1LB3 - JenaLib

Title :   STRUCTURE OF RECOMBINANT MOUSE L CHAIN FERRITIN AT 1.2 A RESOLUTION

Authors :   T. Granier, B. Langlois D'Estaintot, B. Gallois, J. -M. Chevalier, G. Precigoux, P. Santambrogio, P. Arosio

Date :   02 Apr 02 (Deposition) - 28 Jan 03 (Release) - 01 Feb 17 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.21

Chains :   Asym. Unit : A
Biol. Unit 1: A  (24x)

Keywords :   Iron Storage, Metal Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   T. Granier, B. Langlois D'Estaintot, B. Gallois, J. -M. Chevalier, G. Precigoux, P. Santambrogio, P. Arosio
Structural Description Of The Active Sites Of Mouse L-Chain Ferritin At 1. 2A Resolution
J. Biol. Inorg. Chem. V. 8 105 2003
PubMed-ID: 12459904 | Reference-DOI: 10.1007/S00775-002-0389-4

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 13)

Sites (13, 13)

Asymmetric Unit (13, 13)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLN A:10 , ASN A:11 , HOH A:204 , HOH A:209 , HOH A:310 , HOH A:372	BINDING SITE FOR RESIDUE SO4 A 187
02	AC2	SOFTWARE	SER A:13 , THR A:14 , GLU A:15 , ARG A:124	BINDING SITE FOR RESIDUE SO4 A 188
03	AC3	SOFTWARE	ASP A:84 , GLN A:86	BINDING SITE FOR RESIDUE CD A 717
04	AC4	SOFTWARE	GLU A:60 , GLU A:64 , HOH A:505 , HOH A:506 , CD A:722	BINDING SITE FOR RESIDUE CD A 718
05	AC5	SOFTWARE	GLU A:61 , GLU A:64 , HOH A:505 , HOH A:506 , CD A:718	BINDING SITE FOR RESIDUE CD A 722
06	AC6	SOFTWARE	GLU A:57 , GLU A:60 , HOH A:507	BINDING SITE FOR RESIDUE CD A 723
07	AC7	SOFTWARE	ASP A:131 , SER A:135 , HOH A:508 , HOH A:509 , HOH A:510 , HOH A:511 , HOH A:512	BINDING SITE FOR RESIDUE CD A 715
08	AC8	SOFTWARE	GLU A:134 , HOH A:452 , HOH A:513 , HOH A:514 , HOH A:515 , HOH A:520	BINDING SITE FOR RESIDUE CD A 716
09	AC9	SOFTWARE	HIS A:136 , HOH A:409 , HOH A:516 , HOH A:517 , HOH A:518	BINDING SITE FOR RESIDUE CD A 719
10	BC1	SOFTWARE	HIS A:118 , CYS A:130 , GLU A:134 , HOH A:435 , HOH A:452 , HOH A:513 , HOH A:515 , HOH A:519 , HOH A:520 , HOH A:521	BINDING SITE FOR RESIDUE CD A 720
11	BC2	SOFTWARE	HIS A:53 , GLU A:57 , HOH A:522 , HOH A:523 , HOH A:524	BINDING SITE FOR RESIDUE CD A 721
12	BC3	SOFTWARE	GLU A:49 , LYS A:147 , ASN A:150 , ARG A:180 , HOH A:239 , HOH A:348 , HOH A:349 , HOH A:380	BINDING SITE FOR RESIDUE GOL A 724
13	BC4	SOFTWARE	PHE A:39 , ARG A:56 , GLU A:67 , ARG A:68 , HOH A:229 , HOH A:250 , HOH A:442 , HOH A:443	BINDING SITE FOR RESIDUE GOL A 189

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (3, 3)

Asymmetric Unit (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FERRITIN_LIKE	PS50905	Ferritin-like diiron domain profile.	FRIL1_MOUSE	7-156	1	A:10-159
2	FERRITIN_1	PS00540	Ferritin iron-binding regions signature 1.	FRIL1_MOUSE	58-76	1	A:61-79
3	FERRITIN_2	PS00204	Ferritin iron-binding regions signature 2.	FRIL1_MOUSE	123-143	1	A:126-146

Biological Unit 1 (3, 72)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FERRITIN_LIKE	PS50905	Ferritin-like diiron domain profile.	FRIL1_MOUSE	7-156	24	A:10-159
2	FERRITIN_1	PS00540	Ferritin iron-binding regions signature 1.	FRIL1_MOUSE	58-76	24	A:61-79
3	FERRITIN_2	PS00204	Ferritin iron-binding regions signature 2.	FRIL1_MOUSE	123-143	24	A:126-146

Exons (0, 0)

Sequences/Alignments

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
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	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
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Chain A from PDB  Type:PROTEIN  Length:167
 aligned with FRIL1_MOUSE | P29391 from UniProtKB/Swiss-Prot  Length:183

    Alignment length:179
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172         
          FRIL1_MOUSE     3 SQIRQNYSTEVEAAVNRLVNLHLRASYTYLSLGFFFDRDDVALEGVGHFFRELAEEKREGAERLLEFQNDRGGRALFQDVQKPSQDEWGKTQEAMEAALAMEKNLNQALLDLHALGSARTDPHLCDFLESHYLDKEVKLIKKMGNHLTNLRRVAGPQPAQTGAPQGSLGEYLFERLTLK 181
               SCOP domains d1lb3a_ A: (Apo)ferritin                                                                                                                                                            SCOP domains
               CATH domains 1lb3A00 A:6-184  [code=1.20.1260.10, no name defined]                                                                                                                               CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.................hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh------------hhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----FERRITIN_LIKE  PDB: A:10-159 UniProt: 7-156                                                                                                           ------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------------------------FERRITIN_1         ----------------------------------------------FERRITIN_2           -------------------------------------- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1lb3 A   6 SQIRQNYSTEVEAAVNRLVNLHLRASYTYLSLGFFFDRDDVALEGVGHFFRELAEEKREGAERLLEFQNDRGGRALFQDVQKPSQDEWGKTQEAMEAALAMEKNLNQALLDLHALGSARADPHLCDFLESHYLDKEVKLIKKMGNHLTNLRRVA------------SLGEYLFERLTLK 184
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155   |     -      |175         
                                                                                                                                                                                   159          172

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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 (0, 0)

Gene Ontology (13, 13)

Asymmetric Unit(hide GO term definitions)

Chain A (FRIL1_MOUSE | P29391)

molecular function
	GO:0008199	ferric iron binding	Interacting selectively and non-covalently with ferric iron, Fe(III).
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	GO:0005506	iron ion binding	Interacting selectively and non-covalently with iron (Fe) ions.
	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:0006879	cellular iron ion homeostasis	Any process involved in the maintenance of an internal steady state of iron ions at the level of a cell.
	GO:0006826	iron ion transport	The directed movement of iron (Fe) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0006898	receptor-mediated endocytosis	An endocytosis process in which cell surface receptors ensure specificity of transport. A specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes; the plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, forming a transport vesicle containing the receptor-ligand complex and excluding most other plasma-membrane proteins. Receptor-mediated endocytosis generally occurs via clathrin-coated pits and vesicles.
cellular component
	GO:0071682	endocytic vesicle lumen	The volume enclosed by the membrane of an endocytic vesicle.
	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:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
	GO:0008043	intracellular ferritin complex	A ferritin complex located in the cell. Intracellular ferritin complexes contain 24 subunits, in a mixture of L (light) chains and H (heavy) chains.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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