1AYO - JenaLib

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

Asym./Biol. Unit (Jmol Viewer)

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

Title :   RECEPTOR BINDING DOMAIN OF BOVINE ALPHA-2-MACROGLOBULIN

Authors :   L. B. Jenner, L. Husted, S. Thirup, L. Sottrup-Jensen, J. Nyborg

Date :   07 Nov 97 (Deposition) - 25 Nov 98 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.90

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

Keywords :   Macroglobulin, Receptor Binding Domain (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   L. Jenner, L. Husted, S. Thirup, L. Sottrup-Jensen, J. Nyborg
Crystal Structure Of The Receptor-Binding Domain Of Alpha 2-Macroglobulin.
Structure V. 6 595 1998
PubMed-ID: 9634697 | Reference-DOI: 10.1016/S0969-2126(98)00061-6

Molecule 1 - ALPHA-2-MACROGLOBULIN
	Chains	:	A, B
	Fragment	:	RECEPTOR-BINDING DOMAIN
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913
	Other Details	:	N-LINKED GLYCOSYLATION SITE ON ASN B 68
	Tissue	:	PLASMA

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 3)

No.	Name	Count	Type	Full Name
1	CA	1	Ligand/Ion	CALCIUM ION
2	NAG	2	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLN A:27 , NAG B:2 , ASN B:68 , HOH B:170 , HOH B:174 , HOH B:244 , HOH B:300	BINDING SITE FOR RESIDUE NAG B 1
2	AC2	SOFTWARE	GLN A:27 , NAG B:1 , HOH B:256 , HOH B:266 , HOH B:294 , HOH B:295	BINDING SITE FOR RESIDUE NAG B 2
3	AC3	SOFTWARE	ASN A:76 , HOH A:134 , ASP B:120 , GLU B:121 , HOH B:134 , HOH B:148 , HOH B:201	BINDING SITE FOR RESIDUE CA B 133
4	S1	UNKNOWN	ASN A:68 , ASN A:88	N-LINKED GLYCOSYLATION SITE
5	S2	UNKNOWN	ASN B:68 , ASN B:88	N-LINKED GLYCOSYLATION SITE

Asymmetric/Biological Unit

No.	Residues
1	A:17	-	A:131
2	B:17	-	B:131

Asymmetric/Biological Unit

No.	Residues
1	Leu A:13	-	Pro A:14
2	Leu B:13	-	Pro B:14

(no "SAP(SNP)/Variant" information available for 1AYO)

(no "PROSITE Motif" information available for 1AYO)

