1WBP - JenaLib

Asym./Biol. Unit (Jmol Viewer)

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

Title :   SRPK1 BOUND TO 9MER DOCKING MOTIF PEPTIDE

Authors :   J. C. Ngo, S. Chakrabarti, J. -H. Ding, A. Velazquez-Dones, B. Nolen, B. J. A. Adams, X. -D. Fu, G. Ghosh

Date :   04 Nov 04 (Deposition) - 19 Oct 05 (Release) - 08 Feb 17 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

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

Keywords :   Srpk, Kinase, Serine/Threonine-Protein Kinase, Transferase, Atp-Binding, Chromosome Partition, Differentiation, Mrna Processing, Mrna Splicing, Nuclear Protein, Nucleotide-Binding, Phosphorylation (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. C. Ngo, S. Chakrabarti, J. -H. Ding, A. Velazquez-Dones, B. Nolen, B. E. Aubol, J. A. Adams, X. -D. Fu, G. Ghosh
Interplay Between Srpk And Clk/Sty Kinases In Phosphorylation Of The Splicing Factor Asf/Sf2 Is Regulated By A Docking Motif In Asf/Sf2
Mol. Cell V. 20 77 2005
PubMed-ID: 16209947 | Reference-DOI: 10.1016/J.MOLCEL.2005.08.025

Molecule 1 - SERINE/THREONINE-PROTEIN KINASE SPRK1
	Chains	:	A
	EC Number	:	2.7.1.37
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET15B
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector	:	PET15B
	Fragment	:	RESIDUES 42-256 AND 474-655
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	SRPK1, SRPK1A PROTEIN KINASE, SERINE/ARGININE- RICH PROTEIN SPECIFIC KINASE 1, SR-PROTEIN-SPECIFIC KINASE 1, SFRS PROTEIN KINASE 1

Molecule 2 - MEMBRANE-ASSOCIATED GUANYLATE KINASE, WW AND PDZ DOMAIN- CONTAINING PROTEIN 1
	Chains	:	B
	Fragment	:	RESIDUES 1382-1390
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Other Details	:	9 MER PEPTIDE RRRERSPTR BOUND TO A GROOVE FORMED BY THE MAP KINASE INSERT, HELIX AF AND HELIX AG
	Synonym	:	ATROPHIN-1-INTERACTING PROTEIN 3,AIP-3,BAI1-ASSOCIATED PROTEIN 1,BAP-1,MEMBRANE-ASSOCIATED GUANYLATE KINASE INVERTED 1,MAGI-1,TRINUCLEOTIDE REPEAT-CONTAINING GENE 19 PROTEIN, WW DOMAIN-CONTAINING PROTEIN 3,WWP3,9-MER PEPTIDE
	Synthetic	:	YES

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 2)

No.	Name	Count	Type	Full Name
1	ACT	1	Ligand/Ion	ACETATE ION
2	ADP	1	Ligand/Ion	ADENOSINE-5'-DIPHOSPHATE

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	LYS A:215 , GLU A:217	BINDING SITE FOR RESIDUE ACT A 900
2	AC2	SOFTWARE	LEU A:86 , GLY A:87 , TRP A:88 , GLY A:89 , SER A:92 , VAL A:94 , ALA A:107 , LYS A:109 , GLU A:166 , LEU A:168	BINDING SITE FOR RESIDUE ADP A 950

(no "SS Bond" information available for 1WBP)

(no "Cis Peptide Bond" information available for 1WBP)

Asymmetric/Biological Unit (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_051669	I	72	T	SRPK1_HUMAN	Polymorphism	35519113	A	I	72	T

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

Asymmetric/Biological Unit (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PROTEIN_KINASE_ATP	PS00107	Protein kinases ATP-binding region signature.	SRPK1_HUMAN	86-109	1	A:86-109
2	PROTEIN_KINASE_ST	PS00108	Serine/Threonine protein kinases active-site signature.	SRPK1_HUMAN	209-221	1	A:209-221

