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Reviewed, UniProtKB/Swiss-Prot O14727 (APAF_HUMAN)

Last modified November 3, 2009. Version 121. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (4) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Apoptotic protease-activating factor 1
      Short name=Apaf-1
Gene names
Name: APAF1
Synonyms: KIAA0413
OrganismHomo sapiens (Human) [Complete proteome]
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length1248 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Oligomeric Apaf-1 mediates the cytochrome c-dependent autocatalytic activation of pro-caspase-9 (Apaf-3), leading to the activation of caspase-3 and apoptosis. This activation requires ATP. Isoform 6 is less effective in inducing apoptosis. Ref.4 Ref.5

Subunit structure

Monomer. Oligomerizes upon binding of cytochrome c and dATP. Oligomeric Apaf-1 and pro-caspase-9 bind to each other via their respective NH2-terminal CARD domains and consecutively mature caspase-9 is released from the complex. Pro-caspase-3 is recruited into the Apaf-1-pro-caspase-9 complex via interaction with pro-caspase-9. Interacts with APIP. Ref.4 Ref.10 Ref.12

Subcellular location

Cytoplasm. Ref.5

Tissue specificity

Ubiquitous. Highest levels of expression in adult spleen and peripheral blood leukocytes, and in fetal brain, kidney and lung. Isoform 1 is expressed in heart, kidney and liver.

Induction

By E2F and p53 in apoptotic neurons. Ref.11

Domain

The CARD domain mediates interaction with APIP.

Sequence similarities

Contains 1 CARD domain.

Contains 1 NB-ARC domain.

Contains 13 WD repeats.

Sequence caution

The sequence AAK28401.1 differs from that shown. Reason: Frameshift at position 108.

Ontologies

Binary interactions

Alternative products

This entry describes 6 isoforms produced by alternative splicing. [Align] [Select]
Isoform 1 (identifier: O14727-1)

Also known as: Apaf-1XL;

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.
Isoform 2 (identifier: O14727-2)

Also known as: Apaf-1L;

The sequence of this isoform differs from the canonical sequence as follows:
     99-109: Missing.
Isoform 3 (identifier: O14727-3)

Also known as: Apaf-1S;

The sequence of this isoform differs from the canonical sequence as follows:
     99-109: Missing.
     824-866: Missing.
Isoform 4 (identifier: O14727-4)

Also known as: Apaf-1M;

The sequence of this isoform differs from the canonical sequence as follows:
     824-866: Missing.
Isoform 5 (identifier: O14727-5)

Also known as: Apaf-1XS;

The sequence of this isoform differs from the canonical sequence as follows:
     575-575: E → ETLGFESKK
     824-866: Missing.
     1113-1154: Missing.
Isoform 6 (identifier: O14727-6)

Also known as: Apaf-1-ALT;

The sequence of this isoform differs from the canonical sequence as follows:
     319-338: GSPLVVSLIGALLRDFPNRW → VVERCHWGILTDLLHKWNQS
     339-1248: Missing.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 12481248Apoptotic protease-activating factor 1
PRO_0000050844

Regions

Domain1 – 9090CARD
Domain104 – 415312NB-ARC
Repeat613 – 65240WD 1
Repeat655 – 69440WD 2
Repeat697 – 73842WD 3
Repeat741 – 78040WD 4
Repeat796 – 83641WD 5
Repeat838 – 87740WD 6
Repeat880 – 91940WD 7
Repeat959 – 99840WD 8
Repeat1001 – 104040WD 9
Repeat1042 – 108039WD 10
Repeat1083 – 112240WD 11
Repeat1125 – 116440WD 12
Repeat1175 – 121238WD 13
Nucleotide binding154 – 1618ATP Potential
Compositional bias95 – 984Poly-Ser

Amino acid modifications

Modified residue2041Phosphothreonine Ref.13
Modified residue2381Phosphoserine Ref.13
Modified residue2481Phosphoserine Ref.13

Natural variations

Alternative sequence99 – 10911Missing in isoform 2 and isoform 3.
VSP_006759
Alternative sequence319 – 33820GSPLV…FPNRW → VVERCHWGILTDLLHKWNQS in isoform 6.
VSP_008965
Alternative sequence339 – 1248910Missing in isoform 6.
VSP_008966
Alternative sequence5751E → ETLGFESKK in isoform 5.
VSP_006760
Alternative sequence824 – 86643Missing in isoform 3, isoform 4 and isoform 5.
VSP_006761
Alternative sequence1113 – 115442Missing in isoform 5.
VSP_006762

