UniProtKB - O75400 (PR40A_HUMAN)
Pre-mRNA-processing factor 40 homolog A
PRPF40A
Functioni
Binds to WASL/N-WASP and suppresses its translocation from the nucleus to the cytoplasm, thereby inhibiting its cytoplasmic function (By similarity).
Plays a role in the regulation of cell morphology and cytoskeletal organization. Required in the control of cell shape and migration. May play a role in cytokinesis. May be involved in pre-mRNA splicing.
By similarity1 PublicationGO - Molecular functioni
- RNA binding Source: UniProtKB
GO - Biological processi
- cell cycle Source: UniProtKB-KW
- cell division Source: UniProtKB-KW
- cell migration Source: UniProtKB
- cytoskeleton organization Source: UniProtKB
- mRNA cis splicing, via spliceosome Source: InterPro
- mRNA splicing, via spliceosome Source: GO_Central
- regulation of cell shape Source: UniProtKB
- regulation of cytokinesis Source: UniProtKB
Keywordsi
Biological process | Cell cycle, Cell division, mRNA processing, mRNA splicing |
Enzyme and pathway databases
PathwayCommonsi | O75400 |
Reactomei | R-HSA-72163, mRNA Splicing - Major Pathway |
SignaLinki | O75400 |
Protein family/group databases
MoonDBi | O75400, Predicted |
Names & Taxonomyi
Protein namesi | Recommended name: Pre-mRNA-processing factor 40 homolog AAlternative name(s): Fas ligand-associated factor 1 Formin-binding protein 11 Formin-binding protein 3 Huntingtin yeast partner A Huntingtin-interacting protein 10 Short name: HIP-10 Huntingtin-interacting protein A Renal carcinoma antigen NY-REN-6 |
Gene namesi | Name:PRPF40A Synonyms:FBP11, FLAF1, FNBP3, HIP10, HYPA ORF Names:HSPC225 |
Organismi | Homo sapiens (Human) |
Taxonomic identifieri | 9606 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Proteomesi |
|
Organism-specific databases
HGNCi | HGNC:16463, PRPF40A |
MIMi | 612941, gene |
neXtProti | NX_O75400 |
Subcellular locationi
Nucleus
- Nucleus speckle By similarity
- Nucleus matrix 1 Publication
Note: Colocalizes with AKAP8L in the nuclear matrix.By similarity
Nucleus
- nuclear matrix Source: UniProtKB
- nuclear speck Source: HPA
- nucleoplasm Source: Reactome
- U1 snRNP Source: GO_Central
- U2-type prespliceosome Source: GO_Central
Other locations
- membrane Source: UniProtKB
Keywords - Cellular componenti
NucleusPathology & Biotechi
Organism-specific databases
DisGeNETi | 55660 |
OpenTargetsi | ENSG00000196504 |
PharmGKBi | PA28195 |
Miscellaneous databases
Pharosi | O75400, Tbio |
Genetic variation databases
BioMutai | PRPF40A |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000076085 | 1 – 957 | Pre-mRNA-processing factor 40 homolog AAdd BLAST | 957 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length | |
---|---|---|---|---|---|
Modified residuei | 9 | Omega-N-methylarginineBy similarity | 1 | ||
Modified residuei | 34 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 151 | PhosphoserineCombined sources | 1 | ||
Cross-linki | 191 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources | |||
Modified residuei | 196 | N6-acetyllysineCombined sources | 1 | ||
Cross-linki | 241 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources | |||
Modified residuei | 345 | PhosphothreonineCombined sources | 1 | ||
Modified residuei | 373 | PhosphothreonineCombined sources | 1 | ||
Cross-linki | 375 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources | |||
Cross-linki | 376 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources | |||
Modified residuei | 723 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 787 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 883 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 885 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 888 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 932 | PhosphothreonineCombined sources | 1 | ||
Modified residuei | 933 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 935 | PhosphoserineCombined sources | 1 | ||
Modified residuei | 938 | PhosphoserineCombined sources | 1 | ||
Isoform 2 (identifier: O75400-2) | |||||
Modified residuei | 17 | Omega-N-methylarginineCombined sources | 1 | ||
Modified residuei | 24 | Omega-N-methylarginineCombined sources | 1 | ||
Modified residuei | 47 | Omega-N-methylarginineCombined sources | 1 | ||
Isoform 5 (identifier: O75400-5) | |||||
Modified residuei | 17 | Omega-N-methylarginineCombined sources | 1 | ||
Modified residuei | 24 | Omega-N-methylarginineCombined sources | 1 | ||
Modified residuei | 47 | Omega-N-methylarginineCombined sources | 1 |
Keywords - PTMi
Acetylation, Isopeptide bond, Methylation, Phosphoprotein, Ubl conjugationProteomic databases
EPDi | O75400 |
jPOSTi | O75400 |
MassIVEi | O75400 |
MaxQBi | O75400 |
PaxDbi | O75400 |
PeptideAtlasi | O75400 |
PRIDEi | O75400 |
ProteomicsDBi | 49972 [O75400-1] 49973 [O75400-2] 49974 [O75400-3] 49975 [O75400-5] |
PTM databases
GlyGeni | O75400, 1 site, 1 O-linked glycan (1 site) |
iPTMneti | O75400 |
PhosphoSitePlusi | O75400 |
SwissPalmi | O75400 |
Expressioni
Tissue specificityi
Gene expression databases
Bgeei | ENSG00000196504, Expressed in secondary oocyte and 255 other tissues |
Genevisiblei | O75400, HS |
Organism-specific databases
HPAi | ENSG00000196504, Low tissue specificity |
Interactioni
Subunit structurei
Interacts with the N-terminus of HTT.