Asymmetric/Biological Unit (10, 10)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1a	ENST00000373825	1a	ENSE00002200129	chr6:35889119-35888821	299	SRPK1_HUMAN	1-5	5	0	-	-
1.1j	ENST00000373825	1j	ENSE00002153471	chr6:35888305-35888245	61	SRPK1_HUMAN	5-25	21	0	-	-
1.4c	ENST00000373825	4c	ENSE00002186784	chr6:35858790-35858672	119	SRPK1_HUMAN	25-65	41	0	-	-
1.5	ENST00000373825	5	ENSE00002182848	chr6:35856700-35856592	109	SRPK1_HUMAN	65-101	37	1	A:67-101	35
1.6a	ENST00000373825	6a	ENSE00002183727	chr6:35855888-35855801	88	SRPK1_HUMAN	101-130	30	1	A:101-130	30
1.7c	ENST00000373825	7c	ENSE00002191548	chr6:35854588-35854501	88	SRPK1_HUMAN	131-160	30	1	A:131-160	30
1.8b	ENST00000373825	8b	ENSE00002187434	chr6:35842116-35842010	107	SRPK1_HUMAN	160-195	36	1	A:160-195	36
1.9	ENST00000373825	9	ENSE00002160762	chr6:35840505-35840340	166	SRPK1_HUMAN	196-251	56	1	A:196-237	42
1.10b	ENST00000373825	10b	ENSE00002177696	chr6:35838736-35838711	26	SRPK1_HUMAN	251-259	9	0	-	-
1.11	ENST00000373825	11	ENSE00002143565	chr6:35838271-35838058	214	SRPK1_HUMAN	260-331	72	0	-	-
1.12c	ENST00000373825	12c	ENSE00002182450	chr6:35837678-35837259	420	SRPK1_HUMAN	331-471	141	0	-	-
1.13c	ENST00000373825	13c	ENSE00002197474	chr6:35836887-35836787	101	SRPK1_HUMAN	471-504	34	1	A:477-504	28
1.14a	ENST00000373825	14a	ENSE00002178481	chr6:35825145-35825038	108	SRPK1_HUMAN	505-540	36	1	A:505-540	36
1.15	ENST00000373825	15	ENSE00002194065	chr6:35810381-35810312	70	SRPK1_HUMAN	541-564	24	1	A:541-564	24
1.16c	ENST00000373825	16c	ENSE00002190158	chr6:35806206-35806114	93	SRPK1_HUMAN	564-595	32	1	A:564-595	32
1.17c	ENST00000373825	17c	ENSE00002026764	chr6:35803265-35800743	2523	SRPK1_HUMAN	595-655	61	1	A:595-655	61

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:350
 aligned with SRPK1_HUMAN | Q96SB4 from UniProtKB/Swiss-Prot  Length:655

