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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:LIG1

Protein Summary

check button Gene summary
Gene name: LIG1
ASpdb.0 ID: 3978
Gene
Gene symbol

LIG1

Gene ID

3978

Gene nameDNA ligase 1
SynonymsIMD96|LIGI|hLig1
Cytomap

19q13.33

Type of geneprotein-coding
DescriptionDNA ligase 1ligase I, DNA, ATP-dependentpolydeoxyribonucleotide synthase [ATP] 1
Modification date20240407
UniProtAcc

P18858


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneLIG1

GO:0003909

DNA ligase activity

9809069

GeneLIG1

GO:0005654

nucleoplasm

-

GeneLIG1

GO:0006284

base-excision repair

19589734

GeneLIG1

GO:0033151

V(D)J recombination

9809069

GeneLIG1

GO:0043231

intracellular membrane-bounded organelle

-



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P18858-1P18858-1_6p0c_A.pdb6P0CX-ray1.55A262901

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P18858LIG1P18858-1P18858-2919801796801SubstitutionLGTGFSVLGNWG796801
P18858LIG1P18858-1P18858-2919801802919Deletionnonenone801801
P18858LIG1P18858-1P18858-3919888736Deletionnonenone66
P18858LIG1P18858-1P18858-3919888153153Deletionnonenone122122

check buttonMultiple sequence alignment of our canonical and alternatively spliced LIG1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of LIG1
UniProt-idENSGENSTENSP
P18858-1ENSG00000105486.15ENST00000263274.12ENSP00000263274.6
P18858-1ENSG00000105486.15ENST00000699868.1ENSP00000514664.1
P18858-2ENSG00000105486.15ENST00000601091.5ENSP00000471836.1
P18858-3ENSG00000105486.15ENST00000427526.6ENSP00000442841.1

UniProt-idNM IDNP ID
P18858-1NM_000234.2NP_000225.1
P18858-3NM_001289063.1NP_001275992.1

check buttonAmino acid sequences of our canonical and alternatively spliced LIG1
accession_idProtein sequence
P18858-1MQRSIMSFFHPKKEGKAKKPEKEASNSSRETEPPPKAALKEWNGVVSESDSPVKRPGRKAARVLGSEGEEEDEALSPAKGQKPALDCSQV
SPPRPATSPENNASLSDTSPMDSSPSGIPKRRTARKQLPKRTIQEVLEEQSEDEDREAKRKKEEEEEETPKESLTEAEVATEKEGEDGDQ
PTTPPKPLKTSKAETPTESVSEPEVATKQELQEEEEQTKPPRRAPKTLSSFFTPRKPAVKKEVKEEEPGAPGKEGAAEGPLDPSGYNPAK
NNYHPVEDACWKPGQKVPYLAVARTFEKIEEVSARLRMVETLSNLLRSVVALSPPDLLPVLYLSLNHLGPPQQGLELGVGDGVLLKAVAQ
ATGRQLESVRAEAAEKGDVGLVAENSRSTQRLMLPPPPLTASGVFSKFRDIARLTGSASTAKKIDIIKGLFVACRHSEARFIARSLSGRL
RLGLAEQSVLAALSQAVSLTPPGQEFPPAMVDAGKGKTAEARKTWLEEQGMILKQTFCEVPDLDRIIPVLLEHGLERLPEHCKLSPGIPL
KPMLAHPTRGISEVLKRFEEAAFTCEYKYDGQRAQIHALEGGEVKIFSRNQEDNTGKYPDIISRIPKIKLPSVTSFILDTEAVAWDREKK
QIQPFQVLTTRKRKEVDASEIQVQVCLYAFDLIYLNGESLVREPLSRRRQLLRENFVETEGEFVFATSLDTKDIEQIAEFLEQSVKDSCE
GLMVKTLDVDATYEIAKRSHNWLKLKKDYLDGVGDTLDLVVIGAYLGRGKRAGRYGGFLLASYDEDSEELQAICKLGTGFSDEELEEHHQ
SLKALVLPSPRPYVRIDGAVIPDHWLDPSAVWEVKCADLSLSPIYPAARGLVDSDKGISLRFPRFIRVREDKQPEQATTSAQVACLYRKQ
P18858-2MQRSIMSFFHPKKEGKAKKPEKEASNSSRETEPPPKAALKEWNGVVSESDSPVKRPGRKAARVLGSEGEEEDEALSPAKGQKPALDCSQV
SPPRPATSPENNASLSDTSPMDSSPSGIPKRRTARKQLPKRTIQEVLEEQSEDEDREAKRKKEEEEEETPKESLTEAEVATEKEGEDGDQ
PTTPPKPLKTSKAETPTESVSEPEVATKQELQEEEEQTKPPRRAPKTLSSFFTPRKPAVKKEVKEEEPGAPGKEGAAEGPLDPSGYNPAK
NNYHPVEDACWKPGQKVPYLAVARTFEKIEEVSARLRMVETLSNLLRSVVALSPPDLLPVLYLSLNHLGPPQQGLELGVGDGVLLKAVAQ
ATGRQLESVRAEAAEKGDVGLVAENSRSTQRLMLPPPPLTASGVFSKFRDIARLTGSASTAKKIDIIKGLFVACRHSEARFIARSLSGRL
RLGLAEQSVLAALSQAVSLTPPGQEFPPAMVDAGKGKTAEARKTWLEEQGMILKQTFCEVPDLDRIIPVLLEHGLERLPEHCKLSPGIPL
KPMLAHPTRGISEVLKRFEEAAFTCEYKYDGQRAQIHALEGGEVKIFSRNQEDNTGKYPDIISRIPKIKLPSVTSFILDTEAVAWDREKK
QIQPFQVLTTRKRKEVDASEIQVQVCLYAFDLIYLNGESLVREPLSRRRQLLRENFVETEGEFVFATSLDTKDIEQIAEFLEQSVKDSCE
P18858-3MQRSIMAALKEWNGVVSESDSPVKRPGRKAARVLGSEGEEEDEALSPAKGQKPALDCSQVSPPRPATSPENNASLSDTSPMDSSPSGIPK
RRTARKQLPKRTIQEVLEEQSEDEDREAKRKKEEEEETPKESLTEAEVATEKEGEDGDQPTTPPKPLKTSKAETPTESVSEPEVATKQEL
QEEEEQTKPPRRAPKTLSSFFTPRKPAVKKEVKEEEPGAPGKEGAAEGPLDPSGYNPAKNNYHPVEDACWKPGQKVPYLAVARTFEKIEE
VSARLRMVETLSNLLRSVVALSPPDLLPVLYLSLNHLGPPQQGLELGVGDGVLLKAVAQATGRQLESVRAEAAEKGDVGLVAENSRSTQR
LMLPPPPLTASGVFSKFRDIARLTGSASTAKKIDIIKGLFVACRHSEARFIARSLSGRLRLGLAEQSVLAALSQAVSLTPPGQEFPPAMV
DAGKGKTAEARKTWLEEQGMILKQTFCEVPDLDRIIPVLLEHGLERLPEHCKLSPGIPLKPMLAHPTRGISEVLKRFEEAAFTCEYKYDG
QRAQIHALEGGEVKIFSRNQEDNTGKYPDIISRIPKIKLPSVTSFILDTEAVAWDREKKQIQPFQVLTTRKRKEVDASEIQVQVCLYAFD
LIYLNGESLVREPLSRRRQLLRENFVETEGEFVFATSLDTKDIEQIAEFLEQSVKDSCEGLMVKTLDVDATYEIAKRSHNWLKLKKDYLD
GVGDTLDLVVIGAYLGRGKRAGRYGGFLLASYDEDSEELQAICKLGTGFSDEELEEHHQSLKALVLPSPRPYVRIDGAVIPDHWLDPSAV