Experimental info

Mutagenesis1601K → R: No association with APAF-1. No binding to pro-caspase-9. Ref.4
Mutagenesis3681M → L: Activation of pro-caspase-9 independent of cytochrome c. Increased ability to induce apoptosis. Ref.4
Sequence conflict1341N → S Ref.9
Sequence conflict1451G → C in CAB55587. Ref.2
Sequence conflict1611S → F in CAB55586. Ref.2
Sequence conflict3701I → T in CAB55581. Ref.2
Sequence conflict3831Y → H in CAB55586. Ref.2
Sequence conflict5441F → L in CAB55584. Ref.2
Sequence conflict5801A → T in CAB55580. Ref.2
Sequence conflict6081R → C in CAB55585. Ref.2
Sequence conflict6201H → R in CAB55587. Ref.2
Sequence conflict6391L → F in CAB55583. Ref.2
Sequence conflict7081T → A in CAB55579. Ref.2
Sequence conflict7421H → R in CAB55584. Ref.2
Sequence conflict7461V → A in CAB55586. Ref.2
Sequence conflict7571L → P in CAB56462. Ref.2
Sequence conflict7951E → G in CAB55581. Ref.2
Sequence conflict7981E → G in CAB55587. Ref.2
Sequence conflict8251D → A in CAB55585. Ref.2
Sequence conflict8711S → L in CAB55587. Ref.2
Sequence conflict8761A → T in CAB55581. Ref.2
Sequence conflict9491I → V in CAB55585. Ref.2
Sequence conflict10081H → R in CAB55582. Ref.2
Sequence conflict10561S → P in CAB55582. Ref.2
Sequence conflict12411L → I in BAA24843. Ref.6

Secondary structure

............................................................................................. 1248
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Isoform 1 (Apaf-1XL) [UniParc].

Last modified January 23, 2002. Version 2.
Checksum: 0750D05817AC9B3B

FASTA1,248141,840
        10         20         30         40         50         60 
MDAKARNCLL QHREALEKDI KTSYIMDHMI SDGFLTISEE EKVRNEPTQQ QRAAMLIKMI 

        70         80         90        100        110        120 
LKKDNDSYVS FYNALLHEGY KDLAALLHDG IPVVSSSSGK DSVSGITSYV RTVLCEGGVP 

       130        140        150        160        170        180 
QRPVVFVTRK KLVNAIQQKL SKLKGEPGWV TIHGMAGCGK SVLAAEAVRD HSLLEGCFPG 

       190        200        210        220        230        240 
GVHWVSVGKQ DKSGLLMKLQ NLCTRLDQDE SFSQRLPLNI EEAKDRLRIL MLRKHPRSLL 

       250        260        270        280        290        300 
ILDDVWDSWV LKAFDSQCQI LLTTRDKSVT DSVMGPKYVV PVESSLGKEK GLEILSLFVN 

       310        320        330        340        350        360 
MKKADLPEQA HSIIKECKGS PLVVSLIGAL LRDFPNRWEY YLKQLQNKQF KRIRKSSSYD 

       370        380        390        400        410        420 
YEALDEAMSI SVEMLREDIK DYYTDLSILQ KDVKVPTKVL CILWDMETEE VEDILQEFVN 

       430        440        450        460        470        480 
KSLLFCDRNG KSFRYYLHDL QVDFLTEKNC SQLQDLHKKI ITQFQRYHQP HTLSPDQEDC 

       490        500        510        520        530        540 
MYWYNFLAYH MASAKMHKEL CALMFSLDWI KAKTELVGPA HLIHEFVEYR HILDEKDCAV 

       550        560        570        580        590        600 
SENFQEFLSL NGHLLGRQPF PNIVQLGLCE PETSEVYQQA KLQAKQEVDN GMLYLEWINK 

       610        620        630        640        650        660 
KNITNLSRLV VRPHTDAVYH ACFSEDGQRI ASCGADKTLQ VFKAETGEKL LEIKAHEDEV 

       670        680        690        700        710        720 
LCCAFSTDDR FIATCSVDKK VKIWNSMTGE LVHTYDEHSE QVNCCHFTNS SHHLLLATGS 

       730        740        750        760        770        780 
SDCFLKLWDL NQKECRNTMF GHTNSVNHCR FSPDDKLLAS CSADGTLKLW DATSANERKS 

       790        800        810        820        830        840 
INVKQFFLNL EDPQEDMEVI VKCCSWSADG ARIMVAAKNK IFLFDIHTSG LLGEIHTGHH 