Interacts with the phosphorylated C-terminal domain of POLR2A.
Interacts with AKAP8L, SF1, SRPK1, ENAH, ATBF1 and MECP2 (By similarity).
Interacts through the WW domains with formin proline-rich regions and with WASL/N-WASP (By similarity).
By similarityBinary interactionsi
O75400
With | #Exp. | IntAct |
---|---|---|
CHD3 [Q12873] | 2 | EBI-473291,EBI-523590 |
HTT [P42858] | 15 | EBI-473291,EBI-466029 |
NKAP [Q8N5F7] | 2 | EBI-473291,EBI-721539 |
SF1 [Q15637] | 3 | EBI-473291,EBI-744603 |
SF3A1 [Q15459] | 2 | EBI-473291,EBI-1054743 |
Isoform 2 [O75400-2]
Protein-protein interaction databases
BioGRIDi | 120792, 313 interactors |
CORUMi | O75400 |
IntActi | O75400, 244 interactors |
MINTi | O75400 |
STRINGi | 9606.ENSP00000386458 |
Miscellaneous databases
RNActi | O75400, protein |
Structurei
Secondary structure
3D structure databases
BMRBi | O75400 |
SMRi | O75400 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | O75400 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 140 – 173 | WW 1PROSITE-ProRule annotationAdd BLAST | 34 | |
Domaini | 181 – 214 | WW 2PROSITE-ProRule annotationAdd BLAST | 34 | |
Domaini | 393 – 447 | FF 1Add BLAST | 55 | |
Domaini | 460 – 514 | FF 2Add BLAST | 55 | |
Domaini | 527 – 587 | FF 3Add BLAST | 61 | |
Domaini | 607 – 667 | FF 4Add BLAST | 61 | |
Domaini | 672 – 727 | FF 5Add BLAST | 56 | |
Domaini | 742 – 799 | FF 6Add BLAST | 58 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1 – 36 | DisorderedSequence analysisAdd BLAST | 36 | |
Regioni | 243 – 263 | DisorderedSequence analysisAdd BLAST | 21 | |
Regioni | 337 – 386 | DisorderedSequence analysisAdd BLAST | 50 | |
Regioni | 803 – 957 | DisorderedSequence analysisAdd BLAST | 155 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 249 – 263 | Polar residuesSequence analysisAdd BLAST | 15 | |
Compositional biasi | 337 – 367 | Polar residuesSequence analysisAdd BLAST | 31 | |
Compositional biasi | 368 – 386 | Basic and acidic residuesSequence analysisAdd BLAST | 19 | |
Compositional biasi | 807 – 827 | Basic residuesSequence analysisAdd BLAST | 21 | |
Compositional biasi | 828 – 866 | Basic and acidic residuesSequence analysisAdd BLAST | 39 | |
Compositional biasi | 867 – 881 | Basic residuesSequence analysisAdd BLAST | 15 | |
Compositional biasi | 882 – 927 | Basic and acidic residuesSequence analysisAdd BLAST | 46 | |
Compositional biasi | 937 – 957 | Basic and acidic residuesSequence analysisAdd BLAST | 21 |
Domaini
Sequence similaritiesi
Keywords - Domaini
RepeatPhylogenomic databases
eggNOGi | KOG0152, Eukaryota |
GeneTreei | ENSGT00930000150980 |
HOGENOMi | CLU_005825_0_0_1 |
InParanoidi | O75400 |
OrthoDBi | 1112854at2759 |
PhylomeDBi | O75400 |
TreeFami | TF318732 |
Family and domain databases
CDDi | cd00201, WW, 2 hits |
Gene3Di | 1.10.10.440, 5 hits |
InterProi | View protein in InterPro IPR002713, FF_domain IPR036517, FF_domain_sf IPR039726, Prp40-like IPR001202, WW_dom IPR036020, WW_dom_sf |
PANTHERi | PTHR11864, PTHR11864, 1 hit |