Asymmetric/Biological Unit (5, 10)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1b	ENST00000318602	1b	ENSE00001945404	chr12:9268753-9268360	394	A2MG_HUMAN	1-29	29	0	-	-
1.3	ENST00000318602	3	ENSE00001643854	chr12:9266139-9265956	184	A2MG_HUMAN	29-90	62	0	-	-
1.5	ENST00000318602	5	ENSE00000718064	chr12:9265132-9264973	160	A2MG_HUMAN	91-144	54	0	-	-
1.6	ENST00000318602	6	ENSE00001629032	chr12:9264807-9264755	53	A2MG_HUMAN	144-161	18	0	-	-
1.7	ENST00000318602	7	ENSE00002189623	chr12:9262930-9262910	21	A2MG_HUMAN	162-168	7	0	-	-
1.8	ENST00000318602	8	ENSE00000867866	chr12:9262631-9262463	169	A2MG_HUMAN	169-225	57	0	-	-
1.9	ENST00000318602	9	ENSE00000718061	chr12:9262001-9261917	85	A2MG_HUMAN	225-253	29	0	-	-
1.10	ENST00000318602	10	ENSE00000897873	chr12:9260240-9260120	121	A2MG_HUMAN	253-293	41	0	-	-
1.11	ENST00000318602	11	ENSE00000718059	chr12:9259201-9259087	115	A2MG_HUMAN	294-332	39	0	-	-
1.12	ENST00000318602	12	ENSE00000897866	chr12:9258941-9258832	110	A2MG_HUMAN	332-368	37	0	-	-
1.13	ENST00000318602	13	ENSE00000897859	chr12:9256996-9256835	162	A2MG_HUMAN	369-422	54	0	-	-
1.14a	ENST00000318602	14a	ENSE00000897852	chr12:9254270-9254043	228	A2MG_HUMAN	423-498	76	0	-	-
1.15	ENST00000318602	15	ENSE00000897848	chr12:9253803-9253740	64	A2MG_HUMAN	499-520	22	0	-	-
1.16	ENST00000318602	16	ENSE00000897845	chr12:9252119-9251977	143	A2MG_HUMAN	520-567	48	0	-	-
1.17a	ENST00000318602	17a	ENSE00000897838	chr12:9251352-9251203	150	A2MG_HUMAN	568-617	50	0	-	-
1.18	ENST00000318602	18	ENSE00000897831	chr12:9248296-9248135	162	A2MG_HUMAN	618-671	54	0	-	-
1.19	ENST00000318602	19	ENSE00000718043	chr12:9247680-9247569	112	A2MG_HUMAN	672-709	38	0	-	-
1.20	ENST00000318602	20	ENSE00000718040	chr12:9246175-9246061	115	A2MG_HUMAN	709-747	39	0	-	-
1.21	ENST00000318602	21	ENSE00001607964	chr12:9244025-9243797	229	A2MG_HUMAN	747-823	77	0	-	-
1.22b	ENST00000318602	22b	ENSE00000897817	chr12:9243078-9242952	127	A2MG_HUMAN	824-866	43	0	-	-
1.23	ENST00000318602	23	ENSE00000897807	chr12:9242619-9242498	122	A2MG_HUMAN	866-906	41	0	-	-
1.24	ENST00000318602	24	ENSE00000897798	chr12:9241847-9241796	52	A2MG_HUMAN	907-924	18	0	-	-
1.25a	ENST00000318602	25a	ENSE00000867865	chr12:9232773-9232690	84	A2MG_HUMAN	924-952	29	0	-	-
1.26	ENST00000318602	26	ENSE00001770435	chr12:9232411-9232235	177	A2MG_HUMAN	952-1011	60	0	-	-
1.27	ENST00000318602	27	ENSE00001743349	chr12:9231927-9231840	88	A2MG_HUMAN	1011-1040	30	0	-	-
1.28	ENST00000318602	28	ENSE00001721442	chr12:9230453-9230297	157	A2MG_HUMAN	1040-1092	53	0	-	-
1.29	ENST00000318602	29	ENSE00001618214	chr12:9230016-9229942	75	A2MG_HUMAN	1093-1117	25	0	-	-
1.30	ENST00000318602	30	ENSE00000717790	chr12:9229532-9229352	181	A2MG_HUMAN	1118-1178	61	0	-	-
1.31	ENST00000318602	31	ENSE00001710972	chr12:9227379-9227156	224	A2MG_HUMAN	1178-1252	75	0	-	-
1.32	ENST00000318602	32	ENSE00000717788	chr12:9225467-9225249	219	A2MG_HUMAN	1253-1325	73	0	-	-
1.33	ENST00000318602	33	ENSE00001787383	chr12:9225082-9224955	128	A2MG_HUMAN	1326-1368	43	2	A:3-33 B:3-33	31 31
1.34	ENST00000318602	34	ENSE00000717786	chr12:9223174-9223084	91	A2MG_HUMAN	1368-1398	31	2	A:33-63 B:33-63	31 31
1.35	ENST00000318602	35	ENSE00001753977	chr12:9222409-9222341	69	A2MG_HUMAN	1399-1421	23	2	A:64-85 (gaps) B:64-85 (gaps)	23 23
1.36c	ENST00000318602	36c	ENSE00001710304	chr12:9221438-9221336	103	A2MG_HUMAN	1422-1456	35	2	A:86-120 B:86-120	35 35
1.37a	ENST00000318602	37a	ENSE00001258647	chr12:9220820-9220779	42	A2MG_HUMAN	1456-1470	15	2	A:120-132 B:120-132	13 13
1.37c	ENST00000318602	37c	ENSE00001920030	chr12:9220435-9220308	128	A2MG_HUMAN	1470-1474	5	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:130
 aligned with A2MG_BOVIN | Q7SIH1 from UniProtKB/Swiss-Prot  Length:1510

