Summary: LIM domain
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LIM domain Edit Wikipedia article
LIM domain | |||||||||||
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![]() Structure of the 4th LIM domain of Pinch protein. Zinc atoms are shown in grey | |||||||||||
Identifiers | |||||||||||
Symbol | LIM | ||||||||||
Pfam | PF00412 | ||||||||||
InterPro | IPR001781 | ||||||||||
PROSITE | PDOC50178 | ||||||||||
SCOPe | 1ctl / SUPFAM | ||||||||||
CDD | cd08368 | ||||||||||
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LIM domains are protein structural domains, composed of two contiguous zinc finger domains, separated by a two-amino acid residue hydrophobic linker.[1] They are named after their initial discovery in the proteins Lin11, Isl-1 & Mec-3.[2] LIM-domain containing proteins have been shown to play roles in cytoskeletal organisation, organ development and oncogenesis. LIM-domains mediate protein–protein interactions that are critical to cellular processes.
LIM domains have highly divergent sequences, apart from certain key residues. The sequence divergence allow a great many different binding sites to be grafted onto the same basic domain. The conserved residues are those involved in zinc binding or the hydrophobic core of the protein. The sequence signature of LIM domains is as follows:
[C]-[X]2–4-[C]-[X]13–19-[W]-[H]-[X]2–4-[C]-[F]-[LVI]-[C]-[X]2–4-[C]-[X]13–20-C-[X]2–4-[C]
LIM domains frequently occur in multiples, as seen in proteins such as TES, LMO4, and can also be attached to other domains in order to confer a binding or targeting function upon them, such as LIM-kinase.
The LIM superclass of genes have been classified into 14 classes: ABLIM, CRP, ENIGMA, EPLIN, LASP, LHX, LMO, LIMK, LMO7, MICAL, PXN, PINCH, TES, and ZYX. Six of these classes (i.e., ABLIM, MICAL, ENIGMA, ZYX, LHX, LM07) originated in the stem lineage of animals, and this expansion is thought to have made a major contribution to the origin of animal multicellularity.[3]
LIM domains are also found in various bacterial lineages where they are typically fused to a metallopeptidase domain. Some versions show fusions to an inactive P-loop NTPase at their N-terminus and a single transmembrane helix. These domain fusions suggest that the prokaryotic LIM domains are likely to regulate protein processing at the cell membrane. The domain architectural syntax is remarkably parallel to those of the prokaryotic versions of the B-box zinc finger and the AN1 zinc finger domains.[4]
References
- ^ Kadrmas JL, Beckerle MC (2004). "The LIM domain: from the cytoskeleton to the nucleus". Nat. Rev. Mol. Cell Biol. 5 (11): 920–31. doi:10.1038/nrm1499. PMID 15520811.
- ^ Bach I (2000). "The LIM domain: regulation by association". Mech. Dev. 91 (1–2): 5–17. doi:10.1016/S0925-4773(99)00314-7. PMID 10704826.
- ^ Koch BJ, Ryan JF, Baxevanis AD (March 2012). "The Diversification of the LIM Superclass at the Base of the Metazoa Increased Subcellular Complexity and Promoted Multicellular Specialization". PLoS ONE. 7 (3): e33261. Bibcode:2012PLoSO...733261K. doi:10.1371/journal.pone.0033261. PMC 3305314. PMID 22438907.
- ^ Burroughs AM, Iyer LM, Aravind L (July 2011). "Functional diversification of the RING finger and other binuclear treble clef domains in prokaryotes and the early evolution of the ubiquitin system". Mol. Biosyst. 7 (1): 2261–77. doi:10.1039/C1MB05061C. PMC 5938088. PMID 21547297.
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LIM domain Provide feedback
This family represents two copies of the LIM structural domain.
Literature references
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Perez-Alvarado GC, Miles C, Michelsen JW, Louis HA, Winge DR, Beckerle MC, Summers MF; , Nat Struct Biol 1994;1:388-398.: Structure of the carboxy-terminal Lim domain from the cysteine rich protein Crp. PUBMED:7664053 EPMC:7664053
Internal database links
SCOOP: | zf-dskA_traR |
External database links
HOMSTRAD: | LIM |
PROSITE: | PDOC00382 |
SCOP: | 1ctl |
This tab holds annotation information from the InterPro database.