Pfami | View protein in Pfam PF01846, FF, 5 hits PF00397, WW, 2 hits |
SMARTi | View protein in SMART SM00441, FF, 5 hits SM00456, WW, 2 hits |
SUPFAMi | SSF51045, SSF51045, 2 hits SSF81698, SSF81698, 5 hits |
PROSITEi | View protein in PROSITE PS51676, FF, 6 hits PS01159, WW_DOMAIN_1, 2 hits PS50020, WW_DOMAIN_2, 2 hits |
s (4+)i Sequence
Sequence statusi: Complete.
This entry describes 4 produced by isoformsialternative splicing. AlignAdd to basketThis entry has 4 described isoforms and 5 potential isoforms that are computationally mapped.Show allAlign All
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MRPGTGAERG GLMVSEMESH PPSQGPGDGE RRLSGSSLCS GSWVSADGFL
60 70 80 90 100
RRRPSMGHPG MHYAPMGMHP MGQRANMPPV PHGMMPQMMP PMGGPPMGQM
110 120 130 140 150
PGMMSSVMPG MMMSHMSQAS MQPALPPGVN SMDVAAGTAS GAKSMWTEHK
160 170 180 190 200
SPDGRTYYYN TETKQSTWEK PDDLKTPAEQ LLSKCPWKEY KSDSGKPYYY
210 220 230 240 250
NSQTKESRWA KPKELEDLEG YQNTIVAGSL ITKSNLHAMI KAEESSKQEE
260 270 280 290 300
CTTTSTAPVP TTEIPTTMST MAAAEAAAAV VAAAAAAAAA AAAANANAST
310 320 330 340 350
SASNTVSGTV PVVPEPEVTS IVATVVDNEN TVTISTEEQA QLTSTPAIQD
360 370 380 390 400
QSVEVSSNTG EETSKQETVA DFTPKKEEEE SQPAKKTYTW NTKEEAKQAF
410 420 430 440 450
KELLKEKRVP SNASWEQAMK MIINDPRYSA LAKLSEKKQA FNAYKVQTEK
460 470 480 490 500
EEKEEARSKY KEAKESFQRF LENHEKMTST TRYKKAEQMF GEMEVWNAIS
510 520 530 540 550
ERDRLEIYED VLFFLSKKEK EQAKQLRKRN WEALKNILDN MANVTYSTTW
560 570 580 590 600
SEAQQYLMDN PTFAEDEELQ NMDKEDALIC FEEHIRALEK EEEEEKQKSL
610 620 630 640 650
LRERRRQRKN RESFQIFLDE LHEHGQLHSM SSWMELYPTI SSDIRFTNML
660 670 680 690 700
GQPGSTALDL FKFYVEDLKA RYHDEKKIIK DILKDKGFVV EVNTTFEDFV
710 720 730 740 750
AIISSTKRST TLDAGNIKLA FNSLLEKAEA REREREKEEA RKMKRKESAF
760 770 780 790 800
KSMLKQAAPP IELDAVWEDI RERFVKEPAF EDITLESERK RIFKDFMHVL
810 820 830 840 850
EHECQHHHSK NKKHSKKSKK HHRKRSRSRS GSDSDDDDSH SKKKRQRSES
860 870 880 890 900
RSASEHSSSA ESERSYKKSK KHKKKSKKRR HKSDSPESDA EREKDKKEKD
910 920 930 940 950
RESEKDRTRQ RSESKHKSPK KKTGKDSGNW DTSGSELSEG ELEKRRRTLL
EQLDDDQ
Computationally mapped potential isoform sequencesi
There are 5 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketF5H578 | F5H578_HUMAN | Pre-mRNA-processing factor 40 homol... | PRPF40A | 463 | Annotation score: | ||
H0YG38 | H0YG38_HUMAN | Pre-mRNA-processing factor 40 homol... | PRPF40A | 367 | Annotation score: | ||
A0A7N4I394 | A0A7N4I394_HUMAN | Pre-mRNA-processing factor 40 homol... | PRPF40A | 994 | Annotation score: | ||
H7C2N3 | H7C2N3_HUMAN | Pre-mRNA-processing factor 40 homol... | PRPF40A | 157 | Annotation score: | ||
H7BXZ7 | H7BXZ7_HUMAN | Pre-mRNA-processing factor 40 homol... | PRPF40A | 109 | Annotation score: |
Sequence cautioni
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 372 – 373 | FT → LL in AAB93495 (Ref. 5) Curated | 2 | |
Sequence conflicti | 433 | K → N in AAC27501 (PubMed:9700202).Curated | 1 | |
Sequence conflicti | 433 | K → N in AAC27506 (PubMed:9700202).Curated | 1 | |
