1AX1 - JenaLib

Title :   ERYTHRINA CORALLODENDRON LECTIN IN COMPLEX WITH LACTOSE

Authors :   B. Shaanan, S. Elgavish

Date :   24 Oct 97 (Deposition) - 06 May 98 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.95

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

Keywords :   Lectin, Glycoprotein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Elgavish, B. Shaanan
Structures Of The Erythrina Corallodendron Lectin And Of It Complexes With Mono- And Disaccharides.
J. Mol. Biol. V. 277 917 1998
PubMed-ID: 9545381 | Reference-DOI: 10.1006/JMBI.1998.1664

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (9, 11)

Asymmetric Unit (9, 11)

No.	Name	Count	Type	Full Name
1	BGC	1	Ligand/Ion	BETA-D-GLUCOSE
2	BMA	1	Ligand/Ion	BETA-D-MANNOSE
3	CA	1	Ligand/Ion	CALCIUM ION
4	FUC	1	Ligand/Ion	ALPHA-L-FUCOSE
5	GAL	1	Ligand/Ion	BETA-D-GALACTOSE
6	MAN	2	Ligand/Ion	ALPHA-D-MANNOSE
7	MN	1	Ligand/Ion	MANGANESE (II) ION
8	NAG	2	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
9	XYP	1	Ligand/Ion	BETA-D-XYLOPYRANOSE

Biological Unit 1 (7, 18)

No.	Name	Count	Type	Full Name
1	BGC	2	Ligand/Ion	BETA-D-GLUCOSE
2	BMA	2	Ligand/Ion	BETA-D-MANNOSE
3	CA	-1	Ligand/Ion	CALCIUM ION
4	FUC	2	Ligand/Ion	ALPHA-L-FUCOSE
5	GAL	2	Ligand/Ion	BETA-D-GALACTOSE
6	MAN	4	Ligand/Ion	ALPHA-D-MANNOSE
7	MN	-1	Ligand/Ion	MANGANESE (II) ION
8	NAG	4	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE
9	XYP	2	Ligand/Ion	BETA-D-XYLOPYRANOSE

Sites (11, 11)

Asymmetric Unit (11, 11)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	PHE A:6 , ASP A:16 , ASN A:17 , TYR A:53 , LYS A:55 , FUC A:302 , NAG A:303 , HOH A:501 , HOH A:613	BINDING SITE FOR RESIDUE NAG A 301
02	AC2	SOFTWARE	LYS A:55 , NAG A:301 , NAG A:303	BINDING SITE FOR RESIDUE FUC A 302
03	AC3	SOFTWARE	ASP A:16 , NAG A:301 , FUC A:302 , BMA A:304 , XYP A:305 , MAN A:307 , HOH A:501	BINDING SITE FOR RESIDUE NAG A 303
04	AC4	SOFTWARE	ASP A:16 , LEU A:18 , THR A:19 , NAG A:303 , XYP A:305 , MAN A:306 , MAN A:307	BINDING SITE FOR RESIDUE BMA A 304
05	AC5	SOFTWARE	ASP A:16 , NAG A:303 , BMA A:304 , MAN A:306 , HOH A:612 , HOH A:613	BINDING SITE FOR RESIDUE XYP A 305
06	AC6	SOFTWARE	ALA A:54 , LYS A:99 , BMA A:304 , XYP A:305 , HOH A:607 , HOH A:608	BINDING SITE FOR RESIDUE MAN A 306
07	AC7	SOFTWARE	GLY A:14 , ASN A:15 , LEU A:18 , THR A:19 , LEU A:20 , NAG A:303 , BMA A:304 , HOH A:609 , HOH A:614 , HOH A:615	BINDING SITE FOR RESIDUE MAN A 307
08	AC8	SOFTWARE	ALA A:218 , GLN A:219 , GAL A:402 , HOH A:588	BINDING SITE FOR RESIDUE BGC A 401
09	AC9	SOFTWARE	ASP A:89 , GLY A:107 , PHE A:131 , ASN A:133 , GLY A:217 , ALA A:218 , GLN A:219 , ALA A:222 , BGC A:401 , HOH A:522 , HOH A:525 , HOH A:528	BINDING SITE FOR RESIDUE GAL A 402
10	BC1	SOFTWARE	GLU A:127 , ASP A:129 , ASP A:136 , HIS A:142 , HOH A:531 , HOH A:532	BINDING SITE FOR RESIDUE MN A 289
11	BC2	SOFTWARE	ASP A:129 , PHE A:131 , ASN A:133 , ASP A:136 , HOH A:529 , HOH A:530	BINDING SITE FOR RESIDUE CA A 290

