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(-)Asym./Biol. Unit
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(-) Description

Authors :  M. Muraki, K. Harata
Date :  21 Aug 96  (Deposition) - 12 Feb 97  (Release) - 24 Feb 09  (Revision)
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase (O-Glycosyl), Glycosydase, Vertebrate C-Type (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  M. Muraki, K. Harata, N. Sugita, K. Sato
Origin Of Carbohydrate Recognition Specificity Of Human Lysozyme Revealed By Affinity Labeling.
Biochemistry V. 35 13562 1996
PubMed-ID: 8885835  |  Reference-DOI: 10.1021/BI9613180
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - LYSOZYME
    EC Number3.2.1.17
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    Other DetailsHUMAN LYSOZYME, PH 4.5, NO LIGAND

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1REX)

(-) Sites  (0, 0)

(no "Site" information available for 1REX)

(-) SS Bonds  (4, 4)

Asymmetric/Biological Unit
1A:6 -A:128
2A:30 -A:116
3A:65 -A:81
4A:77 -A:95

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1REX)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

Asymmetric/Biological Unit (3, 3)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_004280I74TLYSC_HUMANDisease (AMYL8)121913547AI56T
2UniProtVAR_004281D85HLYSC_HUMANDisease (AMYL8)121913548AD67H

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
1LACTALBUMIN_LYSOZYME_2PS51348 Alpha-lactalbumin / lysozyme C family profile.LYSC_HUMAN19-148  1A:1-130
2LACTALBUMIN_LYSOZYME_1PS00128 Alpha-lactalbumin / lysozyme C signature.LYSC_HUMAN95-113  1A:77-95

(-) Exons   (4, 4)

Asymmetric/Biological Unit (4, 4)
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength

(-) 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:130
 aligned with LYSC_HUMAN | P61626 from UniProtKB/Swiss-Prot  Length:148

    Alignment length:130
                                    28        38        48        58        68        78        88        98       108       118       128       138       148
               SCOP domains d1rexa_ A: Lysozyme                                                                                                                SCOP domains
               CATH domains 1rexA00 A:1-130  [code=1.10.530.10, no name defined]                                                                               CATH domains
               Pfam domains Lys-1rexA01 A:1-128                                                                                                             -- Pfam domains
         Sec.struct. author ....hhhhhhhhhh.....hhh..hhhhhhhhhhhh......eeee....eeee..........................hhhhh....hhhhhhhhhhhh...hhhh.hhhhhh......hhh...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------T----------H--N------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) LACTALBUMIN_LYSOZYME_2  PDB: A:1-130 UniProt: 19-148                                                                               PROSITE (1)
                PROSITE (2) ----------------------------------------------------------------------------LACTALBUMIN_LYSOZYM----------------------------------- PROSITE (2)
           Transcript 1 (1) Exon 1.1  PDB: A:1-28       ------------------------------------------------------Exon 1.3  PDB: A:83-109    --------------------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------Exon 1.2  PDB: A:28-83 UniProt: 46-101                  -------------------------Exon 1.4               Transcript 1 (2)
                                    10        20        30        40        50        60        70        80        90       100       110       120       130

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    → 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)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
Clan: Lysozyme (266)

(-) Gene Ontology  (14, 14)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (LYSC_HUMAN | P61626)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0003796    lysozyme activity    Catalysis of the hydrolysis of the beta-(1->4) linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in a peptidoglycan.
biological process
    GO:0044267    cellular protein metabolic process    The chemical reactions and pathways involving a specific protein, rather than of proteins in general, occurring at the level of an individual cell. Includes cellular protein modification.
    GO:0019835    cytolysis    The rupture of cell membranes and the loss of cytoplasm.
    GO:0042742    defense response to bacterium    Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
    GO:0006954    inflammatory response    The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0001895    retina homeostasis    A tissue homeostatic process involved in the maintenance of an internal equilibrium within the retina of the eye, including control of cellular proliferation and death and control of metabolic function.
cellular component
    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.


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 Related Entries

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

        LYSC_HUMAN | P61626133l 134l 1b5u 1b5v 1b5w 1b5x 1b5y 1b5z 1b7l 1b7m 1b7n 1b7o 1b7p 1b7q 1b7r 1b7s 1bb3 1bb4 1bb5 1c43 1c45 1c46 1c7p 1cj6 1cj7 1cj8 1cj9 1ckc 1ckd 1ckf 1ckg 1ckh 1d6p 1d6q 1di3 1di4 1di5 1eq4 1eq5 1eqe 1gay 1gaz 1gb0 1gb2 1gb3 1gb5 1gb6 1gb7 1gb8 1gb9 1gbo 1gbw 1gbx 1gby 1gbz 1gdw 1gdx 1ge0 1ge1 1ge2 1ge3 1ge4 1gev 1gez 1gf0 1gf3 1gf4 1gf5 1gf6 1gf7 1gf8 1gf9 1gfa 1gfe 1gfg 1gfh 1gfj 1gfk 1gfr 1gft 1gfu 1gfv 1hnl 1i1z 1i20 1i22 1inu 1ioc 1ip1 1ip2 1ip3 1ip4 1ip5 1ip6 1ip7 1iwt 1iwu 1iwv 1iww 1iwx 1iwy 1iwz 1ix0 1iy3 1iy4 1jka 1jkb 1jkc 1jkd 1jsf 1jwr 1laa 1lhh 1lhi 1lhj 1lhk 1lhl 1lhm 1lmt 1loz 1lyy 1lz1 1lz4 1lz5 1lz6 1lzr 1lzs 1op9 1oua 1oub 1ouc 1oud 1oue 1ouf 1oug 1ouh 1oui 1ouj 1qsw 1re2 1rem 1rey 1rez 1tay 1tby 1tcy 1tdy 1ubz 1w08 1wqm 1wqn 1wqo 1wqp 1wqq 1wqr 1yam 1yan 1yao 1yap 1yaq 207l 208l 2bqa 2bqb 2bqc 2bqd 2bqe 2bqf 2bqg 2bqh 2bqi 2bqj 2bqk 2bql 2bqm 2bqn 2bqo 2hea 2heb 2hec 2hed 2hee 2hef 2lhm 2mea 2meb 2mec 2med 2mee 2mef 2meg 2meh 2mei 2nwd 2zij 2zik 2zil 2zwb 3eba 3fe0 3lhm 3ln2 4i0c 4ml7 4r0p 5lsh 5lvk

(-) Related Entries Specified in the PDB File

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