NCBI Conserved Domain Search (2024)

CCAAT-binding factor, subunit C [Transcription];

CCAAT-binding factor, subunit C [Transcription];

 10 20 30 40 50 60 70 80 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  6 NVNQGLQGTARDILTTYWQHVINHLESDNHD-YKIHQLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAW 84Cdd:COG5208  73 NVMQGLVGLLDERISRYWQQTIKAAEEERQIlLKDHNLPLARIKKVMKTDEDVKMISAEAPVLFAKITEIFIEELTMRAW 152

 90 100 110 ....*....|....*....|....*....|....*gi 2222679194  85 IHAEDNKRRTLQRSDIAAALSKSDMFDFLIDIVPR 119Cdd:COG5208 153 INAEENKRRTLQKSDIAAAVKKSEMFDFLIDIVPR 187

CCAAT-binding factor, subunit C [Transcription];

CCAAT-binding factor, subunit C [Transcription];

 10 20 30 40 50 60 70 80 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  6 NVNQGLQGTARDILTTYWQHVINHLESDNHD-YKIHQLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAW 84Cdd:COG5208  73 NVMQGLVGLLDERISRYWQQTIKAAEEERQIlLKDHNLPLARIKKVMKTDEDVKMISAEAPVLFAKITEIFIEELTMRAW 152

 90 100 110 ....*....|....*....|....*....|....*gi 2222679194  85 IHAEDNKRRTLQRSDIAAALSKSDMFDFLIDIVPR 119Cdd:COG5208 153 INAEENKRRTLQKSDIAAAVKKSEMFDFLIDIVPR 187

histone-fold domain found in nuclear transcription factor Y subunit gamma (NF-YC) and similar ...

histone-fold domain found in nuclear transcription factor Y subunit gamma (NF-YC) and similar proteins; NF-YC, also called CAAT box DNA-binding protein subunit C, or nuclear transcription factor Y subunit C, or transactivator HSM-1/2, is a component of the sequence-specific heterotrimeric transcription factor (NF-Y) which specifically recognizes a 5'-CCAAT-3' box motif found in the promoters of its target genes. NF-Y can function as both an activator and a repressor, depending on its interacting cofactors. NF-Y is a heterotrimeric transcription factor composed of three components, NF-YA, NF-YB and NF-YC. NF-YB and NF-YC must interact and dimerize for NF-YA association and DNA binding. The family also includes NF-YC hom*ologs such as Aspergillus fumigatus CCAAT-binding complex (CBC) subunit HapE and Saccharomyces cerevisiae transcriptional activator Hap5. HapE is a component of CBC, which is composed of the histone-like subunits HapC and HapE as well as the DNA specificity conferring subunit HapB. In yeast, Hap5 is a component of the CCAT-binding factor (CBF or HAP complex II), which is a transcriptional activator and binds to the upstream activation site (UAS2) of the CYC1 gene and other genes involved in mitochondrial electron transport and activates their expression. It recognizes the sequence 5'-CCAAT-3'. Hap5 is essential for DNA-binding activity.

 10 20 30 40 50 60 70 80 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  35 HDYKIHQLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFLI 114Cdd:cd22908  1 SDFKNHELPLARIKKIMKSDEDVKMISAEAPVLFAKACELFILELTLRAWIHTEENKRRTLQRSDIAAAITSSDMFDFLI 80

 ....gi 2222679194 115 DIVP 118Cdd:cd22908  81 DIVP 84

Core histone H2A/H2B/H3/H4;

Core histone H2A/H2B/H3/H4;

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  36 DYKIHQLPLARI-KKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAAL 104Cdd:pfam00125  54 DLLIYKLPFARVvREVVQSTKTDLRISADAVVALQEAVEDFLVELFEEANLLAIHAKRVTLTPKDIQLAR 123

CCAAT-binding factor, subunit C [Transcription];

CCAAT-binding factor, subunit C [Transcription];

 10 20 30 40 50 60 70 80 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  6 NVNQGLQGTARDILTTYWQHVINHLESDNHD-YKIHQLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAW 84Cdd:COG5208  73 NVMQGLVGLLDERISRYWQQTIKAAEEERQIlLKDHNLPLARIKKVMKTDEDVKMISAEAPVLFAKITEIFIEELTMRAW 152

 90 100 110 ....*....|....*....|....*....|....*gi 2222679194  85 IHAEDNKRRTLQRSDIAAALSKSDMFDFLIDIVPR 119Cdd:COG5208 153 INAEENKRRTLQKSDIAAAVKKSEMFDFLIDIVPR 187

histone-fold domain found in nuclear transcription factor Y subunit gamma (NF-YC) and similar ...

