Reading the record for CCNH from HGNC, NCBI Gene and Ensembl.Still reading. A first read of a gene can take a while; this page waits up to 115 seconds for it, and its scripts then bring in the page, or a line saying what did not arrive.
The full name, the identifiers, the location and the notes from the sources arrive with the record. Nothing is filled in ahead of it.
Order door
The door to order for CCNH opens with the record, which decides which product it carries. The order page itself is open now.
Cytogenetic band 5q14.3NCBI: 5:87,311,471-87,412,930 on the minus strand, GRCh38.p14 (GCF_000001405.40), sequence NC_000005.10, annotation GCF_000001405.40-RS_2025_08 of 2025-08-01Ensembl: 5:87,311,473-87,413,029 on the minus strand, GRCh38.p14 (GCA_000001405.29), release 116Coordinates are one-based with both ends included, as each source reports them.
The protein encoded by this gene belongs to the highly conserved cyclin…
NCBI Gene summary
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Reading NCBI Gene and UniProt.Still reading. A first read of a gene can take a while; this page waits up to 30 seconds for it, and its scripts then bring in the panel, or a line saying what did not arrive.
02 / Transcripts and isoforms
The RNA a design targets
Reading NCBI Datasets and Ensembl.Still reading. A first read of a gene can take a while; this page waits up to 80 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
Ready in a moment
Reading NCBI Datasets and Ensembl.Still reading. A first read of a gene can take a while; this page waits up to 80 seconds for it, and its scripts then bring in the panel, or a line saying what did not arrive.
03 / Expression by tissue
Where CCNH is expressed
54 GTEx tissues; the highest median in Testis, 38.0 TPM.
GTEx
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04 / Protein
The protein CCNH encodes
Reading UniProt, InterPro, AlphaFold DB and PDBe.Still reading. A first read of a gene can take a while; this page waits up to 80 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
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05 / Interactions
Proteins STRING associates with CCNH
Reading STRING.Still reading. A first read of a gene can take a while; this page waits up to 50 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
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06 / Pathways
Where CCNH acts, as Reactome curates it
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07 / Disease associations
Diseases linked to CCNH
157 Open Targets disease associations; capillary malformation-arteriovenous malformation 1 first, at 0.70.
Open Targets
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08 / Variants
Classified variants of CCNH
Reading ClinVar.Still reading. A first read of a gene can take a while; this page waits up to 60 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
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09 / Constraint
How much variation CCNH tolerates
pLI below 0.0001 and LOEUF 0.999 in gnomAD v4 (GRCh38), on ENST00000256897.9.
gnomAD
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10 / Orthologs
The same gene in mouse, rat and human
Reading the Alliance, NCBI, Ensembl Compara and RGD.Still reading. A first read of a gene can take a while; this page waits up to 145 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
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11 /MicroRNAs
MicroRNAs hosted within CCNH
No annotated microRNA lies within CCNH in Ensembl release 116, on GRCh38.p14.
Ensembl · miRBase
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12 / Long non-coding RNAs
Long non-coding RNAs at the CCNH locus
Reading Ensembl.Still reading. A first read of a gene can take a while; this page waits up to 110 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
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13 / Literature
Papers that mention CCNH
Reading Europe PMC.Still reading. A first read of a gene can take a while; this page waits up to 55 seconds for it, and its scripts then bring in this line, or a line saying what did not arrive.
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14 / Silencing this gene
From CCNH to a sequence that silences it
The AUMsilence™ platform designs the sequences against the human transcripts on this page. Six decisions are yours before it does. What is written under each is AUM's guidance; the timings and the concentrations are in the usage guide below.
01
Choose the region
A knockdown oligonucleotide can sit in the 5' untranslated region, the coding sequence or the 3' untranslated region, and all three are used. The coding sequence and the 3' untranslated region are the usual first choices for an RNase H design; the 5' end near the start codon suits a steric block. The map above shows where each region sits on the isoforms it draws.
02
Cover the isoforms you mean
An exon every isoform carries silences the whole gene; an exon only some isoforms carry silences those and spares the rest. Decide which you want before a sequence is chosen, and check the reference transcript (MANE Select in human; RefSeq Select and Ensembl canonical in mouse and rat) is the one your cells express.
03
Think across species early
The orthologs panel says whether mouse and rat carry the same gene. Whether one oligonucleotide can serve two species is a sequence question, settled at design by matching the candidate against each transcript, not by the protein identity shown there.
04
Check expression in your model
A transcript that is not expressed in your cells cannot show knockdown. Confirm the gene is expressed in the cell type and condition you will use, from your own data or a reference atlas, before the order. The expression panel above gives GTEx's median per tissue for a human gene; for mouse and rat it says that no atlas is on this page yet.
05
Run the controls
A scramble control of the same chemistry, a positive control against a gene known to knock down in your cells, untreated cells, and a mock condition where a transfection reagent is used. Read knockdown at the RNA level first, then at the protein; the usage guide gives the timing and the concentrations to start from.
06
Pick the product
AUMsilence sdASO needs no transfection reagent and works in the cells that resist one. AUMsilence toASO is the transfection-optimised version of the same design, and AUMsiRNA™ is the siRNA route. The selection guide compares them.
For research use only. Not for use in diagnostic or therapeutic procedures.
Gene summary
The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin forms a complex with CDK7 kinase and ring finger protein MAT1. The kinase complex is able to phosphorylate CDK2 and CDC2 kinases, thus functions as a CDK-activating kinase (CAK). This cyclin and its kinase partner are components of TFIIH, as well as RNA polymerase II protein complexes. They participate in two different transcriptional regulation processes, suggesting an important link between basal transcription control and the cell cycle machinery. A pseudogene of this gene is found on chromosome 4. Alternate splicing results in multiple transcript variants.
