type: position_score table: filename: ENCFF002NFJ.tabix.bed.gz header_mode: none zero_based: true format: tabix chrom: column_index: 0 pos_begin: column_index: 1 pos_end: column_index: 2 scores: - id: Histone_ChIP-seq_ENCSR210ZPC column_index: 3 type: float desc: signal histogram: type: number number_of_bins: 100 meta: summary: 'ChIP-seq ENCSR210ZPC [TISSUE: Homo sapiens smooth muscle cell originated from H9, TARGET: H3K27ac]' description: '**status**: released **biological\_replicates**: Rep 1, Rep 2 **summary**: female embryo (5 days) **output\_type**: replicated peaks **audit\_internal\_action**: Archived analysis {ENCAN331MWF|/analyses/ENCAN331MWF/} has in progress subobject quality standard {encode3-histone-chip|/quality-standards/encode3-histone-chip/} **audit\_warning**: Processed alignments file {ENCFF699GFE|/files/ENCFF699GFE/} processed by ChIP-seq ENCODE3 GRCh38 pipeline has 11682473 usable fragments. The minimum ENCODE standard for each replicate in a ChIP-seq experiment targeting H3K27ac-human and investigated as a narrow histone mark is 10 million usable fragments. The recommended value is > 20 million, but > 10 million is acceptable. (See {ENCODE ChIP-seq data standards|/data-standards/chip-seq/}) **audit\_warning**: PBC1 (PCR Bottlenecking Coefficient 1, M1/M\_distinct) is the ratio of the number of genomic locations where exactly one read maps uniquely (M1) to the number of genomic locations where some reads map (M\_distinct). A PBC1 value in the range 0 - 0.5 is severe bottlenecking, 0.5 - 0.8 is moderate bottlenecking, 0.8 - 0.9 is mild bottlenecking, and > 0.9 is no bottlenecking. PBC1 value > 0.9 is recommended, but > 0.8 is acceptable. ENCODE processed alignments file {ENCFF821PAH|/files/ENCFF821PAH/} processed by ChIP-seq ENCODE3 GRCh38 pipeline was generated from a library with PBC1 value of 0.89. **audit\_warning**: PBC2 (PCR Bottlenecking Coefficient 2, M1/M2) is the ratio of the number of genomic locations where exactly one read maps uniquely (M1) to the number of genomic locations where two reads map uniquely (M2). A PBC2 value in the range 0 - 1 is severe bottlenecking, 1 - 3 is moderate bottlenecking, 3 - 10 is mild bottlenecking, > 10 is no bottlenecking. PBC2 value > 10 is recommended, but > 3 is acceptable. ENCODE processed alignments file {ENCFF821PAH|/files/ENCFF821PAH/} processed by ChIP-seq ENCODE3 GRCh38 pipeline was generated from a library with PBC2 value of 9.56.' labels: reference_genome: hg38/genomes/GRCh38-hg38 accession: ENCSR210ZPC status: released assay_term_name: ChIP-seq simple_biosample_summary: female embryo (5 days) biosample_summary: Homo sapiens smooth muscle cell originated from H9 replication_type: isogenic biosample_ontology: /biosample-types/in_vitro_differentiated_cells_CL_0000192/ perturbed: false doi: 10.17989/ENCSR210ZPC date_created: '2016-04-11T19:02:47.526395+00:00' date_released: '2016-04-27' submitter_comment: '' target: H3K27ac