histone-fold domain found in nuclear transcription factor Y subunit gamma (NF-YC) and similar proteins; NF-YC, also called CAAT box DNA-binding protein subunit C, or nuclear transcription factor Y subunit C, or transactivator HSM-1/2, is a component of the sequence-specific heterotrimeric transcription factor (NF-Y) which specifically recognizes a 5'-CCAAT-3' box motif found in the promoters of its target genes. NF-Y can function as both an activator and a repressor, depending on its interacting cofactors. NF-Y is a heterotrimeric transcription factor composed of three components, NF-YA, NF-YB and NF-YC. NF-YB and NF-YC must interact and dimerize for NF-YA association and DNA binding. The family also includes NF-YC hom*ologs such as Aspergillus fumigatus CCAAT-binding complex (CBC) subunit HapE and Saccharomyces cerevisiae transcriptional activator Hap5. HapE is a component of CBC, which is composed of the histone-like subunits HapC and HapE as well as the DNA specificity conferring subunit HapB. In yeast, Hap5 is a component of the CCAT-binding factor (CBF or HAP complex II), which is a transcriptional activator and binds to the upstream activation site (UAS2) of the CYC1 gene and other genes involved in mitochondrial electron transport and activates their expression. It recognizes the sequence 5'-CCAAT-3'. Hap5 is essential for DNA-binding activity.

 10 20 30 40 50 60 70 80 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  35 HDYKIHQLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFLI 114Cdd:cd22908  1 SDFKNHELPLARIKKIMKSDEDVKMISAEAPVLFAKACELFILELTLRAWIHTEENKRRTLQRSDIAAAITSSDMFDFLI 80

 ....gi 2222679194 115 DIVP 118Cdd:cd22908  81 DIVP 84

histone-fold domain found in DNA polymerase epsilon subunit 4 (POLE4) and similar proteins; ...

histone-fold domain found in DNA polymerase epsilon subunit 4 (POLE4) and similar proteins; POLE4, also called DNA polymerase II subunit 4, or DNA polymerase epsilon subunit p12, may participate in DNA repair and in chromosomal DNA replication. It is an accessory component of the DNA polymerase epsilon complex that consists of four subunits: the catalytic subunit POLE and the accessory subunits POLE2, POLE3 and POLE4. POLE4 forms a complex with POLE3. The POLE3-POLE4 is a histone chaperone that promotes tetrasome formation and DNA supercoiling in vitro. Interaction with POLE3 is a prerequisite for further binding with POLE and POLE2. In fungi, POLE4 has been named as DNA polymerase epsilon subunit C (DPB3, also known as DNA polymerase II subunit C). It is an accessory component of the DNA polymerase epsilon (DNA polymerase II) that participates in chromosomal DNA replication. DNA polymerase epsilon is a heterotetramer consisting of POL2, DPB2, DPB3 and DPB4. DPB3 is required during synthesis of the leading and lagging DNA strands at the replication fork and binds at/or near replication origins and moves along DNA with the replication fork. It has 3'-5' proofreading exonuclease activity that correct errors arising during DNA replication. It is also involved in DNA synthesis during DNA repair. This subfamily also includes protein DLS1 (DPB3-like subunit of ISW2 complex 1). It functions as a component of the ISW2 complex, which at least consists of ISW2, ITC1, DLS1 and DPB4, and acts in remodeling the chromatin by catalyzing an ATP-dependent alteration in the structure of nucleosomal DNA. The ISW2 complex is involved in coordinating transcriptional repression and in inheritance of telomeric silencing. It is involved in repression of MAT a-specific genes, INO1, and early meiotic genes during mitotic growth dependent upon transcription factor UME6 and in a parallel pathway to the RPD3-SIN3 histone deacetylase complex. DLS1 is partially required for the ISW2 complex chromatin remodeling activity and is not required for its interaction with chromatin.

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..gi 2222679194  41 QLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFLIDIV 117Cdd:cd22929  3 KLPLSRVKRIMKLDPDVTLVSQEAVVAIAKATELFIQLLAKEAYSVAQQSKRKTLQLKDIDAAIKSDDRFAFLEDVL 79

Core histone H2A/H2B/H3/H4;

Core histone H2A/H2B/H3/H4;

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  36 DYKIHQLPLARI-KKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAAL 104Cdd:pfam00125  54 DLLIYKLPFARVvREVVQSTKTDLRISADAVVALQEAVEDFLVELFEEANLLAIHAKRVTLTPKDIQLAR 123

histone-fold domain found in Schizosaccharomyces pombe DNA polymerase epsilon subunit C (Dpb3) ...

