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(-) Description

Title :  CRYSTAL STRUCTURE OF THE ECTODOMAIN OF HUMAN TRANSFERRIN RECEPTOR FITTED INTO A CRYO-EM RECONSTRUCTION OF CANINE PARVOVIRUS AND FELINE TRANSFERRIN RECEPTOR COMPLEX
 
Authors :  S. Hafenstein, V. A. Kostyuchenko, M. G. Rossmann
Date :  06 Nov 06  (Deposition) - 27 Mar 07  (Release) - 24 Feb 09  (Revision)
Method :  ELECTRON MICROSCOPY
Resolution :  27.00
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Transferrin Receptor, Virus-Receptor Complex, Metal Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  S. Hafenstein, L. M. Palermo, V. A. Kostyuchenko, C. Xiao, M. C. Morais, C. D. Nelson, V. D. Bowman, A. J. Battisti, P. R. Chipman, C. R. Parrish, M. G. Rossmann
Asymmetric Binding Of Transferrin Receptor To Parvovirus Capsids.
Proc. Natl. Acad. Sci. Usa V. 104 6585 2007
PubMed-ID: 17420467  |  Reference-DOI: 10.1073/PNAS.0701574104
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRANSFERRIN RECEPTOR PROTEIN 1
    ChainsA, B
    EngineeredYES
    Expression SystemCRICETULUS GRISEUS
    Expression System CommonCHINESE HAMSTER
    Expression System OrganOVARY CELLS
    Expression System PlasmidPCMVTFR
    Expression System Taxid10029
    Expression System Vector TypePLASMID
    FragmentTHE ECTODOMAIN OF HUMAN TRANSFERRIN RECEPTOR
    GeneTFRC
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymTFR1, TR, TFR, TRFR, CD71 ANTIGEN, T9, P90

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2NSU)

(-) Sites  (0, 0)

(no "Site" information available for 2NSU)

(-) SS Bonds  (4, 4)

Asymmetric/Biological Unit
No.Residues
1A:353 -A:363
2A:556 -A:558
3B:353 -B:363
4B:556 -B:558

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (4, 8)

Asymmetric/Biological Unit (4, 8)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_012737G142STFR1_HUMANPolymorphism3817672A/BS142S
2UniProtVAR_051806L212VTFR1_HUMANPolymorphism41301381A/BL212V
3UniProtVAR_051807G420STFR1_HUMANPolymorphism41295879A/BG420S
4UniProtVAR_051808R677HTFR1_HUMANPolymorphism41298067A/BR677H

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2NSU)

(-) Exons   (16, 32)

Asymmetric/Biological Unit (16, 32)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1eENST000003923961eENSE00001511658chr3:195808961-195808702260TFR1_HUMAN-00--
1.2ENST000003923962ENSE00002184017chr3:195803993-19580393559TFR1_HUMAN1-12120--
1.3ENST000003923963ENSE00000336901chr3:195802231-195802030202TFR1_HUMAN13-80680--
1.5ENST000003923965ENSE00001645063chr3:195800996-195800801196TFR1_HUMAN80-145662A:122-145
B:122-145
24
24
1.6ENST000003923966ENSE00001615518chr3:195799023-195798874150TFR1_HUMAN145-195512A:145-195
B:145-195
51
51
1.7bENST000003923967bENSE00000781814chr3:195798369-195798267103TFR1_HUMAN195-229352A:195-229
B:195-229
35
35
1.8bENST000003923968bENSE00000336905chr3:195796439-195796326114TFR1_HUMAN230-267382A:230-267
B:230-267
38
38
1.9ENST000003923969ENSE00000781817chr3:195795001-19579490399TFR1_HUMAN268-300332A:268-300
B:268-300
33
33
1.10bENST0000039239610bENSE00000781818chr3:195794528-195794389140TFR1_HUMAN301-347472A:301-347
B:301-347
47
47
1.11aENST0000039239611aENSE00000781819chr3:195792471-195792314158TFR1_HUMAN347-400542A:347-400
B:347-400
54
54
1.12ENST0000039239612ENSE00000781821chr3:195791299-195791180120TFR1_HUMAN400-440412A:400-440
B:400-440
41
41
1.14cENST0000039239614cENSE00001189905chr3:195789810-19578972586TFR1_HUMAN440-468292A:440-468
B:440-468
29
29
1.14dENST0000039239614dENSE00000781823chr3:195789516-19578945364TFR1_HUMAN469-490222A:469-490
B:469-490
22
22
1.15cENST0000039239615cENSE00000781824chr3:195787118-19578705168TFR1_HUMAN490-512232A:490-512
B:490-512
23
23
1.16bENST0000039239616bENSE00000781826chr3:195785503-19578544559TFR1_HUMAN513-532202A:513-532
B:513-532
20
20
1.17bENST0000039239617bENSE00000781827chr3:195785236-19578515582TFR1_HUMAN532-559282A:532-559
B:532-559
28
28
1.18cENST0000039239618cENSE00000781828chr3:195782172-195781951222TFR1_HUMAN560-633742A:560-633
B:560-633
74
74
1.19cENST0000039239619cENSE00000781829chr3:195780429-195780289141TFR1_HUMAN634-680472A:634-680
B:634-680
47
47
1.20aENST0000039239620aENSE00001405345chr3:195779055-1957763472709TFR1_HUMAN681-760802A:681-760
B:681-760
80
80

