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Title :   CRYSTAL STRUCTURE OF SAMP1 FROM HALOFERAX VOLCANII

Authors :   Y. J. Jeong, B. -C. Jeong, H. K. Song

Date :   21 Nov 10 (Deposition) - 30 Mar 11 (Release) - 16 Nov 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.55

Chains :   Asym./Biol. Unit : A

Keywords :   Ubiquitin-Like Protein, Protein Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. J. Jeong, B. -C. Jeong, H. K. Song
Crystal Structure Of Ubiquitin-Like Small Archaeal Modifier Protein 1 (Samp1) From Haloferax Volcanii.
Biochem. Biophys. Res. Commun. V. 405 112 2011
PubMed-ID: 21216237 | Reference-DOI: 10.1016/J.BBRC.2011.01.004

Compounds

Molecule 1 - SMALL ARCHAEAL MODIFIER PROTEIN 1
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET
	Expression System Strain	:	ROSETTA(DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Organism Scientific	:	HALOFERAX VOLCANII
	Organism Taxid	:	309800
	Strain	:	DS2
	Synonym	:	SAMP 1, UBIQUITIN-LIKE SMALL ARCHAEAL MODIFIER PROTEIN 1

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 5)

Sites (5, 5)

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ALA A:41 , ASP A:49 , HOH A:128 , HOH A:165	BINDING SITE FOR RESIDUE ACT A 88
2	AC2	SOFTWARE	ASP A:55 , HIS A:56 , GLU A:64 , GLU A:70 , HOH A:93 , HOH A:94	BINDING SITE FOR RESIDUE CD A 89
3	AC3	SOFTWARE	GLU A:11 , ASP A:30 , GLY A:87 , HOH A:171	BINDING SITE FOR RESIDUE CD A 90
4	AC4	SOFTWARE	GLU A:2 , ASP A:49 , HOH A:160 , HOH A:176 , HOH A:177	BINDING SITE FOR RESIDUE MG A 91
5	AC5	SOFTWARE	GLU A:43 , GLU A:77 , HOH A:145 , HOH A:156 , HOH A:157 , HOH A:158	BINDING SITE FOR RESIDUE MG A 92

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

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

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Chain A from PDB  Type:PROTEIN  Length:89
 aligned with SAMP1_HALVD | D4GUF6 from UniProtKB/Swiss-Prot  Length:87

    Alignment length:89
                              1                                                                                      
                              |      8        18        28        38        48        58        68        78         
           SAMP1_HALVD    - --MEWKLFADLAEVAGSRTVRVDVDGDATVGDALDALVGAHPALESRVFGDDGELYDHINVLRNGEAAALGEATAAGDELALFPPVSGG 87
               SCOP domains ----------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----ThiS-3po0A01 A:3-87                                                                   Pfam domains
         Sec.struct. author .eeeeeehhhhhhhhh..eeeee.....hhhhhhhhhhhhh..hhhhhh..........eeee..ee...........eeeee...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------- Transcript
                  3po0 A -1 GSMEWKLFADLAEVAGSRTVRVDVDGDATVGDALDALVGAHPALESRVFGDDGELYDHINVLRNGEAAALGEATAAGDELALFPPVSGG 87
                                     8        18        28        38        48        58        68        78

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	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 '\|'

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (1, 1)

Gene Ontology (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (SAMP1_HALVD | D4GUF6)

molecular function
	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:0031386	protein tag	A molecular function exhibited by a protein that is covalently attached (AKA tagged or conjugated) to another protein where it acts as a marker, recognized by the cellular apparatus to target the tagged protein for some cellular process such as modification, sequestration, transport or degradation.
biological process
	GO:0032446	protein modification by small protein conjugation	A protein modification process in which one or more groups of a small protein, such as ubiquitin or a ubiquitin-like protein, are covalently attached to a target protein.

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Description