Q9JIH7 (WNK1_RAT) Reviewed, UniProtKB/Swiss-Prot
Last modified
January 25, 2012.
Version 102.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Serine/threonine-protein kinase WNK1 EC=2.7.11.1 Alternative name(s): Protein kinase lysine-deficient 1 Protein kinase with no lysine 1 | ||||
| Gene names |
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| Organism | Rattus norvegicus (Rat) | ||||
| Taxonomic identifier | 10116 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus |
Protein attributes
| Sequence length | 2126 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Serine/threonine kinase which plays an important role in the regulation of electrolyte homeostasis, cell signaling, survival and proliferation. Acts as an activator and inhibitor of sodium-coupled chloride cotransporters and potassium-coupled chloride cotransporters respectively. Activates SCNN1A, SCNN1B, SCNN1D and SGK1. Controls sodium and chloride ion transport by inhibiting the activity of WNK4, by either phosphorylating the kinase or via an interaction between WNK4 and the autoinhibitory domain of WNK1. WNK4 regulates the activity of the thiazide-sensitive Na-Cl cotransporter, SLC12A3, by phosphorylation. WNK1 may also play a role in actin cytoskeletal reorganization. Phosphorylates NEDD4L. Ref.5 Ref.6 |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. Ref.1 |
| Cofactor | Magnesium. Ref.1 |
| Enzyme regulation | By hypertonicity. Activation requires autophosphorylation of Ser-382. Phosphorylation of Ser-378 also promotes increased activity. Ref.1 Ref.4 |
| Subunit structure | Interacts with SYT2. Interacts with WNK3 and WNK4. Ref.5 Ref.7 |
| Subcellular location | |
| Post-translational modification | Phosphorylated upon DNA damage, probably by ATM or ATR By similarity. Ref.4 |
| Sequence similarities | Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. WNK subfamily. Contains 1 protein kinase domain. |
| Caution | Cys-250 is present instead of the conserved Lys which is expected to be an active site residue. Lys-233 appears to fulfill the required catalytic function. Ref.1 Ref.4 HSN2 was originally thought to be an intronless gene lying within a WNK1 gene intron. It has been shown to be an alternative exon of the WNK1 gene in other mammalian species, including human and mouse. Isoforms bearing this exon (isoform 2 and isoform 3 in this entry) are specifically expressed in the nervous system in these species. system. |
| Sequence caution | The sequence DAA04492.1 differs from that shown. Reason: Erroneous gene model prediction. Includes 3' and 3' intronic sequences. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| Syt2 | P29101 | 9 | EBI-457953,EBI-458017 |
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9JIH7-1) 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: Q9JIH7-3) Also known as: Brain and spinal cord variant; The sequence of this isoform differs from the canonical sequence as follows: 714-714: M → MPRRGRSMSV...SSGGSALHPQ | ||||||
| Note: This isoform which includes the HSN2 exon has been identified in human and mouse. The sequence shown here is the result of gene prediction. | ||||||
| Isoform 3 (identifier: Q9JIH7-2) Also known as: Dorsal root ganglia and sciatic nerve variant; DRG and sciatic nerve variant; The sequence of this isoform differs from the canonical sequence as follows: 714-714: M → MPQSVAHPCG...SSGGSALHPQ 782-782: Q → QGFPSRLPPQ...TTSSQQAVLE | ||||||