histone-fold domain found in Schizosaccharomyces pombe DNA polymerase epsilon subunit C (Dpb3) and similar proteins; Schizosaccharomyces pombe Dpb3 is an accessory component of the DNA polymerase epsilon (DNA polymerase II) that is a heterotetramer consisting of cdc20/Pol2, Dpb2, Dpb3, and Dpb4, and participates in chromosomal DNA replication. Dpb3 is required during synthesis of the leading and lagging DNA strands at the replication fork and binds at/or near replication origins and moves along DNA with the replication fork. It has 3'-5' proofreading exonuclease activity that correct errors arising during DNA replication. It is also involved in DNA synthesis during DNA repair. The Dpb3-Dpb4 dimer associates with histone deacetylases, chromatin remodelers, and histones and plays a crucial role in the inheritance of histone hypoacetylation and H3K9 methylation in heterochromatin. The Dpb3-Dpb4 dimer is also required for the recruitment of sir2 to heterochromatin.

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..gi 2222679194  41 QLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFLIDIV 117Cdd:cd23645  2 VLPLARVKRIIKADKDVKICSKDAVFLISKATELFIEYLAEQAYELAKLEKRKTVQYKDLAKAVKRDDNLEFLEDVI 78

histone-fold domain found in Dr1-associated protein 1 (DRAP1) and similar proteins; DRAP1, ...

histone-fold domain found in Dr1-associated protein 1 (DRAP1) and similar proteins; DRAP1, also called Dr1-associated corepressor or negative cofactor 2-alpha (NC2-alpha), acts as a corepressor for Dr1 (down-regulator of transcription 1)-mediated repression of transcription. It forms a heterodimer with Dr1. The association of the Dr1/DRAP1 heterodimer with TBP results in a functional repression of both activated and basal transcription of class II genes. DRAP1 can bind to DNA on its own. It also binds TATA-binding protein-associated factor 172 (BTAF1).

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.gi 2222679194  43 PLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFL 113Cdd:cd22906  5 PAARIKKIMQSDEEVGKVAAAVPVLISKALELFLEDLLTKAAEVAKERNAKTITPSHLKQCVESEEKFDFL 75

histone-fold domain found in chromatin accessibility complex protein 1 (CHRAC-1) and similar ...

histone-fold domain found in chromatin accessibility complex protein 1 (CHRAC-1) and similar proteins; CHRAC-1, also called chromatin accessibility complex 15 kDa protein, or CHRAC-15, or DNA polymerase epsilon subunit p15, forms a complex with DNA polymerase epsilon subunit POLE3 and binds naked DNA, which is then incorporated into chromatin, aided by the nucleosome remodeling activity of ISWI/SNF2H and ACF1. Together with POLE3, ACF1 and ISWI/SNF2H proteins, CHRAC-1 forms the ISWI chromatin-remodeling complex, CHRAC. This subfamily also includes Drosophila melanogaster chromatin accessibility complex 16kD protein (CHRAC-16), which is a histone-like protein that promotes nucleosome sliding of ATP-dependent nucleosome remodeling complexes. It is part of the CHRAC, composed of CHRAC-14, CHRAC-16, ACF and ISWI, which uses energy/ATP to increase the general accessibility of DNA in chromatin. It forms a heterodimer with CHRAC-14, binds DNA, and facilitates nucleosome sliding by ACF. It is required for oogenesis.

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.gi 2222679194  42 LPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAwiHAEDNKRRTLQRSDIAAALSKSDMFDFLIDIV 117Cdd:cd22924  1 LPLSRVRTIMKSSPDVSSISQDAVFLITKATELFVEYLAKEA--YKKSKDKKKLTYKDLADVVNDDENLEFLLDIV 74

Histone-like transcription factor (CBF/NF-Y) and archaeal histone; This family includes ...

Histone-like transcription factor (CBF/NF-Y) and archaeal histone; This family includes archaebacterial histones and histone like transcription factors from eukaryotes.