       850        860        870        880        890        900 
STIQYCDFSP QNHLAVVALS QYCVELWNTD SRSKVADCRG HLSWVHGVMF SPDGSSFLTS 

       910        920        930        940        950        960 
SDDQTIRLWE TKKVCKNSAV MLKQEVDVVF QENEVMVLAV DHIRRLQLIN GRTGQIDYLT 

       970        980        990       1000       1010       1020 
EAQVSCCCLS PHLQYIAFGD ENGAIEILEL VNNRIFQSRF QHKKTVWHIQ FTADEKTLIS 

      1030       1040       1050       1060       1070       1080 
SSDDAEIQVW NWQLDKCIFL RGHQETVKDF RLLKNSRLLS WSFDGTVKVW NIITGNKEKD 

      1090       1100       1110       1120       1130       1140 
FVCHQGTVLS CDISHDATKF SSTSADKTAK IWSFDLLLPL HELRGHNGCV RCSAFSVDST 

      1150       1160       1170       1180       1190       1200 
LLATGDDNGE IRIWNVSNGE LLHLCAPLSE EGAATHGGWV TDLCFSPDGK MLISAGGYIK 

      1210       1220       1230       1240 
WWNVVTGESS QTFYTNGTNL KKIHVSPDFK TYVTVDNLGI LYILQTLE 

« Hide

Isoform 2 (Apaf-1L).

Checksum: 0D3EF9AB2A66FFF5
Show »

FASTA1,237140,745
Isoform 3 (Apaf-1S).

Checksum: A675EA102DDAAFB7
Show »

FASTA1,194135,980
Isoform 4 (Apaf-1M).

Checksum: DA57B4E35E79D73A
Show »

FASTA1,205137,076
Isoform 5 (Apaf-1XS).

Checksum: CA9B14019EAB35BF
Show »

FASTA1,171133,356
Isoform 6 (Apaf-1-ALT).

Checksum: 29D933A65707ED92
Show »

FASTA33837,976

References

« Hide 'large scale' references
[1]"Apaf-1, a human protein homologous to C. elegans CED-4, participates in cytochrome c-dependent activation of caspase-3."
Zou H., Henzel W.J., Liu X., Lutschg A., Wang X.
Cell 90:405-413(1997) [PubMed: 9267021] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3), PARTIAL PROTEIN SEQUENCE.
Tissue: Cervix carcinoma.
[2]"Three new types of Apaf-1 in mammalian cells."
Hahn C., Hirsch B., Jahnke D., Duerkop H., Stein H.
Biochem. Biophys. Res. Commun. 261:746-749(1999) [PubMed: 10441496] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 4 AND 5).
Tissue: Cervix carcinoma, Heart and Peripheral blood.
[3]"Cytochrome c and dATP-mediated oligomerization of Apaf-1 is a prerequisite for procaspase-9 activation."
Saleh A., Srinivasula S.M., Acharya S., Fishel R., Alnemri E.S.
J. Biol. Chem. 274:17941-17945(1999) [PubMed: 10364241] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2).
Tissue: T-cell.
[4]"Role of cytochrome c and dATP/ATP hydrolysis in Apaf-1-mediated caspase-9 activation and apoptosis."
Hu Y., Benedict M.A., Ding L., Nunez G.
EMBO J. 18:3586-3595(1999) [PubMed: 10393175] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, SUBUNIT, MUTAGENESIS OF LYS-160 AND MET-368.
Tissue: Kidney.
[5]"APAF-1-ALT, a novel alternative splicing form of APAF-1, potentially causes impeded ability of undergoing DNA damage-induced apoptosis in the LNCaP human prostate cancer cell line."
Ogawa T., Shiga K., Hashimoto S., Kobayashi T., Horii A., Furukawa T.
Biochem. Biophys. Res. Commun. 306:537-543(2003) [PubMed: 12804598] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 6), FUNCTION, SUBCELLULAR LOCATION.
Tissue: Prostatic carcinoma.
[6]"Prediction of the coding sequences of unidentified human genes. VIII. 78 new cDNA clones from brain which code for large proteins in vitro."
Ishikawa K., Nagase T., Nakajima D., Seki N., Ohira M., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O.
DNA Res. 4:307-313(1997) [PubMed: 9455477] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
Tissue: Brain.
[7]"Construction of expression-ready cDNA clones for KIAA genes: manual curation of 330 KIAA cDNA clones."
Nakajima D., Okazaki N., Yamakawa H., Kikuno R., Ohara O., Nagase T.
DNA Res. 9:99-106(2002) [PubMed: 12168954] [Abstract]
Cited for: SEQUENCE REVISION.
[8]"The mammalian CED4 homologue, APAF1, exists as two distinct forms in human cells."
Roberts D.L., Dalgleish R., Cohen G.M., MacFarlane M.
Submitted (MAR-1999) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 810-864 AND 866-883.
[9]"Cloning of variant Apaf1."
Won M., Lee J.-W., Ohr H.-H., Kim D.-U., Chung K.-S., Lee M., Yoo H.-S.
Submitted (MAR-2000) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1-138 (ISOFORMS 1/4/5).
[10]"Autoactivation of procaspase-9 by Apaf-1-mediated oligomerization."
Srinivasula S.M., Ahmad M., Fernandes-Alnemri T., Alnemri E.S.
Mol. Cell 1:949-957(1998) [PubMed: 9651578] [Abstract]
Cited for: APAF-1-MEDIATED OLIGOMERIZATION.
[11]"Apaf-1 is a transcriptional target for E2F and p53."
Moroni M.C., Hickman E.S., Denchi E.L., Caprara G., Colli E., Cecconi F., Mueller H., Helin K.
Nat. Cell Biol. 3:552-558(2001) [PubMed: 11389439] [Abstract]
Cited for: INDUCTION BY E2F AND P53.
[12]"Induced inhibition of ischemic/hypoxic injury by APIP, a novel Apaf-1-interacting protein."
Cho D.-H., Hong Y.-M., Lee H.-J., Woo H.-N., Pyo J.-O., Mak T.W., Jung Y.-K.
J. Biol. Chem. 279:39942-39950(2004) [PubMed: 15262985] [Abstract]
Cited for: INTERACTION WITH APIP.
[13]"Global, in vivo, and site-specific phosphorylation dynamics in signaling networks."
Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M.
Cell 127:635-648(2006) [PubMed: 17081983] [Abstract]
Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-204; SER-238 AND SER-248, MASS SPECTROMETRY.
Tissue: Epithelium.
[14]"Crystal structure of Apaf-1 caspase recruitment domain: an alpha-helical Greek key fold for apoptotic signaling."
Vaughn D.E., Rodriguez J., Lazebnik Y., Joshua-Tor L.
J. Mol. Biol. 293:439-447(1999) [PubMed: 10543941] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (1.3 ANGSTROMS) OF 1-97.
[15]"Solution structure and mutagenesis of the caspase recruitment domain (CARD) from Apaf-1."
Day C.L., Dupont C., Lackmann M., Vaux D.L., Hinds M.G.
Cell Death Differ. 6:1125-1132(1999) [PubMed: 10578182] [Abstract]
Cited for: STRUCTURE BY NMR OF 1-97.
+Additional computationally mapped references.

Cross-references

Sequence databases

AF013263 mRNA. Translation: AAC51678.1.
AJ243003 mRNA. Translation: CAB55579.1.
AJ243004 mRNA. Translation: CAB55580.1.
AJ243005 mRNA. Translation: CAB55581.1.
AJ243006 mRNA. Translation: CAB55582.1.
AJ243007 mRNA. Translation: CAB55583.1.
AJ243008 mRNA. Translation: CAB55584.1.
AJ243009 mRNA. Translation: CAB55585.1.
AJ243010 mRNA. Translation: CAB55586.1.
AJ243011 mRNA. Translation: CAB55587.1.
AJ243048 mRNA. Translation: CAB55588.1.
AJ243107 mRNA. Translation: CAB56462.1.
AF134397 mRNA. Translation: AAD38344.1.
AF149794 mRNA. Translation: AAD34016.1.
AB007873 mRNA. Translation: BAA24843.2. Different initiation.
AB103079 mRNA. Translation: BAC77343.1.
AJ133643 Genomic DNA. Translation: CAB65085.1.
AJ133644 Genomic DNA. Translation: CAB65086.1.
AJ133645 Genomic DNA. Translation: CAB65087.1.
AF248734 mRNA. Translation: AAK28401.1. Frameshift.
IPIIPI00023630.
IPI00217460.
IPI00217461.
IPI00217462.
IPI00217463.
IPI00375875.
PIRT03818.
RefSeqNP_001151.1.
NP_037361.1.
NP_863651.1.
NP_863658.1.
NP_863659.1.
UniGeneHs.708112

3D structure databases

EntryMethodResolution (Å)ChainPositionsPDBsum
1C15NMR-A1-97[»]
1CWWNMR-A1-97[»]
1CY5X-ray1.30A1-97[»]
1Z6TX-ray2.21A/B/C/D1-591[»]
2P1HX-ray1.59A1-92[»]
2YGSX-ray1.60A1-92[»]
3YGSX-ray2.50C1-95[»]
ModBaseSearch...

