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Peptide·plain sequence-like

ATLPC0028851

ATLPC0028851

KCNTATCATQRLANFLVRSSNNLGPVLPPTNVGSNTY

Compare in workbenchDownload releaseAPI JSON
  • Length
    37 aa
  • Monoisotopic mass
    3921.0 Da
  • Net charge @ pH 7.4
    3.00
  • Isoelectric point
    9.54
  • GRAVY
    -0.249
On this page
  • 01 Sequence & molecular identity
  • 02 Physicochemical profile
  • 03 Distribution / Barrier
  • 04 Evidence landscape
  • 05 Product context
  • 06 Identity & reference map
  • 07 Data access & reproducibility
Coveragecounts only · not riskATLPC0028851
  • Measurements
    9
  • Endpoints
    1
  • Domains
    1/5
  • Products
    —
  • No matrix stability evidence
  • No clearance evidence
  • No immunogenicity context
  • 3 liability motifs
Jump to domain

Open the matching evidence section below

All evidence index · 9
Exposure / Absorption
No evidence
Distribution / Barrier
9 measurements
Metabolic & Proteolytic Stability
No evidence
Excretion / Persistence
No evidence
Toxicity / Safety
No evidence
01

Sequence & molecular identity

1 forms

Reviewed sequence, peptidoform forms, chemical representation, 3D references, and covalent topology used to interpret this peptide identity.

Sequence & peptidoform

·
Identity summaryCanonical sequence only
Identity status
Canonical sequence only
Residues
37
Peptidoform features
0
Documented molecular forms
1
Representations
2
Documented molecular forms1 form linked to this peptide identity
FormTopologyModificationsConnectionsRepresentationsMeasurements
ATLPF0031333———Notation only—
Residue view
Residue display
37 residues
K1C2N3T4A5T6C7A8T9Q10R11L12A13N14F15L16V17R18S19S20N21N22L23G24P25V26L27P28P29T30N31V32G33S34N35T36Y37
Secondary structureα-helix (H)β-strand (E)coil (C)
Side-chain classNonpolarPolarBasic (+)Acidic (−)Modified

Soft tints mark standard side-chain classes for scanning. Primary emphasis is reserved for reported modifications, termini, secondary-structure tracks, and topology links.

Peptidoform features

Features are shown only when a reported notation or topology record supports them.

No terminal modification, residue-level marker, disulfide, staple, coordination, or other topology signal is currently available.

Structure & chemistry

·
Chemical representationsequence / HELM only
Representation class

How the current release can interpret this identity chemically.

plain sequence-like
Parent-residue sequence

Residue string used for positional interpretation when available.

KCNTATCATQRLANFLVRSSNNLGPVLPPTNVGSNTY
HELM

Polymer notation for modified peptide representation when available.

Not available
SMILES

Chemical graph string used for atom-level 2D depiction when available.

Not available
No atom-level graph

A reviewed SMILES is required before a 2D molecular depiction can be shown. Sequence and HELM remain useful for identity interpretation, but they do not replace a chemical graph.

3D structure references2 references
Structure reference·
3D coordinates·Exact PDB matchexperimental
Exact PDB match·reference selected·length 37 aa·confidence experimental
LinkMethodConfidenceMatch
OpenExperimental coordinate entryexperimental37 aa
OpenExperimental coordinate entryexperimental37 aa
Covalent topology & modificationsnone
Exact topology not established

No reviewed form-level topology or residue-level connection annotation is attached to this peptide in the current release. This is not evidence that every molecular form is linear or unmodified.

02

Physicochemical profile

4 descriptors

Computed sequence-derived descriptors and any measured physicochemical evidence such as lipophilicity. Computed values are interpretation aids, not experimental ADMET measurements.

·
Core descriptors37 aa · pI 9.5 · GRAVY -0.25
Length
37 aa
Monoisotopic mass
3920.96 Da
Average mass
3923.43 Da
Net charge at pH 7.4
3.00
Estimated pI
9.54
GRAVY
-0.249
KD-positive residues
35.1%
Aromatic residues
5.4%
Developability interpretation
Ionization context
pH 7.4 separated from pI
Hydrophobicity balance
Leans hydrophilic
Amphipathic moment (μH)
0.81
Computation boundary
Standard-sequence only
Charge & residue composition
pH charge context

Modeled net charge across common formulation and assay pH checkpoints.

pH 2
3.98
pH 5
3.04
pH 6
3.00
pH 7.4
2.79
pH 9
0.68
pH 12
-2.41
Residue-class composition

Grouped composition is often more interpretable than a long amino-acid list.