SS Bonds (0, 0)

Cis Peptide Bonds (3, 3)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (3, 3)

Asymmetric Unit (3, 3)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_LEC_ERYCO_001 *	G	48	A	LEC_ERYCO	---	---	A	G	22	A
2	UniProt	VAR_LEC_ERYCO_002 *	P	160	Q	LEC_ERYCO	---	---	A	P	134	Q
3	UniProt	VAR_LEC_ERYCO_003 *	D	225	V	LEC_ERYCO	---	---	A	D	199	V
	* ID not provided by source

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

Biological Unit 1 (3, 6)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_LEC_ERYCO_001 *	G	48	A	LEC_ERYCO	---	---	A	G	22	A
2	UniProt	VAR_LEC_ERYCO_002 *	P	160	Q	LEC_ERYCO	---	---	A	P	134	Q
3	UniProt	VAR_LEC_ERYCO_003 *	D	225	V	LEC_ERYCO	---	---	A	D	199	V
	* ID not provided by source

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

PROSITE Motifs (2, 2)

Exons (0, 0)

Sequences/Alignments

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:239
 aligned with LEC_ERYCO | P16404 from UniProtKB/Swiss-Prot  Length:281

    Alignment length:239
                                    36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256         
            LEC_ERYCO    27 VETISFSFSEFEPGNDNLTLQGAALITQSGVLQLTKINQNGMPAWDSTGRTLYAKPVHIWDMTTGTVASFETRFSFSIEQPYTRPLPADGLVFFMGPTKSKPAQGYGYLGIFNNSKQDNSYQTLGVEFDTFSNPWDPPQVPHIGIDVNSIRSIKTQPFQLDNGQVANVVIKYDASSKILHAVLVYPSSGAIYTIAEIVDVKQVLPEWVDVGLSGATGAQRDAAETHDVYSWSFQASLPE 265
               SCOP domains d1ax1a_ A: Legume lectin                                                                                                                                                                                                                        SCOP domains
               CATH domains 1ax1A00 A:1-239  [code=2.60.120.200, no name defined]                                                                                                                                                                                           CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeee.........eeeee.........................eeeeee...............eeeeeeeee...........eeeeeeee.........hhh..........hhh..eeeeee............eeeeee......eeee.......eeeeeeeee....eeeeeeee....eeeeeeee..hhh......eeeeeeee..........eeeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------A---------------------------------------------------------------------------------------------------------------Q----------------------------------------------------------------V---------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------LECTIN_-------------------------------------------------------------------------LECTIN_LEG-------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ax1 A   1 VETISFSFSEFEPGNDNLTLQGAALITQSGVLQLTKINQNGMPAWDSTGRTLYAKPVHIWDMTTGTVASFETRFSFSIEQPYTRPLPADGLVFFMGPTKSKPAQGYGYLGIFNNSKQDNSYQTLGVEFDTFSNPWDPPQVPHIGIDVNSIRSIKTQPFQLDNGQVANVVIKYDASSKILHAVLVYPSSGAIYTIAEIVDVKQVLPEWVDVGLSGATGAQRDAAETHDVYSWSFQASLPE 239
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

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 (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (1, 1)

Asymmetric Unit(hide GO term definitions)

Chain A (LEC_ERYCO | P16404)

molecular function
	GO:0030246		carbohydrate binding		Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.

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	Cis Peptide Bonds
		Ala A:88 - Asp A:89	[ RasMol ]
		Arg A:84 - Pro A:85	[ RasMol ]
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