InterPro entry IPR001781
Zinc finger (Znf) domains are relatively small protein motifs which contain multiple finger-like protrusions that make tandem contacts with their target molecule. Some of these domains bind zinc, but many do not; instead binding other metals such as iron, or no metal at all. For example, some family members form salt bridges to stabilise the finger-like folds. They were first identified as a DNA-binding motif in transcription factor TFIIIA from Xenopus laevis (African clawed frog), however they are now recognised to bind DNA, RNA, protein and/or lipid substrates [PUBMED:10529348, PUBMED:15963892, PUBMED:15718139, PUBMED:17210253, PUBMED:12665246]. Their binding properties depend on the amino acid sequence of the finger domains and of the linker between fingers, as well as on the higher-order structures and the number of fingers. Znf domains are often found in clusters, where fingers can have different binding specificities. There are many superfamilies of Znf motifs, varying in both sequence and structure. They display considerable versatility in binding modes, even between members of the same class (e.g. some bind DNA, others protein), suggesting that Znf motifs are stable scaffolds that have evolved specialised functions. For example, Znf-containing proteins function in gene transcription, translation, mRNA trafficking, cytoskeleton organisation, epithelial development, cell adhesion, protein folding, chromatin remodelling and zinc sensing, to name but a few [PUBMED:11179890]. Zinc-binding motifs are stable structures, and they rarely undergo conformational changes upon binding their target.
This entry represents LIM-type zinc finger (Znf) domains. LIM domains coordinate one or more zinc atoms, and are named after the three proteins (LIN-11, Isl1 and MEC-3) in which they were first found. They consist of two zinc-binding motifs that resemble GATA-like Znf's, however the residues holding the zinc atom(s) are variable, involving Cys, His, Asp or Glu residues. LIM domains are involved in proteins with differing functions, including gene expression, and cytoskeleton organisation and development [PUBMED:1970421, PUBMED:1467648]. Protein containing LIM Znf domains include:
- Caenorhabditis elegans mec-3; a protein required for the differentiation of the set of six touch receptor neurons in this nematode.
- C. elegans. lin-11; a protein required for the asymmetric division of vulval blast cells.
- Vertebrate insulin gene enhancer binding protein isl-1. Isl-1 binds to one of the two cis-acting protein-binding domains of the insulin gene.
- Vertebrate homeobox proteins lim-1, lim-2 (lim-5) and lim3.
- Vertebrate lmx-1, which acts as a transcriptional activator by binding to the FLAT element; a beta-cell-specific transcriptional enhancer found in the insulin gene.
- Mammalian LH-2, a transcriptional regulatory protein involved in the control of cell differentiation in developing lymphoid and neural cell types.
- Drosophila melanogaster (Fruit fly) protein apterous, required for the normal development of the wing and halter imaginal discs.
- Vertebrate protein kinases LIMK-1 and LIMK-2.
- Mammalian rhombotins. Rhombotin 1 (RBTN1 or TTG-1) and rhombotin-2 (RBTN2 or TTG-2) are proteins of about 160 amino acids whose genes are disrupted by chromosomal translocations in T-cell leukemia.
- Mammalian and avian cysteine-rich protein (CRP), a 192 amino-acid protein of unknown function. Seems to interact with zyxin.
- Mammalian cysteine-rich intestinal protein (CRIP), a small protein which seems to have a role in zinc absorption and may function as an intracellular zinc transport protein.
- Vertebrate paxillin, a cytoskeletal focal adhesion protein.
- Mus musculus (Mouse) testin which should not be confused with rat testin which is a thiol protease homologue (see INTERPRO).
- Helianthus annuus (Common sunflower) pollen specific protein SF3.
- Chicken zyxin. Zyxin is a low-abundance adhesion plaque protein which has been shown to interact with CRP.
- Yeast protein LRG1 which is involved in sporulation [PUBMED:8065929].
- Saccharomyces cerevisiae (Baker's yeast) rho-type GTPase activating protein RGA1/DBM1.
- C. elegans homeobox protein ceh-14.
- C. elegans homeobox protein unc-97.
- S. cerevisiae hypothetical protein YKR090w.
- C. elegans hypothetical proteins C28H8.6.
These proteins generally contain two tandem copies of the LIM domain in their N-terminal section. Zyxin and paxillin are exceptions in that they contain respectively three and four LIM domains at their C-terminal extremity. In apterous, isl-1, LH-2, lin-11, lim-1 to lim-3, lmx-1 and ceh-14 and mec-3 there is a homeobox domain some 50 to 95 amino acids after the LIM domains.
LIM domains contain seven conserved cysteine residues and a histidine. The arrangement followed by these conserved residues is:
C-x(2)-C-x(16,23)-H-x(2)-[CH]-x(2)-C-x(2)-C-x(16,21)-C-x(2,3)-[CHD]
LIM domains bind two zinc ions [PUBMED:8506279]. LIM does not bind DNA, rather it seems to act as an interface for protein-protein interaction.