Basic (K,R,H)
3 · 8.1%
Polar uncharged (N,Q,S,T)
15 · 40.5%
Hydrophobic aliphatic (A,V,I,L,M)
10 · 27.0%
Aromatic (F,W,Y)
2 · 5.4%
Conformational / sulfur (G,P,C)
7 · 18.9%
Top residues
N616.2%T513.5%L410.8%A38.1%P38.1%S38.1%V38.1%R25.4%
Hydropathy & amphipathic windows
Hydropathy windows

Seven-residue sliding windows expose local patches hidden by whole-sequence GRAVY.

Most hydrophobic window
11-17
RLANFLV
GRAVY 1.200
Most hydrophilic window
18-24
RSSNNLG
GRAVY -1.386
31 local hydropathy windows scanned. A local patch is context for solubility, adsorption, and membrane interaction review, not a standalone endpoint.
Amphipathic-window scan

Top alpha-helix hydrophobic-moment windows across 12, 15, 18, and 21 residues.

18 aa window
10-27
QRLANFLVRSSNNLGPVL
μH 1.78 · charge 2.0
12 aa window
11-22
RLANFLVRSSNN
μH 1.77 · charge 2.0
12 aa window
12-23
LANFLVRSSNNL
μH 1.74 · charge 1.0
15 aa window
11-25
RLANFLVRSSNNLGP
μH 1.74 · charge 2.0
12 aa window
10-21
QRLANFLVRSSN
μH 1.74 · charge 2.0
Sequence-liability cues
Sequence-liability notes

Motifs are review prompts for formulation or CMC interpretation; they are not degradation predictions.

Asn deamidation motif
NT · pos 3, 35
Asn followed by small/polar residues is a known sequence context to review for deamidation susceptibility.
Oxidation-sensitive residues
C · pos 2, 7
Met, Trp, and Cys residues can merit formulation review for oxidation or covalent-state sensitivity.
Cys covalent complexity
C · pos 2, 7
Multiple cysteines can indicate disulfide or free-thiol interpretation requirements.
Alpha-helix amphipathic projection
Helical wheel · Edmundson projection
μH = 0.81100°/residue · 37 aa
μH1: K (Lys) · Basic + · K-D -3.9K12: C (Cys) · Special · K-D 2.5C3: N (Asn) · Polar · K-D -3.5N4: T (Thr) · Polar · K-D -0.7T5: A (Ala) · Hydrophobic · K-D 1.8A56: T (Thr) · Polar · K-D -0.7T7: C (Cys) · Special · K-D 2.5C8: A (Ala) · Hydrophobic · K-D 1.8A9: T (Thr) · Polar · K-D -0.7T10: Q (Gln) · Polar · K-D -3.5Q1011: R (Arg) · Basic + · K-D -4.5R12: L (Leu) · Hydrophobic · K-D 3.8L13: A (Ala) · Hydrophobic · K-D 1.8A14: N (Asn) · Polar · K-D -3.5N15: F (Phe) · Aromatic · K-D 2.8F1516: L (Leu) · Hydrophobic · K-D 3.8L17: V (Val) · Hydrophobic · K-D 4.2V18: R (Arg) · Basic + · K-D -4.5R19: S (Ser) · Polar · K-D -0.8S20: S (Ser) · Polar · K-D -0.8S2021: N (Asn) · Polar · K-D -3.5N22: N (Asn) · Polar · K-D -3.5N23: L (Leu) · Hydrophobic · K-D 3.8L24: G (Gly) · Special · K-D -0.4G25: P (Pro) · Special · K-D -1.6P2526: V (Val) · Hydrophobic · K-D 4.2V27: L (Leu) · Hydrophobic · K-D 3.8L28: P (Pro) · Special · K-D -1.6P29: P (Pro) · Special · K-D -1.6P30: T (Thr) · Polar · K-D -0.7T3031: N (Asn) · Polar · K-D -3.5N32: V (Val) · Hydrophobic · K-D 4.2V33: G (Gly) · Special · K-D -0.4G34: S (Ser) · Polar · K-D -0.8S35: N (Asn) · Polar · K-D -3.5N3536: T (Thr) · Polar · K-D -0.7T37: Y (Tyr) · Aromatic · K-D -1.3Y37
Hydrophobic moment0.81
Mean K-D hydropathy-0.25
Approx. net charge+3
Projection angle100° / residue
The pale sector marks the direction of the hydrophobic face inferred from μH. This is a projection assumption, not a measured fold.
HydrophobicAromaticPolarBasic +Acidic −Specialhydrophobic faceμH arrow → hydrophobic face