Provided by RefSeq, Nov 2010, through NCBI Gene. NCBI disclaimer
Component of the CDK-activating kinase (CAK) complex, a master regulator of CDK activity by catalyzing the activating threonine phosphorylation of CDKs (PubMed:41100585). Binds and activates cyclin-dependent protein kinase CDK7, the catalytic subunit of CAK (PubMed:41100585). CAK activates major mediators of cell cycle control, including CDK1, CDK2, CDK4 and CDK6, and plays a key role in regulating cell cycle progression (PubMed:41100585). CAK complexed to the core-TFIIH basal transcription factor activates RNA polymerase II by serine phosphorylation of the repetitive C-terminal domain (CTD) of its large subunit (POLR2A), allowing its escape from the promoter and elongation of the transcripts (PubMed:7533895, PubMed:10024882). Involved in cell cycle control and in RNA transcription by RNA polymerase II (PubMed:7533895, PubMed:10024882). Its expression and activity are constant throughout the cell cycle
NCBI Gene summary · NCBI Gene annotation RS_2025_08 · read · NCBI Gene 902Data from NCBI, provided as is; NCBI's policies and disclaimers apply.
UniProtKB function · 2026_03 · read · UniProt P51946UniProt data are available under the Creative Commons Attribution 4.0 licence.
1 long non-coding RNA gene overlaps CCNH in Ensembl release 116, antisense, without a symbol.
26 curated, 7 inferred Reactome pathways for P51946 in human, v97.
Reactome
1,399 PubMed-indexed papers mention CCNH at Europe PMC, newest first. Europe PMC ignores letter case, so the count also covers another species' symbol spelled with the same letters.
Europe PMC
The 25 highest-scoring STRING partners at or above a combined score of 0.4, of up to 25 asked for; GTF2H4, GTF2H3, CDK7 lead.
STRING v12.0
10 RefSeq and 48 Ensembl transcripts on GRCh38.p14; MANE Select NM_001239.4.
NCBI Datasets · Ensembl
Placed on GRCh38.p14 (GCF_000001405.40). MANE Select marks the one transcript RefSeq and Ensembl agree is the reference for this gene.
RefSeq 10 transcripts
coding sequence, tall
untranslated region, thin
non-coding exon
intron, fixed width
Genomic strand: minus. Drawn 5' to 3', so exon 1 sits at the left here and at the highest coordinate on the chromosome.
NM_001239.4NM_001239.4MANE Select
A window on one transcript
One pixel of the map above stands for several bases, and a block too short to see is drawn wider than its own scale, so the map chooses a region and the sequence here chooses the window. Click an exon on a row of the map, or drag across a row; then set the exact start and end below.
These controls are ready in a moment.
No transcript is chosen.
Once a window is chosen this panel shows its length, its G and C count as a percentage of that length, the letters it is made of, the exons it falls in, whether it crosses a junction, and its antisense strand.
Not listed, because the source places them on another assembly only: XM_054353747.1 (not placed on GRCh38.p14); XR_008487193.1 (not placed on GRCh38.p14).
NCBI Datasets, RefSeq transcripts · NCBI Datasets 18.37.0; GCF_000001405.40-RS_2025_08 · read · NCBI Gene 902Data from NCBI, provided as is; NCBI's policies and disclaimers apply.
Ensembl 48 transcripts
A window on one transcript
One pixel of the map above stands for several bases, and a block too short to see is drawn wider than its own scale, so the map chooses a region and the sequence here chooses the window. Click an exon on a row of the map, or drag across a row; then set the exact start and end below.
These controls are ready in a moment.
No transcript is chosen.
Once a window is chosen this panel shows its length, its G and C count as a percentage of that length, the letters it is made of, the exons it falls in, whether it crosses a junction, and its antisense strand.
Lengths are spliced lengths, as each source states them. Exon ranks follow the strand: on a minus-strand gene exon 1 has the highest genomic coordinate. Reference assembly for human: GRCh38.
NM_001364076.2NM_001364076.2
NM_001363539.2NM_001363539.2
NM_001364075.2NM_001364075.2
NM_001199189.2NM_001199189.2
XM_047417863.1XM_047417863.1
NR_157071.2NR_157071.2
NR_157068.2NR_157068.2
NR_157070.2NR_157070.2
NR_157069.2NR_157069.2
scale
Drawn 5' to 3' from each transcript's exons as placed on the reference assembly; exon 1 is the 5' exon on the transcript's own strand. Exon blocks are to scale with each other; introns are drawn at one fixed width whatever their length, so the map is not to scale along the chromosome. Numbers are exon ranks along the strand; a rank is omitted where the exon is too narrow to carry it.
Drawn 5' to 3' from each transcript's exons as placed on the reference assembly; exon 1 is the 5' exon on the transcript's own strand. Exon blocks are to scale with each other; introns are drawn at one fixed width whatever their length, so the map is not to scale along the chromosome. Numbers are exon ranks along the strand; a rank is omitted where the exon is too narrow to carry it.
ClinVar asked this site to slow down, so the variant counts could not be read. Try again in a minute. Reference 750e5615-a60.
323 residues, reviewed P51946; 13 entries from the member databases this page shows along the chain; mean pLDDT 86.38; 49 PDB entries.
UniProt · InterPro · AlphaFold DB · PDBe
Mouse Ccnh by 3 of 3 votes; rat Ccnh by 3 of 3 votes. RGD is not answering, so the ortholog list could not be shown. Try again later. Reference 4b3cfb2f-759.
