2FOT - JenaLib

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

Asym./Biol. Unit (Jmol Viewer)

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

Title :   CRYSTAL STRUCTURE OF THE COMPLEX BETWEEN CALMODULIN AND ALPHAII-SPECTRIN

Authors :   M. Simonovic, Z. Zhang, C. D. Cianci, T. A. Steitz, J. S. Morrow

Date :   13 Jan 06 (Deposition) - 05 Sep 06 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.45

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

Keywords :   Calmodulin, Calmodulin Binding Domain, Spectrin, Metal Binding, Structural Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Simonovic, Z. Zhang, C. D. Cianci, T. A. Steitz, J. S. Morrow
Structure Of The Calmodulin Alphaii-Spectrin Complex Provides Insight Into The Regulation Of Cell Plasticity.
J. Biol. Chem. V. 281 34333 2006
PubMed-ID: 16945920 | Reference-DOI: 10.1074/JBC.M604613200
(for further references see the PDB file header)

Molecule 1 - CALMODULIN
	Chains	:	A
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913
	Synonym	:	CAM

Molecule 2 - ALPHA-II SPECTRIN SPECTRIN
	Chains	:	C
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PGEX2T
	Expression System Taxid	:	562
	Expression System Vector	:	PLASMID
	Fragment	:	CALMODULIN BINDING DOMAIN
	Gene	:	SPTAN1, SPTA2
	Mutation	:	YES
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	SPECTRIN, NON-ERYTHROID ALPHA CHAIN, SPECTRIN ALPHA CHAIN, FODRIN ALPHA CHAIN

		1	2
Asymmetric/Biological Unit	:	A	C

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (1, 4)

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

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASP A:20 , ASP A:22 , ASP A:24 , THR A:26 , GLU A:31 , HOH A:508	BINDING SITE FOR RESIDUE CA A 201
2	AC2	SOFTWARE	ASP A:56 , ASP A:58 , ASN A:60 , THR A:62 , GLU A:67 , HOH A:551	BINDING SITE FOR RESIDUE CA A 202
3	AC3	SOFTWARE	ASP A:93 , ASP A:95 , ASN A:97 , TYR A:99 , GLU A:104 , HOH A:515	BINDING SITE FOR RESIDUE CA A 203
4	AC4	SOFTWARE	ASP A:129 , ASP A:131 , ASP A:133 , GLN A:135 , GLU A:140	BINDING SITE FOR RESIDUE CA A 204

(no "SS Bond" information available for 2FOT)

(no "Cis Peptide Bond" information available for 2FOT)

(no "SAP(SNP)/Variant" information available for 2FOT)

Asymmetric/Biological 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.	CALM_BOVIN	8-43 44-79 81-116 117-149	4	A:7-42 A:43-73 A:81-115 A:117-147
2	EF_HAND_1	PS00018	EF-hand calcium-binding domain.	CALM_BOVIN	21-33 57-69 94-106 130-142	4	A:20-32 A:56-68 A:93-105 A:129-141

Asymmetric/Biological Unit (8, 8)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.7	ENSBTAT00000019411	7	ENSBTAE00000320796	chr18:53531460-53531549	90	CALM_BOVIN	1-1	1	0	-	-
1.8	ENSBTAT00000019411	8	ENSBTAE00000157831	chr18:53535790-53535820	31	CALM_BOVIN	2-12	11	1	A:6-11	6
1.9	ENSBTAT00000019411	9	ENSBTAE00000428812	chr18:53537981-53538124	144	CALM_BOVIN	12-60	49	1	A:11-59	49
1.10	ENSBTAT00000019411	10	ENSBTAE00000416563	chr18:53538265-53538371	107	CALM_BOVIN	60-95	36	1	A:59-94 (gaps)	36
1.11	ENSBTAT00000019411	11	ENSBTAE00000389868	chr18:53538749-53538884	136	CALM_BOVIN	96-141	46	1	A:95-140 (gaps)	46
1.12	ENSBTAT00000019411	12	ENSBTAE00000245541	chr18:53538967-53540533	1567	CALM_BOVIN	141-149	9	1	A:140-147	8