The projection assumes an α-helix conformation; a long μH arrow indicates an amphipathic helix, common in antimicrobial peptides.Sequence > 30 aa — only termini and every fifth position are numbered because later turns share earlier wheel angles.

Method notes

Charge model: side-chain pKa D 3.9, E 4.1, C 8.5, Y 10.1, H 6.5, K 10.8, R 12.5 with EMBOSS termini. pI is estimated by binary search on modeled net charge. Hydropathy uses Kyte-Doolittle values; hydrophobic moment follows the Eisenberg alpha-helix vector-sum convention. When the basis is a parent-residue sequence, modified chemistry is intentionally not inferred.

Computed developability descriptors

Deterministic descriptors computed from the reviewed sequence or chemical structure (RDKit), each anchored to a literature method. These are computed estimates for developability interpretation — not experimental measurements — and are validated against independent reference implementations.

Sequence-derived

Computed from the standard parent-residue sequence; protein-origin metrics defined at any length.

Aliphatic index
73.78
Instability index
25.4

At or below 40 — predicted stable in vitro.

Boman index
1.60 kcal/mol
Molar extinction coefficient (280 nm)
1,490 M⁻¹·cm⁻¹

A280 (1 g/L) ≈ 0.38 · 1,615 M⁻¹·cm⁻¹ with 1 disulfide

Structure-derived descriptors are not shown because this identity has no resolved chemical structure (SMILES). This is a known coverage gap for disulfide-rich and unresolved peptidoforms, not a computation error.

03

Distribution / Barrier

9 records

What is known about distribution, binding, permeability, or barrier crossing?

Evidence records
9
Complete canonical measurements and observations attached to this domain.
Endpoint scope
1
Formal ADMET endpoints represented for this peptide.
Matched-context analysis
3
Quantitative results that may be analysed only with scientifically compatible records.
Reported-result review
6
Qualitative, narrative, or review-first results interpreted in their source context.
Endpoints in scopeBBB penetration
Evidence interpretation

Result type, analysis use, and source-check status are kept separate so a numerical value is not mistaken for a universally comparable result.

Eligible for matched-context analysis
Quantitative results whose endpoint and context must still be matched before analysis.
3
Interpret as reported
Qualitative, narrative, or review-first findings preserved in source context.
6
Supporting context only
Reference, label, clinical, or supporting context for interpretation.
0
Review before analysis
Records whose present structure does not establish a safe analysis role.
0
Evidence by endpoint

Rows are grouped by endpoint so value, assay context, interpretation layer, and reference can be checked in place.

·
BBB penetration9 records · 3 matched-context · 6 as reported · 0 context only · 0 review required
#ValueAnalysis useAssay / modelResult contextReference
1

2 %

Eligible when experimental context matches

Capillary depletion · blood-brain barrier

Result: Reported point value · Molecular form: not reported · % capillary · non saturable · Source: Primary reference linked

Reference
2

98 %

Eligible when experimental context matches

Capillary depletion · blood-brain barrier

Result: Reported point value · Molecular form: not reported · % parenchyma · non saturable · Source: Primary reference linked

Reference
3

0.12 %/g

Eligible when experimental context matches

Intravenous injection (multiple time regression) · blood-brain barrier

Result: Reported point value · Molecular form: not reported · % injected dose · non saturable · Source: Primary reference linked