Sequence conflicti | 787 | S → P in BAA91277 (PubMed:14702039).Curated | 1 |
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_040781 | 1 | M → MCSGSGRRRSSLSPTM in isoform 2 and isoform 5. 3 Publications | 1 | |
Alternative sequenceiVSP_008047 | 14 – 55 | Missing in isoform 2 and isoform 5. 3 PublicationsAdd BLAST | 42 | |
Alternative sequenceiVSP_040782 | 127 – 128 | PG → LN in isoform 5. 1 Publication | 2 | |
Alternative sequenceiVSP_040783 | 129 – 957 | Missing in isoform 5. 1 PublicationAdd BLAST | 829 | |
Alternative sequenceiVSP_008048 | 220 – 237 | Missing in isoform 3. 1 PublicationAdd BLAST | 18 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AC012443 Genomic DNA No translation available. AC079344 Genomic DNA No translation available. AK000592 mRNA Translation: BAA91277.1 Different initiation. AK024810 mRNA Translation: BAB15016.1 Sequence problems. AF049523 mRNA Translation: AAC27501.1 Different initiation. AF049524 mRNA Translation: AAC27502.1 Different initiation. AF049528 mRNA Translation: AAC27506.1 Different initiation. BC011788 mRNA Translation: AAH11788.1 Sequence problems. BC027178 mRNA Translation: AAH27178.1 U70667 mRNA Translation: AAB93495.1 AF155096 mRNA Translation: AAD42862.1 Frameshift. AF151059 mRNA Translation: AAF36145.1 Frameshift. |
CCDSi | CCDS46430.1 [O75400-2] |
RefSeqi | NP_060362.3, NM_017892.3 [O75400-2] |
Genome annotation databases
Ensembli | ENST00000354363; ENSP00000346332; ENSG00000196504 [O75400-5] |
GeneIDi | 55660 |
KEGGi | hsa:55660 |
UCSCi | uc002tyh.5, human [O75400-1] |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AC012443 Genomic DNA No translation available. AC079344 Genomic DNA No translation available. AK000592 mRNA Translation: BAA91277.1 Different initiation. AK024810 mRNA Translation: BAB15016.1 Sequence problems. AF049523 mRNA Translation: AAC27501.1 Different initiation. AF049524 mRNA Translation: AAC27502.1 Different initiation. AF049528 mRNA Translation: AAC27506.1 Different initiation. BC011788 mRNA Translation: AAH11788.1 Sequence problems. BC027178 mRNA Translation: AAH27178.1 U70667 mRNA Translation: AAB93495.1 AF155096 mRNA Translation: AAD42862.1 Frameshift. AF151059 mRNA Translation: AAF36145.1 Frameshift. |
CCDSi | CCDS46430.1 [O75400-2] |
RefSeqi | NP_060362.3, NM_017892.3 [O75400-2] |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
1UZC | NMR | - | A | 381-450 | [»] | |
1YWI | NMR | - | A | 142-173 | [»] | |
1YWJ | NMR | - | A | 142-173 | [»] | |
1ZR7 | NMR | - | A | 146-173 | [»] | |
2CQN | NMR | - | A | 743-806 | [»] | |
2DYF | NMR | - | A | 146-173 | [»] | |
2KZG | NMR | - | A | 381-450 | [»] | |
2L5F | NMR | - | A | 133-220 | [»] | |
2L9V | NMR | - | A | 381-450 | [»] | |
2LKS | NMR | - | A | 391-439 | [»] | |
BMRBi | O75400 | |||||
SMRi | O75400 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
BioGRIDi | 120792, 313 interactors |
CORUMi | O75400 |
IntActi | O75400, 244 interactors |
MINTi | O75400 |
STRINGi | 9606.ENSP00000386458 |
Protein family/group databases