2.1a	ENST00000372731	1a	ENSE00001362268	chr9:131314869-131314975	107	SPTN1_HUMAN	-	0	0	-	-
2.3	ENST00000372731	3	ENSE00002152626	chr9:131329017-131329256	240	SPTN1_HUMAN	1-79	79	0	-	-
2.4	ENST00000372731	4	ENSE00001783994	chr9:131331051-131331176	126	SPTN1_HUMAN	80-121	42	0	-	-
2.5	ENST00000372731	5	ENSE00001627456	chr9:131336954-131337094	141	SPTN1_HUMAN	122-168	47	0	-	-
2.6	ENST00000372731	6	ENSE00001767008	chr9:131337478-131337624	147	SPTN1_HUMAN	169-217	49	0	-	-
2.7	ENST00000372731	7	ENSE00001750205	chr9:131339102-131339235	134	SPTN1_HUMAN	218-262	45	0	-	-
2.8	ENST00000372731	8	ENSE00001693277	chr9:131339408-131339552	145	SPTN1_HUMAN	262-310	49	0	-	-
2.9	ENST00000372731	9	ENSE00001796301	chr9:131339631-131339785	155	SPTN1_HUMAN	311-362	52	0	-	-
2.10	ENST00000372731	10	ENSE00001679538	chr9:131340389-131340524	136	SPTN1_HUMAN	362-407	46	0	-	-
2.11	ENST00000372731	11	ENSE00001597357	chr9:131341916-131342017	102	SPTN1_HUMAN	408-441	34	0	-	-
2.12a	ENST00000372731	12a	ENSE00001740794	chr9:131343201-131343338	138	SPTN1_HUMAN	442-487	46	0	-	-
2.13a	ENST00000372731	13a	ENSE00001651430	chr9:131344061-131344171	111	SPTN1_HUMAN	488-524	37	0	-	-
2.14	ENST00000372731	14	ENSE00001613637	chr9:131344758-131344835	78	SPTN1_HUMAN	525-550	26	0	-	-
2.15	ENST00000372731	15	ENSE00001790966	chr9:131344973-131345128	156	SPTN1_HUMAN	551-602	52	0	-	-
2.16	ENST00000372731	16	ENSE00001683382	chr9:131345356-131345560	205	SPTN1_HUMAN	603-671	69	0	-	-
2.17	ENST00000372731	17	ENSE00001704186	chr9:131346067-131346248	182	SPTN1_HUMAN	671-731	61	0	-	-
2.18	ENST00000372731	18	ENSE00001611067	chr9:131346561-131346804	244	SPTN1_HUMAN	732-813	82	0	-	-
2.19	ENST00000372731	19	ENSE00001612670	chr9:131347000-131347122	123	SPTN1_HUMAN	813-854	42	0	-	-
2.20	ENST00000372731	20	ENSE00001777576	chr9:131348027-131348244	218	SPTN1_HUMAN	854-926	73	0	-	-
2.21	ENST00000372731	21	ENSE00001776409	chr9:131349885-131349977	93	SPTN1_HUMAN	927-957	31	0	-	-
2.22	ENST00000372731	22	ENSE00001627979	chr9:131351088-131351222	135	SPTN1_HUMAN	958-1002	45	0	-	-
2.23	ENST00000372731	23	ENSE00001768241	chr9:131353756-131353904	149	SPTN1_HUMAN	1003-1052	50	0	-	-
2.24a	ENST00000372731	24a	ENSE00001628507	chr9:131355262-131355321	60	SPTN1_HUMAN	1052-1072	21	0	-	-
2.24c	ENST00000372731	24c	ENSE00001697865	chr9:131356454-131356652	199	SPTN1_HUMAN	1072-1138	67	0	-	-
2.25	ENST00000372731	25	ENSE00001643835	chr9:131360679-131360783	105	SPTN1_HUMAN	1139-1173	35	0	-	-
2.26a	ENST00000372731	26a	ENSE00001742935	chr9:131361242-131361265	24	SPTN1_HUMAN	1174-1181	8	0	-	-
2.27b	ENST00000372731	27b	ENSE00001636184	chr9:131362359-131362394	36	SPTN1_HUMAN	1182-1193	12	1	C:1189-1193	5
2.28	ENST00000372731	28	ENSE00001614825	chr9:131365822-131365869	48	SPTN1_HUMAN	1194-1209	16	1	C:1194-1209	16
2.29	ENST00000372731	29	ENSE00001614795	chr9:131366605-131366696	92	SPTN1_HUMAN	1210-1240	31	1	C:1210-1211	2
2.30	ENST00000372731	30	ENSE00001724801	chr9:131367313-131367457	145	SPTN1_HUMAN	1240-1288	49	0	-	-
2.31	ENST00000372731	31	ENSE00001693184	chr9:131367575-131367756	182	SPTN1_HUMAN	1289-1349	61	0	-	-
2.32	ENST00000372731	32	ENSE00001599564	chr9:131369883-131369982	100	SPTN1_HUMAN	1349-1382	34	0	-	-
2.33b	ENST00000372731	33b	ENSE00001749734	chr9:131370131-131370328	198	SPTN1_HUMAN	1383-1448	66	0	-	-
2.34	ENST00000372731	34	ENSE00001720104	chr9:131370409-131370555	147	SPTN1_HUMAN	1449-1497	49	0	-	-
2.35	ENST00000372731	35	ENSE00001654893	chr9:131371153-131371256	104	SPTN1_HUMAN	1498-1532	35	0	-	-
2.36a	ENST00000372731	36a	ENSE00001729156	chr9:131371401-131371563	163	SPTN1_HUMAN	1532-1586	55	0	-	-
2.39	ENST00000372731	39	ENSE00001644730	chr9:131373993-131374124	132	SPTN1_HUMAN	1587-1630	44	0	-	-
2.40b	ENST00000372731	40b	ENSE00001771137	chr9:131374388-131374525	138	SPTN1_HUMAN	1631-1676	46	0	-	-
2.41	ENST00000372731	41	ENSE00001695986	chr9:131375660-131375764	105	SPTN1_HUMAN	1677-1711	35	0	-	-
2.42b	ENST00000372731	42b	ENSE00001697185	chr9:131377911-131378119	209	SPTN1_HUMAN	1712-1781	70	0	-	-
2.43	ENST00000372731	43	ENSE00000806992	chr9:131379919-131380039	121	SPTN1_HUMAN	1781-1821	41	0	-	-
2.44	ENST00000372731	44	ENSE00000730702	chr9:131380266-131380387	122	SPTN1_HUMAN	1822-1862	41	0	-	-
2.45	ENST00000372731	45	ENSE00000730706	chr9:131381150-131381282	133	SPTN1_HUMAN	1862-1906	45	0	-	-
2.46a	ENST00000372731	46a	ENSE00000806993	chr9:131383437-131383535	99	SPTN1_HUMAN	1907-1939	33	0	-	-
2.47a	ENST00000372731	47a	ENSE00000730597	chr9:131386607-131386766	160	SPTN1_HUMAN	1940-1993	54	0	-	-
2.47c	ENST00000372731	47c	ENSE00000730575	chr9:131387382-131387458	77	SPTN1_HUMAN	1993-2018	26	0	-	-
2.48b	ENST00000372731	48b	ENSE00000730564	chr9:131388048-131388257	210	SPTN1_HUMAN	2019-2088	70	0	-	-
2.49	ENST00000372731	49	ENSE00000730551	chr9:131388670-131388966	297	SPTN1_HUMAN	2089-2187	99	0	-	-
2.50a	ENST00000372731	50a	ENSE00001215160	chr9:131389665-131389777	113	SPTN1_HUMAN	2188-2225	38	0	-	-
2.51	ENST00000372731	51	ENSE00001752389	chr9:131390204-131390221	18	SPTN1_HUMAN	2225-2231	7	0	-	-
2.53a	ENST00000372731	53a	ENSE00000730520	chr9:131392600-131392654	55	SPTN1_HUMAN	2231-2249	19	0	-	-
2.54	ENST00000372731	54	ENSE00000730509	chr9:131394406-131394602	197	SPTN1_HUMAN	2250-2315	66	0	-	-
2.55	ENST00000372731	55	ENSE00000730493	chr9:131394710-131394763	54	SPTN1_HUMAN	2315-2333	19	0	-	-
2.56	ENST00000372731	56	ENSE00000730476	chr9:131394851-131394997	147	SPTN1_HUMAN	2333-2382	50	0	-	-
2.57	ENST00000372731	57	ENSE00000806994	chr9:131395087-131395234	148	SPTN1_HUMAN	2382-2431	50	0	-	-
2.58b	ENST00000372731	58b	ENSE00001412968	chr9:131395488-131395941	454	SPTN1_HUMAN	2432-2472	41	0	-	-

