P05997 (CO5A2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 29, 2013.
Version 151.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Collagen alpha-2(V) chain | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) [Reference proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 1499 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Type V collagen is a member of group I collagen (fibrillar forming collagen). It is a minor connective tissue component of nearly ubiquitous distribution. Type V collagen binds to DNA, heparan sulfate, thrombospondin, heparin, and insulin. Type V collagen is a key determinant in the assembly of tissue-specific matrices By similarity. |
| Subunit structure | Trimers of two alpha 1(V) and one alpha 2(V) chains in most tissues and trimers of one alpha 1(V), one alpha 2(V), and one alpha 3(V) chains in placenta. |
| Subcellular location | Secreted › extracellular space › extracellular matrix By similarity. |
| Domain | The C-terminal propeptide, also known as COLFI domain, have crucial roles in tissue growth and repair by controlling both the intracellular assembly of procollagen molecules and the extracellular assembly of collagen fibrils. It binds a calcium ion which is essential for its function By similarity. |
| Post-translational modification | Prolines at the third position of the tripeptide repeating unit (G-X-P) are hydroxylated in some or all of the chains. Probably 3-hydroxylated on Pro-919 and Pro-1156 by LEPREL1. |
| Involvement in disease | Ehlers-Danlos syndrome 1 (EDS1) [MIM:130000]: A connective tissue disorder characterized by hyperextensible skin, atrophic cutaneous scars due to tissue fragility and joint hyperlaxity. EDS1 is the severe form of classic Ehlers-Danlos syndrome. Ehlers-Danlos syndrome 2 (EDS2) [MIM:130010]: Mild form of classic Ehlers-Danlos syndrome. |
| Sequence similarities | Belongs to the fibrillar collagen family. Contains 1 fibrillar collagen NC1 domain. Contains 1 VWFC domain. |
| Sequence caution | The sequence AAH43613.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. The sequence AAY24185.1 differs from that shown. Reason: Erroneous gene model prediction. The sequence BAD92282.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 26 | 26 | |||||||||
| Chain | 27 – 1229 | 1203 | Collagen alpha-2(V) chain | PRO_0000005830 | |||||||
| Propeptide | 1230 – 1499 | 270 | C-terminal propeptide | PRO_0000005831 | |||||||
Regions | |||||||||||
| Domain | 39 – 97 | 59 | VWFC | ||||||||
| Domain | 1266 – 1499 | 234 | Fibrillar collagen NC1 | ||||||||
| Motif | 506 – 508 | 3 | Cell attachment site Potential | ||||||||
| Motif | 944 – 946 | 3 | Cell attachment site Potential | ||||||||
| Motif | 1067 – 1069 | 3 | Cell attachment site Potential | ||||||||
| Motif | 1070 – 1072 | 3 | Cell attachment site Potential | ||||||||
| Motif | 1100 – 1102 | 3 | Cell attachment site Potential | ||||||||
| Motif | 1127 – 1129 | 3 | Cell attachment site Potential | ||||||||
| Motif | 1136 – 1138 | 3 | Cell attachment site Potential | ||||||||
Sites | |||||||||||
| Metal binding | 1314 | 1 | Calcium By similarity | ||||||||
| Metal binding | 1316 | 1 | Calcium By similarity | ||||||||
| Metal binding | 1317 | 1 | Calcium; via carbonyl oxygen By similarity | ||||||||
| Metal binding | 1322 | 1 | Calcium By similarity | ||||||||
Amino acid modifications | |||||||||||
| Modified residue | 290 | 1 | Hydroxyproline | ||||||||
| Modified residue | 293 | 1 | Hydroxyproline | ||||||||
| Modified residue | 296 | 1 | Hydroxyproline | ||||||||
| Modified residue | 611 | 1 | Hydroxyproline | ||||||||
| Modified residue | 617 | 1 | Hydroxyproline | ||||||||
| Modified residue | 919 | 1 | 3-hydroxyproline; partial Ref.16 | ||||||||
| Modified residue | 1156 | 1 | 3-hydroxyproline; partial Ref.16 | ||||||||
| Glycosylation | 1262 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 1400 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Disulfide bond | 1296 ↔ 1328 | By similarity | |||||||||
| Disulfide bond | 1336 ↔ 1497 | By similarity | |||||||||
| Disulfide bond | 1405 ↔ 1450 | By similarity | |||||||||
Natural variations | |||||||||||
| Natural variant | 460 | 1 | P → S. Corresponds to variant rs35830636 [ dbSNP | Ensembl ]. | VAR_048799 | |||||||