    Alignment length:130
                                  1384      1394      1404      1414      1424      1434      1444      1454      1464      1474      1484      1494      1504
          A2MG_BOVIN   1375 EFPFALEVQTLPQTCDGPKAHTSFQISLSVSYIGSRPASNMAIVDVKMVSGFIPLKPTVKMLERSNVSRTEVSNNHVLIYLDKVTNETLTLTFTVLQDIPVRDLKPAIVKVYDYYETDEFAVAEYSAPCS 1504
               SCOP domains d1ayoa_ A: alpha-2-macroglobulin                                                                                                   SCOP domains
               CATH domains 1ayoA00 A:3-132  [code=2.60.40.690, no name defined]                                                                               CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeee......hhhh.eeeeeeeeee.........eeeeee....eee.hhhhhhh....eeeeeee..eeeeee.......eeeeeeeee.........eeeeeee......eeeeee..... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------- Transcript
                1ayo A    3 EFPFALEVQTLPQTCDGPKAHTSFQISLSVSYIGSRPASNMAIVDVKMVSGFIPLKPTVKMLERSNVSRTEVSNNHVLIYLDKVTNETLTLTFTVLQDIPVRDLKPAIVKVYDYYETDEFAVAEYSAPCS  132
                                    12        22        32        42        52        62        72        82        92       102       112       122       132

Chain A from PDB  Type:PROTEIN  Length:130
 aligned with A2MG_HUMAN | P01023 from UniProtKB/Swiss-Prot  Length:1474

    Alignment length:131
                                  1347      1357      1367      1377      1387      1397      1407      1417      1427      1437      1447      1457      1467 
          A2MG_HUMAN   1338 EFPFALGVQTLPQTCDEPKAHTSFQISLSVSYTGSRSASNMAIVDVKMVSGFIPLKPTVKMLERSNHVSRTEVSSNHVLIYLDKVSNQTLSLFFTVLQDVPVRDLKPAIVKVYDYYETDEFAIAEYNAPCS 1468
               SCOP domains d1ayoa_ A: alpha-2-macroglobulin                                                                                                    SCOP domains
               CATH domains 1ayoA00 A:3-132  [code=2.60.40.690, no name defined]                                                                                CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeee......hhhh.eeeeeeeeee.........eeeeee....eee.hhhhhhh....-eeeeeee..eeeeee.......eeeeeeeee.........eeeeeee......eeeeee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.33  PDB: A:3-33         ------------------------------Exon 1.35              Exon 1.36c  PDB: A:86-120          ------------ Transcript 1 (1)
           Transcript 1 (2) ------------------------------Exon 1.34  PDB: A:33-63        ---------------------------------------------------------Exon 1.37a    Transcript 1 (2)
                1ayo A    3 EFPFALEVQTLPQTCDGPKAHTSFQISLSVSYIGSRPASNMAIVDVKMVSGFIPLKPTVKMLERSN-VSRTEVSNNHVLIYLDKVTNETLTLTFTVLQDIPVRDLKPAIVKVYDYYETDEFAVAEYSAPCS  132
                                    12        22        32        42        52        62     | |71        81        91       101       111       121       131 
                                                                                            68 |                                                               
                                                                                              69

Chain B from PDB  Type:PROTEIN  Length:130
 aligned with A2MG_BOVIN | Q7SIH1 from UniProtKB/Swiss-Prot  Length:1510