Reference
4

8.99 x 10^-4 mL/g/min

Interpret as reported

Intravenous injection (multiple time regression) · blood-brain barrier

Result: Reported point value · Molecular form: not reported · Kin · non saturable · Source: Primary reference linked

Reference
5

9.54 x 10^-4 mL/g/min

Interpret as reported

Intravenous injection (multiple time regression) · blood-brain barrier

Result: Reported point value · Molecular form: not reported · Kin · non saturable · Source: Primary reference linked

Reference
6

0.0121 mL/g

Interpret as reported

Intravenous injection (multiple time regression) · blood-brain barrier

Result: Reported point value · Molecular form: not reported · Vi · non saturable · Source: Primary reference linked

Reference
7

0.0099 mL/g

Interpret as reported

Intravenous injection (multiple time regression) · blood-brain barrier

Result: Reported point value · Molecular form: not reported · Vi · non saturable · Source: Primary reference linked

Reference
8

23 %

Interpret as reported

Not specified

Result: Reported point value · Molecular form: not reported · Source: Primary reference linked

Reference
9
Observation

source reported BBB observation

Interpret as reported

Not specified

Result: Qualitative or narrative result · Molecular form: not reported · Source: Primary reference linked

Source record
Barrier and permeability assay context

PAMPA, Caco-2, MDCK/RRCK, and BBB findings are assay/model contexts under Distribution / Barrier. They should not be read as interchangeable measurements.

PAMPA
0

artificial membrane

Caco-2
0

cell monolayer

MDCK
0

cell monolayer

RRCK
0

cell monolayer

BBB
9

barrier evidence

04

Evidence landscape

9 records

Cross-domain evidence distribution and measurement-level detail; the domain modules above show evidence in context, and every row remains available for audit here.

Evidence landscape

A cross-domain view of evidence volume, scientifically permitted analysis use, and source traceability.

ADMET domain
Eligible when context matches
Interpret as reported
Supporting context only
Review before analysis
Exposure / Absorption
0 evidence records
0
0
0
0
Distribution / Barrier
9 evidence records
3
6
0
0
Metabolic & Proteolytic Stability
0 evidence records
0
0
0
0
Excretion / Persistence
0 evidence records
0
0
0
0
Toxicity / Safety
0 evidence records
0
0
0
0
Endpoint distribution

Top evidence-bearing endpoint questions.

Blood Brain Barrier Penetration
9
Assay context

Broad context buckets, useful before comparing values.

In vivo / route
5
Matrix / stability
2
Unspecified
2
Traceability

Reference-link availability for measurement-level audit.

Linked reference
9
Not linked
0
All evidence index

Every evidence record remains available for audit and drilldown. Counts describe evidence volume, not confidence.

#ADMET domainEndpointReported valueResult typeAnalysis useAssay / modelConditionReference
1
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
Observation

source reported BBB observation

Qualitative or narrative resultInterpret as reportedNot specifiedNot specified
Source record
Primary reference linked
2
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
23 %
Reported point valueInterpret as reportedNot specifiedNot specified
Reference
Primary reference linked
3
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
98 %
Reported point valueEligible when experimental context matchesCapillary depletion · blood-brain barrierNot specified
Reference
Primary reference linked
4
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
2 %
Reported point valueEligible when experimental context matchesCapillary depletion · blood-brain barrierNot specified
Reference
Primary reference linked
5
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
0.012 mL/g
Reported point valueInterpret as reportedIntravenous injection (multiple time regression) · blood-brain barrierNot specified
Reference
Primary reference linked
6
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
8.99 x 10^-4 mL/g/min
Reported point valueInterpret as reportedIntravenous injection (multiple time regression) · blood-brain barrierNot specified
Reference
Primary reference linked
7
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
0.12 %/g
Reported point valueEligible when experimental context matchesIntravenous injection (multiple time regression) · blood-brain barrierNot specified
Reference
Primary reference linked
8
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
9.54 x 10^-4 mL/g/min
Reported point valueInterpret as reportedIntravenous injection (multiple time regression) · blood-brain barrierNot specified
Reference
Primary reference linked
9
Distribution / Barrier
Distribution
Blood Brain Barrier Penetration
0.01 mL/g
Reported point valueInterpret as reportedIntravenous injection (multiple time regression) · blood-brain barrierNot specified
Reference
Primary reference linked
1–9 / 9
05

Product context

Product-level route, label, and clinical context that frames peptide-level evidence. A peptide-level summary only; product pages keep the full drilldown.

