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Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Title :   MACHUPO VIRUS GP1 BOUND TO HUMAN TRANSFERRIN RECEPTOR 1

Authors :   J. Abraham, K. D. Corbett, S. C. Harrison

Date :   19 Oct 09 (Deposition) - 09 Mar 10 (Release) - 15 Jun 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.40

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

Keywords :   Machupo Virus, Transferrin Receptor 1, Arenavirus, Cell Membrane, Disulfide Bond, Endocytosis, Glycoprotein, Host-Virus Interaction, Receptor, Secreted, Transmembrane, Viral Protein-Endocytosis Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. Abraham, K. D. Corbett, M. Farzan, H. Choe, S. C. Harrison
Structural Basis For Receptor Recognition By New World Hemorrhagic Fever Arenaviruses.
Nat. Struct. Mol. Biol. V. 17 438 2010
PubMed-ID: 20208545 | Reference-DOI: 10.1038/NSMB.1772

Molecule 1 - TRANSFERRIN RECEPTOR PROTEIN 1
	Chains	:	A
	Engineered	:	YES
	Expression System	:	CRICETULUS GRISEUS
	Expression System Common	:	CHINESE HAMSTER
	Expression System Taxid	:	10029
	Fragment	:	RESIDUES 121-760
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	TFR1, TFR, TR, TRFR, T9, P90, TRANSFERRIN RECEPTOR PROTEIN 1, SERUM FORM, STFR

Molecule 2 - GLYCOPROTEIN
	Chains	:	B
	Engineered	:	YES
	Expression System	:	SPODOPTERA FRUGIPERDA
	Expression System Common	:	FALL ARMYWORM
	Expression System Plasmid	:	PFASTBAC1
	Expression System Taxid	:	7108
	Fragment	:	RESIDUES 83-244
	Organism Scientific	:	MACHUPO VIRUS
	Organism Taxid	:	11628
	Strain	:	CARVALLO

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (6, 21)

No.	Name	Count	Type	Full Name
1	BMA	1	Ligand/Ion	BETA-D-MANNOSE
2	FUC	1	Ligand/Ion	ALPHA-L-FUCOSE
3	K	1	Ligand/Ion	POTASSIUM ION
4	MAN	4	Ligand/Ion	ALPHA-D-MANNOSE
5	NAG	8	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
6	PO4	6	Ligand/Ion	PHOSPHATE ION

Biological Unit 1 (5, 40)

No.	Name	Count	Type	Full Name
1	BMA	2	Ligand/Ion	BETA-D-MANNOSE
2	FUC	2	Ligand/Ion	ALPHA-L-FUCOSE
3	K	-1	Ligand/Ion	POTASSIUM ION
4	MAN	8	Ligand/Ion	ALPHA-D-MANNOSE
5	NAG	16	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
6	PO4	12	Ligand/Ion	PHOSPHATE ION

Asymmetric Unit (21, 21)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	HOH A:95 , ASN A:251	BINDING SITE FOR RESIDUE NAG A 1001
02	AC2	SOFTWARE	HOH A:55 , ASN A:727 , THR A:729 , HOH A:802	BINDING SITE FOR RESIDUE NAG A 1011
03	AC3	SOFTWARE	HOH A:87 , TYR A:123 , TRP A:124 , HIS A:603 , GLN B:238	BINDING SITE FOR RESIDUE PO4 A 2
04	AC4	SOFTWARE	ASP A:400 , HIS A:401 , LYS A:672 , LYS A:673 , ASP A:676 , ARG A:680 , HOH A:799 , HOH A:836	BINDING SITE FOR RESIDUE PO4 A 3
05	AC5	SOFTWARE	HOH A:107 , LYS A:495 , SER A:497 , SER A:554 , PHE A:555	BINDING SITE FOR RESIDUE PO4 A 4
06	AC6	SOFTWARE	TRP A:124 , ASN A:512 , HOH A:842	BINDING SITE FOR RESIDUE PO4 A 6
07	AC7	SOFTWARE	LEU A:122 , GLN A:443	BINDING SITE FOR RESIDUE K A 1
08	AC8	SOFTWARE	LYS A:439 , ASN B:95 , SER B:97	BINDING SITE FOR RESIDUE NAG B 1001
09	AC9	SOFTWARE	ASN B:137 , GLN B:219 , CYS B:220 , ASP B:222	BINDING SITE FOR RESIDUE NAG B 1011
10	BC1	SOFTWARE	ASN B:166 , THR B:168 , NAG B:1022 , FUC B:1023	BINDING SITE FOR RESIDUE NAG B 1021
11	BC2	SOFTWARE	NAG B:1021 , FUC B:1023	BINDING SITE FOR RESIDUE NAG B 1022
12	BC3	SOFTWARE	NAG B:1021 , NAG B:1022	BINDING SITE FOR RESIDUE FUC B 1023
13	BC4	SOFTWARE	LEU B:118 , ASN B:178 , SER B:180 , ASP B:184 , TYR B:214 , NAG B:1032	BINDING SITE FOR RESIDUE NAG B 1031
14	BC5	SOFTWARE	ALA B:182 , GLY B:210 , NAG B:1031 , BMA B:1033 , MAN B:1035 , MAN B:1037	BINDING SITE FOR RESIDUE NAG B 1032
15	BC6	SOFTWARE	PHE A:187 , NAG B:1032 , MAN B:1034 , MAN B:1035	BINDING SITE FOR RESIDUE BMA B 1033
16	BC7	SOFTWARE	GLU A:383 , BMA B:1033	BINDING SITE FOR RESIDUE MAN B 1034
17	BC8	SOFTWARE	GLN A:185 , NAG B:1032 , BMA B:1033 , MAN B:1036 , MAN B:1037	BINDING SITE FOR RESIDUE MAN B 1035
18	BC9	SOFTWARE	ASP B:183 , MAN B:1035	BINDING SITE FOR RESIDUE MAN B 1036
19	CC1	SOFTWARE	HOH A:854 , GLY B:210 , LYS B:211 , HOH B:263 , NAG B:1032 , MAN B:1035	BINDING SITE FOR RESIDUE MAN B 1037
20	CC2	SOFTWARE	ASP B:227 , GLY B:230 , VAL B:231 , ASN B:232 , HIS B:233	BINDING SITE FOR RESIDUE PO4 B 1
21	CC3	SOFTWARE	LYS B:190 , ARG B:193 , ARG B:197 , ASP B:205	BINDING SITE FOR RESIDUE PO4 B 5