Domain organisation
Below is a listing of the unique domain organisations or architectures in which this domain is found. More...
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Pfam Clan
This family is a member of clan Zn_Beta_Ribbon (CL0167), which has the following description:
A clan of zinc-binding ribbon domains.
The clan contains the following 87 members:
A2L_zn_ribbon Auto_anti-p27 Baculo_LEF5_C CpXC DNA_RNApol_7kD DUF1451 DUF1610 DUF1936 DUF2072 DUF2116 DUF2180 DUF2387 DUF2614 DUF35_N DUF3945 DUF4379 DZR DZR_2 Elf1 GATA Lar_restr_allev LIM Mu-like_Com NinF NOB1_Zn_bind Nudix_N_2 Ogr_Delta OrfB_Zn_ribbon PriA_CRR Prim_Zn_Ribbon RecO_C Ribosomal_L32p Ribosomal_L33 Ribosomal_L37ae Ribosomal_L37e Ribosomal_L40e Ribosomal_L44 Ribosomal_S27 Ribosomal_S27e RNA_POL_M_15KD Rubredoxin_2 Spt4 Stc1 TF_Zn_Ribbon TFIIS_C Tnp_zf-ribbon_2 Topo_Zn_Ribbon Toprim_Crpt Trm112p UPF0547 YjdM_Zn_Ribbon zf-C4 zf-C4_ClpX zf-C4_Topoisom zf-CHC2 zf-CSL zf-dskA_traR zf-FPG_IleRS zf-GRF zf-ISL3 zf-NADH-PPase zf-PARP zf-RanBP zf-ribbon_3 zf-RING_7 zf-RRN7 zf-TFIIB zf-trcl zf-ZPR1 zf_PR_Knuckle zf_Rg zinc-ribbon_6 zinc-ribbons_6 zinc_ribbon_10 zinc_ribbon_11 zinc_ribbon_12 zinc_ribbon_13 zinc_ribbon_15 zinc_ribbon_2 zinc_ribbon_4 zinc_ribbon_5 zinc_ribbon_9 Zn-ribbon_8 Zn_ribbon_recom Zn_ribbon_SprT Zn_Tnp_IS1 Zn_Tnp_IS1595Alignments
We store a range of different sequence alignments for families. As well as the seed alignment from which the family is built, we provide the full alignment, generated by searching the sequence database (reference proteomes) using the family HMM. We also generate alignments using four representative proteomes (RP) sets, the UniProtKB sequence database, the NCBI sequence database, and our metagenomics sequence database. More...
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We make a range of alignments for each Pfam-A family. You can see a description of each above. You can view these alignments in various ways but please note that some types of alignment are never generated while others may not be available for all families, most commonly because the alignments are too large to handle.
Seed (34) |
Full (65634) |
Representative proteomes | UniProt (103706) |
NCBI (190230) |
Meta (44) |
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RP15 (8549) |
RP35 (20464) |
RP55 (41736) |
RP75 (65251) |
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Jalview | |||||||||
HTML | |||||||||
PP/heatmap | 1 |
1Cannot generate PP/Heatmap alignments for seeds; no PP data available
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Seed (34) |
Full (65634) |
Representative proteomes | UniProt (103706) |
NCBI (190230) |
Meta (44) |
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RP15 (8549) |
RP35 (20464) |
RP55 (41736) |
RP75 (65251) |
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Raw Stockholm | |||||||||
Gzipped |
You can also download a FASTA format file containing the full-length sequences for all sequences in the full alignment.
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Trees
This page displays the phylogenetic tree for this family's seed alignment. We use FastTree to calculate neighbour join trees with a local bootstrap based on 100 resamples (shown next to the tree nodes). FastTree calculates approximately-maximum-likelihood phylogenetic trees from our seed alignment.
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Curation and family details
This section shows the detailed information about the Pfam family. You can see the definitions of many of the terms in this section in the glossary and a fuller explanation of the scoring system that we use in the scores section of the help pages.
Curation
Seed source: | Prosite |
Previous IDs: | none |
Type: | Domain |
Sequence Ontology: | SO:0000417 |
Author: |
Finn RD |
Number in seed: | 34 |
Number in full: | 65634 |
Average length of the domain: | 57.20 aa |
Average identity of full alignment: | 26 % |
Average coverage of the sequence by the domain: | 22.03 % |
HMM information
HMM build commands: |
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 47079205 -E 1000 --cpu 4 HMM pfamseq
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Model details: |
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Model length: | 58 | ||||||||||||
Family (HMM) version: | 23 | ||||||||||||
Download: | download the raw HMM for this family |
Species distribution
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Interactions
Structures
For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the LIM domain has been found. There are 119 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein sequence.
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