 10 20 30 40 50 60 ....*....|....*....|....*....|....*....|....*....|....*....|...gi 2222679194  42 LPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAAL 104Cdd:pfam00808  3 LPIARVKRIMKSDPDAGRISQDAKELIAECVEEFIEFVASEAAEICNKAGRKTINPEHIKQAV 65

histone-fold domain found in DNA polymerase epsilon subunit 3 (POLE3) and similar proteins; ...

histone-fold domain found in DNA polymerase epsilon subunit 3 (POLE3) and similar proteins; POLE3, also called arsenic-transactivated protein (AsTP), chromatin accessibility complex 17 kDa protein (CHRAC-17), DNA polymerase II subunit 3, or DNA polymerase epsilon subunit p17, may participate in DNA repair and in chromosomal DNA replication. It is an accessory component of the DNA polymerase epsilon complex, which consists of four subunits: the catalytic subunit POLE and the accessory subunits POLE2, POLE3 and POLE4. It forms a complex with CHRAC1 and binds naked DNA, which is then incorporated into chromatin, aided by the nucleosome-remodeling activity of ISWI/SNF2H and ACF1. In fungi, POLE3 has been named as DNA polymerase epsilon subunit D (DPB4, also known as DNA polymerase II subunit D). DPB4 acts as an accessory component of the DNA polymerase epsilon (DNA polymerase II) that consists of POL2, DPB2, DPB3 and DPB4, and participates in chromosomal DNA replication. It also functions as a component of the ISW2 complex, which acts in remodeling the chromatin by catalyzing an ATP-dependent alteration in the structure of nucleosomal DNA.

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*gi 2222679194  40 HQLPLARIKKVMKAD-PEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFL 113Cdd:cd22928  3 LELPRAVITRIIKEAlPEGVQVSKDARLALSRAATVFILYLTAAANEIAKSNKRKTISADDVLKALEELEFDEFV 77

Class 2 transcription repressor NC2, alpha subunit (DRAP1 hom*olog) [Transcription];

Class 2 transcription repressor NC2, alpha subunit (DRAP1 hom*olog) [Transcription];

 10 20 30 40 50 60 70 80 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|gi 2222679194  33 DNHDYKIHQLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDF 112Cdd:COG5247  15 NSQKKKKTRFPIARLKKIMQLDEDIGKVGQSTPVIASKALEMFLTEIVGLSLKEARKKSSKRMTSEFLKRATESDEKFDF 94

 ....*gi 2222679194 113 LIDIV 117Cdd:COG5247  95 LKNME 99

histone fold domain (HFD) superfamily; The histone fold domain (HFD) is a structurally ...

histone fold domain (HFD) superfamily; The histone fold domain (HFD) is a structurally conserved interaction motif involved in heterodimerization of the core histones and their assembly into the nucleosome octamer. Histone fold heterodimers play crucial roles in gene regulation. The minimal HFD consists of three alpha helices connected by two short, unstructured loops. The HFD is found in core histones, TATA box-binding protein-associated factors (TAFs), and many other transcription factors. HFD plays a role in the nucleosomal core particle by conserving histone interactions; these contain more than one HFD. The structure of the nucleosome core particle has two modes that have the largest interaction surfaces, and these are the H3-H4 and H2A-H2B heterodimer interactions. Several TAFs interact via histone-fold (HF) motifs. Five HF-containing TAF pairs have been described in transcription factor II D (TFIID): TAF6-TAF9, TAF4-TAF12, TAF11-TAF13, TAF8-TAF10 and TAF3-TAF10.

 10 20 30 40 50 60 ....*....|....*....|....*....|....*....|....*....|....*....|....gi 2222679194  42 LPLARIKKVMKADPEVKmISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALS 105Cdd:cd00076  1 LLRSAVARILKSAGFDS-VSKSALELLSDLLERYLEELARAAKAYAELAGRTTPNAEDVELALE 63

Histone H2A [Chromatin structure and dynamics];

Histone H2A [Chromatin structure and dynamics];

 10 20 30 40 50 60 70 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....gi 2222679194  41 QLPLARIKKVMKADPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALSKSDMFDFLI 114Cdd:COG5262  26 IFPVGRVKRLLKKGNYRMRIGAGAPVYLAAVLEYLAAEILELAGNAARDNKKKRIIPRHLQLAIRNDEELNKLL 99

histone-fold domain mainly found in archaeal histone-fold proteins, histone-like transcription ...

histone-fold domain mainly found in archaeal histone-fold proteins, histone-like transcription regulators and similar proteins; The family includes many archaeal histone-fold proteins and histone-like transcription regulators, which may bind and compact DNA (95 to 150 base pairs) to form nucleosome-like structures that contain positive DNA supercoils. They can increase the resistance of DNA to thermal denaturation.

 10 20 30 40 50 60 ....*....|....*....|....*....|....*....|....*....|....*....|....gi 2222679194  42 LPLARIKKVMKaDPEVKMISAEAPILFAKGCDVFITELTMRAWIHAEDNKRRTLQRSDIAAALS 105Cdd:cd22909  2 LPKAPVKRIIK-KAGAERVSEDAAEELAKLLEEIAEEIAEEAVKLAKHAGRKTVKAEDIELAVK 64