| Note: This isoform which includes the HSN2 exon has been identified in human and mouse. The sequence shown here is the result of gene prediction. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Molecule processing | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 2126 | 2126 | Serine/threonine-protein kinase WNK1 | PRO_0000086821 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Regions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Domain | 221 – 479 | 259 | Protein kinase | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Nucleotide binding | 227 – 235 | 9 | ATP By similarity UniProtKB Q8TDX7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Sites | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Active site | 349 | 1 | Proton acceptor By similarity UniProtKB Q8TDX7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Binding site | 233 | 1 | ATP Ref.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Amino acid modifications | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 17 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 165 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 172 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 378 | 1 | Phosphoserine; by autocatalysis Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 382 | 1 | Phosphoserine; by autocatalysis Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1007 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1043 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1046 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1723 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1755 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1756 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1771 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1773 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1776 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1782 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 1865 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Modified residue | 2116 | 1 | Phosphoserine By similarity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Natural variations | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 714 | 1 | M → MPRRGRSMSVCVPHLSAVPS LSRISPSAPSTPPPVLSAPL CPSLLRSAPEETFAEKLSKA LESVLPMHSASQRKHRRSSL PSLFVTTPQSVAHPCGGTPT YPESQIFFPTIHERPVSFSP PPTCPPKVAISQRRKSTSFL EAQTRHFQPLLRTVGQNHLP PGGSPTNWTPEAIVMLGTTA NRVNRELCEMQVQPVFETTQ IYSDYRPGLVLAEEAHYFIP QETVYLAGVHYQAHAAGQYE GISYNSPVLSSPMKQITEQK PVPGCPASSSVFEFPSGQAF LVGHLQNLRLDSGPSPASPL SSISAPNSTDATHLKFHPVF VPHSAPAVLTHSNENRSNCV FEFHAQTPSSSSGEGGGILP QRVYRNRQVAVDSSQEELSP QSVGLHCHLQPVTEEQRNNH TPELTISVVEPMGQNWPVGS PEYSSDSSQITSSDISDFQS PPPTGGTAAPFGSDVSLPYI RLPQTVLQESPLFFCFPQGT TSQQVLSASYSSGGSALHPQ in isoform 2. | VSP_040279 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 714 | 1 | M → MPQSVAHPCGGTPTYPESQI FFPTIHERPVSFSPPPTCPP KVAISQRRKSTSFLEAQTRH FQPLLRTVGQNHLPPGGSPT NWTPEAIVMLGTTANRVNRE LCEMQVQPVFETTQIYSDYR PGLVLAEEAHYFIPQETVYL AGVHYQAHAAGQYEGISYNS PVLSSPMKQITEQKPVPGCP ASSSVFEFPSGQAFLVGHLQ NLRLDSGPSPASPLSSISAP NSTDATHLKFHPVFVPHSAP AVLTHSNENRSNCVFEFHAQ TPSSSSGEGGGILPQRVYRN RQVAVDSSQEELSPQSVGLH CHLQPVTEEQRNNHTPELTI SVVEPMGQNWPVGSPEYSSD SSQITSSDISDFQSPPPTGG TAAPFGSDVSLPYIRLPQTV LQESPLFFCFPQGTTSQQVL SASYSSGGSALHPQ in isoform 3. | VSP_040278 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Alternative sequence | 782 | 1 | Q → QGFPSRLPPQYPGDSNIAPS SNVASVCIHSTVLAPPPMPT EALATQGYFPTVVQPYVEST PLVPMGSVGGQVQVSQPAVS LSQQPPTTSSQQAVLE in isoform 3. | VSP_040280 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Experimental info | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 233 | 1 | K → G: Loss of kinase activity; when associated with K-250. Ref.1 Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 233 | 1 | K → M: Loss of kinase activity. Ref.1 Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 250 | 1 | C → A: No effect on kinase activity. Ref.1 Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 250 | 1 | C → K: Reduced kinase activity. Loss of kinase activity; when associated with G-233. Ref.1 Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 256 | 1 | K → M: No effect on kinase activity. Ref.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 259 | 1 | K → M: No effect on kinase activity. Ref.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 378 | 1 | S → A: Reduced kinase activity. Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 378 | 1 | S → D: Increased kinase activity. Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 382 | 1 | S → A: Loss of kinase activity. Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 382 | 1 | S → D: Loss of kinase activity. Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 524 | 1 | F → A: Reduced ability of autoinhibitory domain to regulate kinase activity. Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mutagenesis | 526 | 1 | F → A: Reduced ability of autoinhibitory domain to regulate kinase activity. Ref.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 1179 | 1 | S → F in AAF74258. Ref.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 1950 | 1 | V → I in AAF74258. Ref.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sequence conflict | 2120 | 1 | G → S in AAF74258. Ref.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Secondary structure | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Helix Strand Turn | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 220 – 229 | 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 231 – 240 | 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Turn | 241 – 243 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 246 – 253 | 8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 254 – 256 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 259 – 272 | 14 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 283 – 293 | 11 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 295 – 302 | 8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 309 – 316 | 8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 321 – 339 | 19 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 341 – 343 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 352 – 354 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 355 – 359 | 5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 364 – 366 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 371 – 374 | 4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Beta strand | 379 – 383 | 5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 392 – 396 | 5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 402 – 417 | 16 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Turn | 421 – 424 | 4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 428 – 435 | 8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Turn | 436 – 438 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 442 – 446 | 5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 450 – 459 | 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 464 – 466 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 470 – 474 | 5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Helix | 477 – 479 | 3 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "WNK1, a novel mammalian serine/threonine protein kinase lacking the catalytic lysine in subdomain II." Xu B.-E., English J.M., Wilsbacher J.L., Stippec S., Goldsmith E.J., Cobb M.H. J. Biol. Chem. 275:16795-16801(2000) [PubMed: 10828064] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), ENZYME REGULATION, SUBCELLULAR LOCATION, MUTAGENESIS OF LYS-233; CYS-250; LYS-256 AND LYS-259. |
| [2] | "Genome sequence of the Brown Norway rat yields insights into mammalian evolution." Gibbs R.A., Weinstock G.M., Metzker M.L., Muzny D.M., Sodergren E.J., Scherer S., Scott G., Steffen D., Worley K.C., Burch P.E., Okwuonu G., Hines S., Lewis L., Deramo C., Delgado O., Dugan-Rocha S., Miner G., Morgan M. Collins F.S.Nature 428:493-521(2004) [PubMed: 15057822] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA] OF 312-2126. Strain: Brown Norway. |
| [3] | "Identification of a novel gene (HSN2) causing hereditary sensory and autonomic neuropathy type II through the study of Canadian genetic isolates." Lafreniere R.G., MacDonald M.L.E., Dube M.-P., MacFarlane J., O'Driscoll M., Brais B., Meilleur S., Brinkman R.R., Dadivas O., Pape T., Platon C., Radomski C., Risler J., Thompson J., Guerra-Escobio A.-M., Davar G., Breakefield X.O., Pimstone S.N. Samuels M.E.Am. J. Hum. Genet. 74:1064-1073(2004) [PubMed: 15060842] [Abstract] Cited for: IDENTIFICATION OF THE HSN2 EXON. |
