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Title :   STRUCTURE OF A SARCOPLASMIC CALCIUM-BINDING PROTEIN FROM AMPHIOXUS REFINED AT 2.4 ANGSTROMS RESOLUTION

Authors :   W. J. Cook, Y. S. Babu, J. A. Cox

Date :   30 Jul 93 (Deposition) - 31 Oct 93 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

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

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

Reference :   W. J. Cook, L. C. Jeffrey, J. A. Cox, S. Vijay-Kumar
Structure Of A Sarcoplasmic Calcium-Binding Protein From Amphioxus Refined At 2. 4 A Resolution.
J. Mol. Biol. V. 229 461 1993
PubMed-ID: 8429557 | Reference-DOI: 10.1006/JMBI.1993.1046
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 3)

Sites (6, 6)

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASP A:19 , ASN A:21 , ASP A:23 , SER A:25 , ASP A:30	BINDING SITE FOR RESIDUE CA A 186
2	AC2	SOFTWARE	ASP A:70 , ASN A:72 , ASP A:74 , VAL A:76 , GLU A:81 , HOH A:189	BINDING SITE FOR RESIDUE CA A 187
3	AC3	SOFTWARE	ASP A:115 , SER A:117 , ASP A:119 , ILE A:121 , GLU A:126	BINDING SITE FOR RESIDUE CA A 188
4	EF1	UNKNOWN	ASP A:19 , MET A:20 , ASN A:21 , HIS A:22 , ASP A:23 , GLY A:24 , SER A:25 , ILE A:26 , GLN A:27 , ASP A:28 , ASN A:29 , ASP A:30	NULL
5	EF2	UNKNOWN	ASP A:70 , ILE A:71 , ASN A:72 , LYS A:73 , ASP A:74 , ASP A:75 , VAL A:76 , VAL A:77 , SER A:78 , TRP A:79 , GLU A:80 , GLU A:81	NULL
6	EF3	UNKNOWN	ASP A:115 , VAL A:116 , SER A:117 , GLY A:118 , ASP A:119 , GLY A:120 , ILE A:121 , VAL A:122 , ASP A:123 , LEU A:124 , GLU A:125 , GLU A:126	NULL

SS Bonds (1, 1)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (3, 3)

Asymmetric Unit (3, 3)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_SCP2_BRALA_001 *	S	25	A	SCP2_BRALA	---	---	A	S	25	A
2	UniProt	VAR_SCP2_BRALA_002 *	D	28	W	SCP2_BRALA	---	---	A	D	28	W
3	UniProt	VAR_SCP2_BRALA_003 *	N	29	E	SCP2_BRALA	---	---	A	N	29	E
	* ID not provided by source

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

Biological Unit 1 (3, 6)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_SCP2_BRALA_001 *	S	25	A	SCP2_BRALA	---	---	A	S	25	A
2	UniProt	VAR_SCP2_BRALA_002 *	D	28	W	SCP2_BRALA	---	---	A	D	28	W
3	UniProt	VAR_SCP2_BRALA_003 *	N	29	E	SCP2_BRALA	---	---	A	N	29	E
	* ID not provided by source

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

PROSITE Motifs (2, 6)

Asymmetric Unit (2, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	SCP2_BRALA	5-41 57-92 102-137	3	A:5-41 A:57-92 A:102-137
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	SCP2_BRALA	19-31 70-82 115-127	3	A:19-31 A:70-82 A:115-127

Biological Unit 1 (2, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	SCP2_BRALA	5-41 57-92 102-137	6	A:5-41 A:57-92 A:102-137
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	SCP2_BRALA	19-31 70-82 115-127	6	A:19-31 A:70-82 A:115-127

Exons (0, 0)

Sequences/Alignments

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:185
 aligned with SCP2_BRALA | P04570 from UniProtKB/Swiss-Prot  Length:185

    Alignment length:185
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180     
           SCP2_BRALA     1 GLNDFQKQKIKFTFDFFLDMNHDGSIQDNDFEDMMTRYKEVNKGSLSDADYKSMQASLEDEWRDLKGRADINKDDVVSWEEYLAMWEKTIATCKSVADLPAWCQNRIPFLFKGMDVSGDGIVDLEEFQNYCKNFQLQCADVPAVYNVITDGGKVTFDLNRYKELYYRLLTSPAADAGNTLMGQKP 185
               SCOP domains d2sasa_ A: Sarcoplasmic calcium-binding protein                                                                                                                                           SCOP domains
               CATH domains 2sasA00 A:1-185 EF-hand                                                                                                                                                                   CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------EF_hand_6-2sasA01 A:106-133 ---------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhh......eeehhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh......eeehhhhhhhhhhhhh...........hhhhhhhhhhhh.........hhhhhhhhh........hhhhhhhh.........hhhhhhhhhhhhh.....hhhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------A--WE------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ----EF_HAND_2  PDB: A:5-41 UniProt: 5-41 ---------------EF_HAND_2  PDB: A:57-92             ---------EF_HAND_2  PDB: A:102-137           ------------------------------------------------ PROSITE (1)
                PROSITE (2) ------------------EF_HAND_1    --------------------------------------EF_HAND_1    --------------------------------EF_HAND_1    ---------------------------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2sas A   1 GLNDFQKQKIKFTFDFFLDMNHDGSIQDNDFEDMMTRYKEVNKGSLSDADYKSMQASLEDEWRDLKGRADINKDDVVSWEEYLAMWEKTIATCKSVADLPAWCQNRIPFLFKGMDVSGDGIVDLEEFQNYCKNFQLQCADVPAVYNVITDGGKVTFDLNRYKELYYRLLTSPAADAGNTLMGQKP 185
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
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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 (1, 1)

CATH Domains (1, 1)

Pfam Domains (1, 1)

Gene Ontology (2, 2)

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