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
LIG1 (go to UniProt):P18858

check buttonRetention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
P18858Region1270Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=7;End=36
P18858Region1270Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=153;End=153
P18858Compositional bias929Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=7;End=36
P18858Compositional bias128180Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=153;End=153


Gene Isoform Structures and Expression Levels for LIG1

check buttonGene structures of our canonical and alternative spliced genes of LIG1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of LIG1

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of P18858-1
3D view using mol* of P18858-2
3D view using mol* of P18858-3


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of P18858-1
all structure
pLDDT distribution across the protein length of P18858-2
all structure
pLDDT distribution across the protein length of P18858-3
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of P18858-1
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
P18858-11.1191140.901282.9750.3520.8761.1680.1121.7330.0651.613715,718,719,720,746,747,748,754,755,845,846,847,84
8,849,871,896,899,900,901,902
P18858-20.9943181.008883.2250.6210.6880.8870.391.0580.3680.835332,335,336,337,338,339,340,341,342,343,344,345,34
6,347,348,349,408,445,446,456,457,460,504,507,508,
511,512,513,541,542,543,544,545,546,566,567,568,56
9,570,571,572,573,588,589,590,591,592,593,594,595,
596,597,621,635,638,639,641,643,644,645,660,720,72
3,725,734,735,736,737,738,739,741,742,744,746
P18858-31.0531801.017444.1850.5070.7770.9860.3271.1940.2741.126539,603,604,605,606,609,684,687,688,689,715,716,71
7,723,724,814,815,816,817,818,819,820,840,841,865,
866,868,869,870,871,872,875

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of P18858-1_P18858-1_6p0c_A.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P18858-1_6p0c_A_P18858-2.pdb
3D view using mol* of P18858-1_6p0c_A_P18858-3.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P18858-1_P18858-2.pdb
3D view using mol* of P18858-1_P18858-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P18858-1_vs_P18858-2.png
all structure<
./stats/secondary_structure/figure/P18858-1_vs_P18858-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P18858-1_vs_P18858-2.png
all structure<
./stats/relative_asa/P18858-1_vs_P18858-3.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to LIG1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P18858LIG1DB01280Nelarabineapproved, investigationalinhibitor
P18858LIG1DB00290Bleomycinapproved, investigationalinhibitor

Related Diseases to LIG1


check button Previous studies relating to the alternative splicing of LIG1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in LIG1


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance