General information | DisProt: | DP00386_C001 | Name: | Truncated apolipoprotein A-I | Synonym(s): | APOA1_HUMAN
Apo-AI
ApoA-I
cleavage product 1 of Apolipoprotein A-I
Apolipoprotein A-I (1-242)
| First appeared in release: | Release 3.0 (02/17/2006) | UniProt: | P02647 | UniGene: | Hs.633003 | SwissProt: | APOA1_HUMAN | TrEMBL: | | NCBI (GI): | 113992 | Source organism: | Homo sapiens (Human) | Sequence length: | 242 | Percent disordered: | 31% | Homologues: | |
Native sequence |
10 20 30 40 50 60 | | | | | | DEPPQSPWDR VKDLATVYVD VLKDSGRDYV SQFEGSALGK QLNLKLLDNW DSVTSTFSKL - 60 REQLGPVTQE FWDNLEKETE GLRQEMSKDL EEVKAKVQPY LDDFQKKWQE EMELYRQKVE - 120 PLRAELQEGA RQKLHELQEK LSPLGEEMRD RARAHVDALR THLAPYSDEL RQRLAARLEA - 180 LKENGGARLA EYHAKATEHL STLSEKAKPA LEDLRQGLLP VLESFKVSFL SALEEYTKKL - 240 NT
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Functional narrative |
Participates in the reverse transport of cholesterol from tissues to the liver for excretion by promoting cholesterol efflux from tissues and by acting as a cofactor for the lecithin cholesterol acyltransferase (LCAT). As part of the SPAP complex, activates spermatozoa motility. Apolipoprotein A-I (1-242) is cleavage product 1 of Apolipoprotein A-I, comprised of amino acid residues 25-266 of the polyprotein. This cleavage product is often referred to by the same name as the 'parent' polyprotein. Additionally, a chain of 243 aa, identical to this cleavage product with the addition of a Glutamine at position 243, exists.
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Map of ordered and disordered regions |


Note: 'Mouse' over a region to see the start and stop residues. Click on a region to see detailed information.
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Region 1 | Type: | Disordered | Name: | | Location: | 1 - 44 | Length: | 44 | Region sequence: |
DEPPQSPWDRVKDLATVYVDVLKDSGRDYVSQFEGSALGKQLNL | Modification type: | Fragment
| PDB: | | Structural/functional type: | Function arises via a disorder to order transition | Functional classes: | Unknown
| Functional subclasses: | Protein-lipid interaction
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (298 K; )
| References:
- Zhu HL, Atkinson D. "Conformation and lipid binding of the N-terminal (1-44) domain of human apolipoprotein A-I." Biochemistry. 2004; 43(41): 13156-64. PubMed: 15476409
| Comments:
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Region 2 | Type: | Disordered | Name: | | Location: | 1 - 8 | Length: | 8 | Region sequence: |
DEPPQSPW | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 3 | Type: | Disordered | Name: | | Location: | 33 - 43 | Length: | 11 | Region sequence: |
FEGSALGKQLN | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 4 | Type: | Disordered | Name: | | Location: | 65 - 66 | Length: | 2 | Region sequence: |
GP | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 5 | Type: | Disordered | Name: | | Location: | 78 - 81 | Length: | 4 | Region sequence: |
ETEG | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 6 | Type: | Disordered | Name: | | Location: | 87 - 89 | Length: | 3 | Region sequence: |
SKD | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 7 | Type: | Disordered | Name: | | Location: | 98 - 99 | Length: | 2 | Region sequence: |
QP | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 8 | Type: | Disordered | Name: | | Location: | 119 - 121 | Length: | 3 | Region sequence: |
VEP | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 9 | Type: | Disordered | Name: | | Location: | 141 - 145 | Length: | 5 | Region sequence: |
LSPLG | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 10 | Type: | Disordered | Name: | | Location: | 163 - 166 | Length: | 4 | Region sequence: |
LAPY | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 11 | Type: | Disordered | Name: | | Location: | 206 - 209 | Length: | 4 | Region sequence: |
KAKP | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Region 12 | Type: | Disordered | Name: | | Location: | 217 - 220 | Length: | 4 | Region sequence: |
GLLP | Modification type: | Complex
Monomeric
| PDB: | | Structural/functional type: | Relationship to function unknown | Functional classes: | Unknown
| Functional subclasses: | Unknown
| Detection methods:
- Circular dichroism (CD) spectroscopy, far-UV (315 K; pH: 7; )
- Nuclear magnetic resonance (NMR) (315 K; pH: 7; D2O 5 %; H2O 95 %)
| References:
- Okon M, Frank PG, Marcel YL, Cushley RJ. "Heteronuclear NMR studies of human serum apolipoprotein A-I. Part I. Secondary structure in lipid-mimetic solution." FEBS Lett. 2002; 517(1-3): 139-43. PubMed: 12062424
| Comments:
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Comments |
Previous entry DP00386 has been split into the polyprotein (DP00386) and cleavage product 1 DP00386_C001. Disorder is characterized on the cleavage product.
A 243-aa form also exists that is identical to the cleavage product but for the addition of a Glutamine at what would be position 243 in the cleavage product (position 267 in the polyprotein).
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