| [4] | "Regulation of WNK1 by an autoinhibitory domain and autophosphorylation." Xu B.-E., Min X., Stippec S., Lee B.H., Goldsmith E.J., Cobb M.H. J. Biol. Chem. 277:48456-48462(2002) [PubMed: 12374799] [Abstract] Cited for: ENZYME REGULATION, PHOSPHORYLATION AT SER-378 AND SER-382, MUTAGENESIS OF LYS-233; CYS-250; SER-378; SER-382; PHE-524 AND PHE-526. |
| [5] | "The thiazide-sensitive Na-Cl cotransporter is regulated by a WNK kinase signaling complex." Yang C.L., Zhu X., Ellison D.H. J. Clin. Invest. 117:3403-3411(2007) [PubMed: 17975670] [Abstract] Cited for: FUNCTION, INTERACTION WITH WNK3 AND WNK4. |
| [6] | "Serum and glucocorticoid-induced kinase (SGK) 1 and the epithelial sodium channel are regulated by multiple with no lysine (WNK) family members." Heise C.J., Xu B.E., Deaton S.L., Cha S.K., Cheng C.J., Earnest S., Sengupta S., Juang Y.C., Stippec S., Xu Y., Zhao Y., Huang C.L., Cobb M.H. J. Biol. Chem. 285:25161-25167(2010) [PubMed: 20525693] [Abstract] Cited for: FUNCTION. |
| [7] | "Crystal structure of the kinase domain of WNK1, a kinase that causes a hereditary form of hypertension." Min X., Lee B.-H., Cobb M.H., Goldsmith E.J. Structure 12:1303-1311(2004) [PubMed: 15242606] [Abstract] Cited for: X-RAY CRYSTALLOGRAPHY (1.8 ANGSTROMS) OF 194-483 OF MUTANT ALA-382, SUBUNIT. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | AF227741 mRNA. Translation: AAF74258.1. AC106348 Genomic DNA. No translation available. BK004106 Genomic DNA. Translation: DAA04492.1. Sequence problems. | ||||||||||||
| IPI | IPI00200557. IPI00972852. IPI00972854. | ||||||||||||
| RefSeq | NP_001002823.2. NM_001002823.2. NP_001186024.1. NM_001199095.1. NP_446246.2. NM_053794.2. | ||||||||||||
| UniGene | Rn.27409. | ||||||||||||
3D structure databases | |||||||||||||
| PDBe RCSB PDB PDBj |
| ||||||||||||
| ProteinModelPortal | Q9JIH7. | ||||||||||||
| ModBase | Search... | ||||||||||||
Protein-protein interaction databases | |||||||||||||
| IntAct | Q9JIH7. 6 interactions. | ||||||||||||
| STRING | Q9JIH7. | ||||||||||||
PTM databases | |||||||||||||
| PhosphoSite | Q9JIH7. | ||||||||||||
Proteomic databases | |||||||||||||
| PRIDE | Q9JIH7. | ||||||||||||
Protocols and materials databases | |||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||
Genome annotation databases | |||||||||||||
| Ensembl | ENSRNOT00000013621; ENSRNOP00000013622; ENSRNOG00000009956. | ||||||||||||
| GeneID | 116477. | ||||||||||||
| KEGG | rno:116477. | ||||||||||||
Organism-specific databases | |||||||||||||
| CTD | 65125. | ||||||||||||
| RGD | 621141. Wnk1. | ||||||||||||
Phylogenomic databases | |||||||||||||
| GeneTree | ENSGT00550000074385. | ||||||||||||
| HOVERGEN | HBG048577. | ||||||||||||
| OrthoDB | EOG4DFPN4. | ||||||||||||
Gene expression databases | |||||||||||||
| ArrayExpress | Q9JIH7. | ||||||||||||
| Genevestigator | Q9JIH7. | ||||||||||||
| GermOnline | ENSRNOG00000009956. Rattus norvegicus. | ||||||||||||
Family and domain databases | |||||||||||||
| InterPro | IPR011009. Kinase-like_dom. IPR024678. Kinase_OSR1/WNK_CCT. IPR000719. Prot_kinase_cat_dom. IPR017442. Se/Thr_kinase-like_dom. IPR008271. Ser/Thr_kinase_AS. [Graphical view] | ||||||||||||
| KO | K08867. | ||||||||||||
| Pfam | PF12202. OSR1_C. 1 hit. PF00069. Pkinase. 1 hit. [Graphical view] | ||||||||||||
| SUPFAM | SSF56112. Kinase_like. 1 hit. | ||||||||||||
| PROSITE | PS00107. PROTEIN_KINASE_ATP. False negative. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. 1 hit. [Graphical view] | ||||||||||||
| ProtoNet | Search... | ||||||||||||
Other | |||||||||||||
| NextBio | 619039. | ||||||||||||
Entry information
| Entry name | WNK1_RAT | ||||||||
| Accession | Primary (citable) accession number: Q9JIH7 Secondary accession number(s): Q6IFS7 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with