    Alignment length:130
                                  1384      1394      1404      1414      1424      1434      1444      1454      1464      1474      1484      1494      1504
          A2MG_BOVIN   1375 EFPFALEVQTLPQTCDGPKAHTSFQISLSVSYIGSRPASNMAIVDVKMVSGFIPLKPTVKMLERSNVSRTEVSNNHVLIYLDKVTNETLTLTFTVLQDIPVRDLKPAIVKVYDYYETDEFAVAEYSAPCS 1504
               SCOP domains d1ayob_ B: alpha-2-macroglobulin                                                                                                   SCOP domains
               CATH domains 1ayoB00 B:3-132  [code=2.60.40.690, no name defined]                                                                               CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeee......hhhh.eeeeeeeeee.........eeeeee....eee.hhhhhhhhh..eeeeeee..eeeeee.......eeeeeeeee.........eeeeeee......eeeeee..... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------- Transcript
                1ayo B    3 EFPFALEVQTLPQTCDGPKAHTSFQISLSVSYIGSRPASNMAIVDVKMVSGFIPLKPTVKMLERSNVSRTEVSNNHVLIYLDKVTNETLTLTFTVLQDIPVRDLKPAIVKVYDYYETDEFAVAEYSAPCS  132
                                    12        22        32        42        52        62        72        82        92       102       112       122       132

Chain B from PDB  Type:PROTEIN  Length:130
 aligned with A2MG_HUMAN | P01023 from UniProtKB/Swiss-Prot  Length:1474

    Alignment length:131
                                  1347      1357      1367      1377      1387      1397      1407      1417      1427      1437      1447      1457      1467 
          A2MG_HUMAN   1338 EFPFALGVQTLPQTCDEPKAHTSFQISLSVSYTGSRSASNMAIVDVKMVSGFIPLKPTVKMLERSNHVSRTEVSSNHVLIYLDKVSNQTLSLFFTVLQDVPVRDLKPAIVKVYDYYETDEFAIAEYNAPCS 1468
               SCOP domains d1ayob_ B: alpha-2-macroglobulin                                                                                                    SCOP domains
               CATH domains 1ayoB00 B:3-132  [code=2.60.40.690, no name defined]                                                                                CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeee......hhhh.eeeeeeeeee.........eeeeee....eee.hhhhhhhhh..-eeeeeee..eeeeee.......eeeeeeeee.........eeeeeee......eeeeee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.33  PDB: B:3-33         ------------------------------Exon 1.35              Exon 1.36c  PDB: B:86-120          ------------ Transcript 1 (1)
           Transcript 1 (2) ------------------------------Exon 1.34  PDB: B:33-63        ---------------------------------------------------------Exon 1.37a    Transcript 1 (2)
                1ayo B    3 EFPFALEVQTLPQTCDGPKAHTSFQISLSVSYIGSRPASNMAIVDVKMVSGFIPLKPTVKMLERSN-VSRTEVSNNHVLIYLDKVTNETLTLTFTVLQDIPVRDLKPAIVKVYDYYETDEFAVAEYSAPCS  132
                                    12        22        32        42        52        62     | |71        81        91       101       111       121       131 
                                                                                            68 |                                                               
                                                                                              69

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 beta proteins (24004)

Fold: Immunoglobulin-like beta-sandwich (7299)

Superfamily: Macroglobulin (20)

Family: Alpha-macroglobulin receptor domain (5)

Protein domain: alpha-2-macroglobulin (2)

Cow (Bos taurus) [TaxId: 9913] (1)

1a	d1ayoa_	A:
1b	d1ayob_	B:

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Sandwich (5577)

Topology: Immunoglobulin-like (3897)

Homologous Superfamily: [code=2.60.40.690, no name defined] (3)

Cattle (Bos taurus) (1)

1a	1ayoA00	A:3-132
1b	1ayoB00	B:3-132

(no "Pfam Domain" information available for 1AYO)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (A2MG_HUMAN | P01023)

molecular function
	GO:0005096	GTPase activator activity	Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
	GO:0048306	calcium-dependent 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), in the presence of calcium.
	GO:0004866	endopeptidase inhibitor activity	Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
	GO:0019899	enzyme binding	Interacting selectively and non-covalently with any enzyme.
	GO:0019838	growth factor binding	Interacting selectively and non-covalently with any growth factor, proteins or polypeptides that stimulate a cell or organism to grow or proliferate.
	GO:0019966	interleukin-1 binding	Interacting selectively and non-covalently with interleukin-1.
	GO:0019959	interleukin-8 binding	Interacting selectively and non-covalently with interleukin-8.
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
	GO:0002020	protease binding	Interacting selectively and non-covalently with any protease or peptidase.
	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:0005102	receptor binding	Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
	GO:0043120	tumor necrosis factor binding	Interacting selectively and non-covalently with tumor necrosis factor, a proinflammatory cytokine produced by monocytes and macrophages.
biological process
	GO:0007597	blood coagulation, intrinsic pathway	A protein activation cascade that contributes to blood coagulation and consists of the interactions among high molecular weight kininogen, prekallikrein, and factor XII that lead to the activation of clotting factor X.
	GO:0022617	extracellular matrix disassembly	A process that results in the breakdown of the extracellular matrix.
	GO:0001869	negative regulation of complement activation, lectin pathway	Any process that stops, prevents, or reduces the rate of complement activation by the lectin pathway.
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
	GO:0002576	platelet degranulation	The regulated exocytosis of secretory granules containing preformed mediators such as histamine and serotonin by a platelet.
	GO:0043547	positive regulation of GTPase activity	Any process that activates or increases the activity of a GTPase.
	GO:0051056	regulation of small GTPase mediated signal transduction	Any process that modulates the frequency, rate or extent of small GTPase mediated signal transduction.
	GO:0048863	stem cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of a stem cell. A stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells.
cellular component
	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: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: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:0031093	platelet alpha granule lumen	The volume enclosed by the membrane of the platelet alpha granule.

Chain A,B (A2MG_BOVIN | Q7SIH1)

molecular function
	GO:0048306	calcium-dependent 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), in the presence of calcium.
	GO:0004866	endopeptidase inhibitor activity	Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
	GO:0019899	enzyme binding	Interacting selectively and non-covalently with any enzyme.
	GO:0019838	growth factor binding	Interacting selectively and non-covalently with any growth factor, proteins or polypeptides that stimulate a cell or organism to grow or proliferate.
	GO:0019966	interleukin-1 binding	Interacting selectively and non-covalently with interleukin-1.
	GO:0019959	interleukin-8 binding	Interacting selectively and non-covalently with interleukin-8.
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
	GO:0002020	protease binding	Interacting selectively and non-covalently with any protease or peptidase.
	GO:0005102	receptor binding	Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
	GO:0043120	tumor necrosis factor binding	Interacting selectively and non-covalently with tumor necrosis factor, a proinflammatory cytokine produced by monocytes and macrophages.
biological process
	GO:0001869	negative regulation of complement activation, lectin pathway	Any process that stops, prevents, or reduces the rate of complement activation by the lectin pathway.
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
	GO:0048863	stem cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of a stem cell. A stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells.
cellular component
	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: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.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
		Leu A:13 - Pro A:14	[ RasMol ]
		Leu B:13 - Pro B:14	[ RasMol ]

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	1ayo
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	A2MG_HUMAN \| P01023
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UniProtKB/Swiss-Prot
	A2MG_HUMAN \| P01023	:	1bv8 2p9r 4acq

(no "Related Entries Specified in the PDB File" available for 1AYO)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 3)

Sites (5, 5)

SS Bonds (2, 2)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (5, 10)

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SCOP Domains (1, 2)

CATH Domains (1, 2)

Pfam Domains (0, 0)

Gene Ontology (28, 47)

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Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File