| Natural variant | 512 | 1 | V → A. Ref.18 Corresponds to variant rs35852101 [ dbSNP | Ensembl ]. | VAR_057910 | |||||||
| Natural variant | 833 | 1 | P → L. Ref.18 | VAR_057911 | |||||||
| Natural variant | 956 | 1 | R → P. Corresponds to variant rs6434313 [ dbSNP | Ensembl ]. | VAR_048800 | |||||||
| Natural variant | 963 | 1 | G → R in EDS2. Ref.17 | VAR_013588 | |||||||
| Natural variant | 1230 | 1 | T → S. Ref.18 | VAR_057912 | |||||||
| Natural variant | 1432 | 1 | D → V. Ref.18 | VAR_057913 | |||||||
Experimental info | |||||||||||
| Sequence conflict | 292 | 1 | A → P AA sequence Ref.8 | ||||||||
| Sequence conflict | 361 | 1 | M → L in AAL13166. Ref.5 | ||||||||
| Sequence conflict | 430 | 1 | A → P in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 430 | 1 | A → P in AAA51859. Ref.4 | ||||||||
| Sequence conflict | 430 | 1 | A → P in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 463 – 466 | 4 | IRGQ → NSGL in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 463 – 466 | 4 | IRGQ → NSGL in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 463 | 1 | I → N in AAA51859. Ref.4 | ||||||||
| Sequence conflict | 472 – 474 | 3 | Missing in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 472 – 474 | 3 | Missing in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 512 | 1 | V → L in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 512 | 1 | V → L in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 608 | 1 | R → K in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 608 | 1 | R → K in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 613 | 1 | S → T in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 613 | 1 | S → T in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 623 | 1 | S → N in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 623 | 1 | S → N in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 635 | 1 | A → P in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 635 | 1 | A → P in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 649 | 1 | E → K in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 649 | 1 | E → K in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 653 | 1 | S → Y in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 653 | 1 | S → Y in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 656 | 1 | V → P in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 656 | 1 | V → P in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 662 | 1 | A → R in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 662 | 1 | A → R in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 679 | 1 | L → H in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 679 | 1 | L → H in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 700 | 1 | D → G in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 700 | 1 | D → G in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 797 | 1 | R → G in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 797 | 1 | R → G in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 811 – 812 | 2 | PT → LL in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 811 – 812 | 2 | PT → LL in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 853 | 1 | P → S in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 853 | 1 | P → S in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 943 | 1 | L → P in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 943 | 1 | L → P in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 955 | 1 | D → V in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 955 | 1 | D → V in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 1111 – 1112 | 2 | PP → HL in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 1111 – 1112 | 2 | PP → HL in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 1111 – 1112 | 2 | PP → HL in AAA52007. Ref.11 | ||||||||
| Sequence conflict | 1196 | 1 | I → L in CAA75002. Ref.1 | ||||||||
| Sequence conflict | 1196 | 1 | I → L in CAA28454. Ref.9 | ||||||||
| Sequence conflict | 1196 | 1 | I → L in AAA52007. Ref.11 | ||||||||
| Sequence conflict | 1421 | 1 | K → T in AAA52058. Ref.13 | ||||||||
| Sequence conflict | 1441 | 1 | F → S in AAA52058. Ref.13 | ||||||||
| Sequence conflict | 1467 | 1 | Q → E in AAA51858. Ref.14 | ||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | Richards A.J. Submitted (SEP-1997) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [2] | Totoki Y., Toyoda A., Takeda T., Sakaki Y., Tanaka A., Yokoyama S., Ohara O., Nagase T., Kikuno R.F. Submitted (MAR-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Brain. |
| [3] | "Generation and annotation of the DNA sequences of human chromosomes 2 and 4." Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., Du H. Wilson R.K.Nature 434:724-731(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "Amino-terminal propeptide of human pro-alpha 2(V) collagen conforms to the structural criteria of a fibrillar procollagen molecule." Woodbury D., Benson-Chanda V., Ramirez F. J. Biol. Chem. 264:2735-2738(1989) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1-463. |
| [5] | "Genomic organization of the human COL3A1 and COL5A2 genes: COL5A2 has evolved differently than the other minor fibrillar collagen genes." Valkkila M., Melkoniemi M., Kvist L., Kuivaniemi H., Tromp G., Ala-Kokko L. Matrix Biol. 20:357-366(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-104 AND 153-1499. |
| [6] | "Homology between alpha 2(V) and alpha 1(III) collagen promoters and evidence for negatively acting elements in the alpha 2(V) first intron and 5' flanking sequences." Greenspan D.S., Lee S.T., Lee B.S., Hoffman G.G. Gene Expr. 1:29-39(1991) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-32. |
| [7] | "Isolation of the alpha 3-chain of human type V collagen and characterization by partial sequencing." Mann K. Biol. Chem. Hoppe-Seyler 373:69-75(1992) [PubMed] [Europe PMC] [Abstract] Cited for: PROTEIN SEQUENCE OF 208-227. Tissue: Placenta. |
| [8] | "Diversity in the processing events at the N-terminus of type-V collagen." Moradi-Ameli M., Rousseau J.C., Kleman J.P., Champliaud M.-F., Boutillon M.-M., Bernillon J., Wallach J.M., van der Rest M. Eur. J. Biochem. 221:987-995(1994) [PubMed] [Europe PMC] [Abstract] Cited for: PROTEIN SEQUENCE OF 288-297 AND 609-620. Tissue: Bone. |
| [9] | "The pro alpha 2(V) collagen gene is evolutionarily related to the major fibrillar-forming collagens." Weil D., Bernard M.P., Gargano S., Ramirez F. Nucleic Acids Res. 15:181-198(1987) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 398-1499. |
| [10] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 878-1499. Tissue: Skin. |
| [11] | "Partial covalent structure of the human alpha 2 type V collagen chain." Myers J.C., Loidl H.R., Stolle C.A., Seyer J.M. J. Biol. Chem. 260:5533-5541(1985) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1005-1229, PROTEIN SEQUENCE OF 1006-1036. |
| [12] | "Human alpha 1(III) and alpha 2(V) procollagen genes are located on the long arm of chromosome 2." Emanuel B.S., Cannizzaro L.A., Seyer J.M., Myers J.C. Proc. Natl. Acad. Sci. U.S.A. 82:3385-3389(1985) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1006-1037. |
| [13] | "Complete primary structure of the human alpha 2 type V procollagen COOH-terminal propeptide." Myers J.C., Loidl H.R., Seyer J.M., Dion A.S. J. Biol. Chem. 260:11216-11222(1985) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1230-1499. |
| [14] | "Genetic distance of two fibrillar collagen loci, COL3A1 and COL5A2, located on the long arm of human chromosome 2." Tsipouras P., Schwartz R.C., Liddell A.C., Salkeld C.S., Weil D., Ramirez F. Genomics 3:275-277(1988) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1452-1499. |
| [15] | "Mutations of the alpha2(V) chain of type V collagen impair matrix assembly and produce Ehlers-Danlos syndrome type I." Michalickova K., Susic M., Willing M.C., Wenstrup R.J., Cole W.G. Hum. Mol. Genet. 7:249-255(1998) [PubMed] [Europe PMC] [Abstract] Cited for: INVOLVEMENT IN EDS1. |
| [16] | "A role for prolyl 3-hydroxylase 2 in post-translational modification of fibril-forming collagens." Fernandes R.J., Farnand A.W., Traeger G.R., Weis M.A., Eyre D.R. J. Biol. Chem. 286:30662-30669(2011) [PubMed] [Europe PMC] [Abstract] Cited for: HYDROXYLATION AT PRO-919 AND PRO-1156, MASS SPECTROMETRY. |
| [17] | "A single base mutation in COL5A2 causes Ehlers-Danlos syndrome type II." Richards A.J., Martin S., Nicholls A.C., Harrison J.B., Pope F.M., Burrows N.P. J. Med. Genet. 35:846-848(1998) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT EDS2 ARG-963. |
| [18] | "Sequence analysis of the COL5A2 gene in patients with spontaneous cervical artery dissections." Grond-Ginsbach C., Wigger F., Morcher M., von Pein F., Grau A., Hausser I., Brandt T. Neurology 58:1103-1105(2002) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS ALA-512; LEU-833; SER-1230 AND VAL-1432. |
| + | Additional computationally mapped references. |
Web resources
Cross-references
Sequence databases | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | Y14690 mRNA. Translation: CAA75002.1. AB209045 mRNA. Translation: BAD92282.1. Different initiation. AC064833 Genomic DNA. No translation available. AC133106 Genomic DNA. Translation: AAY24185.1. Sequence problems. J04478 mRNA. Translation: AAA51859.1. AY016288, AY016287 Genomic DNA. Translation: AAL13165.1. AY016295 AY016294 Genomic DNA. Translation: AAL13166.1.M58529 Genomic DNA. Translation: AAC41699.1. X04758 mRNA. Translation: CAA28454.1. BC043613 mRNA. Translation: AAH43613.1. Different initiation. M10956 mRNA. Translation: AAA52007.1. M11135 mRNA. Translation: AAA51857.1. M11718 mRNA. Translation: AAA52058.1. J03051 Genomic DNA. Translation: AAA51858.1. | ||||||||||||
| IPI | IPI00739099. | ||||||||||||
| PIR | CGHU2V. A31427. | ||||||||||||
| RefSeq | NP_000384.2. NM_000393.3. | ||||||||||||
| UniGene | Hs.445827. | ||||||||||||
3D structure databases | |||||||||||||
| PDBe RCSB PDB PDBj |
| ||||||||||||
| ProteinModelPortal | P05997. | ||||||||||||
| ModBase | Search... | ||||||||||||
PTM databases | |||||||||||||
| PhosphoSite | P05997. | ||||||||||||
Polymorphism databases | |||||||||||||
| DMDM | 143811378. | ||||||||||||
Proteomic databases | |||||||||||||
| PaxDb | P05997. | ||||||||||||
| PRIDE | P05997. | ||||||||||||
Protocols and materials databases | |||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||
Genome annotation databases | |||||||||||||
| Ensembl | ENST00000374866; ENSP00000364000; ENSG00000204262. | ||||||||||||
| GeneID | 1290. | ||||||||||||
| KEGG | hsa:1290. | ||||||||||||
| UCSC | uc002uqk.3. human. | ||||||||||||
Organism-specific databases | |||||||||||||
| CTD | 1290. | ||||||||||||
| GeneCards | GC02M189861. | ||||||||||||
| HGNC | HGNC:2210. COL5A2. | ||||||||||||
| MIM | 120190. gene. 130000. phenotype. 130010. phenotype. | ||||||||||||
| neXtProt | NX_P05997. | ||||||||||||
| Orphanet | 90309. Ehlers-Danlos syndrome type 1. 90318. Ehlers-Danlos syndrome type 2. | ||||||||||||
| PharmGKB | PA26725. | ||||||||||||
| GenAtlas | Search... | ||||||||||||
Phylogenomic databases | |||||||||||||
| eggNOG | NOG12793. | ||||||||||||
| HOVERGEN | HBG004933. | ||||||||||||
| InParanoid | P05997. | ||||||||||||
| KO | K06236. | ||||||||||||
| OMA | PDHKPVW. | ||||||||||||
| OrthoDB | EOG4K0QMS. | ||||||||||||
Enzyme and pathway databases | |||||||||||||
| Reactome | REACT_111045. Developmental Biology. REACT_111102. Signal Transduction. REACT_118779. Extracellular matrix organization. | ||||||||||||
Gene expression databases | |||||||||||||
| ArrayExpress | P05997. | ||||||||||||
| Bgee | P05997. | ||||||||||||
| Genevestigator | P05997. | ||||||||||||
| GermOnline | ENSG00000204262. Homo sapiens. | ||||||||||||
Family and domain databases | |||||||||||||
| InterPro | IPR008160. Collagen. IPR000885. Fib_collagen_C. IPR001007. VWF_C. [Graphical view] | ||||||||||||
| Pfam | PF01410. COLFI. 1 hit. PF01391. Collagen. 9 hits. PF00093. VWC. 1 hit. [Graphical view] | ||||||||||||
| ProDom | PD002078. Fib_collagen_C. 1 hit. [Graphical view] [Entries sharing at least one domain] | ||||||||||||
| SMART | SM00038. COLFI. 1 hit. SM00214. VWC. 1 hit. [Graphical view] | ||||||||||||
| PROSITE | PS51461. NC1_FIB. 1 hit. PS01208. VWFC_1. 1 hit. PS50184. VWFC_2. 1 hit. [Graphical view] | ||||||||||||
| ProtoNet | Search... | ||||||||||||
Other | |||||||||||||
| ChiTaRS | COL5A2. human. | ||||||||||||
| GenomeRNAi | 1290. | ||||||||||||
| NextBio | 5223. | ||||||||||||
| PMAP-CutDB | P05997. | ||||||||||||
| SOURCE | Search... | ||||||||||||
Entry information
| Entry name | CO5A2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: P05997 Secondary accession number(s): P78440 Q96QB3 | ||||||||
| Entry history |
| ||||||||
| Entry status | 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. | ||||||||
Relevant documents
| Human chromosome 2 Human chromosome 2: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| 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 |

Clusters with
