, or extent of the Wnt signaling pathway through beta-catenin, the series of molecular signals initiated by binding of a Wnt protein to a frizzled family receptor on the surface of the target cell, followed by propagation of the signal via beta-catenin, and ending with a change in transcription of target genes.
	GO:0042127	regulation of cell proliferation	Any process that modulates the frequency, rate or extent of cell proliferation.
	GO:0007165	signal transduction	The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
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:0016021	integral component of membrane	The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
	GO:0005887	integral component of plasma membrane	The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
	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.
	GO:0032588	trans-Golgi network membrane	The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network.

Chain C,D (RSPO1_HUMAN | Q2MKA7)

molecular function
	GO:0001664	G-protein coupled receptor binding	Interacting selectively and non-covalently with a G-protein coupled receptor.
	GO:0008201	heparin binding	Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0005102	receptor binding	Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
biological process
	GO:0016055	Wnt signaling pathway	The series of molecular signals initiated by binding of a Wnt protein to a frizzled family receptor on the surface of the target cell and ending with a change in cell state.
	GO:0030177	positive regulation of Wnt signaling pathway	Any process that activates or increases the frequency, rate or extent of Wnt signal transduction.
	GO:0090263	positive regulation of canonical Wnt signaling pathway	Any process that increases the rate, frequency, or extent of the Wnt signaling pathway through beta-catenin, the series of molecular signals initiated by binding of a Wnt protein to a frizzled family receptor on the surface of the target cell, followed by propagation of the signal via beta-catenin, and ending with a change in transcription of target genes.
	GO:0001934	positive regulation of protein phosphorylation	Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
	GO:0002090	regulation of receptor internalization	Any process that modulates the frequency, rate or extent of receptor internalization.
	GO:0050896	response to stimulus	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 stimulus. The process begins with detection of the stimulus and ends with a change in state or activity or the cell or organism.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
		Ala C:135 - Ala C:136	[ RasMol ]
		Glu D:65 - Arg D:66	[ RasMol ]
		Ser D:133 - Ser D:134	[ RasMol ]

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Access by PDB/NDB ID
	4bsr
		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
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	RSPO1_HUMAN \| Q2MKA7
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	RSPO1_HUMAN \| Q2MKA7
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

4bso	CRYSTAL STRUCTURE OF R-SPONDIN 1 (FU1FU2) - NATIVE
4bsp	CRYSTAL STRUCTURE OF R-SPONDIN 1 (FU1FU2) - HOLMIUM SOAK
4bss	STRUCTURE OF THE ECTODOMAIN OF LGR5 IN COMPLEX WITH R-SPONDIN-1 (FU1FU2) IN P21 CRYSTAL FORM
4bst	STRUCTURE OF THE ECTODOMAIN OF LGR5 IN COMPLEX WITH R-SPONDIN-1 (FU1FU2) IN P6122 CRYSTAL FORM
4bsu	STRUCTURE OF THE ECTODOMAIN OF LGR5 IN COMPLEX WITH R-SPONDIN-1 (FU1FU2) IN C2 CRYSTAL FORM

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 10)

Sites (5, 5)

SS Bonds (24, 24)

Cis Peptide Bonds (3, 3)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 2)

PROSITE Motifs (1, 30)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (28, 30)

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File