(-) 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    
   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:639
 aligned with TFR1_HUMAN | P02786 from UniProtKB/Swiss-Prot  Length:760

    Alignment length:639
                                   131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751         
           TFR1_HUMAN   122 LYWDDLKRKLSEKLDSTDFTGTIKLLNENSYVPREAGSQKDENLALYVENQFREFKLSKVWRDQHFVKIQVKDSAQNSVIIVDKNGRLVYLVENPGGYVAYSKAATVTGKLVHANFGTKKDFEDLYTPVNGSIVIVRAGKITFAEKVANAESLNAIGVLIYMDQTKFPIVNAELSFFGHAHLGTGDPYTPGFPSFNHTQFPPSRSSGLPNIPVQTISRAAAEKLFGNMEGDCPSDWKTDSTCRMVTSESKNVKLTVSNVLKEIKILNIFGVIKGFVEPDHYVVVGAQRDAWGPGAAKSGVGTALLLKLAQMFSDMVLKDGFQPSRSIIFASWSAGDFGSVGATEWLEGYLSSLHLKAFTYINLDKAVLGTSNFKVSASPLLYTLIEKTMQNVKHPVTGQFLYQDSNWASKVEKLTLDNAAFPFLAYSGIPAVSFCFCEDTDYPYLGTTMDTYKELIERIPELNKVARAAAEVAGQFVIKLTHDVELNLDYERYNSQLLSFVRDLNQYRADIKEMGLSLQWLYSARGDFFRATSRLTTDFGNAEKTDRFVMKKLNDRVMRVEYHFLSPYVSPKESPFRHVFWGSGSHTLPALLENLKLRKQNNGAFNETLFRNQLALATWTIQGAANALSGDVWDIDNEF 760
               SCOP domains d2nsua3 A:122-189,A:383-608                                         d2nsua2 A:190-382 Transferrin receptor ectodomain, apical domain                                                                                                                                 d2nsua3 A:122-189,A:383-608 Transferrin receptor ectodomain, protease-like domain                                                                                                                                                 d2nsua1 A:609-760 Transferrin receptor ectodomain, C-terminal domain                                                                                     SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh......eeeeeeeeeee.....eeeee......................eeeee.eee...................eeeee....hhhhhhhhhhhh....eeee...................................................eeeehhhhhhhhhhh.......................eeeeee.eeeeeeeeeee..ee........eeeee............hhhhhhhhhhhhhhhhhhhhh........eeee...hhhhhhhhhhhhhhhhh.hhhhheeeeee...........eeee...hhhhhhhhhh............................hhhhhhhh.....eeee...............hhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh.....................hhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) --------------------S---------------------------------------------------------------------V---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------S----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------H----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.5  PDB: A:122-145-------------------------------------------------Exon 1.7b  PDB: A:195-229          Exon 1.8b  PDB: A:230-267             Exon 1.9  PDB: A:268-300         Exon 1.10b  PDB: A:301-347 UniProt: 301-347    ----------------------------------------------------Exon 1.12  PDB: A:400-440                ----------------------------Exon 1.14d            ----------------------Exon 1.16b          ---------------------------Exon 1.18c  PDB: A:560-633 UniProt: 560-633                               Exon 1.19c  PDB: A:634-680 UniProt: 634-680    Exon 1.20a  PDB: A:681-760 UniProt: 681-760                                      Transcript 1 (1)
           Transcript 1 (2) -----------------------Exon 1.6  PDB: A:145-195 UniProt: 145-195          -------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.11a  PDB: A:347-400 UniProt: 347-400           ---------------------------------------Exon 1.14c  PDB: A:440-468   ---------------------Exon 1.15c             -------------------Exon 1.17b  PDB: A:532-559  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 2nsu A 122 LYWDDLKRKLSEKLDSTDFTSTIKLLNENSYVPREAGSQKDENLALYVENEFREFKLSKVWRDQHFVKIQVKDSAQNSVIIVDKNGRLVYLVENPGGYVAYSKAATVTGKLVHANFGTKKDFEDLYTPVNGSIVIVRAGKITFAEKVANAESLNAIGVLIYMDQTKFPIVNAELSFFGHAHLGTGDPYTPGFPSFNHTQFPPSRSSGLPNIPVQTISRAAAEKLFGNMEGDCPSDWKTDSTCRMVTSESKNVKLTVSNVLKEIKILNIFGVIKGFVEPDHYVVVGAQRDAWGPGAAKSGVGTALLLKLAQMFSDMVLKDGFQPSRSIIFASWSAGDFGSVGATEWLEGYLSSLHLKAFTYINLDKAVLGTSNFKVSASPLLYTLIEKTMQNVKHPVTGQFLYQDSNWASKVEKLTLDNAAFPFLAYSGIPAVSFCFCEDTDYPYLGTTMDTYKELIERIPELNKVARAAAEVAGQFVIKLTHDVELNLDYEEYNSQLLSFVRDLNQYRADIKEMGLSLQWLYSARGDFFRATSRLTTDFGNAEKTDRFVMKKLNDRVMRVEYHFLSPYVSPKESPFRHVFWGSGSHTLPALLENLKLRKQNNGAFNETLFRNQLALATWTIQGAANALSGDVWDIDNEF 760
                                   131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751         