No product association in this release

This peptide is currently interpreted from sequence, structure, physicochemical, and ADMET evidence only.

Browse products
06

Identity & reference map

9 sources

Reference-level support for checking reported names, sequence notation, and peptide identity agreement.

·
Summary4 reference groups
Identity type
canonical sequence
Reported notation
1
Reference groups
4
Measurements
9
ATL peptide ID
ATLPC0028851
Identity concordance
Identity concordance
Exact reported notation

Reported sequence string matches the current peptide notation.

4 / 9
Parent-residue compatible

Reported notation differs, but resolves to the same parent-residue display.

0 / 9
Different notation

Reported notation does not resolve to the current display sequence.

0 / 9
Source sequence not captured

No source-specific sequence was captured for comparison; this is not interpreted as agreement or disagreement.

5 / 9
Reported sequence notation
Exact4 references
KCNTATCATQRLANFLVRSSNNLGPVLPPTNVGSNTY
Current identity
KCNTATCATQRLANFLVRSSNNLGPVLPPTNVGSNTY
Reported names
brainpeps_observation_v2_27_2_2_488bb8c381c9cbacbbbabrainpeps_observation_v2_27_2_2_a4912314a90ae041df45brainpeps_observation_v2_27_2_36_30fa1ee6b741bfc7b0bdbrainpeps_observation_v2_27_2_36_fe2acfc0e90734de18ec
Reference map4 reference groups
Reference map

Grouped by reference link, with endpoint scope and reported identity kept visible.

ReferenceSupportsReported identityRecords
Reference
Open
Distribution
Blood Brain Barrier Penetration
brainpeps_observation_v2_27_2_2_488bb8c381c9cbacbbba, brainpeps_observation_v2_27_2_36_30fa1ee6b741bfc7b0bd
KCNTATCATQRLANFLVRSSNNLGPVLPPTNVGSNTYexact
4 identity
4 evidence
Reference
Open
Distribution
Blood Brain Barrier Penetration
brainpeps_observation_v2_27_2_2_a4912314a90ae041df45, brainpeps_observation_v2_27_2_36_fe2acfc0e90734de18ec
KCNTATCATQRLANFLVRSSNNLGPVLPPTNVGSNTYexact
3 identity
3 evidence
Reference
Open
Distribution
Blood Brain Barrier Penetration
No reported alias
1 identity
1 evidence
Source record
Open
Distribution
Blood Brain Barrier Penetration
No reported alias
1 identity
1 evidence
07

Data access & reproducibility

Stable record access, analysis-ready files, and scripted retrieval for reproducing this profile view.

·
Record scopePublic release
ATL peptide ID
ATLPC0028851
Identity type
canonical sequence
ADMET endpoints
1
Evidence records
9
Reference groups
4
Release view
Public release
Data access

Structured peptide profile

JSON

Peptide-specific profile used by this page, including identity and evidence context.

Open JSON

Peptide catalogue

TSV

Complete frozen peptide table. Filter the ATL peptide ID column locally to isolate this record.

Download catalogue

Measurement catalogue

TSV

Complete frozen measurement table. Join or filter by ATL peptide ID for peptide-level analysis.

Download measurements
Programmatic access

The request returns the same structured peptide record used by this profile. The tabular downloads are complete frozen release tables and should be filtered locally by ATL peptide ID.

Open endpoint
GET /api/v1/peptides/ATLPC0028851
open
curl -sS 'https://admetatlas.scbdd.com/api/v1/peptides/ATLPC0028851' \
  -H 'accept: application/json' \
  -H 'X-Visibility: public_release'
ADMETatlas
peptide evidence atlas

ADMETatlas is an open, curated atlas of ADMET evidence for therapeutic peptides — spanning developability, membrane permeability and blood–brain-barrier transport, immune-recognition context, and approved-product context. Every measurement stays linked to its original source, with stable identifiers and transparent curation, so results can be traced, cited, and reproduced.

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