Asymmetric Unit

No.	Residues
1	A:353	-	A:363
2	B:92	-	B:237
3	B:135	-	B:164
4	B:207	-	B:213
5	B:220	-	B:229

Asymmetric Unit

No.	Residues
1	Glu B:171	-	Gly B:172

Asymmetric Unit (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_012737	G	142	S	TFR1_HUMAN	Polymorphism	3817672	A	S	142	S
2	UniProt	VAR_051806	L	212	V	TFR1_HUMAN	Polymorphism	41301381	A	L	212	V
3	UniProt	VAR_051807	G	420	S	TFR1_HUMAN	Polymorphism	41295879	A	G	420	S
4	UniProt	VAR_051808	R	677	H	TFR1_HUMAN	Polymorphism	41298067	A	R	677	H

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

Biological Unit 1 (4, 8)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_012737	G	142	S	TFR1_HUMAN	Polymorphism	3817672	A	S	142	S
2	UniProt	VAR_051806	L	212	V	TFR1_HUMAN	Polymorphism	41301381	A	L	212	V
3	UniProt	VAR_051807	G	420	S	TFR1_HUMAN	Polymorphism	41295879	A	G	420	S
4	UniProt	VAR_051808	R	677	H	TFR1_HUMAN	Polymorphism	41298067	A	R	677	H

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

(no "PROSITE Motif" information available for 3KAS)