Chain B from PDB  Type:PROTEIN  Length:639
 aligned with TFR1_HUMAN | P02786 from UniProtKB/Swiss-Prot  Length:760

    Alignment length:639
                                   131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751         
           TFR1_HUMAN   122 LYWDDLKRKLSEKLDSTDFTGTIKLLNENSYVPREAGSQKDENLALYVENQFREFKLSKVWRDQHFVKIQVKDSAQNSVIIVDKNGRLVYLVENPGGYVAYSKAATVTGKLVHANFGTKKDFEDLYTPVNGSIVIVRAGKITFAEKVANAESLNAIGVLIYMDQTKFPIVNAELSFFGHAHLGTGDPYTPGFPSFNHTQFPPSRSSGLPNIPVQTISRAAAEKLFGNMEGDCPSDWKTDSTCRMVTSESKNVKLTVSNVLKEIKILNIFGVIKGFVEPDHYVVVGAQRDAWGPGAAKSGVGTALLLKLAQMFSDMVLKDGFQPSRSIIFASWSAGDFGSVGATEWLEGYLSSLHLKAFTYINLDKAVLGTSNFKVSASPLLYTLIEKTMQNVKHPVTGQFLYQDSNWASKVEKLTLDNAAFPFLAYSGIPAVSFCFCEDTDYPYLGTTMDTYKELIERIPELNKVARAAAEVAGQFVIKLTHDVELNLDYERYNSQLLSFVRDLNQYRADIKEMGLSLQWLYSARGDFFRATSRLTTDFGNAEKTDRFVMKKLNDRVMRVEYHFLSPYVSPKESPFRHVFWGSGSHTLPALLENLKLRKQNNGAFNETLFRNQLALATWTIQGAANALSGDVWDIDNEF 760
               SCOP domains d2nsub3 B:122-189,B:383-608                                         d2nsub2 B:190-382 Transferrin receptor ectodomain, apical domain                                                                                                                                 d2nsub3 B:122-189,B:383-608 Transferrin receptor ectodomain, protease-like domain                                                                                                                                                 d2nsub1 B:609-760 Transferrin receptor ectodomain, C-terminal domain                                                                                     SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) -----------------------------------------------------------------------------------------------------PA-2nsuB03 B:223-346                                                                                                        -----------------------------------------------------Peptidase_M28-2nsuB01 B:400-579                                                                                                                                                     --------------------------------------------------------TFR_dimer-2nsuB05 B:636-752                                                                                          -------- Pfam domains (1)
           Pfam domains (2) -----------------------------------------------------------------------------------------------------PA-2nsuB04 B:223-346                                                                                                        -----------------------------------------------------Peptidase_M28-2nsuB02 B:400-579                                                                                                                                                     --------------------------------------------------------TFR_dimer-2nsuB06 B:636-752                                                                                          -------- Pfam domains (2)
