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Title :   CRYSTAL STRUCTURE OF CASKIN1 TANDEM SAMS

Authors :   R. L. Stafford, J. U. Bowie

Date :   10 Jun 11 (Deposition) - 14 Dec 11 (Release) - 28 Mar 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

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

Keywords :   Sam Domain, Protein-Protein Interaction, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   R. L. Stafford, E. Hinde, M. J. Knight, M. A. Pennella, J. Ear, M. A. Digman, E. Gratton, J. U. Bowie
Tandem Sam Domain Structure Of Human Caskin1: A Presynaptic Self-Assembling Scaffold For Cask.
Structure V. 19 1826 2011
PubMed-ID: 22153505 | Reference-DOI: 10.1016/J.STR.2011.09.018

Molecule 1 - CASKIN-1
	Chains	:	A, B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET-3A
	Expression System Strain	:	BL-21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	UNP RESIDUES 470-605
	Gene	:	CASKIN1, KIAA1306
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	CASK-INTERACTING PROTEIN 1

		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 (2, 2)

No.	Name	Count	Type	Full Name
1	CL	1	Ligand/Ion	CHLORIDE ION
2	SO4	1	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 1)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	SO4	1	Ligand/Ion	SULFATE ION

Biological Unit 2 (0, 0)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	SO4	-1	Ligand/Ion	SULFATE ION

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ARG A:139 , ARG A:140 , HOH A:159	BINDING SITE FOR RESIDUE SO4 A 147
2	AC2	SOFTWARE	ARG B:140	BINDING SITE FOR RESIDUE CL B 147

(no "SS Bond" information available for 3SEI)

(no "Cis Peptide Bond" information available for 3SEI)

(no "SAP(SNP)/Variant" information available for 3SEI)

Asymmetric Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SAM_DOMAIN	PS50105	SAM domain profile.	CSKI1_HUMAN	472-535 541-605	4	A:5-68 B:5-68 A:74-138 B:74-138

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SAM_DOMAIN	PS50105	SAM domain profile.	CSKI1_HUMAN	472-535 541-605	2	A:5-68 - A:74-138 -

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SAM_DOMAIN	PS50105	SAM domain profile.	CSKI1_HUMAN	472-535 541-605	2	- B:5-68 - B:74-138

(no "Exon" information available for 3SEI)

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
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Chain A from PDB  Type:PROTEIN  Length:146
 aligned with CSKI1_HUMAN | Q8WXD9 from UniProtKB/Swiss-Prot  Length:1431

    Alignment length:146
                                   477       487       497       507       517       527       537       547       557       567       577       587       597       607      
          CSKI1_HUMAN   468 ASEGKSSEAVSQWLTAFQLQLYAPNFISAGYDLPTISRMTPEDLTAIGVTKPGHRKKIAAEISGLSIPDWLPEHKPANLAVWLSMIGLAQYYKVLVDNGYENIDFITDITWEDLQEIGITKLGHQKKLMLAVRKLAELQKAEYAKY 613
               SCOP domains d3seia1 A:1-71 automated matches                                       d3seia2 A:72-146 automated matches                                          SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhh..hhhhhhhh...hhhhhhhhhhhhhh.............hhhhhhhhh.hhhhhhhhhhh...hhhhhh..hhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----SAM_DOMAIN  PDB: A:5-68 UniProt: 472-535                        -----SAM_DOMAIN  PDB: A:74-138 UniProt: 541-605                       -------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3sei A   1 TREGKSSEAVSQWLTAFQLQLYAPNFISAGYDLPTISRMTPEDLTAIGVTKPGHRKKIAAEISGLSIPDWLPEHKPANLAVWLSMIGLAQYYKVLVDNGYENIDFITDITWEDLQEIGITKLGHQKKLMLAVRKLAELRRHHHHHH 146
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

Chain B from PDB  Type:PROTEIN  Length:142
 aligned with CSKI1_HUMAN | Q8WXD9 from UniProtKB/Swiss-Prot  Length:1431

    Alignment length:142
                                   477       487       497       507       517       527       537       547       557       567       577       587       597       607  
          CSKI1_HUMAN   468 ASEGKSSEAVSQWLTAFQLQLYAPNFISAGYDLPTISRMTPEDLTAIGVTKPGHRKKIAAEISGLSIPDWLPEHKPANLAVWLSMIGLAQYYKVLVDNGYENIDFITDITWEDLQEIGITKLGHQKKLMLAVRKLAELQKAE 609
               SCOP domains d3seib1 B:1-71 automated matches                                       d3seib2 B:72-142 automated matches                                      SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhh..hhhhhhhh...hhhhhhhhhhhhhh.............hhhhhhhhh.hhhhhhhhhh....hhhhhh..hhhhhhhh...hhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----SAM_DOMAIN  PDB: B:5-68 UniProt: 472-535                        -----SAM_DOMAIN  PDB: B:74-138 UniProt: 541-605                       ---- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3sei B   1 TREGKSSEAVSQWLTAFQLQLYAPNFISAGYDLPTISRMTPEDLTAIGVTKPGHRKKIAAEISGLSIPDWLPEHKPANLAVWLSMIGLAQYYKVLVDNGYENIDFITDITWEDLQEIGITKLGHQKKLMLAVRKLAELRRHH 142
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140

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: SAM domain-like (639)

Superfamily: SAM/Pointed domain (61)

Family: automated matches (20)

Protein domain: automated matches (20)

Human (Homo sapiens) [TaxId: 9606] (18)

1a	d3seia1	A:1-71
1b	d3seia2	A:72-146
1c	d3seib1	B:1-71
1d	d3seib2	B:72-142

(no "CATH Domain" information available for 3SEI)

(no "Pfam Domain" information available for 3SEI)

Asymmetric Unit(hide GO term definitions)

Chain A,B (CSKI1_HUMAN | Q8WXD9)

molecular function
	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:0019904	protein domain specific binding	Interacting selectively and non-covalently with a specific domain of a protein.
biological process
	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:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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Description

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Ligands, Modified Residues, Ions (2, 2)

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