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Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF THE R-TYPE CALCIUM CHANNEL (CAV2.3) IQ DOMAIN AND CA2+CALMODULIN COMPLEX

Authors :   M. X. Mori, C. W. Vander Kooi, D. J. Leahy, D. T. Yue

Date :   14 Jan 08 (Deposition) - 25 Mar 08 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.30

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

Keywords :   Ion Channel, Calmodulin, Calcium Channel, Iq Domain, Facillitation, Inactivation, Calcium-Dependent, Voltage- Gated, Robetta, Simulations, Acetylation, Methylation, Phosphoprotein, Ubl Conjugation, Calcium Transport, Glycoprotein, Ion Transport, Ionic Channel, Membrane, Transmembrane, Transport, Voltage-Gated Channel, Membrane Protein, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. X. Mori, C. W. Vander Kooi, D. J. Leahy, D. T. Yue
Crystal Structure Of The Cav2 Iq Domain In Complex With Ca2+/Calmodulin
To Be Published
PubMed: search
(for further references see the PDB file header)

Molecule 1 - CALMODULIN
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET24B
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	CALM1, CALM, CAM, CAM1
	Organism Common	:	NORWAY RAT
	Organism Scientific	:	RATTUS NORVEGICUS
	Organism Taxid	:	10116
	Synonym	:	CAM

Molecule 2 - VOLTAGE-DEPENDENT R-TYPE CALCIUM CHANNEL SUBUNIT ALPHA-1E PEPTIDE
	Chains	:	B
	Engineered	:	YES
	Other Details	:	THE PEPTIDE WAS CHEMICALLY SYNTHESIZED (GENBANK ACCESSION NO. Q15878).
	Synthetic	:	YES

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (2x)	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 6)

No.	Name	Count	Type	Full Name
1	CA	4	Ligand/Ion	CALCIUM ION
2	SO4	2	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	CA	-1	Ligand/Ion	CALCIUM ION
2	SO4	2	Ligand/Ion	SULFATE ION

Biological Unit 2 (1, 4)

No.	Name	Count	Type	Full Name
1	CA	-1	Ligand/Ion	CALCIUM ION
2	SO4	4	Ligand/Ion	SULFATE ION

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASP A:93 , ASP A:95 , ASN A:97 , TYR A:99 , GLU A:104 , HOH A:239	BINDING SITE FOR RESIDUE CA A 149
2	AC2	SOFTWARE	ASP A:129 , ASP A:131 , ASP A:133 , GLN A:135 , GLU A:140 , HOH A:161	BINDING SITE FOR RESIDUE CA A 150
3	AC3	SOFTWARE	ASP A:20 , ASP A:22 , ASP A:24 , THR A:26 , GLU A:31 , HOH A:173	BINDING SITE FOR RESIDUE CA A 151
4	AC4	SOFTWARE	ASP A:56 , ASP A:58 , ASN A:60 , THR A:62 , GLU A:67 , HOH A:168 , HOH A:242	BINDING SITE FOR RESIDUE CA A 152
5	AC5	SOFTWARE	ARG A:86 , ARG A:90 , TYR A:138 , HOH A:202	BINDING SITE FOR RESIDUE SO4 A 153
6	AC6	SOFTWARE	GLY A:40 , HIS A:107 , ASN A:111 , HOH A:215 , HOH A:224 , HOH A:249 , HOH A:281	BINDING SITE FOR RESIDUE SO4 A 154

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

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

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

Asymmetric Unit (2, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	CALM3_RAT	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
				CALM1_RAT	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
				CALM2_RAT	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	CALM3_RAT	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141
				CALM1_RAT	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141
				CALM2_RAT	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141

Biological Unit 1 (2, 24)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	CALM3_RAT	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
				CALM1_RAT	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
				CALM2_RAT	8-43 44-79 81-116 117-149	4	A:7-42 A:43-78 A:80-115 A:116-147
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	CALM3_RAT	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141
				CALM1_RAT	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141
				CALM2_RAT	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141

Biological Unit 2 (2, 48)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	EF_HAND_2	PS50222	EF-hand calcium-binding domain profile.	CALM3_RAT	8-43 44-79 81-116 117-149	8	A:7-42 A:43-78 A:80-115 A:116-147
				CALM1_RAT	8-43 44-79 81-116 117-149	8	A:7-42 A:43-78 A:80-115 A:116-147
				CALM2_RAT	8-43 44-79 81-116 117-149	8	A:7-42 A:43-78 A:80-115 A:116-147
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	CALM3_RAT	21-33 57-69 94-106 130-142	8	A:20-32 A:56-68 A:93-105 A:129-141
				CALM1_RAT	21-33 57-69 94-106 130-142	8	A:20-32 A:56-68 A:93-105 A:129-141
				CALM2_RAT	21-33 57-69 94-106 130-142	8	A:20-32 A:56-68 A:93-105 A:129-141

Asymmetric Unit (5, 5)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1	ENSRNOT00000022603	1	ENSRNOE00000444589	chr1:77252808-77252705	104	CALM3_RAT	1-1	1	0	-	-
1.2	ENSRNOT00000022603	2	ENSRNOE00000354112	chr1:77248702-77248672	31	CALM3_RAT	2-12	11	1	A:3-11	9
1.3	ENSRNOT00000022603	3	ENSRNOE00000337344	chr1:77246477-77246334	144	CALM3_RAT	12-60	49	1	A:11-59	49
1.4	ENSRNOT00000022603	4	ENSRNOE00000316778	chr1:77246246-77246140	107	CALM3_RAT	60-95	36	1	A:59-94	36
1.5	ENSRNOT00000022603	5	ENSRNOE00000294358	chr1:77246001-77245866	136	CALM3_RAT	96-141	46	1	A:95-140	46
1.6	ENSRNOT00000022603	6	ENSRNOE00000161097	chr1:77245776-77245475	302	CALM3_RAT	141-149	9	1	A:140-147	8
1.7	ENSRNOT00000022603	7	ENSRNOE00000437380	chr1:77244456-77244169	288	CALM3_RAT	-	0	0	-	-

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
	(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:145
 aligned with CALM1_RAT | P0DP29 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:145
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143     
           CALM1_RAT      4 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  148
               SCOP domains d3bxla_ A: Calmodulin                                                                                                                             SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhhhh......eehhhhhhhhhhhhhh..hhhhhhhhhhhhh.......hhhhhhhhhhhhh...hhhhhhhhhhhhh.......hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----EF_HAND_2  PDB: A:7-42 UniProt: 8-43EF_HAND_2  PDB: A:43-78             -EF_HAND_2  PDB: A:80-115            EF_HAND_2  PDB: A:116-147        PROSITE (1)
                PROSITE (2) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (3)
                PROSITE (4) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (4)
                PROSITE (5) -----------------EF_HAND_1    -----------------------EF_HAND_1    ------------------------EF_HAND_1    -----------------------EF_HAND_1    ------ PROSITE (5)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3bxl A    3 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  147
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142

Chain A from PDB  Type:PROTEIN  Length:145
 aligned with CALM2_RAT | P0DP30 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:145
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143     
           CALM2_RAT      4 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  148
               SCOP domains d3bxla_ A: Calmodulin                                                                                                                             SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhhhh......eehhhhhhhhhhhhhh..hhhhhhhhhhhhh.......hhhhhhhhhhhhh...hhhhhhhhhhhhh.......hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----EF_HAND_2  PDB: A:7-42 UniProt: 8-43EF_HAND_2  PDB: A:43-78             -EF_HAND_2  PDB: A:80-115            EF_HAND_2  PDB: A:116-147        PROSITE (2)
                PROSITE (3) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (3)
                PROSITE (4) -----------------EF_HAND_1    -----------------------EF_HAND_1    ------------------------EF_HAND_1    -----------------------EF_HAND_1    ------ PROSITE (4)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                3bxl A    3 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  147
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142

Chain A from PDB  Type:PROTEIN  Length:145
 aligned with CALM3_RAT | P0DP31 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:145
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143     
           CALM3_RAT      4 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  148
               SCOP domains d3bxla_ A: Calmodulin                                                                                                                             SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhhhh......eehhhhhhhhhhhhhh..hhhhhhhhhhhhh.......hhhhhhhhhhhhh...hhhhhhhhhhhhh.......hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ----EF_HAND_2  PDB: A:7-42 UniProt: 8-43EF_HAND_2  PDB: A:43-78             -EF_HAND_2  PDB: A:80-115            EF_HAND_2  PDB: A:116-147        PROSITE (3)
                PROSITE (4) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (4)
                PROSITE (5) ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (5)
                PROSITE (6) -----------------EF_HAND_1    -----------------------EF_HAND_1    ------------------------EF_HAND_1    -----------------------EF_HAND_1    ------ PROSITE (6)
           Transcript 1 (1) Exon 1.2 -----------------------------------------------Exon 1.4  PDB: A:59-94              Exon 1.5  PDB: A:95-140 UniProt: 96-141       ------- Transcript 1 (1)
           Transcript 1 (2) --------Exon 1.3  PDB: A:11-59 UniProt: 12-60            --------------------------------------------------------------------------------Exon 1.6 Transcript 1 (2)
                3bxl A    3 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  147
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142

Chain B from PDB  Type:PROTEIN  Length:17
 aligned with CAC1E_HUMAN | Q15878 from UniProtKB/Swiss-Prot  Length:2313

    Alignment length:17
                                  1876       
         CAC1E_HUMAN   1867 KIYAAMMIMDYYKQSKV 1883
               SCOP domains ----------------- SCOP domains
               CATH domains ----------------- CATH domains
               Pfam domains ----------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------- SAPs(SNPs)
                    PROSITE ----------------- PROSITE
                 Transcript ----------------- Transcript
                3bxl B 1819 KIYAAMMIMDYYKQSKV 1835
                                  1828

