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Entry version 98 (31 Jul 2019)
Sequence version 1 (05 Jul 2004)
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Protein

Krev interaction trapped protein 1

Gene

KRIT1

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Component of the CCM signaling pathway which is a crucial regulator of heart and vessel formation and integrity. Negative regulator of angiogenesis. Inhibits endothelial proliferation, apoptosis, migration, lumen formation and sprouting angiogenesis in primary endothelial cells. Promotes AKT phosphorylation in a NOTCH-dependent and independent manner, and inhibits ERK1/2 phosphorylation indirectly through activation of the DELTA-NOTCH cascade. Acts in concert with CDH5 to establish and maintain correct endothelial cell polarity and vascular lumen and these effects are mediated by recruitment and activation of the Par polarity complex and RAP1B. Required for the localization of phosphorylated PRKCZ, PARD3, TIAM1 and RAP1B to the cell junction, and cell junction stabilization. Plays a role in integrin signaling via its interaction with ITGB1BP1; this prevents the interaction between ITGB1 and ITGB1BP1. Plays an important role in the maintenance of the intracellular reactive oxygen species (ROS) homeostasis to prevent oxidative cellular damage. Regulates the homeostasis of intracellular ROS through an antioxidant pathway involving FOXO1 and SOD2. Facilitates the down-regulation of cyclin-D1 (CCND1) levels required for cell transition from proliferative growth to quiescence by preventing the accumulation of intracellular ROS through the modulation of FOXO1 and SOD2 levels. Microtubule-associated protein that binds to phosphatidylinositol 4,5-bisphosphate (PIP2)-containing membranes in a GTP-bound RAP1-dependent manner (By similarity).By similarity

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processAngiogenesis

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Krev interaction trapped protein 1
Short name:
Krev interaction trapped 1
Alternative name(s):
Cerebral cavernous malformations 1 protein homolog
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:KRIT1
Synonyms:CCM1
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiBos taurus (Bovine)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9913 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000009136 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unplaced

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cell junction, Cell membrane, Cytoplasm, Cytoskeleton, Membrane

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000670221 – 736Krev interaction trapped protein 1Add BLAST736

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q6TNJ1

PRoteomics IDEntifications database

More...
PRIDEi
Q6TNJ1

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Found in a complex, at least composed of ITGB1BP1, KRIT1 and RAP1A.

Interacts (via C-terminus FERM domain) with RAP1A (active GTP-bound form preferentially); the interaction does not induce the opening conformation of KRIT1.

Interacts (via N-terminus NPXY motif) with ITGB1BP1; the interaction induces the opening conformation of KRIT1 and competes with ITGB1 for ITGB1BP1 interaction. Associates (via N-terminus and C-terminus regions) with microtubules; the interaction is inhibited in presence of ITGB1BP1 and active GTP-bound RAP1A.

Interacts (via FERM domain) with RAP1B.

Interacts with CDH5 (By similarity).

Interacts with HEG1 and CCM2; greatly facilitates CCM2-binding to HEG1 (By similarity).

Interacts with RAP1A.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9913.ENSBTAP00000003566

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q6TNJ1

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati287 – 316ANK 1Sequence analysisAdd BLAST30
Repeati320 – 350ANK 2Sequence analysisAdd BLAST31
Repeati354 – 384ANK 3Sequence analysisAdd BLAST31
Repeati388 – 419ANK 4Sequence analysisAdd BLAST32
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini420 – 734FERMPROSITE-ProRule annotationAdd BLAST315

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1 – 170N-terminal domain similar to Nudix hydrolase domainBy similarityAdd BLAST170
Regioni172 – 195Interaction with ITGB1BP1By similarityAdd BLAST24
Regioni430 – 452Interaction with RAP1BBy similarityAdd BLAST23

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The FERM domain mediates binding to RAP1A and RAP1B and is necessary for binding to phosphatidylinositol 4,5-bisphosphate (PIP2).By similarity
The N-terminal domain has structural similarity to the nudix hydrolase domain, despite the absence of a nudix box and low sequence similarity with nudix hydrolase domains. The N-terminus and the C-terminus part associate together via the NPAY binding motif and adopt a lose conformation that is disrupted by ITGB1BP1, but not by RAP1A.By similarity
Contains 4 ANK repeats that precede the FERM domain.By similarity

Keywords - Domaini

ANK repeat, Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG4335 Eukaryota
ENOG410ZV6V LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000252958

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q6TNJ1

KEGG Orthology (KO)

More...
KOi
K17705

Database of Orthologous Groups

More...
OrthoDBi
839317at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd14473 FERM_B-lobe, 1 hit
cd13197 FERM_C_CCM1, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.80.10, 1 hit
1.25.40.20, 1 hit
2.30.29.30, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR002110 Ankyrin_rpt
IPR020683 Ankyrin_rpt-contain_dom
IPR036770 Ankyrin_rpt-contain_sf
IPR019749 Band_41_domain
IPR014352 FERM/acyl-CoA-bd_prot_sf
IPR035963 FERM_2
IPR019748 FERM_central
IPR000299 FERM_domain
IPR041791 KRIT1_FERM_C
IPR032022 NUDIX
IPR011993 PH-like_dom_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00373 FERM_M, 1 hit
PF16705 NUDIX_5, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00248 ANK, 3 hits
SM00295 B41, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47031 SSF47031, 1 hit
SSF48403 SSF48403, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50297 ANK_REP_REGION, 1 hit
PS50088 ANK_REPEAT, 1 hit
PS50057 FERM_3, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