    Alignment length:589
                                    76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646         
         SRPK1_HUMAN     67 YHLVKIGDLFNGRYHVIRKLGWGHFSTVWLSWDIQGKKFVAMKVVKSAEHYTETALDEIRLLKSVRNSDPNDPNREMVVQLLDDFKISGVNGTHICMVFEVLGHHLLKWIIKSNYQGLPLPCVKKIIQQVLQGLDYLHTKCRIIHTDIKPENILLSVNEQYIRRLAAEATEWQRSGAPPPSGSAVSTAPQPKPADKMSKNKKKKLKKKQKRQAELLEKRMQEIEEMEKESGPGQKRPNKQEESESPVERPLKENPPNKMTQEKLEESSTIGQDQTLMERDTEGGAAEINCNGVIEVINYTQNSNNETLRHKEDLHNANDCDVQNLNQESSFLSSQNGDSSTSQETDSCTPITSEVSDTMVCQSSSTVGQSFSEQHISQLQESIRAEIPCEDEQEQEHNGPLDNKGKSTAGNFLVNPLEPKNAEKLKVKIADLGNACWVHKHFTEDIQTRQYRSLEVLIGSGYNTPADIWSTACMAFELATGDYLFEPHSGEEYTRDEDHIALIIELLGKVPRKLIVAGKYSKEFFTKKGDLKHITKLKPWGLFEVLVEKYEWSQEEAAGFTDFLLPMLELIPEKRATAAECLRHPWLNS  655
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 1wbpA01 A:67-133,A:145-167 Phosphorylase Kinase; domain 1          1wbpA02    1wbpA01                1wbpA02 A:134-144,A:168-655 Transferase(Phosphotransferase) domain 1                                                                                                                                                                                                                                                                                                                                                                                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........ee...eeeeeeeee....eeeeeee....eeeeeee...hhhhhhhhhhhhhhhhhhhhh...hhhhhh...eeeeeeee....eeeeeee..eeeehhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhh.ee....hhh.eeee.hhhhhhhhhhhhh.-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------................eee......ee..........hhhhhhhhhhhh....hhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhh..hhhhhhhh.hhhhh................hhhhhhhhh...hhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -----T------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------PROTEIN_KINASE_ATP      ---------------------------------------------------------------------------------------------------PROTEIN_KINAS-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.5  PDB: A:67-101            -----------------------------Exon 1.7c  PDB: A:131-160     ------------------------------------------------------------------------------------------1.10b    Exon 1.11  PDB: - UniProt: 260-331                                      -------------------------------------------------------------------------------------------------------------------------------------------Exon 1.13c  PDB: A:477-504        Exon 1.14a  PDB: A:505-540          Exon 1.15  PDB: A:541-56------------------------------Exon 1.17c  PDB: A:595-655 UniProt: 595-655                   Transcript 1 (1)
           Transcript 1 (2) ----------------------------------Exon 1.6a  PDB: A:101-130     -----------------------------Exon 1.8b  PDB: A:160-195           Exon 1.9  PDB: A:196-237 UniProt: 196-251 [INCOMPLETE]  -------------------------------------------------------------------------------Exon 1.12c  PDB: - UniProt: 331-471                                                                                                          --------------------------------------------------------------------------------------------Exon 1.16c  PDB: A:564-595      ------------------------------------------------------------ Transcript 1 (2)
                1wbp A   67 YHLVKIGDLFNGRYHVIRKLGWGHFSTVWLSWDIQGKKFVAMKVVKSAEHYTETALDEIRLLKSVRNSDPNDPNREMVVQLLDDFKISGVNGTHICMVFEVLGHHLLKWIIKSNYQGLPLPCVKKIIQQVLQGLDYLHTKCRIIHTDIKPENILLSVNEQYIRRLAAEATE-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------NFLVNPLEPKNAEKLKVKIADLGNACWVHKHFTEDIQTRQYRSLEVLIGSGYNTPADIWSTACMAFELATGDYLFEPHSGEEYTRDEDHIALIIELLGKVPRKLIVAGKYSKEFFTKKGDLKHITKLKPWGLFEVLVEKYEWSQEEAAGFTDFLLPMLELIPEKRATAAECLRHPWLNS  655
                                    76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236|        -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -         -|      486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646         
                                                                                                                                                                                                    237                                                                                                                                                                                                                                             477

Chain B from PDB  Type:PROTEIN  Length:7
 aligned with MAGI1_HUMAN | Q96QZ7 from UniProtKB/Swiss-Prot  Length:1491

    Alignment length:7
         MAGI1_HUMAN   1384 RERSPTR 1390
               SCOP domains ------- SCOP domains
               CATH domains ------- CATH domains
               Pfam domains ------- Pfam domains
         Sec.struct. author ....... Sec.struct. author
                 SAPs(SNPs) ------- SAPs(SNPs)
                    PROSITE ------- PROSITE
                 Transcript ------- Transcript
                1wbp B    3 RERSPTR    9

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 1WBP)

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Phosphorylase Kinase; domain 1 (1392)

Homologous Superfamily: Phosphorylase Kinase; domain 1 (1392)

Human (Homo sapiens) (1036)

1wbpA01

A:67-133,A:145-167

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Transferase(Phosphotransferase); domain 1 (1379)

Homologous Superfamily: Transferase(Phosphotransferase) domain 1 (1379)

Human (Homo sapiens) (1049)

1wbpA02

A:134-144,A:168-655

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

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (SRPK1_HUMAN | Q96SB4)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0016301	kinase activity	Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
	GO:0000287	magnesium ion binding	Interacting selectively and non-covalently with magnesium (Mg) ions.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	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:0004672	protein kinase activity	Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
	GO:0004674	protein serine/threonine kinase activity	Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
	GO:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
	GO:0008380	RNA splicing	The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
	GO:0030154	cell differentiation	The process in which relatively unspecialized cells, e.g. embryonic or regenerative cells, acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
	GO:0007059	chromosome segregation	The process in which genetic material, in the form of chromosomes, is organized into specific structures and then physically separated and apportioned to two or more sets. In eukaryotes, chromosome segregation begins with the condensation of chromosomes, includes chromosome separation, and ends when chromosomes have completed movement to the spindle poles.
	GO:0045087	innate immune response	Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
	GO:0035556	intracellular signal transduction	The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
	GO:0006397	mRNA processing	Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide.
	GO:0045071	negative regulation of viral genome replication	Any process that stops, prevents, or reduces the frequency, rate or extent of viral genome replication.
	GO:0016310	phosphorylation	The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
	GO:0045070	positive regulation of viral genome replication	Any process that activates or increases the frequency, rate or extent of viral genome replication.
	GO:0006468	protein phosphorylation	The process of introducing a phosphate group on to a protein.
	GO:0050684	regulation of mRNA processing	Any process that modulates the frequency, rate or extent of mRNA processing, those processes involved in the conversion of a primary mRNA transcript into a mature mRNA prior to its translation into polypeptide.
	GO:0048024	regulation of mRNA splicing, via spliceosome	Any process that modulates the frequency, rate or extent of mRNA splicing via a spliceosomal mechanism.
	GO:0035092	sperm chromatin condensation	The progressive compaction of the spermatid chromatin so that it reaches a level of condensation that is not compatible with nuclear activities such as transcription or DNA replication.
	GO:0016032	viral process	A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005783	endoplasmic reticulum	The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
	GO:0043231	intracellular membrane-bounded organelle	Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
	GO:0016363	nuclear matrix	The dense fibrillar network lying on the inner side of the nuclear membrane.
	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.
	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.

Chain B (MAGI1_HUMAN | Q96QZ7)

molecular function
	GO:0005524	ATP binding	Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
	GO:0051393	alpha-actinin binding	Interacting selectively and non-covalently with alpha-actinin, one of a family of proteins that cross-link F-actin as antiparallel homodimers. Alpha-actinin has a molecular mass of 93-103 KDa; at the N-terminus there are two calponin homology domains, at the C-terminus there are two EF-hands. These two domains are connected by the rod domain. This domain is formed by triple-helical spectrin repeats.
	GO:0000166	nucleotide binding	Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
	GO:0008022	protein C-terminus binding	Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxy function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
	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:0032947	protein complex scaffold activity	A structural molecule activity that provides a physical support for the assembly of a multiprotein complex. The scaffold may or may not be part of the final complex.
biological process
	GO:0007155	cell adhesion	The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
	GO:0007166	cell surface receptor signaling pathway	A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
	GO:0070997	neuron death	The process of cell death in a neuron.
	GO:0006461	protein complex assembly	The aggregation, arrangement and bonding together of a set of components to form a protein complex.
cellular component
	GO:0005912	adherens junction	A cell junction at which anchoring proteins (cadherins or integrins) extend through the plasma membrane and are attached to actin filaments.
	GO:0005923	bicellular tight junction	An occluding cell-cell junction that is composed of a branching network of sealing strands that completely encircles the apical end of each cell in an epithelial sheet; the outer leaflets of the two interacting plasma membranes are seen to be tightly apposed where sealing strands are present. Each sealing strand is composed of a long row of transmembrane adhesion proteins embedded in each of the two interacting plasma membranes.
	GO:0030054	cell junction	A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
	GO:0042995	cell projection	A prolongation or process extending from a cell, e.g. a flagellum or axon.
	GO:0005911	cell-cell junction	A cell junction that forms a connection between two or more cells in a multicellular organism; excludes direct cytoplasmic junctions such as ring canals.
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005654	nucleoplasm	That part of the nuclear content other than the chromosomes or the nucleolus.
	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/Biological Unit
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		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	MAGI1_HUMAN \| Q96QZ7	:	2kpk 2kpl 2q9v 2r4h 2ysd 2yse 2zaj 3bpu
	SRPK1_HUMAN \| Q96SB4	:	1wak 3beg 4wua 5my8

1wak	X-RAY STRUCTURE OF SRPK1

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 2)

Sites (2, 2)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

PROSITE Motifs (2, 2)

Exons (10, 10)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (2, 2)

Pfam Domains (0, 0)

Gene Ontology (42, 47)

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