Asymmetric Unit (16, 16)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1e	ENST00000392396	1e	ENSE00001511658	chr3:195808961-195808702	260	TFR1_HUMAN	-	0	0	-	-
1.2	ENST00000392396	2	ENSE00002184017	chr3:195803993-195803935	59	TFR1_HUMAN	1-12	12	0	-	-
1.3	ENST00000392396	3	ENSE00000336901	chr3:195802231-195802030	202	TFR1_HUMAN	13-80	68	0	-	-
1.5	ENST00000392396	5	ENSE00001645063	chr3:195800996-195800801	196	TFR1_HUMAN	80-145	66	1	A:121-145	25
1.6	ENST00000392396	6	ENSE00001615518	chr3:195799023-195798874	150	TFR1_HUMAN	145-195	51	1	A:145-195	51
1.7b	ENST00000392396	7b	ENSE00000781814	chr3:195798369-195798267	103	TFR1_HUMAN	195-229	35	1	A:195-229	35
1.8b	ENST00000392396	8b	ENSE00000336905	chr3:195796439-195796326	114	TFR1_HUMAN	230-267	38	1	A:230-267	38
1.9	ENST00000392396	9	ENSE00000781817	chr3:195795001-195794903	99	TFR1_HUMAN	268-300	33	1	A:268-300	33
1.10b	ENST00000392396	10b	ENSE00000781818	chr3:195794528-195794389	140	TFR1_HUMAN	301-347	47	1	A:301-347 (gaps)	47
1.11a	ENST00000392396	11a	ENSE00000781819	chr3:195792471-195792314	158	TFR1_HUMAN	347-400	54	1	A:347-400	54
1.12	ENST00000392396	12	ENSE00000781821	chr3:195791299-195791180	120	TFR1_HUMAN	400-440	41	1	A:400-440	41
1.14c	ENST00000392396	14c	ENSE00001189905	chr3:195789810-195789725	86	TFR1_HUMAN	440-468	29	1	A:440-468	29
1.14d	ENST00000392396	14d	ENSE00000781823	chr3:195789516-195789453	64	TFR1_HUMAN	469-490	22	1	A:469-490	22
1.15c	ENST00000392396	15c	ENSE00000781824	chr3:195787118-195787051	68	TFR1_HUMAN	490-512	23	1	A:490-512	23
1.16b	ENST00000392396	16b	ENSE00000781826	chr3:195785503-195785445	59	TFR1_HUMAN	513-532	20	1	A:513-532	20
1.17b	ENST00000392396	17b	ENSE00000781827	chr3:195785236-195785155	82	TFR1_HUMAN	532-559	28	1	A:532-559	28
1.18c	ENST00000392396	18c	ENSE00000781828	chr3:195782172-195781951	222	TFR1_HUMAN	560-633	74	1	A:560-633	74
1.19c	ENST00000392396	19c	ENSE00000781829	chr3:195780429-195780289	141	TFR1_HUMAN	634-680	47	1	A:634-680	47
1.20a	ENST00000392396	20a	ENSE00001405345	chr3:195779055-195776347	2709	TFR1_HUMAN	681-760	80	1	A:681-756	76

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:633
 aligned with TFR1_HUMAN | P02786 from UniProtKB/Swiss-Prot  Length:760

    Alignment length:636
                                   130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730       740       750      
           TFR1_HUMAN   121 RLYWDDLKRKLSEKLDSTDFTGTIKLLNENSYVPREAGSQKDENLALYVENQFREFKLSKVWRDQHFVKIQVKDSAQNSVIIVDKNGRLVYLVENPGGYVAYSKAATVTGKLVHANFGTKKDFEDLYTPVNGSIVIVRAGKITFAEKVANAESLNAIGVLIYMDQTKFPIVNAELSFFGHAHLGTGDPYTPGFPSFNHTQFPPSRSSGLPNIPVQTISRAAAEKLFGNMEGDCPSDWKTDSTCRMVTSESKNVKLTVSNVLKEIKILNIFGVIKGFVEPDHYVVVGAQRDAWGPGAAKSGVGTALLLKLAQMFSDMVLKDGFQPSRSIIFASWSAGDFGSVGATEWLEGYLSSLHLKAFTYINLDKAVLGTSNFKVSASPLLYTLIEKTMQNVKHPVTGQFLYQDSNWASKVEKLTLDNAAFPFLAYSGIPAVSFCFCEDTDYPYLGTTMDTYKELIERIPELNKVARAAAEVAGQFVIKLTHDVELNLDYERYNSQLLSFVRDLNQYRADIKEMGLSLQWLYSARGDFFRATSRLTTDFGNAEKTDRFVMKKLNDRVMRVEYHFLSPYVSPKESPFRHVFWGSGSHTLPALLENLKLRKQNNGAFNETLFRNQLALATWTIQGAANALSGDVWDI 756
               SCOP domains d3kasa1 A:121-189,A:383-608                                          d3kasa2 A:190-382 Transferrin receptor ectodomain, apical domain                                                                                                                                 d3kasa1 A:121-189,A:383-608 Transferrin receptor ectodomain, protease-like domain                                                                                                                                                 d3kasa3 A:609-756 Transferrin receptor ectodomain, C-terminal domain                                                                                 SCOP domains
               CATH domains 3kasA01 A:121-194,A:380-613 Zn peptidases                                 --3kasA02 A:197-377  [code=3.50.30.30, no name defined]                                                                                                                                --3kasA01 A:121-194,A:380-613 Zn peptidases                                                                                                                                                                                                 3kasA03 A:614-755  [code=1.20.930.40, no name defined]                                                                                        - CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------PA-3kasA02 A:223-346                                                                                                        -----------------------------------------------------Peptidase_M28-3kasA01 A:400-579                                                                                                                                                     --------------------------------------------------------TFR_dimer-3kasA03 A:636-752                                                                                          ---- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhh.hhhhhhhhh...........hhhhhhhhhhhhhhhhhhh..eeeeeeeeeeeee......eeeeee....eeeeee.....ee....eeeee.eee....hhhhhhh........eeeee....hhhhhhhhhhh....eeeee................ee...............---...............eee.hhhhhhhhhh.eeee.hhhhh.....eeee...eeeeeee..eeeeeeeeeeeeee....eeeeeeeeeee..........hhhhhhhhhhhhhhhhhhhhh......eeeeeeee.hhhhhhhhhhhhhhhh..hhhh.eeeeee.........eeeeee...hhhhhhhhhh...............hhhhhh.......hhhhhhhh....eeeeeee.............hhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh.....................hhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------S---------------------------------------------------------------------V---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------S----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------H------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.5  PDB: A:121-145 -------------------------------------------------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 (gaps)              ----------------------------------------------------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:681-756 UniProt: 681-760 [INCOMPLETE]                     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)
                 3kas A 121 RLYWDDLKRKLSEKLDSTDFTSTIKLLNENSYVPREAGSQKDENLALYVENQFREFKLSKVWRDQHFVKIQVKDSAQNSVIIVDKNGRLVYLVENPGGYVAYSKAATVTGKLVHANFGTKKDFEDLYTPVNGSIVIVRAGKITFAEKVANAESLNAIGVLIYMDQTKFPIVNAELSFFGHAHLGTGDPYTPGFPS---TQFPPSRSSGLPNIPVQTISRAAAEKLFGNMEGDCPSDWKTDSTCRMVTSESKNVKLTVSNVLKEIKILNIFGVIKGFVEPDHYVVVGAQRDAWGPGAAKSGVGTALLLKLAQMFSDMVLKDGFQPSRSIIFASWSAGDFGSVGATEWLEGYLSSLHLKAFTYINLDKAVLGTSNFKVSASPLLYTLIEKTMQNVKHPVTGQFLYQDSNWASKVEKLTLDNAAFPFLAYSGIPAVSFCFCEDTDYPYLGTTMDTYKELIERIPELNKVARAAAEVAGQFVIKLTHDVELNLDYERYNSQLLSFVRDLNQYRADIKEMGLSLQWLYSARGDFFRATSRLTTDFGNAEKTDRFVMKKLNDRVMRVEYHFLSPYVSPKESPFRHVFWGSGSHTLPALLENLKLRKQNNGAFNETLFRNQLALATWTIQGAANALSGDVWDI 756
                                   130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310    |  320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730       740       750      
                                                                                                                                                                                                                            315 319

Chain B from PDB  Type:PROTEIN  Length:156
 aligned with Q8AZ57_MACHU | Q8AZ57 from UniProtKB/TrEMBL  Length:496

    Alignment length:156
                                    95       105       115       125       135       145       155       165       175       185       195       205       215       225       235      
         Q8AZ57_MACHU    86 NELPSLCMLNNSFYYMRGGVNTFLIRVSDISVLMKEYDVSIYEPEDLGNCLNKSDSSWAIHWFSNALGHDWLMDPPMLCRNKTKKEGSNIQFNISKADDARVYGKKIRNGMRHLFRGFHDPCEEGKVCYLTINQCGDPSSFDYCGVNHLSKCQFDH 241
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains Arena_glycoprot-3kasB01 B:86-241                                                                                                                             Pfam domains
         Sec.struct. author ....eeeeee..eeeeee..eeeeeeee..........eee.hhhhhhhhh.hhhhhhhhhhhhhhhh........eee..........eeee...hhhhhhhhhhhhhhhhhhh.............eeeeee..hhhhh......hhhhh.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3kas B  86 NELPSLCMLNNSFYYMRGGVNTFLIRVSDISVLMKEYDVSIYEPEDLGNCLNKSDSSWAIHWFSNALGHDWLMDPPMLCRNKTKKEGSNIQFNISKADDARVYGKKIRNGMRHLFRGFHDPCEEGKVCYLTINQCGDPSSFDYCGVNHLSKCQFDH 241
                                    95       105       115       125       135       145       155       165       175       185       195       205       215       225       235

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(hide GO term definitions)

Chain A (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.

Chain B (Q8AZ57_MACHU | Q8AZ57)

biological process
	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:0033644	host cell membrane	Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
	GO:0020002	host cell plasma membrane	The plasma membrane surrounding a host cell.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0019031	viral envelope	The lipid bilayer of a virion that surrounds the protein capsid. May also contain glycoproteins.
	GO:0019012	virion	The complete fully infectious extracellular virus particle.

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	TFR1_HUMAN \| P02786
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UniProtKB/Swiss-Prot
	TFR1_HUMAN \| P02786	:	1cx8 1de4 1suv 2nsu 3s9l 3s9m 3s9n

1cx8	STRUCTURE OF HUMAN TRANSFERRIN RECEPTOR 1
2wfo	STRUCTURE OF MACHUPO VIRUS GP1

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (6, 21)

Sites (21, 21)

SS Bonds (5, 5)

Cis Peptide Bonds (1, 1)

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