Q6TNJ1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGNPENIEDA YVAVIRPKNA ASLNSREYRA KSYEILLHEV PIEGQKKKRK
60 70 80 90 100
KVLLETKLQG NSEITQGISD YVVETTEPIS PANQGIRGKR VVLMKTFPLE
110 120 130 140 150
GEKVGREAAL FIVPSVVKDN TKYTYTPGCP IFYCLQDIMR VCSESSTHFA
160 170 180 190 200
TLTARMLIAL DKWLDERHTQ SHFIPALFRP SPLERIKTNV INPAYATESG
210 220 230 240 250
QAENSLHMGY SALEIKSKML ALEKADTCIY NPLFGSDLQY TNRVDKVVIN
260 270 280 290 300
PYFGLGAPDY SKIQIPKQEQ WQRSRSSVTE DKERQWVDDF PLHRSACEGD
310 320 330 340 350
SELLNRLLNE RFSVNQLDSD HWAPIHYACW YGKVEATRIL LEKGKCNPNL
360 370 380 390 400
LNGQLSSPLH FAAGGGHAEI VQILLNHPEI DRHITDQQGR SPLNICEENK
410 420 430 440 450
QNNWEEAAKL LKEAINKPYE KVRIYRMDGS YRSVELKHGN NTTVQQIMEG
460 470 480 490 500
MRLSQETQQY FTIWICSENL SLQLKPYHKP LQHVRDWPEI LAELTNLDPQ
510 520 530 540 550
RETPQLFLRR DVRLPLEVEK KIEDPLAILI LFDEARYNLL KGFYTAPDAK
560 570 580 590 600
LITLASLLLQ IVYGNYESKK HKQGFLNEEN LKSIVPITKL KSKAPHWTNR
610 620 630 640 650
ILHEYKNLST SEGVSKEMHH LQRMFLQNCW EIPTYGAAFF TGQIFTKASP
660 670 680 690 700
SNHKVIPVYV GVNIKGLHLL NMETKALLIS LKYGCFMWQL GDADSCFQIH
710 720 730
SMENKMSFIV HTKQAGLVVK LLVKLNGQLM PMERNS
Length:736
Mass (Da):84,291
Last modified:July 5, 2004 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iABDF4F1EC7B36F0C
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AY391713 mRNA Translation: AAR27294.1

NCBI Reference Sequences

More...
RefSeqi
NP_001001166.1, NM_001001166.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
407996

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bta:407996

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY391713 mRNA Translation: AAR27294.1
RefSeqiNP_001001166.1, NM_001001166.1

3D structure databases

SMRiQ6TNJ1
ModBaseiSearch...

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000003566

Proteomic databases

PaxDbiQ6TNJ1
PRIDEiQ6TNJ1

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi407996
KEGGibta:407996

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
889

Phylogenomic databases

eggNOGiKOG4335 Eukaryota
ENOG410ZV6V LUCA
HOGENOMiHOG000252958
InParanoidiQ6TNJ1
KOiK17705
OrthoDBi839317at2759

Family and domain databases

CDDicd14473 FERM_B-lobe, 1 hit
cd13197 FERM_C_CCM1, 1 hit
Gene3Di1.20.80.10, 1 hit
1.25.40.20, 1 hit
2.30.29.30, 1 hit
InterProiView protein in InterPro
IPR002110 Ankyrin_rpt
IPR020683 Ankyrin_rpt-contain_dom
IPR036770 Ankyrin_rpt-contain_sf
IPR019749 Band_41_domain
IPR014352 FERM/acyl-CoA-bd_prot_sf
IPR035963 FERM_2
IPR019748 FERM_central
IPR000299 FERM_domain
IPR041791 KRIT1_FERM_C
IPR032022 NUDIX
IPR011993 PH-like_dom_sf
PfamiView protein in Pfam
PF00373 FERM_M, 1 hit
PF16705 NUDIX_5, 1 hit
SMARTiView protein in SMART
SM00248 ANK, 3 hits
SM00295 B41, 1 hit
SUPFAMiSSF47031 SSF47031, 1 hit
SSF48403 SSF48403, 1 hit
PROSITEiView protein in PROSITE
PS50297 ANK_REP_REGION, 1 hit
PS50088 ANK_REPEAT, 1 hit
PS50057 FERM_3, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiKRIT1_BOVIN
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q6TNJ1
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 11, 2005
Last sequence update: July 5, 2004
Last modified: July 31, 2019
This is version 98 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome
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Main funding by: National Institutes of Health

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