Chain B from PDB  Type:PROTEIN  Length:17
 aligned with CAC1E_RAT | Q07652 from UniProtKB/Swiss-Prot  Length:2222

    Alignment length:17
                                  1828       
           CAC1E_RAT   1819 KIYAAMMIMDYYKQSKV 1835
               SCOP domains ----------------- SCOP domains
               CATH domains ----------------- CATH domains
               Pfam domains ----------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------- SAPs(SNPs)
                    PROSITE ----------------- PROSITE
                 Transcript ----------------- Transcript
                3bxl B 1819 KIYAAMMIMDYYKQSKV 1835
                                  1828

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: EF Hand-like (739)

Superfamily: EF-hand (657)

Family: Calmodulin-like (356)

Protein domain: Calmodulin (152)

Norway rat (Rattus norvegicus) [TaxId: 10116] (15)

d3bxla_

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

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

Asymmetric Unit(hide GO term definitions)

Chain A (CALM1_RAT | P0DP29)

Chain A (CALM2_RAT | P0DP30)

Chain A (CALM3_RAT | P0DP31)

Chain B (CAC1E_RAT | Q07652)

molecular function
	GO:0005262	calcium channel activity	Enables the facilitated diffusion of a calcium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0008331	high voltage-gated calcium channel activity	Enables the transmembrane transfer of a calcium ion by a high voltage-gated channel. A high voltage-gated channel is a channel whose open state is dependent on high voltage across the membrane in which it is embedded.
	GO:0005216	ion channel activity	Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
	GO:0008332	low voltage-gated calcium channel activity	Enables the transmembrane transfer of a calcium ion by a low voltage-gated channel. A low voltage-gated channel is a channel whose open state is dependent on low voltage across the membrane in which it is embedded.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0005245	voltage-gated calcium channel activity	Enables the transmembrane transfer of a calcium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
	GO:0005244	voltage-gated ion channel activity	Enables the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
	GO:0070509	calcium ion import	The directed movement of calcium ions into a cell or organelle.
	GO:0070588	calcium ion transmembrane transport	A process in which a calcium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
	GO:0006816	calcium ion transport	The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0006811	ion transport	The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0086010	membrane depolarization during action potential	The process in which membrane potential changes in the depolarizing direction from the negative resting potential towards the positive membrane potential that will be the peak of the action potential.
	GO:0034765	regulation of ion transmembrane transport	Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
	GO:0055085	transmembrane transport	The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
	GO:0006810	transport	The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
	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:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0043204	perikaryon	The portion of the cell soma (neuronal cell body) that excludes the nucleus.
	GO:0005891	voltage-gated calcium channel complex	A protein complex that forms a transmembrane channel through which calcium ions may pass in response to changes in membrane potential.

Chain B (CAC1E_HUMAN | Q15878)

molecular function
	GO:0005262	calcium channel activity	Enables the facilitated diffusion of a calcium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0008331	high voltage-gated calcium channel activity	Enables the transmembrane transfer of a calcium ion by a high voltage-gated channel. A high voltage-gated channel is a channel whose open state is dependent on high voltage across the membrane in which it is embedded.
	GO:0005216	ion channel activity	Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0005245	voltage-gated calcium channel activity	Enables the transmembrane transfer of a calcium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
	GO:0005244	voltage-gated ion channel activity	Enables the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
	GO:0070588	calcium ion transmembrane transport	A process in which a calcium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
	GO:0006816	calcium ion transport	The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0007268	chemical synaptic transmission	The vesicular release of classical neurotransmitter molecules from a presynapse, across a chemical synapse, the subsequent activation of neurotransmitter receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
	GO:0006811	ion transport	The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0051899	membrane depolarization	The process in which membrane potential decreases with respect to its steady-state potential, usually from negative potential to a more positive potential. For example, the initial depolarization during the rising phase of an action potential is in the direction from the negative steady-state resting potential towards the positive membrane potential that will be the peak of the action potential.
	GO:0086010	membrane depolarization during action potential	The process in which membrane potential changes in the depolarizing direction from the negative resting potential towards the positive membrane potential that will be the peak of the action potential.
	GO:0050796	regulation of insulin secretion	Any process that modulates the frequency, rate or extent of the regulated release of insulin.
	GO:0034765	regulation of ion transmembrane transport	Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
	GO:0055085	transmembrane transport	The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
	GO:0006810	transport	The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
	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: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:0005891	voltage-gated calcium channel complex	A protein complex that forms a transmembrane channel through which calcium ions may pass in response to changes in membrane potential.

Asymmetric Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 3bxl)

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
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	3bxl
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	CALM1_RAT \| P0DP29
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	CALM2_RAT \| P0DP30
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	CALM3_RAT \| P0DP31
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3bxk	CRYSTAL STRUCTURE OF THE P/Q-TYPE CALCIUM CHANNEL IQ DOMAIN AND CA2+CALMODULIN COMPLEX

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 6)

Sites (6, 6)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 8)

Exons (5, 5)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (79, 99)

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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