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:134
 aligned with CALM_BOVIN | P62157 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:142
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146  
          CALM_BOVIN      7 EEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA  148
               SCOP domains d2fota_ A: Calmodulin                                                                                                                          SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhh........eehhhhhhhh.-------hhhhhhhhhhhhh.......hhhhhhhhhhhhh..-hhhhhhhhhhhhh.......hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -EF_HAND_2  PDB: A:7-42 UniProt: 8-43EF_HAND_2  PDB: A:43-73             -EF_HAND_2  PDB: A:81-115            EF_HAND_2  PDB: A:117-147        PROSITE (1)
                PROSITE (2) --------------EF_HAND_1    -----------------------EF_HAND_1    ------------------------EF_HAND_1    -----------------------EF_HAND_1    ------ PROSITE (2)
           Transcript 1 (1) 1.8   -----------------------------------------------Exon 1.10  PDB: A:59-94 (gaps)      Exon 1.11  PDB: A:95-140 (gaps)               ------- Transcript 1 (1)
           Transcript 1 (2) -----Exon 1.9  PDB: A:11-59 UniProt: 12-60            --------------------------------------------------------------------------------1.12     Transcript 1 (2)
                2fot A    6 EEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMA-------SEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEK-TDEEVDEMIREADIDGDGQVNYEEFVQMMTA  147
                                    15        25        35        45        55        65       | -     |  85        95       105       115 |     125       135       145  
                                                                                              73      81                               115 |                              
                                                                                                                                         117

Chain C from PDB  Type:PROTEIN  Length:23
 aligned with SPTN1_HUMAN | Q13813 from UniProtKB/Swiss-Prot  Length:2472

    Alignment length:26
                                  1198      1208      
         SPTN1_HUMAN   1189 ASPWKSARLMVHTVATFNSIKELNER 1214
               SCOP domains -------------------------- SCOP domains
               CATH domains -------------------------- CATH domains
               Pfam domains -------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhh---hh Sec.struct. author
                 SAPs(SNPs) -------------------------- SAPs(SNPs)
                    PROSITE -------------------------- PROSITE
               Transcript 2 2.27bExon 2.28       2.29  Transcript 2
                2fot C 1189 ASPWKSARLMVHTVATFNSIK---ER 1211
                                  1198      1208|   | 
                                             1209   | 
                                                 1210

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/Biological 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)

Cow (Bos taurus) [TaxId: 9913] (16)

d2fota_

(no "CATH Domain" information available for 2FOT)

(no "Pfam Domain" information available for 2FOT)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (CALM_BOVIN | P62157)

molecular function
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	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).
biological process
	GO:0038095	Fc-epsilon receptor signaling pathway	A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
	GO:0000086	G2/M transition of mitotic cell cycle	The mitotic cell cycle transition by which a cell in G2 commits to M phase. The process begins when the kinase activity of M cyclin/CDK complex reaches a threshold high enough for the cell cycle to proceed. This is accomplished by activating a positive feedback loop that results in the accumulation of unphosphorylated and active M cyclin/CDK complex.
	GO:0006936	muscle contraction	A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis.
	GO:0060315	negative regulation of ryanodine-sensitive calcium-release channel activity	Any process that decreases the activity of a ryanodine-sensitive calcium-release channel. The ryanodine-sensitive calcium-release channel catalyzes the transmembrane transfer of a calcium ion by a channel that opens when a ryanodine class ligand has been bound by the channel complex or one of its constituent parts.
	GO:0043388	positive regulation of DNA binding	Any process that increases the frequency, rate or extent of DNA binding. DNA binding is any process in which a gene product interacts selectively with DNA (deoxyribonucleic acid).
	GO:0060316	positive regulation of ryanodine-sensitive calcium-release channel activity	Any process that increases the activity of a ryanodine-sensitive calcium-release channel. The ryanodine-sensitive calcium-release channel catalyzes the transmembrane transfer of a calcium ion by a channel that opens when a ryanodine class ligand has been bound by the channel complex or one of its constituent parts.
	GO:0010880	regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum	Any process that modulates the rate, frequency or extent of release of sequestered calcium ion into cytosol by the sarcoplasmic reticulum, the process in which the release of sequestered calcium ion by sarcoplasmic reticulum into cytosol occurs via calcium release channels.
	GO:0022400	regulation of rhodopsin mediated signaling pathway	Any process that modulates the frequency, rate or extent of rhodopsin-mediated signaling.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005856	cytoskeleton	Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0005819	spindle	The array of microtubules and associated molecules that forms between opposite poles of a eukaryotic cell during mitosis or meiosis and serves to move the duplicated chromosomes apart.
	GO:0000922	spindle pole	Either of the ends of a spindle, where spindle microtubules are organized; usually contains a microtubule organizing center and accessory molecules, spindle microtubules and astral microtubules.
	GO:0008076	voltage-gated potassium channel complex	A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential.

Chain C (SPTN1_HUMAN | Q13813)

molecular function
	GO:0005088	Ras guanyl-nucleotide exchange factor activity	Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Ras superfamily. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
	GO:0003779	actin binding	Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0005516	calmodulin binding	Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0047485	protein N-terminus binding	Interacting selectively and non-covalently with a protein N-terminus, the end of any peptide chain at which the 2-amino (or 2-imino) 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:0032403	protein complex binding	Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0005200	structural constituent of cytoskeleton	The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
	GO:0019905	syntaxin binding	Interacting selectively and non-covalently with a syntaxin, a SNAP receptor involved in the docking of synaptic vesicles at the presynaptic zone of a synapse.
biological process
	GO:0006888	ER to Golgi vesicle-mediated transport	The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
	GO:0000165	MAPK cascade	An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.
	GO:0031532	actin cytoskeleton reorganization	A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of constituent parts of cytoskeletal structures comprising actin filaments and their associated proteins.
	GO:0051693	actin filament capping	The binding of a protein or protein complex to the end of an actin filament, thus preventing the addition, exchange or removal of further actin subunits.
	GO:0007411	axon guidance	The chemotaxis process that directs the migration of an axon growth cone to a specific target site in response to a combination of attractive and repulsive cues.
	GO:0043547	positive regulation of GTPase activity	Any process that activates or increases the activity of a GTPase.
cellular component
	GO:0005938	cell cortex	The region of a cell that lies just beneath the plasma membrane and often, but not always, contains a network of actin filaments and associated proteins.
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005856	cytoskeleton	Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
	GO:1903561	extracellular vesicle	Any vesicle that is part of the extracellular region.
	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:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0015630	microtubule cytoskeleton	The part of the cytoskeleton (the internal framework of a cell) composed of microtubules and associated proteins.
	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:0043234	protein complex	A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
	GO:0008091	spectrin	Membrane associated dimeric protein (240 and 220 kDa) of erythrocytes. Forms a complex with ankyrin, actin and probably other components of the membrane cytoskeleton, so that there is a mesh of proteins underlying the plasma membrane, potentially restricting the lateral mobility of integral proteins.

Asymmetric/Biological Unit
	Complete Structure
		Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
		WebMol \| AstexViewer[tm]@PDBe (Java Applets, require no local installation except for Java; loading may be slow)
		STRAP (Java WebStart application, automatic local installation, requires Java; full application with system access!)
		RasMol (require local installation)
		Molscript (VRML) (requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)

	Ligands, Modified Residues, Ions
		CA	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]

	Sites
		AC1	[ RasMol ]	+environment [ RasMol ]
		AC2	[ RasMol ]	+environment [ RasMol ]
		AC3	[ RasMol ]	+environment [ RasMol ]
		AC4	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 2fot)

Jmol
	protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick [ Asym./Biol. Unit PNG format \| Asym./Biol. Unit - sites PNG format ](automatic orientation, automatically generated)
Molscript
	protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick [ mono PDF format \| stereo PDF format ](default orientation, automatically generated)

Access by PDB/NDB ID
	2fot
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	CALM_BOVIN \| P62157
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	SPTN1_HUMAN \| Q13813
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	(no 'Enzyme Classificator' available)
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	CALM_BOVIN \| P62157
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	SPTN1_HUMAN \| Q13813
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 4)

Sites (4, 4)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 8)

Exons (8, 8)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (39, 45)

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