         Sec.struct. author .hhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh......eeeeeeeeeee.....eeeee......................eeeee.eee...................eeeee....hhhhhhhhhhhh....eeee...................................................eeeehhhhhhhhhhh.......................eeeeee.eeeeeeeeeee..ee....eeeeeeeee............hhhhhhhhhhhhhhhhhhhhh......eeeeee...hhhhhhhhhhhhhhhhh.hhhhheeeeee...........eeee...hhhhhhhhhh............................hhhhhhhh.....eeee.......hhhhh...hhhhhhh...hhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh.....................hhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) --------------------S---------------------------------------------------------------------V---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------S----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------H----------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.5  PDB: B:122-145-------------------------------------------------Exon 1.7b  PDB: B:195-229          Exon 1.8b  PDB: B:230-267             Exon 1.9  PDB: B:268-300         Exon 1.10b  PDB: B:301-347 UniProt: 301-347    ----------------------------------------------------Exon 1.12  PDB: B:400-440                ----------------------------Exon 1.14d            ----------------------Exon 1.16b          ---------------------------Exon 1.18c  PDB: B:560-633 UniProt: 560-633                               Exon 1.19c  PDB: B:634-680 UniProt: 634-680    Exon 1.20a  PDB: B:681-760 UniProt: 681-760                                      Transcript 1 (1)
           Transcript 1 (2) -----------------------Exon 1.6  PDB: B:145-195 UniProt: 145-195          -------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.11a  PDB: B:347-400 UniProt: 347-400           ---------------------------------------Exon 1.14c  PDB: B:440-468   ---------------------Exon 1.15c             -------------------Exon 1.17b  PDB: B:532-559  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 2nsu B 122 LYWDDLKRKLSEKLDSTDFTSTIKLLNENSYVPREAGSQKDENLALYVENEFREFKLSKVWRDQHFVKIQVKDSAQNSVIIVDKNGRLVYLVENPGGYVAYSKAATVTGKLVHANFGTKKDFEDLYTPVNGSIVIVRAGKITFAEKVANAESLNAIGVLIYMDQTKFPIVNAELSFFGHAHLGTGDPYTPGFPSFNHTQFPPSRSSGLPNIPVQTISRAAAEKLFGNMEGDCPSDWKTDSTCRMVTSESKNVKLTVSNVLKEIKILNIFGVIKGFVEPDHYVVVGAQRDAWGPGAAKSGVGTALLLKLAQMFSDMVLKDGFQPSRSIIFASWSAGDFGSVGATEWLEGYLSSLHLKAFTYINLDKAVLGTSNFKVSASPLLYTLIEKTMQNVKHPVTGQFLYQDSNWASKVEKLTLDNAAFPFLAYSGIPAVSFCFCEDTDYPYLGTTMDTYKELIERIPELNKVARAAAEVAGQFVIKLTHDVELNLDYEEYNSQLLSFVRDLNQYRADIKEMGLSLQWLYSARGDFFRATSRLTTDFGNAEKTDRFVMKKLNDRVMRVEYHFLSPYVSPKESPFRHVFWGSGSHTLPALLENLKLRKQNNGAFNETLFRNQLALATWTIQGAANALSGDVWDIDNEF 760
                                   131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751         

   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 '|'

 Classification and Annotation

(-) SCOP Domains  (3, 6)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (3, 6)

Asymmetric/Biological Unit
(-)
Family: PA (15)
2aPA-2nsuB03B:223-346
2bPA-2nsuB04B:223-346

(-) Gene Ontology  (52, 52)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (TFR1_HUMAN | P02786)
molecular function
    GO:0030544    Hsp70 protein binding    Interacting selectively and non-covalently with Hsp70 proteins, any of a group of heat shock proteins around 70kDa in size.
    GO:0051087    chaperone binding    Interacting selectively and non-covalently with a chaperone protein, a class of proteins that bind to nascent or unfolded polypeptides and ensure correct folding or transport.
    GO:0003725    double-stranded RNA binding    Interacting selectively and non-covalently with double-stranded RNA.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    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:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
    GO:0004998    transferrin receptor activity    Combining selectively with transferrin, and delivering transferrin into the cell via endocytosis. Transferrin is a major iron carrier protein in vertebrates.
    GO:0033570    transferrin transmembrane transporter activity    Enables the transfer of transferrin from one side of a membrane to the other.
    GO:0001618    virus receptor activity    Combining with a virus component and mediating entry of the virus into the cell.
biological process
    GO:0006953    acute-phase response    An acute inflammatory response that involves non-antibody proteins whose concentrations in the plasma increase in response to infection or injury of homeothermic animals.
    GO:0007568    aging    A developmental process that is a deterioration and loss of function over time. Aging includes loss of functions such as resistance to disease, homeostasis, and fertility, as well as wear and tear. Aging includes cellular senescence, but is more inclusive. May precede death and may succeed developmental maturation (GO:0021700).
    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:0035690    cellular response to drug    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0006897    endocytosis    A vesicle-mediated transport process in which cells take up external materials or membrane constituents by the invagination of a small region of the plasma membrane to form a new membrane-bounded vesicle.
    GO:0097286    iron ion import    The directed movement of iron ions into a cell or organelle.
    GO:0030316    osteoclast differentiation    The process in which a relatively unspecialized monocyte acquires the specialized features of an osteoclast. An osteoclast is a specialized phagocytic cell associated with the absorption and removal of the mineralized matrix of bone tissue.
    GO:0045780    positive regulation of bone resorption    Any process that activates or increases the frequency, rate or extent of bone resorption.
    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.
    GO:0001558    regulation of cell growth    Any process that modulates the frequency, rate, extent or direction of cell growth.
    GO:0042127    regulation of cell proliferation    Any process that modulates the frequency, rate or extent of cell proliferation.
    GO:0046688    response to copper ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a copper ion stimulus.
    GO:0001666    response to hypoxia    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
    GO:0010035    response to inorganic substance    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an inorganic substance stimulus.
    GO:0010039    response to iron ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
    GO:0010042    response to manganese ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a manganese ion stimulus.
    GO:0007584    response to nutrient    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nutrient stimulus.
    GO:0010033    response to organic substance    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an organic substance stimulus.
    GO:0032526    response to retinoic acid    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a retinoic acid stimulus.
    GO:0033572    transferrin transport    The directed movement of transferrin into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0046718    viral entry into host cell    The process that occurs after viral attachment by which a virus, or viral nucleic acid, breaches the plasma membrane or cell envelope and enters the host cell. The process ends when the viral nucleic acid is released into the host cell cytoplasm.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
    GO:1990712    HFE-transferrin receptor complex    A protein complex containing at least HFE and a transferrin receptor (either TFR1/TFRC or TFR2), proposed to play a role in the sensing of transferrin-bound Fe (Fe2-Tf) on the plasma membrane to regulate hepcidin transcription.
    GO:0016323    basolateral plasma membrane    The region of the plasma membrane that includes the basal end and sides of the cell. Often used in reference to animal polarized epithelial membranes, where the basal membrane is the part attached to the extracellular matrix, or in plant cells, where the basal membrane is defined with respect to the zygotic axis.
    GO:0072562    blood microparticle    A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
    GO:0009986    cell surface    The external part of the cell wall and/or plasma membrane.
    GO:0005905    clathrin-coated pit    A part of the endomembrane system in the form of an invagination of a membrane upon which a clathrin coat forms, and that can be converted by vesicle budding into a clathrin-coated vesicle. Coated pits form on the plasma membrane, where they are involved in receptor-mediated selective transport of many proteins and other macromolecules across the cell membrane, in the trans-Golgi network, and on some endosomes.
    GO:0005768    endosome    A vacuole to which materials ingested by endocytosis are delivered.
    GO:0009897    external side of plasma membrane    The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
    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:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    GO:1903561    extracellular vesicle    Any vesicle that is part of the extracellular region.
    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:0005887    integral component of plasma membrane    The component of the plasma 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: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:0042470    melanosome    A tissue-specific, membrane-bounded cytoplasmic organelle within which melanin pigments are synthesized and stored. Melanosomes are synthesized in melanocyte cells.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
    GO:0048471    perinuclear region of cytoplasm    Cytoplasm situated near, or occurring around, the nucleus.
    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:0055037    recycling endosome    An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane.
    GO:0055038    recycling endosome membrane    The lipid bilayer surrounding a recycling endosome.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

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        TFR1_HUMAN | P027861cx8 1de4 1suv 3kas 3s9l 3s9m 3s9n

(-) Related Entries Specified in the PDB File

1cx8 ORIGINAL CRYSTAL STRUCTURE OF THE ECTODOMAIN OF HUMAN TRANSFERRIN RECEPTOR