Protein-protein interaction databases

DIPDIP:27624N.
IntActO14727. 3 interactions.
STRINGO14727.

PTM databases

PhosphoSiteO14727.

Proteomic databases

PRIDEO14727.

Genome annotation databases

EnsemblENST00000333991; ENSP00000334558; ENSG00000120868; Homo sapiens. [Genome view]
ENST00000339433; ENSP00000341830; ENSG00000120868; Homo sapiens. [Genome view]
ENST00000357310; ENSP00000349862; ENSG00000120868; Homo sapiens. [Genome view]
ENST00000359972; ENSP00000353059; ENSG00000120868; Homo sapiens. [Genome view]
GeneID317.
KEGGhsa:317.
UCSCuc001tfy.1. human.
uc001tfz.1. human.
uc001tga.1. human.
uc001tgb.1. human.
uc001tgc.1. human.

Organism-specific databases

CTD317.
GeneCardsGC12P097541.
H-InvDBHIX0010910.
HGNCHGNC:576. APAF1.
MIM602233. gene.
PharmGKBPA24868.
HUGESearch...
GenAtlasSearch...

Phylogenomic databases

HOVERGENO14727.
OMASSYDYEA.

Enzyme and pathway databases

Pathway_Interaction_DBcaspase_pathway. Caspase cascade in apoptosis.
hivnefpathway. HIV-1 Nef: Negative effector of Fas and TNF-alpha.
p75ntrpathway. p75(NTR)-mediated signaling.
ReactomeREACT_578. Apoptosis.

Gene expression databases

ArrayExpressO14727.
BgeeO14727.
GenevestigatorO14727.
GermOnlineENSG00000120868. Homo sapiens.

Family and domain databases

InterProIPR017251. Apoptotic_pept-activating_1.
IPR001315. CARD.
IPR011029. DEATH-like.
IPR000767. Disease_R.
IPR020472. G-protein_beta_WD-40_rep_reg.
IPR002182. NB-ARC.
IPR015943. WD40/YVTN_repeat-like_dom.
IPR001680. WD40_repeat.
IPR019782. WD40_repeat_2.
IPR019775. WD40_repeat_CS.
IPR017986. WD40_repeat_dom.
IPR019781. WD40_repeat_sg.
[Graphical view]
Gene3DG3DSA:1.10.533.10. DEATH_like. 1 hit.
G3DSA:2.130.10.10. WD40/YVTN_repeat-like. 2 hits.
PfamPF00619. CARD. 1 hit.
PF00931. NB-ARC. 1 hit.
PF00400. WD40. 10 hits.
[Graphical view]
PIRSFPIRSF037646. Apop_pept_activating-1. 1 hit.
PRINTSPR00364. DISEASERSIST.
PR00320. GPROTEINBRPT.
ProDomPD000018. WD40. 4 hits.
[Graphical view] [Entries sharing at least one domain]
SMARTSM00320. WD40. 13 hits.
[Graphical view]
PROSITEPS50209. CARD. 1 hit.
PS00678. WD_REPEATS_1. 4 hits.
PS50082. WD_REPEATS_2. 9 hits.
PS50294. WD_REPEATS_REGION. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

DrugBankDB00171. Adenosine triphosphate.
NextBio1287.
PMAP-CutDBO14727.
SOURCESearch...

Entry information

Entry nameAPAF_HUMAN
AccessionPrimary (citable) accession number: O14727
Secondary accession number(s): O43297 expand/collapse secondary AC list , Q7Z438, Q9BXZ6, Q9UBZ5, Q9UGN8, Q9UGN9, Q9UGP0, Q9UJ58, Q9UJ59, Q9UJ60, Q9UJ61, Q9UJ62, Q9UJ63, Q9UJ64, Q9UJ65, Q9UJ66, Q9UJ67, Q9UNC9
Entry history
Integrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: January 23, 2002
Last modified: November 3, 2009
This is version 121 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Relevant documents

Human chromosome 12

Human chromosome 12: entries, gene names and cross-references to MIM

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Web resources · Cross-references · Entry information · Relevant documents