MoonDBi | O75400, Predicted |
PTM databases
GlyGeni | O75400, 1 site, 1 O-linked glycan (1 site) |
iPTMneti | O75400 |
PhosphoSitePlusi | O75400 |
SwissPalmi | O75400 |
Genetic variation databases
BioMutai | PRPF40A |
Proteomic databases
EPDi | O75400 |
jPOSTi | O75400 |
MassIVEi | O75400 |
MaxQBi | O75400 |
PaxDbi | O75400 |
PeptideAtlasi | O75400 |
PRIDEi | O75400 |
ProteomicsDBi | 49972 [O75400-1] 49973 [O75400-2] 49974 [O75400-3] 49975 [O75400-5] |
Protocols and materials databases
DNASUi | 55660 |
Genome annotation databases
Ensembli | ENST00000354363; ENSP00000346332; ENSG00000196504 [O75400-5] |
GeneIDi | 55660 |
KEGGi | hsa:55660 |
UCSCi | uc002tyh.5, human [O75400-1] |
Organism-specific databases
CTDi | 55660 |
DisGeNETi | 55660 |
GeneCardsi | PRPF40A |
HGNCi | HGNC:16463, PRPF40A |
HPAi | ENSG00000196504, Low tissue specificity |
MIMi | 612941, gene |
neXtProti | NX_O75400 |
OpenTargetsi | ENSG00000196504 |
PharmGKBi | PA28195 |
GenAtlasi | Search... |
Phylogenomic databases
eggNOGi | KOG0152, Eukaryota |
GeneTreei | ENSGT00930000150980 |
HOGENOMi | CLU_005825_0_0_1 |
InParanoidi | O75400 |
OrthoDBi | 1112854at2759 |
PhylomeDBi | O75400 |
TreeFami | TF318732 |
Enzyme and pathway databases
PathwayCommonsi | O75400 |
Reactomei | R-HSA-72163, mRNA Splicing - Major Pathway |
SignaLinki | O75400 |
Miscellaneous databases
BioGRID-ORCSi | 55660, 731 hits in 1053 CRISPR screens |
ChiTaRSi | PRPF40A, human |
EvolutionaryTracei | O75400 |
GeneWikii | PRPF40A |
GenomeRNAii | 55660 |
Pharosi | O75400, Tbio |
PROi | PR:O75400 |
RNActi | O75400, protein |
SOURCEi | Search... |
Gene expression databases
Bgeei | ENSG00000196504, Expressed in secondary oocyte and 255 other tissues |
Genevisiblei | O75400, HS |
Family and domain databases
CDDi | cd00201, WW, 2 hits |
Gene3Di | 1.10.10.440, 5 hits |
InterProi | View protein in InterPro IPR002713, FF_domain IPR036517, FF_domain_sf IPR039726, Prp40-like IPR001202, WW_dom IPR036020, WW_dom_sf |
PANTHERi | PTHR11864, PTHR11864, 1 hit |
Pfami | View protein in Pfam PF01846, FF, 5 hits PF00397, WW, 2 hits |
SMARTi | View protein in SMART SM00441, FF, 5 hits SM00456, WW, 2 hits |
SUPFAMi | SSF51045, SSF51045, 2 hits SSF81698, SSF81698, 5 hits |
PROSITEi | View protein in PROSITE PS51676, FF, 6 hits PS01159, WW_DOMAIN_1, 2 hits PS50020, WW_DOMAIN_2, 2 hits |
MobiDBi | Search... |
Entry informationi
Entry namei | PR40A_HUMAN | |
Accessioni | O75400Primary (citable) accession number: O75400 Secondary accession number(s): O43856 Q9Y5A8 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | August 22, 2003 |
Last sequence update: | August 22, 2003 | |
Last modified: | February 23, 2022 | |
This is version 204 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program | |
Disclaimer | Any 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. |
Miscellaneousi
Keywords - Technical termi
3D-structure, Reference proteomeDocuments
- Human chromosome 2
Human chromosome 2: 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